--导出表的结构:
select export_objects('','app_z.test')
--收集统计信息
select analyze_statistics('app_z.test')
--重置license_size
select audit_license_size()
--查看license
select get-compliance_status()
--查看表的大小
select anchor_table_schema,
anchor_table_name,
sum(used_bytes) / ( 1024^3 ) as used_compressed_gb
from v_monitor.projection_storage
where anchor_table_schema = 'app_z'
group by anchor_table_schema, anchor_table_name
order by sum(used_bytes) desc;
--把一个schema上的权限赋给另一个用户
grant usage on schema dbname_dw to dev_test;
--把某个表的操作权限赋值给另一个用户
grant 权限名(all,select update,insert,delete) on 表名 to 用户名
--清表
truncate table tablename;
alter table app.test rename new_name to old_name;
select * from v_catalog.columns where table_name like upper('%mon%')
--登录
vsql -h 111.111.111.111 -d database -U user -w password -e -i -C ;
--导入数据
copy app_z.ofr_prom_part from local 'c:/users/dell/desktop/type_in.csv' delimiter '分割符' direct exceptions 'c:/users/dell/desktop/日志文件名.log' ;
--导出数据
vsql -h IP -d DATABASES -U USER -w PASSWORD -F "," -At -o C:\Users\dell\Desktop\a.csv -c "(SELECT * FROM TABLE) ;"
或者:
@export on;
@export set Encoding="GBK" Filename="C:\Users\Administrator\Desktop\aa.csv" format="CSV" DecimalNumberFormat="00000000000" CsvColumnDelimiter=","CsvRowDelimiter="\r\n" CsvIncludeColumnHeader="true" ;
SELECT * FROM TABLE where bil_month = '201903';
创建临表
CREATE LOCAL TEMPORARY TABLE OFR_ASSET_PROM_N_HIST_${LocalCode}
ON COMMIT PRESERVE ROWS
AS ( SELECT *
FROM TABLE
) ORDER BY ASSET_ROW_ID
SEGMENTED BY HASH (ASSET_ROW_ID) ALL NODES KSAFE 0 ;
创建物理表
CREATE TABLE IF NOT EXISTS tablename
( ID INT,
NAME VARCHAR(50),
DATE_CD DATE,
STATURE DECIMAL(18,2),
ACCS_NBR CHAR(11)
) DIRECT -- 直接到物理层 分段存储
ORDER BY ID
SEGMENTED BY HASH(ID) ALL NODES KSAFE 1;
-- 周
select cast((timestamp '2005-01-17 10:00' - timestamp '2005-01-01') day as integer) / 7;
--求两点的时间间隔
Select
timestampdiff (256, char(timestamp('2013-12-30 20:30:30') - timestamp('2001-09-26 15:24:23'))) AS "间隔年",
timestampdiff (128, char(timestamp('2013-12-30 20:30:30') - timestamp('2001-09-26 15:24:23'))) AS "间隔季度",
timestampdiff (64, char(timestamp(current date) - timestamp('2017-11-14 15:24:23'))) AS "间隔月",
timestampdiff (32, char(timestamp('2013-12-30 20:30:30') - timestamp('2001-09-26 15:24:23'))) AS "间隔周",
timestampdiff (16, char(timestamp('2013-12-30 20:30:30') - timestamp('2001-09-26 15:24:23'))) AS "间隔日",
timestampdiff (8, char(timestamp('2013-12-30 20:30:30') - timestamp('2001-09-26 15:24:23'))) AS "间隔时",
timestampdiff (4, char(timestamp('2013-12-30 20:30:30') - timestamp('2001-09-26 15:24:23'))) AS "间隔分",
timestampdiff (2, char(timestamp('2013-12-30 20:30:30') - timestamp('2001-09-26 15:24:23'))) AS "间隔秒"
FROM SYSIBM.SYSDUMMY1;
--查询字段在哪个表中出现
select * from v_catalog.columns where column_name = 'MKT_CHANNEL_LVL3_NAME';
select date_part('doy',sysdate) -- 当天是当年的第几天, doy即 day of year
select date_part('dow',sysdate) -- 当天是当周中的第几天, dow 即 day of week
select date_part('month', sysdate) -- 当天的月份