存储过程往拼接的sql语句中传递日期值

存储过程往拼接的sql语句中传递日期值

  declare @start datetime
    declare @end datetime
    set @start='2014-3-1'
     set @end='2014-3-31'
      declare @sql Nvarchar(4000)
      set @sql='
     select * from search_record
                         where (Name!='' or Phone!='')
           and (thedate between @st  and @en  )'

 exec sp_executesql @sql,N'@st datetime,@en datetime',@start,@end