【12c新特性】12cR1 diff 11gR2 Hidden Parameters

_ILM_FILTER_TIME	0	Upper filter time for ILM block compression
_ILM_FILTER_TIME_LOWER	0	Lower filter time for ILM block compression
_ILM_POLICY_NAME	FALSE	User specified ILM policy name
__data_transfer_cache_size	0	Actual size of data transfer cache
_abort_on_mrp_crash	FALSE	abort database instance when MRP crashes
_ac_enable_dscn_in_rac	FALSE	Enable Dependent Commit SCN tracking
_adaptive_scalable_log_writer_disable_worker_threshold	90	Percentage of overlap across multiple outstanding writes
_adaptive_scalable_log_writer_enable_worker_threshold	200	Increase in redo generation rate as a percentage
_adaptive_window_consolidator_enabled	TRUE	enable/disable adaptive window consolidator PX plan
_add_nullable_column_with_default_optim	TRUE	Allows add of a nullable column with default optimization
_adg_buffer_wait_timeout	10	Active Dataguard buffer wait time in cs
_adg_instance_recovery	TRUE	enable ADG instance recovery
_advanced_index_compression_options	0	advanced index compression options
_advanced_index_compression_options_value	20	advanced index compression options2
_advanced_index_compression_trace	0	advanced index compression trace
_allow_file_1_offline_error_1245	FALSE	don’t signal ORA-1245 due to file 1 being offline
_alter_common_user_schema	TRUE	allow local user to create objects in common schema
_am_container_filesystem_ausize	4194304	allocation unit size for non-ASM containers
_am_max_containers	0	maximum number of containers
_am_max_groups	0	maximum number of containers
_am_max_seg_bytes	4000	maximum number of bytes per array segment
_am_timeouts_enabled	TRUE	enable timeouts
_am_trace_buffer_size	131072	size of per-process I/O trace buffer
_appqos_cdb_setting	0	QoSM CDB Performance Class Setting
_appqos_po_multiplier	1000	Multiplier for PC performance objective value
_aq_disable_x	FALSE	AQ �C Disable new cross processes at an instance
_aq_dq_sessions	20	Deq session count
_aq_eq_sessions	10	Enq session count
_aq_init_shards	5	Minimum enqueue shards per queue at an instance
_aq_precrt_partitions	0	Precreate Partitions
_aq_pt_processes	1	Partition background processes
_aq_stop_backgrounds	FALSE	Stop all AQ background processes
_aq_subshard_Size	2000	Sub Shard Size
_aqsharded_cache_limit	0	Limit for cached enqueue/dequeue operations
_array_cdb_view_enabled	TRUE	array mode enabled for CDB views
_asm_access	auto	ASM File access mechanism
_asm_allow_unsafe_reconnect	TRUE	attempt unsafe reconnect to ASM
_asm_allowdegeneratemounts	TRUE	Allow force-mounts of DGs w/o proper quorum
_asm_dba_spcchk_thld	20000	ASM Disk Based Allocation Space Check Threshold
_asm_disable_ufg_dump	FALSE	disable terminated umbilicus diagnostic
_asm_disable_ufgmemberkill	FALSE	disable ufg member kill
_asm_diskerr_traces	2	Number of read/write errors per disk a process can trace
_asm_diskgroups2		disk groups to mount automatically set 2
_asm_diskgroups3		disk groups to mount automatically set 3
_asm_diskgroups4		disk groups to mount automatically set 4
_asm_enable_xrov	FALSE	Enable XROV capability
_asm_global_dump_level	267	System state dump level for ASM asserts
_asm_healthcheck_timeout	180	seconds until health check takes action
_asm_network_timeout	1	Keepalive timeout for ASM network connections
_asm_networks		ASM network subnet addresses
_asm_nodekill_escalate_time	180	secs until escalating to nodekill if fence incomplete
_asm_noevenread_diskgroups		List of disk groups having even read disabled
_asm_procs_trace_diskerr	5	Number of processes allowed to trace a disk failure
_asm_proxy_startwait	60	Maximum time to wait for ASM proxy connection
_asm_remote_client_timeout	300	timeout before killing disconnected remote clients
_asm_resyncCkpt	1024	number of extents to resync before flushing checkpoint
_asm_scrub_limit	AUTO	ASM disk scrubbing power
_asm_skip_diskval_check	FALSE	skip client side discovery for disk revalidate
_asm_trace_limit_timeout	30000	Time-out in milliseconds to reset the number of traces per disk and the number of processes allowed to trace
_autotask_test_name	N/A	Name of current Autotask Test (or test step)
_aux_dfc_keep_time	1440	auxiliary datafile copy keep time in minutes
_awr_cdbperf_threshold	21	Setting for AWR CDBPERF Threshold
_awr_mmon_deep_purge_all_expired	FALSE	Allows deep purge to purge AWR data for all expired snapshots
_awr_pdb_registration_enabled	FALSE	Parameter to enable/disable AWR PDB Registration
_awr_remote_target_dblink		AWR Remote Target DBLink for Flushing
_backup_ksfq_bufmem_max	2.68E+08	maximum amount of memory (in bytes) used for buffers for backup/restore
_backup_min_ct_unused_optim	2097152	mimimun size in bytes of change tracking to apply unused space optimuzation
_bct_mrp_timeout	600	CTWR MRP wait timeout (seconds), zero to wait forever
_bct_public_dba_buffer_dynresize	2	allow dynamic resizing of public dba buffers, zero to disable
_bct_public_dba_buffer_maxsize	0	max buffer size permitted for public dba buffers, in bytes
_bg_spawn_diag_opts	0	background processes spawn diagnostic options
_block_level_offload_high_lat_thresh	40000	High Latency Threshold for Block Level Offload operations
_bloom_filter_size	0	bloom filter vector size (in KB)
_bloom_predicate_offload	TRUE	enables or disables bloom filter predicate offload to cells
_bloom_rm_filter	FALSE	remove bloom predicate in favor of zonemap join pruning predicate
_bloom_sm_enabled	FALSE	enable bloom filter optimization using slave mapping
_broadcast_scn_mode	1	broadcast-on-commit scn mode
_cache_orl_during_open	ALL	cache online logs
_cdb_compatible	TRUE	CDB Compatible
_cdb_rac_affinity	TRUE	rac affinity for parallel cdb operations
_cell_materialize_all_expressions	FALSE	Force materialization of all offloadable expressions on the cells
_cell_materialize_virtual_columns	TRUE	enable offload of expressions underlying virtual columns to cells
_cell_object_expiration_hours	24	flashcache object expiration timeout
_cell_offload_complex_processing	TRUE	enable complex SQL processing offload to cells
_cell_offload_expressions	TRUE	enable offload of expressions to cells
_cell_offload_sys_context	TRUE	enable offload of SYS_CONTEXT evaluation to cells
_cgs_comm_readiness_check	1	CGS communication readiness check
_cgs_memberkill_from_rim_instance	FALSE	allow a RIM instance to issue a CSS member kill
_cgs_msg_batch_size	4096	CGS message batch size in bytes
_cgs_msg_batching	TRUE	CGS message batching
_cgs_ticket_sendback	50	CGS ticket active sendback percentage threshold
_check_pdbid_in_redo	FALSE	Enable checking of pluggable database ID in redo
_cleanout_shrcur_buffers	TRUE	if TRUE, cleanout shrcur buffers
_cli_cachebktalloc	100	Percentage of memory to allocate
_client_enable_auto_unregister	FALSE	enable automatic unregister after a send fails with timeout
_clone_one_pdb_recovery	FALSE	Recover ROOT and only one PDB in clone database
_cloud_name		gsm cloud name
_collect_tempundo_stats	TRUE	Collect Statistics v$tempundostat
_common_data_view_enabled	TRUE	common objects returned through dictionary views
_common_user_prefix	C##	Enforce restriction on a prefix of a Common User/Role/Profile name
_concurrency_chosen	10	what is the chosen value of concurrency
_controlfile_cell_flash_caching	3	Flash cache hint for control file accesses
_cpu_eff_thread_multiplier		CPU effective thread multiplier
_crash_domain_on_exception	0	allow domain to exit for exceptions in any thread
_create_stat_segment	0	create ilm statistics segment
_ctx_doc_policy_stems	FALSE	enable ctx_doc.policy_stems api
_cu_row_locking	0	CU row level locking
_cursor_reload_failure_threshold	0	Number of failed reloads before marking cursor unusable
_cvmap_buffers	5000	Number of change vector buffers for multi instance media recovery
_data_transfer_cache_bc_perc_x100	500	Percentange * 100 of buffer cache to transfer to data transfer cache
_data_transfer_cache_size	0	Size of data transfer cache
_data_warehousing_scan_buffers	TRUE	if TRUE, enable data warehousing scan buffers
_datapump_compressbas_buffer_size	0	specifies buffer size for BASIC compression algorithm
_datapump_metadata_buffer_size	131072	specifies buffer size for metadata file I/O
_datapump_tabledata_buffer_size	262144	specifies buffer size for table data file I/O
_db_block_cache_history_lru	FALSE	buffer header tracing for lru operations
_db_block_prefetch_wasted_threshold_perc	2	Allowed wasted percent threshold of prefetched size
_db_dump_from_disk_and_efc	0	dump contents from disk and efc
_db_dw_scan_adaptive_cooling	FALSE	if TRUE, enable adaptive DW scan cooling
_db_dw_scan_max_shadow_count	5	DW Scan adaptive cooling max shadow count
_db_dw_scan_obj_cooling_factor	500	DW Scan object cooling factor to cool all temperatures
_db_dw_scan_obj_cooling_interval	100	DW Scan object cooling interval in number of scans, seconds, or pct of cache size
_db_dw_scan_obj_cooling_policy	CACHE_SIZE	DW scan objtect cooling policy
_db_dw_scan_obj_warming_increment	1000	DW Scan object warming increment when an object is scanned
_db_flash_cache_max_latency	400	Flash cache maximum latency allowed in 10 milliseconds
_db_flash_cache_max_outstanding_writes	32	Flash cache maximum outstanding writes allowed
_db_flash_cache_max_read_retry	3	Flash cache max read retry
_db_flash_cache_max_slow_io	3	Flash cache maximum slow io allowed
_db_num_gsm	0	database number in gsm dbpool
_dbfs_modify_implicit_fetch	TRUE	DBFS Link allows implicit fetch on modify �C only on SecureFiles
_dbg_scan	0	generic scan debug
_dbop_enabled	1	Any positive number enables automatic DBOP monitoring. 0 is disabled
_dbpool_name		gsm database pool name
_dd_validate_remote_locks	TRUE	GES deadlock detection validate remote locks
_deadlock_record_to_alert_log	TRUE	record resolved deadlocks to the alert log
_defer_sga_alloc_chunk_size	1.07E+09	Chunk size for defer sga allocation
_defer_sga_enabled	FALSE	Enable deferred shared memory allocation for SGA
_defer_sga_min_spsz_at_startup	5.37E+10	Minimum shared pool size at startup with deferred sga enabled
_defer_sga_min_total_defer_segs_sz	1.07E+11	Minimum total deferred segs size for defer sga allocation
_defer_sga_test_alloc_intv	0	SA** sleeps for N secs before allocating a deferred segment
_deferred_seg_in_seed	TRUE	Enable Deferred Segment Creation in Seed
_diag_test_seg_reinc_mode	FALSE	Sets trace segmentation to be in reincarnation mode
_diag_xm_enabled	FALSE	If TRUE, DIAG allows message exchanges across DB/ASM boundary
_disable_12cbigfile	FALSE	DIsable Storing ILM Statistics in 12cBigFiles
_disable_directory_link_check	FALSE	Disable directory link checking
_disable_flashback_recyclebin_opt	TRUE	Don’t use the Flashback Recyclebin optimization
_disable_rolling_patch	0	Disable Rolling Patch Feature
_dm_dmf_details_compatibility	12.1.0	set dm dmf details compatibility version
_dm_enable_legacy_dmf_output_types	FALSE	revert dmf output types to pre-12.1.0.1
_dnfs_rdma_enable	1	Enable dNFS RDMA transfers
_dnfs_rdma_max	1048576	Maximum size of dNFS RDMA transfer
_dnfs_rdma_min	8192	Minimum size of dNFS RDMA transfer
_drop_stat_segment	0	drop ilm statistics segment
_dump_10261_level	0	Dump level for event 10261, 1=>minimal dump 2=>top pga dump
_dump_scn_increment_stack		Dumps scn increment stack per session
_emon_pool_inc	1	increment in EMON slaves per pool type
_emon_pool_max	10	maximum number of EMON slaves per pool type
_emon_pool_min	1	minimum number of EMON slaves per pool type
_emon_send_timeout	10000	send timeout after which the client is unregistered
_emx_control	0	EM Express control (internal use only)
_emx_max_sessions	128	Maximum number of sessions in the EM Express cache
_emx_session_timeout	3600	Session timeout (sec) in the EM Express cache
_enable_12g_bft	TRUE	enable 12g bigfile tablespace
_enable_columnar_cache	0	Enable Columnar Flash Cache Rewrite
_enable_heatmap_internal	FALSE	heatmap related �C to be used by oracle dev only
_enable_iee_stats	TRUE	enables IEE stats gathering
_enable_ilm_flush_stats	TRUE	Enable ILM Stats Flush
_enable_ilm_testflush_stats	FALSE	Enable Test ILM Stats Flush
_enable_offloaded_writes	FALSE	Enable offloaded writes for Unit Test
_enable_pluggable_database	FALSE	Enable Pluggable Database
_enable_securefile_flashback_opt	FALSE	Enable securefile flashback optimization
_enqueue_deadlock_detect_all_global_locks	FALSE	enable deadlock detection on all global enqueues
_enqueue_sync_retry_attempts	3	max number of times the bg process to retry synchronous enqueue open if it failed because master could not allocate memory
_enqueue_sync_sim_mem_error	FALSE	simulate master instance running out of memory when synchronously getting a remotely mastered enqueue
_external_scn_logging_threshold_seconds	86400	High delta SCN threshold in seconds
_external_scn_rejection_delta_threshold_minutes	0	external SCN rejection delta threshold in minutes
_external_scn_rejection_threshold_hours	24	Lag in hours between max allowed SCN and an external SCN
_fast_index_maintenance	TRUE	fast global index maintenance during PMOPs
_fast_psby_conversion	TRUE	Enable fast physical standby conversion
_flush_ilm_stats	0	flush ilm stats
_force_logging_in_upgrade	TRUE	force logging during upgrade mode
_force_sys_compress	TRUE	Sys compress
_full_diag_on_rim	FALSE	rim nodes have full DIA* function
_gc_affinity_acquire_time	TRUE	if TRUE, save the time we acquired an affinity lock
_gc_async_send	FALSE	send blocks asynchronously
_gc_fg_spin_time	0	foreground msgq spin time
_gc_object_queue_max_length	0	maximum length for an object queue
_gc_save_cleanout	TRUE	if TRUE, save cleanout to apply later
_gc_split_flush	FALSE	if TRUE, flush index split redo before rejecting bast
_gc_temp_affinity	FALSE	if TRUE, enable global temporary affinity
_gcr_cpu_min_free	10	minimum amount of free CPU to flag an anomaly
_gcr_enable_high_memory_kill	FALSE	if TRUE, GCR may kill foregrounds under high memory load
_gcr_enable_new_drm_check	FALSE	if FALSE, revert to old drm load metric
_gcr_enable_statistical_cpu_check	TRUE	if FALSE, revert to old cpu load metric
_gcr_high_memory_threshold	10	minimum amount of Memory process must consume to be kill target
_gcr_max_rt_procs		maximum number of RT DLM processes allowed by GCR
_gcr_mem_min_free	10	minimum amount of free memory to flag an anomaly
_gcs_disable_switch_role_with_writer	TRUE	if TRUE, disable switching to local role with a writer
_gcs_min_slaves	0	if non zero, it enables the minimum number of gcs slaves
_gcs_res_hash_buckets		number of gcs resource hash buckets to be allocated
_gcs_reserved_resources	400	allocate the number of reserved resources in reconfiguration
_gcs_reserved_shadows	400	allocate the number of reserved shadows in reconfiguration
_ges_default_lmds	*	default lmds for enqueue hashing
_ges_direct_free	FALSE	if TRUE, free each resource directly to the freelist
_ges_direct_free_res_type	CT	string of resource types(s) to directly free to the freelist
_ges_dump_open_locks	FALSE	if TRUE, dump open locks for the LCK process during shutdown
_ges_fggl	TRUE	DLM fg grant lock on/off
_ges_freeable_res_chunk_free	FALSE	if TRUE, free dynamic resource chunks which are freeable
_ges_freeable_res_chunk_free_interval	180	time interval for freeing freeable dynamic resource chunks
_ges_gather_res_reuse_stats	FALSE	if TRUE, gather resource reuse statistics
_ges_hash_groups	*	enqueue hash table groups
_ges_lmd_mapping	*	enqueue to lmd mapping
_ges_nres_divide	0	how to divide number of enqueue resources among hash tables
_ges_resource_memory_opt	4	enable different level of ges res memory optimization
_ges_server_processes	1	number of background global enqueue server processes
_grant_secure_role	FALSE	Disallow granting of SR to NSR
_gsm		GSM descriptions
_gsm_config_vers	0	version of gsm config
_gsm_cpu_thresh	75	CPU busy threshold
_gsm_drv_interval	30	metric derived values interval
_gsm_max_instances_per_db	8	maximum number of instances per database in gsm cloud
_gsm_max_num_regions	10	maximum number of regions in gsm cloud
_gsm_region_list		List of GSM Regions
_gsm_srlat_thresh	20	Single block read latency threshold
_gsm_thresh_respct	50	threshold resource percentage
_gsm_thresh_zone	10	threshold zone
_gwm_spare1		gsm spare 1
_gwm_spare2	0	gsm spare 2
_gwm_spare3	0	gsm spare 3
_hang_base_file_count	5	Number of trace files for the normal base trace file
_hang_base_file_space_limit	20000000	File space limit for current normal base trace file
_hang_bool_spare1	TRUE	Hang Management 1
_hang_cross_boundary_hang_detection_enabled	TRUE	Hang Management Cross Boundary detection
_hang_delay_resolution_for_libcache	TRUE	Hang Management delays hang resolution for library cache
_hang_hang_analyze_output_hang_chains	TRUE	if TRUE hang manager outputs hang analysis hang chains
_hang_int_spare2	FALSE	Hang Management 2
_hang_log_verified_hangs_to_alert	FALSE	Hang Management log verified hangs to alert log
_hang_lws_file_space_limit	20000000	File space limit for current long waiting session trace file
_hang_monitor_archiving_related_hang_interval	300	Time in seconds ignored hangs must persist after verification
_hang_resolution_allow_archiving_issue_termination	TRUE	Hang Management hang resolution allow archiving issue termination
_hang_terminate_session_replay_enabled	FALSE	Hang Management terminates sessions allowing replay
_hashops_prefetch_size	4	maximum no of rows whose relevant memory locations are prefetched
_heatmap_format_1block	FALSE	heatmap related �C to be used by oracle dev only
_heatmap_min_maxsize	0	Internal testing only
_hm_xm_enabled	TRUE	If TRUE, DIA0 allows message exchanges across DB/ASM boundary
_ilm_mem_limit	10	percentage of the max shared pool heat-map can use �C internal
_ilmflush_stat_limit	0	ILM flush statistics limit �C Internal testing only
_ilmset_stat_limit	0	ILM set statistics limit �C Internal testing only
_ilmstat_memlimit	10	Percentage of shared pool for use by ILM Statistics
_image_redo_gen_delay	0	Image redo generation delay in centi-seconds (direct write mode)
_imr_rr_holder_kill_time	300	IMR max time instance is allowed to hold RR lock in seconds
_index_load_buf_oltp_sacrifice_pct	10	index load buf oltp sacrifice pct
_index_load_buf_oltp_under_pct	85	index load buf and comp oltp under-estimation pct
_index_max_inc_trans_pct	20	max itl expand percentage soft limit during index insert
_io_internal_test	0	I/O internal testing parameter
_io_osd_param	1	OSD specific parameter
_io_outlier_threshold	500	Latency threshold for io_outlier table
_ka_allow_reenable	FALSE	reenability of kernel accelerator service after disable
_ka_compatibility_requirement	all	kernel accelerator compatibility operation requirement
_ka_doorbell	0	kernel accelerator doorbell mode
_ka_locks_per_sector	4	locks per sector in kernel accelerator
_ka_mode	0	kernel accelerator mode
_ka_msg_reap_count	40	maximum number of KA messages to receive and process per wait
_ka_pbatch_messages	TRUE	kernel accelerator perform pbatch messages
_kcfis_automem_level	1	Set auto memory management control for kcfis memory allocation
_kcfis_cell_passthru_dataonly	TRUE	Allow dataonly passthru for smart scan
_kcfis_celloflsrv_passthru_enabled	FALSE	Enable offload server usage for passthru operations
_kcfis_celloflsrv_usage_enabled	TRUE	Enable offload server usage for offload operations
_kcfis_qm_prioritize_sys_plan	TRUE	Prioritize Quaranitine Manager system plan
_kcfis_qm_user_plan_name		Quaranitine Manager user plan name
_kdizoltp_uncompsentinal_freq	16	kdizoltp uncomp sentinal frequency
_kdlf_read_flag	0	kdlf read flag
_kdli_descn_adj	FALSE	coalesce extents with deallocation scn adjustment
_kdli_mts_so	TRUE	use state objects in shared server for asyncIO pipelines
_kdli_ralc_length	10485760	lob length threshold to trigger rounded allocations
_kdli_ralc_rounding	1048576	rounding granularity for rounded allocations
_kdz_pred_nrows	32767	Number of rows to predicate at a time in kdzt
_kdz_proj_nrows	1024	Number of rows to project at a time in kdzt
_kecap_cache_size	10240	Workload Replay INTERNAL parameter used to set memory usage in  Application Replay
_kffmlk_hash_size	512	size of kffmlk_hash table
_kffmop_chunks	42	number of chunks of kffmop’s
_kgl_cap_hd_alo_stacks	FALSE	capture stacks for library cache handle allocation
_kjac_force_outcome_current_session	FALSE	if TRUE, enable to run force outcome on the current session
_kjdd_call_stack_dump_enabled	FALSE	Enables printing of short call stack with the WFG
_kjdd_wfg_dump_cntrl	0	To control the way Wait-For_Graph is dumped
_kjltmaxgt	1000	record latch requests that takes longer than this many us
_kjltmaxht	1000	record latch reqeust that are held longer than this many us
_kjlton	FALSE	track DLM latch usage on/off
_kqdsn_max_instance_bits	8	maximum bits used for instance value in sequence partition
_kqdsn_min_instance_bits	0	minimum bits used for instance value in sequence partition
_kqdsn_partition_ratio	30	ratio of instance to session bits in sequence partition
_kqr_optimistic_reads	FALSE	optimistic reading of row cache objects
_ksipc_libipc_path		over-ride default location of libipc
_ksipc_mode	0	ksipc mode
_ksipc_spare_param1	0	ksipc spare param 1
_ksipc_spare_param2		ksipc spare param 2
_ksipc_wait_flags	0	tune ksipcwait
_ksmlsaf	0	KSM log alloc and free
_ksv_slave_exit_timeout	120	slave exit timeout
_ksxp_skgxp_ant_options		SKGXP ANT options
_ksxp_skgxp_inets		limit SKGXP networks
_ktilmsc_exp	600	expiration time of ktilm segment cache (in second)
_ktspsrch_scchk	60	cleanout check time of space search cache
_ktspsrch_scexp	60	expiration time of space search cache
_ktst_rss_max	1000	maximum temp extents to be released across instance
_ktst_rss_min	100	minimum temp extents to be released across instance
_ktst_rss_retry	2	maximum retries of sort segment release
_kxdbio_ctx_init_count	32	initial count of KXDBIO state object
_kxdbio_disable_offload_opcode	0	KXDBIO Disable offload for the set opcodes.  Value is a Bitmap of    0×00000001 �C disable cell to cell data copy offload    0×00000002 �C disable disk scrubbing offload to cell    0×00000004 �C disable offloaded writes to cell
_kxdbio_enable_ds_opcode	0	KXDBIO Enable Dumb storage simulation for the set opcodes.
_kxdbio_hca_loadavg_thresh	98	HCA loadavg threshold at which writes need to get offloaded
_kxdbio_ut_ctl	0	kxdbio unit test controls
_latch_wait_list_pri_sleep_secs	1	Time to sleep on latch wait list until getting priority
_ldr_tempseg_threshold	8388608	amount to buffer prior to allocating temp segment (extent sizing)
_lgwr_io_outlier	0	LGWR I/O outlier frequency
_lm_big_cluster_optimizations	FALSE	enable certain big cluster optimizations in drm
_lm_comm_channel	ksxp	GES communication channel type
_lm_comm_msgq_busywait	10	busy wait time in microsecond for msgq
_lm_comm_reap_count	1	message reap count for receive
_lm_comm_tkts_add_factor	10	Ticket allocation addition factor
_lm_comm_tkts_calc_period_length	5	Weighted average calculation interval length (second)
_lm_comm_tkts_max_periods	10	Max number of periods used in weighted avearage calculation
_lm_comm_tkts_min_decrease_wait	120	Time to wait before allowing an allocation decrease
_lm_comm_tkts_min_increase_wait	25	Time to wait before allowing an allocation increase
_lm_comm_tkts_mult_factor	200	Ticket allocation multiplication factor
_lm_comm_tkts_nullreq_threshold	25	Null request frequency threshold (percentage)
_lm_drmopt12	8	enable drm scan optimizations in 12
_lm_drmopt12_nolatch	TRUE	enable drm latching optimizations in 12
_lm_enqueue_blocker_dump_timeout_cnt	30	enqueue blocker dump timeout count
_lm_fdrm_stats	FALSE	gather full drm statistics
_lm_hashtable_bkt_high	5	High element threshold in hash table bucket
_lm_hashtable_bkt_low	3	Low element threshold in hash table bucket
_lm_hashtable_bkt_thr	70	Threshold for hash table resizing
_lm_hb_acceptable_hang_condition	default	list of acceptable hang conditions in heartbeat check
_lm_hb_enable_acl_check	TRUE	to enable the wait analysis with acceptable condition lists
_lm_hb_exponential_hang_time_factor	2	heartbeat exponential hang time multiplier
_lm_hb_maximum_hang_report_count	20	maximum heartbeat hang report count
_lm_idle_connection_kill_max_skips	1	GES idle connection max skip kill request
_lm_idle_connection_max_ignore_kill_count	2	GES maximum idle connection kill request ignore count
_lm_idle_connection_quorum_threshold	50	GES idle connection health quorum threshold
_lm_lms_opt_priority	TRUE	enable freeslot lms priority optimization
_lm_lms_priority_check_frequency	60000	frequency of LMS priority decisions in milliseconds
_lm_msg_pool_dump_threshold	20000	GES message pool dump threshold in terms of buffer count
_lm_num_bnft_stats_buckets	1	number of buckets in the benefit stats hash table
_lm_process_lock_q_scan_limit	100	limit on scanning process lock queue instead of resource convert lock queue
_lm_res_tm_hash_bucket	0	number of extra TM resource hash buckets
_lm_resend_open_convert_timeout	30	timeout in secs before resubmitting the open-convert
_lm_rm_slaves	1	if non zero, it enables remastering slaves
_lm_wait_pending_send_queue	TRUE	GES wait on pending send queue
_lock_ref_constraint_count	50	number of nowait attempts to lock referential constraint
_log_undo_df_info	FALSE	generate marker to log file# that belong to undo tablespace
_log_write_info_size	4096	Size of log write info array
_log_writer_worker_dlm_hearbeat_update_freq	5000	LGWR worker DLM health-monitoring heartbeat update frequency (ms)
_lthread_cleanup_intv_secs	5	interval for cleaning lightweight threads in secs
_lthread_clnup_hk_wait_secs	3	timeout after hard killing operation for lthread to exit
_lthread_clnup_pmon_softkill_wait_secs	1	wait timeout for PMON between soft kill and hard kill of lthreads
_lthread_clnup_spawner_sk_wait_secs	30	timeout for spawner between soft kill and hard kill of lthreads
_lthread_debug	FALSE	Enable Debugging mode for lightweight threads
_lthread_enabled	TRUE	Enable lightweight threads
_lthread_max_spawn_time_csecs	12000	maximum time interval a spawner will wait for a lthread to get ready
_lthread_spawn_check_intv_ms	10	time interval for a spawner to check for spawnee to get ready
_lthread_step_debugging	FALSE	Enable Step wise Debugging mode for lightweight threads
_max_clients_per_emon	256	maximum number of clients per emon
_max_data_transfer_cache_size	5.37E+08	Maximum size of data transfer cache
_max_defer_gran_xfer_atonce	10	Maximum deferred granules transferred by MMAN atonce
_max_incident_file_size		Maximum size (in KB, MB, GB, Blocks) of incident dump file
_max_kcnibr_ranges	1048576	Max number of nonlogged data block ranges
_max_log_write_io_parallelism	1	Maximum I/O parallelism within a log write (auto=0)
_max_log_write_parallelism	1	Maximum parallelism within a log write (auto=0)
_max_outstanding_log_writes	2	Maximum number of outstanding redo log writes
_max_queued_report_requests	300	Maximum number of report requests that can be queued in a list
_max_report_flushes_percycle	5	Max no of report requests that can be flushed per cycle
_max_string_size_bypass	0	controls error checking for the max_string_size parameter
_max_sys_next_extent	0	Dictionary managed SYSTEM tablespace maximum next extent size in MB (allowed range [16-4095], 0 if unlimited)
_memory_max_tgt_inc_cnt	0	counts the times checker increments memory target
_midtier_affinity_cluswait_prc_threshold	6	cluster wait precentage threshold to enter affinity
_min_time_between_psp0_diag_secs	300	minimum time between PSP0 diagnostic used for flow control
_modify_column_index_unusable	FALSE	allow ALTER TABLE MODIFY(column) to violate index key length limit
_mpmt_enabled_backgrounds	*	mpmt enabled backgrounds
_mpmt_fg_enabled	FALSE	MPMT mode foreground enabled
_mpmt_procs_per_osp	100	max procs per osp
_multi_transaction_optimization_enabled	TRUE	reduce SGA memory use during create of a partitioned table
_mv_add_log_placeholder	TRUE	add log placeholder
_mv_cleanup_orphaned_metadata	TRUE	cleanup orphaned materialized view metadata
_mv_complete_refresh_conventional	FALSE	use conventional INSERTs for MV complete refresh
_mv_deferred_no_log_age_val	TRUE	avoid build deferred MV log age validate
_mv_expression_extend_size	4096	MV expression extend size
_mv_refresh_insert_no_append	TRUE	materialized view refresh using insert no append
_nameservice_consistency_check	TRUE	NameService Consistency check switch
_net_timeout_latency	0	NET_TIMEOUT latency
_no_small_file	FALSE	Not to apply new extent scheme for small file temp spaces
_no_stale_joinback_rewrite	FALSE	No joinbacks if mv is stale
_nologging_kcnbuf_hash_buckets	1024	Number of nologging buffer hash buckets
_nologging_kcnbuf_hash_latches	256	Number of nologging buffer hash latches
_nologging_load_slotsz	1048576	Nologging standby: direct load buffer size
_nologging_sdcl_append_wait	100	Nologging standby append sdcl wait time
_nologging_sendbuf_ratio	99	Nologging standby: outstanding send buffer ratio
_nologging_txn_cmt_wait	1500	Nologging standby transaction commit wait time
_noncdb_to_pdb	FALSE	converting a non-cdb to a pdb
_numa_shift_enabled	TRUE	Enable NUMA shift
_numa_shift_value	0	user defined value for numa nodes shift
_number_group_memberships_per_cache_line	3	maximum number of group memberships per cache line
_odci_aggregate_save_space	FALSE	trade speed for space in user-defined aggregation
_olap_row_load_time_precision	DEFAULT	OLAP Row Load Time Precision
_old_extent_scheme	FALSE	Revert to old extent allocation
_oltp_comp_dbg_scan	0	oltp compression scan debug
_oltp_spill	FALSE	spill rows for oltp compression if loader pga limit is exceeded
_omni_enqueue_enable	1	Enable Omni Enqueue feature (0 = disable, 1 = enable on ASM (default), 2 = enable)
_online_ctas_diag	0	controls dumping diagnostic information for online ctas
_optimizer_adaptive_plan_control	0	internal controls for adaptive plans
_optimizer_adaptive_plans	TRUE	enable adaptive plans
_optimizer_ads_max_table_count	0	maximum number of tables in a join under ADS
_optimizer_ads_time_limit	0	maximum time limit (seconds) under ADS
_optimizer_ads_use_result_cache	TRUE	use result cache for ADS queries
_optimizer_ansi_join_lateral_enhance	TRUE	optimization of left/full ansi-joins and lateral views
_optimizer_ansi_rearchitecture	TRUE	re-architecture of ANSI left, right, and full outer joins
_optimizer_batch_table_access_by_rowid	TRUE	enable table access by ROWID IO batching
_optimizer_cluster_by_rowid	TRUE	enable/disable the cluster by rowid feature
_optimizer_cluster_by_rowid_control	3	internal control for cluster by rowid feature mode
_optimizer_cube_join_enabled	TRUE	enable cube join
_optimizer_dsdir_usage_control	126	controls optimizer usage of dynamic sampling directives
_optimizer_gather_feedback	TRUE	optimizer gather feedback
_optimizer_gather_stats_on_load	TRUE	enable/disable online statistics gathering
_optimizer_generate_transitive_pred	TRUE	optimizer generate transitive predicates
_optimizer_hybrid_fpwj_enabled	TRUE	enable hybrid full partition-wise join when TRUE
_optimizer_multi_table_outerjoin	TRUE	allows multiple tables on the left of outerjoin
_optimizer_null_accepting_semijoin	TRUE	enables null-accepting semijoin
_optimizer_partial_join_eval	TRUE	partial join evaluation parameter
_optimizer_performance_feedback	OFF	controls the performance feedback
_optimizer_proc_rate_level	BASIC	control the level of processing rates
_optimizer_proc_rate_source	DEFAULT	control the source of processing rates
_optimizer_strans_adaptive_pruning	TRUE	allow adaptive pruning of star transformation bitmap trees
_optimizer_unnest_scalar_sq	TRUE	enables unnesting of of scalar subquery
_optimizer_use_gtt_session_stats	TRUE	use GTT session private statistics
_optimizer_use_histograms	TRUE	enable/disable the usage of histograms by the optimizer
_oracle_script	FALSE	Running an Oracle-supplied script
_parallel_blackbox_sga	TRUE	true if blackbox will be allocated in SGA, false if PGA
_parallel_ctas_enabled	TRUE	enable/disable parallel CTAS operation
_parallel_fault_tolerance_threshold	3	total number of faults fault-tolerance will handle
_part_access_version_by_number	TRUE	use version numbers to access versioned objects for partitioning
_part_redef_global_index_update	TRUE	online partition redefinition update global indexes
_partition_advisor_srs_active	TRUE	enables sampling based partitioning validation
_partition_cdb_view_enabled	TRUE	partitioned cdb view evaluation enabled
_pdb_use_sequence_cache	TRUE	Use sequence cache in PDB mode
_pga_limit_check_wait_time	1000000	microseconds to wait for over limit confirmation
_pga_limit_dump_summary	FALSE	dump PGA summary when signalling ORA-4036
_pga_limit_interrupt_smaller	FALSE	whether to interrupt smaller eligible processes
_pga_limit_min_req_size	4194304	bytes of PGA usage below which process will not get ORA-4036
_pga_limit_simulated_physmem_size	0	bytes of physical memory to determine pga_aggregate_limit with
_pga_limit_target_perc	200	default percent of pga_aggregate_target for pga_aggregate_limit
_pga_limit_time_to_interrupt	2	seconds to wait until direct interrupt
_pga_limit_time_until_idle	15	seconds to wait before treating process as idle
_pga_limit_time_until_killed	30	seconds to wait before killing session over limit
_pga_limit_tracing	0	trace pga_aggregate_limit activity
_pga_limit_use_immediate_kill	TRUE	use immediate kill for sessions over limit
_pga_limit_watch_perc	50	percentage of limit to have processes watch
_pga_limit_watch_size	1.05E+08	bytes of PGA usage at which process will begin watching limit
_pin_time_statistics	FALSE	if TRUE collect statistics for how long a current pin is held
_ping_wait_for_log_force	TRUE	Wait for log force before block ping
_pluggable_database_debug	0	Debug flag for pluggable database related operations
_pred_push_cdb_view_enabled	TRUE	predicate pushdown enabled for CDB views
_prefered_standby		standby db_unique_name prefered for krb operations
_print_inmem_heatmap	0	print inmem ilm heatmap
_print_stat_segment	0	print ilm statistics segment
_px_adaptive_dist_method	CHOOSE	determines the behavior of adaptive distribution methods
_px_adaptive_dist_method_threshold	0	Buffering / decision threshold for adaptive distribution methods
_px_adaptive_offload_percentage	30	percentage for PQ adaptive offloading of granules
_px_back_to_parallel	OFF	allow going back to parallel after a serial operation
_px_cdb_view_enabled	TRUE	parallel cdb view evaluation enabled
_px_concurrent	TRUE	enables pq with concurrent execution of serial inputs
_px_cpu_autodop_enabled	TRUE	enables or disables auto dop cpu computation
_px_cpu_operator_bandwidth		CPU operator bandwidth in MB/sec for DOP computation
_px_cpu_process_bandwidth	200	CPU process bandwidth in MB/sec for DOP computation
_px_dp_array_size	32767	Max number of pq processes supported
_px_filter_parallelized	TRUE	enables or disables correlated filter parallelization
_px_filter_skew_handling	TRUE	enable correlated filter parallelization to handle skew
_px_groupby_pushdown	FORCE	perform group-by pushdown for parallel query
_px_hybrid_TSM_HWMB_load	TRUE	Enable Hybrid Temp Segment Merge/High Water Mark Brokered load method
_px_join_skew_handling	TRUE	enables skew handling for parallel joins
_px_join_skew_minfreq	30	sets minimum frequency(%) for skewed value for parallel joins
_px_join_skew_ratio	10	sets skew ratio for parallel joins
_px_load_balancing_policy	UNIFORM	parallel load balancing policy
_px_load_monitor_threshold	10000	threshold for pushing information to load slave workload monitor
_px_message_compression	TRUE	enable compression of control messages for parallel query
_px_monitor_load	FALSE	enable consumer load slave workload monitoring
_px_object_sampling	200	parallel query sampling for base objects (100000 = 100%)
_px_object_sampling_enabled	TRUE	use base object sampling when possible for range distribution
_px_onepass_slave_acquisition	TRUE	enable/disable one pass slave acquisition for parallel execution
_px_parallelize_expression	TRUE	enables or disables expression evaluation parallelization
_px_partial_rollup_pushdown	ADAPTIVE	perform partial rollup pushdown for parallel execution
_px_proactive_slave_alloc_threshold	8	parallel proactive slave allocation threshold/unit
_px_pwmr_enabled	TRUE	parallel partition wise match recognize enabled
_px_replication_enabled	TRUE	enables or disables replication of small table scans
_px_single_server_enabled	TRUE	allow single-slave dfo in parallel query
_px_tq_rowhvs	TRUE	turn on intra-row hash valueing sharing in TQ
_px_wif_dfo_declumping	CHOOSE	NDV-aware DFO clumping of multiple window sorts
_px_wif_extend_distribution_keys	TRUE	extend TQ data redistribution keys for window functions
_px_wif_min_ndv_per_slave	2	mininum NDV of TQ keys needed per slave for scalable WiF PX
_radm_enabled	TRUE	Data Redaction
_re_fast_sql_operator	all	enables fast boxable sql operator
_re_independent_expression_cache_size	20	defines max number of compiled cached expressions for iee
_re_num_complex_operator	1000	defines max number of compiled complex operator per ruleset-iee
_re_num_rowcache_load	2	defines max number of complex operators loaded with row cache
_re_result_cache_keysiz	20	defines max number key for result cache hash table
_re_result_cache_size	20	defines max number of cached elements for result cache
_read_mostly_enable_logon	FALSE	Read mostly instances enable non-privileged logons
_read_mostly_instance	FALSE	indicates this is a read_mostly instance
_read_mostly_instance_qa_control	0	internal parameter to control read mostly instance QA
_read_mostly_slave_timeout	20000	Time to wait on read mostly node when hub not available
_realfree_heap_pagesize	65536	hint for real-free page size in bytes
_realfree_pq_heap_pagesize	65536	hint for pq real-free page size in bytes
_redef_on_statement	FALSE	Use on-statement refresh in online redefinition
_redo_log_debug_config	0	Various configuration flags for debugging redo logs
_redo_log_record_life	168	Life time in hours for redo log table records
_region_name		gsm region name
_relocate_pdb	FALSE	Relocate PDB to another RAC instance after it is closed in the current instance
_remote_asm		remote ASM configuration
_remote_awr_enabled	FALSE	Enable/disable Remote AWR Mode
_remove_exf_component	TRUE	enable/disable removing of components EXF and RUL during upgrade
_report_capture_cycle_time	60	Time (in sec) between two cycles of report capture daemon
_report_capture_dbtime_percent_cutoff	50	100X Percent of system db time daemon is allowed over 10 cycles
_report_capture_recharge_window	10	No of report capture cycles after which db time is recharged
_report_capture_timeband_length	1	Length of time band (in hours) in the reports time bands table
_report_request_ageout_minutes	60	Time (in min) after which a report request is deleted from queue
_resource_includes_unlimited_tablespace	FALSE	Whether RESOURCE role includes UNLIMITED TABLESPACE privilege
_result_cache_deterministic_plsql	FALSE	result cache deterministic PLSQL functions
_resumable_critical_alert	0	raise critical alert for resumable failure
_rman_roundrobin_placement		Numa round robin placement for RMAN procs
_rond_test_mode	0	rac one node test mode
_rowlen_for_chaining_threshold	1000	maximum rowlen above which rows may be chained across blocks
_rowsets_cdb_view_enabled	TRUE	rowsets enabled for CDB views
_rowsets_enabled	TRUE	enable/disable rowsets
_rowsets_max_rows	200	maximum number of rows in a rowset
_rowsets_target_maxsize	524288	target size in bytes for space reserved in the frame for a rowset
_rtaddm_trigger_args		comma-separated list of numeric arguments for RT addm trigger
_rtaddm_trigger_enabled	TRUE	To enable or disable Real-Time ADDM automatic trigger
_scalar_type_lob_storage_threshold	4000	threshold for VARCHAR2, NVARCHAR2, and RAW storage as BLOB
_securefile_log_num_latches	0	Maximum number of open descriptors for securefile log
_securefile_log_shared_pool_size	0	Size of securefile log buffer pool from SGA
_securefiles_breakreten_retry	5	segment retry before dishonoring retention
_securefiles_spcutl	FALSE	securefiles segment utl optimization
_serial_log_write_worker_io	FALSE	Serialize log write slave I/O
_set_container_service	DEFAULT	set container service
_sf_default_enabled	TRUE	enable 12g securefile default
_sga_alloc_slaves_term_timeout_secs	120	Termination timeout in secs for SA** slaves
_shrd_que_tm_processes	1	number of sharded queue Time Managers to start
_shrd_que_tm_statistics_duration	0	Shaded queue statistics collection window duration
_simulated_log_write_usecs	0	Simulated latency of log writes (usecs)
_skgxp_ant_options		SKGXP ANT options (oss)
_skip_acfs_checks	FALSE	Override checking if on an ACFS file system
_smm_max_size_static	92160	static maximum work area size in auto mode (serial)
_smm_px_max_size_static	230400	static maximum work area size in auto mode (global)
_snapshot_recovery_enabled	TRUE	enable/disable snapshot recovery
_sort_sync_min_spill_threshold	90	controls the mininum spill size for synchronized spill (in percent)
_sort_sync_min_spillsize	262144	controls the size of mininum run size for synchronized spill (in kb)
_sql_diag_repo_origin	all	duarations where sql diag repository are retained
_sql_diag_repo_retain		retain sql diag repository to cursor or not
_sql_hvshare_debug	1	control hash value sharing debug level
_sql_hvshare_threshold	0	threshold to control hash value sharing across operators
_sql_plan_directive_mgmt_control	3	controls internal SQL Plan Directive management activities
_sql_show_expreval	FALSE	show expression evalution as shared hash producer in plan
_stat_aggs_one_pass_algorithm	FALSE	enable one pass algorithm for variance-related functions
_suppress_identifiers_on_dupkey	FALSE	supress owner index name err msg
_switch_current_scan_scn	TRUE	switch current uses scan scn
_switchover_timeout	0	Switchover timeout in minutes
_sys_logon_delay	1	failed logon delay for sys
_target_log_write_size	0	Do log write if this many redo blocks in buffer (auto=0)
_target_log_write_size_timeout	1	How long LGWR will wait for redo to accumulate (csecs)
_temp_undo_disable_adg	FALSE	is temp undo disabled on ADG
_test_hm_extent_map	FALSE	heatmap related �C to be used by oracle dev only
_test_param_7		test parameter 7 �C big integer list
_test_param_8	20	test parameter 8 �C cdb tests
_thread_state_change_timeout_pnp	1800	Thread state change timeout for PnP instance (in sec)
_time_based_rcv_ckpt_target	0	time-based incremental recovery checkpoint target in sec
_time_based_rcv_hdr_update_interval	0	time-based incremental recovery file header update interval in sec
_trace_ktfs	FALSE	Trace ILM Stats Tracking
_trace_ktfs_mem	FALSE	Debug memleak
_trace_temp	FALSE	Trace Tempspace Management
_track_metrics_memory	TRUE	Enable/disable Metrics Memory Tracking
_tsenc_obfuscate_key	BOTH	Encryption key obfuscation in memory
_twenty-eighth_spare_parameter	FALSE	twenty-eighth spare parameter �C boolean
_twenty-fifth_spare_parameter		twenty-fifth spare parameter �C string list
_twenty-first_spare_parameter		twenty-first spare parameter �C string list
_twenty-fourth_spare_parameter		twenty-fourth spare parameter �C string list
_twenty-second_spare_parameter		twenty-second spare parameter �C string list
_twenty-seventh_spare_parameter	FALSE	twenty-seventh spare parameter �C boolean
_twenty-sixth_spare_parameter	FALSE	twenty-sixth spare parameter �C boolean
_twenty-third_spare_parameter		twenty-third spare parameter �C string list
_txn_control_trace_buf_size	4096	size the in-memory buffer size of txn control
_unified_audit_flush_interval	3	Unified Audit SGA Queue Flush Interval
_unified_audit_flush_threshold	85	Unified Audit SGA Queue Flush Threshold
_unified_audit_policy_disabled	FALSE	Disable Default Unified Audit Policies on DB Create
_upddel_dba_hash_mask_bits	0	controls masking of lower order bits in DBA
_use_fips_mode	FALSE	Enable use of crypographic libraries in FIPS mode
_use_hidden_partitions	FALSE	use hidden partitions
_use_single_log_writer	ADAPTIVE	Use a single process for redo log writing
_utlmmig_table_stats_gathering	TRUE	enable/disable utlmmig table stats gathering at upgrade
_uts_first_segment_retain	TRUE	Should we retain the first trace segment
_uts_first_segment_size	0	Maximum size (in bytes) of first segments
_uts_trace_disk_threshold	0	Trace disk threshold parameter
_uts_trace_segment_size	0	Maximum size (in bytes) of a trace segment
_uts_trace_segments	5	Maximum number of trace segments
_validate_metric_groups	FALSE	Enable/disable SGA Metric Structure validation
_wcr_grv_cache_size	65535	Oracle internal: Set the replay cache size for WRR$_REPLAY_DATA.
_wcr_seq_cache_size	65535	Oracle internal: Set the replay cache size for WRR$_REPLAY_SEQ_DATA.
_widetab_comp_enabled	TRUE	wide table compression enabled
_xa_internal_retries	600	number of internal retries for xa transactions
_xds_max_child_cursors	100	Maximum number of XDS user-specific child cursors
_xs_cleanup_task	TRUE	Triton Session Cleanup
_xs_dispatcher_only	FALSE	XS dispatcher only mode
_zonemap_control	0	control different uses/algorithms related to zonemaps
_zonemap_staleness_tracking	1	control the staleness tracking of zonemaps via trigger
_zonemap_use_enabled	TRUE	enable the use of zonemaps for IO pruning
cell_offloadgroup_name		Set the offload group name
connection_brokers	((TYPE=DEDICATED)(BROKERS=1)), ((TYPE=EMON)(BROKERS=1))	connection brokers specification
db_big_table_cache_percent_target	0	Big table cache target size in percentage
db_index_compression_inheritance	NONE	options for table or tablespace level compression inheritance
dnfs_batch_size	4096	Max number of dNFS asynch I/O requests queued per session
enable_pluggable_database	TRUE	Enable Pluggable Database
heat_map	OFF	ILM Heatmap Tracking
max_string_size	STANDARD	controls maximum size of VARCHAR2, NVARCHAR2, and RAW types in SQL
noncdb_compatible	FALSE	Non-CDB Compatible
optimizer_adaptive_features	TRUE	controls adaptive features
optimizer_adaptive_reporting_only	FALSE	use reporting-only mode for adaptive optimizations
parallel_degree_level	100	adjust the computed degree in percentage
parallel_fault_tolerance_enabled	FALSE	enables or disables fault-tolerance for parallel statement
pdb_file_name_convert		PDB file name convert patterns and strings for create cdb/pdb
pga_aggregate_limit	2.15E+09	limit of aggregate PGA memory consumed by the instance
spatial_vector_acceleration	FALSE	enable spatial vector acceleration
temp_undo_enabled	FALSE	is temporary undo enabled
threaded_execution	FALSE	Threaded Execution Mode
unified_audit_sga_queue_size	1048576	Size of Unified audit SGA Queue
use_dedicated_broker	FALSE	Use dedicated connection broker