selectdate'2018-01-12'+interval'7'-- 2018-01-12 00:00:07select"activatedAt"-"createdAt"AS"diff"from"Members"whereid='373'-- 19 days 09:07:11.155 2、函数# 常用:extract / date_part 和 date_trunc 函数# Copy 1、extract/date_partselectdate_part('hour',timestamp'2001-02-16 20:38:40...
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The ADD_MONTHS functions adds or subtracts the specified number of months to or from the given date. Use a negative value to subtract. The resulting day of the month is the same as the day of the month of the given date except when the day is the last day o...
.) Added 3 more variants to accompany with date_add(tstz, interval, zone). date_add(tstz, interval) date_subtract(tstz, interval) date_subtract(tstz, interval, zone) .) Eliminate duplication of code; use common function to implement generate_series_timestamptz[_at_zone]() functions. ....
.asselecttable_namefrominformation_schema.='BASE_TABLE' 三、orafce包含的内容 类型date, varchar2 and nvarchar2 函数concat, nvl, nvl2, lnnvl, decode, bitand, nanvl, sinh, cosh, tanh and oracle.substr dual 表 package : dbms_alert dbms_assert ...