vb.net – 计算列规范
发布时间:2020-12-17 07:14:03 所属栏目:百科 来源:网络整理
导读:CREATE TABLE PaperTable( PaperID int IDENTITY (1,1) NOT NULL,PageNumber varchar(100),PaperAlphaID AS Cast(Right(Year(getDate()),2) as varchar(2)) +'-'+ PageNumber); 当我添加“001”和“002”作为我的纸号时,我得到了结果: PaperID PageNumber P
CREATE TABLE PaperTable ( PaperID int IDENTITY (1,1) NOT NULL,PageNumber varchar(100),PaperAlphaID AS Cast(Right(Year(getDate()),2) as varchar(2)) +'-'+ PageNumber ); 当我添加“001”和“002”作为我的纸号时,我得到了结果: PaperID PageNumber PaperAlphaID ------- ---------- ------------ 1 001 15-001 2 002 15-002 但我想在PaperAlphaID中全年展示 PaperID PageNumber PaperAlphaID ------- ---------- ------------ 1 001 2015-001 2 002 2015-002 而不是15-001和15-002 解决方法
删除RIGHT函数并更新varchar(4)
CREATE TABLE PaperTable ( PaperID int IDENTITY (1,PaperAlphaID AS Cast(Year(getDate())) as varchar(4)) +'-'+ PageNumber ); (编辑:李大同) 【声明】本站内容均来自网络,其相关言论仅代表作者个人观点,不代表本站立场。若无意侵犯到您的权利,请及时与联系站长删除相关内容! |