sqlserver如何比较两个日期（datetime）的年月大小，比较到年月，不比较日

select * from xxxx where datediff(m,dt1,dt2)

创新互联建站是专业的亭湖网站建设公司，亭湖接单;提供做网站、成都网站设计,网页设计,网站设计,建网站,PHP网站建设等专业做网站服务;采用PHP框架,可快速的进行亭湖网站开发网页制作和功能扩展;专业做搜索引擎喜爱的网站,专业的做网站团队,希望更多企业前来合作!

datediff:日期比较函数,SQL server自带的,会将比较的两个日期比较部分的差值返回,m表示比较月

SQLServer两个值比较的问题

SET @COUNTA= len(replace(@ROW,',',',,'))-len(@ROW)

SET @COUNTB=LEN(REPLACE(@VALUES,',',',,'))-LEN(@VALUES)

IF(@COUNTA@COUNTB)

SqlServer怎么比较两个表的字段是否一致

--2个表比较

DECLARE @SourceTableName VARCHAR(100)

DECLARE @DestTableName VARCHAR(100)

SET @SourceTableName = 'TableA'

SET @DestTableName = 'TableB'

SELECT A.TABLE_NAME AS SourceTable

,A.COLUMN_NAME AS SourceColumn

,A.DATA_TYPE AS SourceType

,B.TABLE_NAME AS DestTable

,B.COLUMN_NAME AS DestColumn

,B.DATA_TYPE AS DestType

FROM (SELECT * FROM INFORMATION_SCHEMA.COLUMNS WHERE TABLE_NAME = @SourceTableName) A

FULL OUTER JOIN (SELECT * FROM INFORMATION_SCHEMA.COLUMNS WHERE TABLE_NAME = @DestTableName) B

ON A.COLUMN_NAME = B.COLUMN_NAME AND A.DATA_TYPE = B.DATA_TYPE

WHERE A.TABLE_NAME IS NULL OR B.TABLE_NAME IS NULL

文章题目：sqlserver比对,sql 对比
文章源于：http://azwzsj.com/article/dsipjhi.html