Of course, sometimes the date itself is not enough. Or it’s not exactly what you need. You might want to get thetime— or thetime and the datecombined. To get thecurrent timeinhours:minutes:secondsformat (e.g.15:43:01) in SQL, you’ll have to run this function: SELECT current_t...
age(timestamp) interval 从current_date减去得到的数值 age(timestamp '1957-06-13') 43 years 8 mons 3 days current_date date 今天的日期 current_time time 现在的时间 current_timestamp timestamp 日期和时间 date_part(text, timestamp) double 获取子域(等效于extract) date_part('hour', timest...
jobname,jobdesc,jobhostagent,jobenabled)VALUES(1::integer,'query_current_time'::text,'定时查询当前时间'::text,''::text,true)RETURNINGjobidINTOjid;-- Steps-- Inserting a step (jobid: NULL)INSERTINTOpgagent.pga_jobstep(jstjobid,jstname,jstenabled,jstkind,jstconnstr,jstdbname...
pgv_get_int---10000000(1row) Time:0.470ms postgres=#select10000000/4.185; ?column?---2389486.260454002389(1row) Time:0.869ms 集合测试 postgres=#selectpgv_insert('pkg2','k1', row(1::int,'hello world'::text,current_date::date)); pgv_insert---(1row) postgres=#select*frompgv_select('p...
In PostgreSQL, comparison operators like greater than “>” and greater than or equal to “>=” can be used with the “CURRENT_DATE” function to get a date greater than or equal to today. Some other built-in date functions likeNOW(),CURRENT_TIMESTAMP, andLOCALTIMESTAMPcan also be used...
For example, the following SQL command shows the current date and time: SELECTCURRENT_TIMESTAMP; Delete the EC2 instance and DB instance After you connect to and explore the sample EC2 instance and DB instance that you created, delete them so you're no longer charged for them. ...
modify_date timestamp NULL, CONSTRAINT user_camera_version_pkey PRIMARY KEY (id) ) WITH ( OIDS=FALSE ) ; ## 函数相关 1)查看所有用户自定义函数。 \df 或 SELECT n.nspname as "Schema", p.proname as "Name", pg_catalog.pg_get_function_result(p.oid) as "Result data type", ...
我正在尝试将postgresql查询转换为ms sql查询。这就是我在postgresqlround(cast((Current_Date - emp.hiredate) As Decimal)/365,1)中的内容round(cast((GetDate() - emp.hiredate) as decimal) / 365, 1)减法运算符中的数据类型日期、时间和日期不 ...
但需要注意的是,此种方式由于比较直接,不管是否数据库有无IO情况,因此,备份的时候需要先停止数据库,恢复的时候要删除原数据库文件,重新覆盖回去后,才可以在启动数据库,如果在数据库启动的时候备份,那么,可能会造成数据备份不全,也可以理解为冷备方式。
To get a month name from a date, specify the date/timestamp as the first and “MONTH” as the second argument to the TO_CHAR() function.