(1) 查询 current_timestamp : select current_timestamp 可以看到current_timestamp 返回的是带时区(+08)时间类型,精度为643549。 (2) 去掉精度 (3) 去掉时区 另一种写法: (4) 用case()函数进行类型转换。 Select cast(current_timestamp(0) as timestamp without time zone) (5) 对精度进行对比可以看到...
BEGIN2594732table public.users: INSERT: user_id[integer]:5user_name[character varying]:'data5'gender[integer]:nullsalary[numeric]:nulldept_id[integer]:nullcreate_date[timestamp withouttimezone]:nullupdate_date[timestamp withouttimezone]:'2022-04-10 08:30:42.870449'COMMIT2594732 首先看lightdb日志,...
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 ...
You are now connected to database"keepalived"asuser"keepalived".keepalived=>create tablesr_delay(id int4,last_alivetimestamp(0)without time zone);CREATETABLE 表sr_delay只允许写入一条记录,并且不允许删除此表数据,通过触发器实现。创建触发器函数,如下所示: 代码语言:javascript 代码运行次数:0 运行 AI...
\gdesc describe result of query, without executing it \gexec execute query, then execute each value in its result \gset [PREFIX] execute query and store results in psql variables \gx [(OPTIONS)] [FILE] as \g, but forces expanded output mode ...
事务时间 transaction_timestamp() now() 语句时间 statement_timestamp() clock_timestamp() timeofday() 获取当前事务时间或日期 CURRENT_DATE 带时区 CURRENT_TIME CURRENT_TIMESTAMP CURRENT_TIME(precision) CURRENT_TIMESTAMP(precision) 不带时区 LOCALTIME LOCALTIMESTAMP LOCALTIME(precision) LOCALTIMESTAMP(pr...
postgres=# EXPLAIN ANALYZE INSERT INTO t_user postgres-# SELECT generate_series ( 1, 10000000 ), postgres-# substr( 'abcdefghijklmnopqrstuvwxyz', 1, ( random( ) * 26 ) :: INTEGER ), postgres-# lpad( ( random( ) * 138 ) :: INT :: TEXT, 11, '0' ), postgres-# DATE ( genera...
db_sr_delaytime=`echo $SQL2 | psql -p $PGPORT -d $PGDBNAME -U $PGUSER -At -w` SWITCH_COMMAND='pg_ctl promote -D /data/pg_data/' # 如果为备库,且延迟大于指定时间则切换为主库if [ ${db_role} == 'f' ];then echo -e `date +"%F %T"` "Attention:The current postgreSQL ...
@Query( value = "select " + " t.* " + "from test t " + "where " + " cast(cast(:endDate as text) as timestamp) is null or t.created_at <= cast(cast(:endDate as text) as timestamp)", nativeQuery = true ) fun test(@Param("endDate") endDate: LocalDateTime?): List<Te...
所有下文描述的接受time或timestamp输入的函数和操作符实际上都有两种变体: 一种接收time with time zone或timestamp with time zone, 另外一种接受time without time zone或者 timestamp without time zone。为了简化,这些变种没有被独立地展示。此外,+和*操作符都是可交换的操作符对(例如,date + integer 和 int...