current_timetime with time zone当前时间select current_time;15:15:56.394651-07 current_timestamptimestamp with time zone当前时间戳select current_timestamp;2016-07-08 15:16:50.485864-07 date_part(text,timestamp)double precision获取时间戳中的某个子域,其中text可以为year,month,day,hour,minute,second等...
current_timetime with time zone当前时间select current_time;15:15:56.394651-07 current_timestamptimestamp with time zone当前时间戳select current_timestamp;2016-07-08 15:16:50.485864-07 date_part(text,timestamp)double precision获取时间戳中的某个子域,其中text可以为year,month,day,hour,minute,second等...
是一个 timestamp without time zone,而 TIMESTAMP '2021-03-06 18:02:00 +08' 1. 是一个 timestamp with time zone。 +08:表示 时区与全球统一时间 UTC 偏移量为 8 小时 AT TIME ZONE 构造允许把时间戳转换成不同的时区与timezone(zone,timestamp) 函数等效 SELECT current_timestamp AT TIME ZONE '...
三、PostgreSQL辅助脚本1.批量修改timestamptz脚本批量修改表字段类型 timestamptz 为 timestamp， 因为我们说过前者无法与LocalDateTime对应上ps：timestamp without time zone 就是 timestamptimestamp with time zone 就是 timestamptzDO $$DECLARErec RECORD;BEGINFOR rec IN SELECT table_name, column_name,data_t...
A new record without a time zone information has been inserted into the “emp_joining_date” column. Example 3: Inserting DateTime Values Via Different Built-in Functions In Postgres, the functions likeNOW(),CURRENT_TIMESTAMP,TRANSACTION_TIMESTAMP(), etc., retrieve the current date and time wi...
clock_timestamp()timestamp with time zone当前时间戳(语句执行时变化)select clock_timestamp();2016-07-08 15:14:04.197732-07 current_datedate当前日期select current_date;2016-07-08 current_timetime with time zone当前时间select current_time;15:15:56.394651-07 ...
PostgreQL 提供了大量用于获取系统当前日期和时间的函数,例如 current_date、current_time、current_timestamp、clock_timestamp()、localtimestamp、now()、statement_timestamp() 等;同时还支持延迟语句执行的 pg_sleep() 等函数。 时区转换 AT TIME ZONE 运算符用于将 timestamp without time zone、timestamp with...
current_date→ date当前日期 current_date→ 2019-12-23 current_time→ time with time zone一天中的当前时间 current_time→ 14:39:53.662522-05 current_time ( integer ) → time with time zone 一天中的当前时间;有限精度 current_time(2)→ 14:39:53.66-05 current_timestamp→ timestamp with time ...
PostgreSQL 9.3 /PostgreSQL9.3-1100-jdbc41.jar 我有一个具有timestamp without time zone类型列的表,这将生成具有适用的java.util.Timestamp在插入期间,我看到的是jOOQ的绑定过程,它将java.util.Timestamp转换为带有本地时区偏移的日期。对于unix时间戳14211094 浏览4提问于2015-01-13得票数 3 回答已采纳 ...
To get the current time without a date, you use the CURRENT_TIME function: SELECT CURRENT_TIME; Output: current_time --- 21:02:13.648512-05 (1 row) Note that both CURRENT_TIMESTAMP and CURRENT_TIME return the current time with the time zone. To get the time of day in the string...