动态为表添加存储时间字段

下面这篇《动态为表添加存储时间字段》

添加字段，只能添加时间类型的字段。想把这个方法改良一下，尽量能做到通用。

 

set ansi_nulls on
go

set quoted_identifier on
go


-- =============================================
-- author:      insus.net
-- blog:        https://insus.cnblogs.com
-- create date: 2019-05-29
-- update date: 2019-05-29
-- description: 动态为表添加字段
-- =============================================
create procedure [dbo].[usp_dyanmicallyaddcolumn]
(
    @table_catalog sysname,
    @table_schema sysname,
    @table_name sysname,    
    @column_name sysname,
    @datatype sysname
)
as
begin
    if not exists(select top 1 1 from [tempdb].[sys].[columns] where object_id = object_id(@table_catalog + n'.'+ @table_schema + n'.' + @table_name) and [name] = @column_name)
    or not exists(select top 1 1 from [sys].[columns] where object_id = object_id(@table_catalog + n'.'+ @table_schema + n'.' + @table_name) and [name] = @column_name)    
        execute('alter table '+ @table_name +' add '+ @column_name +' ' + @datatype +'')
end
go

 

举例使用：