Return the month part of a date: SELECTMONTH('2017/08/25')ASMonth; Try it Yourself » Definition and Usage The MONTH() function returns the month part for a specified date (a number from 1 to 12). Syntax MONTH(date) Parameter Values ...
(0.00 sec) mysql> select case null when '' then true when 0 then false else '=)' end; +---+ | case null when '' then true when 0 then false else '=)' end | +---+ | =) | +---
case month when '2024-01' then sales end的意思是当month的值为'2024-01'时取sales的值,其他情况取NULL,因此可以计算出不同月份的销量 selectproduct ,max(casemonthwhen'2024-01'thensalesend)asmonth_01 ,max(casemonthwhen'2024-02'thensalesend)asmonth_02 ,max(casemonthwhen'2024-03'thensalesend)as...
Now, to find the last day of the prior month, we want to get to the first day of the current month, and then go back one more day. This logic is a little simpler, since we start with the current date and subtract the current day value (which would result in the day zero of the...
驱动程序从SQLEndTran返回SQL_ERROR。 驱动程序是 ODBC 版本 3.8 或更高版本。 应用程序版本为 3.8 或更高版本;或重新编译的 ODBC 2.x 或 3.x 应用程序通过SQLCancelHandle成功取消SQLEndTran函数。 驱动程序未返回以下消息之一,该消息确认事务未完成: ...
The driver returns SQL_ERROR from SQLEndTran. The driver is ODBC version 3.8, or later. The application version is 3.8 or later; or the recompiled ODBC 2.x or 3.x application successfully cancels the SQLEndTran function through SQLCancelHandle. The driver did not return one of the followin...
In my opinion, I’ve found the EOMONTH(), “end of month”, function to be one of the most useful. The EOMONTH() function returns the final day of the calendar month, thus greatly simplifying a common calculation, taking into account differing number of days in each month, the leap ...
For more information about what the Driver Manager maps this function to when an ODBC 3.x application is working with an ODBC 2.x driver, see Mapping Replacement Functions for Backward Compatibility of Applications. Syntax C++ Copy SQLRETURN SQLEndTran( SQLSMALLINT HandleType, SQLHANDLE Handle...
9)MDY(MONTH,DAY,YEAR) 返回标识指定年、月、日的日期值 10)DATETIME(DATE/DATETIME EXPRESSION)FIRST TO LAST 返回表达式代表的日期时间值 11)INTERVAL(DATE/DATETIME EXPRESSION)FIRST TO LAST 返回表达式代表的时间间隔值 12)EXTEND(DATE/DATETIME EXPRESSION,[FIRST TO ...
END Get_WorkingDays; ___ 还有一个版本 CREATE OR REPLACE FUNCTION Get_WorkingDays( ny IN VARCHAR2 ) RETURN INTEGER IS Result INTEGER := 0; myts INTEGER; --所给年月的天数 scts INTEGER; --某天距2001-12-30所差的天数 rq DATE; djt INTEGER := 1; -- BEGIN myts := ...