SQL Server 2014的Eomonth函数

Question

I am getting an error on this function, even it is defined. What could cause this problem?

Answer 1

EOMONTH() was introduced in SQL Server 2012.

I suspect the Compatibilty level of your database is set below that (or you are in fact not on SQL Server 2014).

ALTER DATABASE database_name   
SET COMPATIBILITY_LEVEL = 120   -- 120 == SQL Server 2014

To determine your SQL Server version run:

SELECT @@VERSION

An alternative way of calculating EOMONTH is:

DATEADD(d, -1, DATEADD(m, DATEDIFF(m, 0, @Date) + 1, 0))

Answer 2

EOMONTH() returns a date type

REPLACE ( string_expression , string_pattern , string_replacement )

REPLACE ( EOMONTH( cast(@variable as date) )  '-','.')

You are attempting an implicit conversion from date to string, and it seems you are assuming that a date data type actually contains a dash, which isn't true. Just use format to the desired output. No need for replace and use a set of DATEADD() functions to substitute for EOMONTH()

select format(dateadd(day,-1,dateadd(month, datediff(month,0, getDate()), 0)),'yyyy.MM.dd')