sql 存储过程 - 根据条件执行不同的SQL语句

Posted 2021-05-13

CREATE PROC [dbo].[GetUserByCondition]
        @username varchar(100),
        @orderfield  varchar(100)
     
         AS
                BEGIN
                    DECLARE @sqlfilter  VARCHAR(max)
                    SET @sqlfilter = 'select * from hrmresource where 1=1 '
                    IF(@username is not null)
                              SET @sqlfilter = @sqlfilter + '   and lastname like  ''%' +@username+ '%'' '
                    IF(@orderfield is not null)
                              SET @sqlfilter =  @sqlfilter +  '  order  by ' + @orderfield + ' desc' 
            
                            PRINT ( @sqlfilter)
                            EXEC (@sqlfilter)

                END
GO

exec GetUserByCondition '杨','workcode'