SELECT u_sys_post.postid ,u_sys_post.scid ,u_sys_post.deptid ,u_sys_post.empid ,u_sys_post.sdate ,u_sys_post.edate ,u_sys_post.dscrp ,u_sys_post.opemp ,u_sys_post.opdate ,u_sys_post.level ,u_sys_post.type ,CASE WHEN u_sys_post.empid = -1 THEN '全部用户' ELSE u_user_jlhprice.username END AS username FROM u_sys_post LEFT OUTER JOIN u_user_jlhprice ON u_sys_post.empid = u_user_jlhprice.empid u_sys_post.type = @type u_sys_post.empid = -1 OR @empid = 0 OR u_sys_post.empid = @empid getdate() >= u_sys_post.sdate AND getdate() <= u_sys_post.edate opdate DESC