sql server 2005的一些动态函数

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sql server 2005的一些动态函数 
所有对象：
SELECT name, object_id, principal_id, schema_id, parent_object_id, type, type_desc, 
      create_date, modify_date, is_ms_shipped, is_published, is_schema_published
FROM sys.all_objects
ORDER BY name
索引对象：
SELECT object_id, name, index_id, type, type_desc, is_unique, data_space_id, 
      ignore_dup_key, is_primary_key, is_unique_constraint, fill_factor, is_padded, 
      is_disabled, is_hypothetical, allow_row_locks, allow_page_locks
FROM sys.indexes
索引使用情况：
SELECT database_id, object_id, index_id, user_seeks, user_scans, user_lookups, 
      user_updates, last_user_seek, last_user_scan, last_user_lookup, last_user_update, 
      system_seeks, system_scans, system_lookups, system_updates, 
      last_system_seek, last_system_scan, last_system_lookup, 
      last_system_update
FROM sys.dm_db_index_usage_stats
WHERE (database_id = DB_ID('taobao') )
某数据库下索引使用情况：
SELECT a.database_id, a.object_id, a.index_id, b.name, a.user_seeks, a.user_scans, 
      a.user_lookups, a.user_updates, a.last_user_seek, a.last_user_scan, 
      a.last_user_lookup, a.last_user_update, a.system_seeks, a.system_scans, 
      a.system_lookups, a.system_updates, a.last_system_seek, a.last_system_scan, 
      a.last_system_lookup, a.last_system_update
FROM sys.dm_db_index_usage_stats AS a INNER JOIN
      sys.indexes AS b ON a.object_id = b.object_id
WHERE (a.database_id = DB_ID('taobao'))
事务锁使用情况：
SELECT resource_type, resource_subtype, resource_database_id, resource_description, 
      resource_associated_entity_id, resource_lock_partition, request_mode, request_type, 
      request_status, request_reference_count, request_lifetime, request_session_id, 
      request_exec_context_id, request_request_id, request_owner_type, 
      request_owner_id, request_owner_guid, request_owner_lockspace_id, 
      lock_owner_address
FROM sys.dm_tran_locks
WHERE (resource_database_id = DB_ID('taobao'))
存储过程使用次数：
SELECT usecounts, text, dbid, objectid FROM
   sys.dm_exec_cached_plans cp
   CROSS APPLY sys.dm_exec_sql_text(cp.plan_handle)
WHERE objtype = 'Proc' and dbid=db_id('taobao'); 
数据库所有会话情况：
SELECT session_id, login_time, host_name, program_name, host_process_id, 
      client_version, client_interface_name, security_id, login_name, nt_domain, 
      nt_user_name, status, context_info, cpu_time, memory_usage, total_scheduled_time, 
      total_elapsed_time, endpoint_id, last_request_start_time, last_request_end_time, 
      reads, writes, logical_reads, is_user_process, text_size, language, date_format, 
      date_first, quoted_identifier, arithabort, ansi_null_dflt_on, ansi_defaults, 
      ansi_warnings, ansi_padding, ansi_nulls, concat_null_yields_null, 
      transaction_isolation_level, lock_timeout, deadlock_priority, row_count, prev_error, 
      original_security_id, original_login_name, last_successful_logon, 
      last_unsuccessful_logon, unsuccessful_logons
FROM sys.dm_exec_sessions
所有请求情况：
SELECT session_id, request_id, start_time, status, command, sql_handle, 
      statement_start_offset, statement_end_offset, plan_handle, database_id, user_id, 
      connection_id, blocking_session_id, wait_type, wait_time, last_wait_type, 
      wait_resource, open_transaction_count, open_resultset_count, transaction_id, 
      context_info, percent_complete, estimated_completion_time, cpu_time, 
      total_elapsed_time, scheduler_id, task_address, reads, writes, logical_reads, 
      text_size, language, date_format, date_first, quoted_identifier, arithabort, 
      ansi_null_dflt_on, ansi_defaults, ansi_warnings, ansi_padding, ansi_nulls, 
      concat_null_yields_null, transaction_isolation_level, lock_timeout, deadlock_priority, 
      row_count, prev_error, nest_level, granted_query_memory, 
      executing_managed_code
FROM sys.dm_exec_requests
所有连接情况：
SELECT session_id, most_recent_session_id, connect_time, net_transport, protocol_type, 
      protocol_version, endpoint_id, encrypt_option, auth_scheme, node_affinity, 
      num_reads, num_writes, last_read, last_write, net_packet_size, client_net_address, 
      client_tcp_port, local_net_address, local_tcp_port, connection_id, 
      parent_connection_id, most_recent_sql_handle
FROM sys.dm_exec_connections
所有查询情况：
SELECT sql_handle, statement_start_offset, statement_end_offset, plan_generation_num, 
      plan_handle, creation_time, last_execution_time, execution_count, total_worker_time, 
      last_worker_time, min_worker_time, max_worker_time, total_physical_reads, 
      last_physical_reads, min_physical_reads, max_physical_reads, total_logical_writes, 
      last_logical_writes, min_logical_writes, max_logical_writes, total_logical_reads, 
      last_logical_reads, min_logical_reads, max_logical_reads, total_clr_time, 
      last_clr_time, min_clr_time, max_clr_time, total_elapsed_time, last_elapsed_time, 
      min_elapsed_time, max_elapsed_time
FROM sys.dm_exec_query_stats
性能统计：
SELECT object_name, counter_name, instance_name, cntr_value, cntr_type
FROM sys.dm_os_performance_counters

原文地址: http://www.cnblogs.com/quange/archive/2009/05/18/1459272.html