SQLServer在多个表中都增加一个字段的方法

1、使用游标

declare @sql varchar(200), @name varchar(40)
declare my_cursor scroll cursor for
    select name from sysobjects where type = \'u\' and name like \'jobs_%\'
open my_cursor
fetch next from my_cursor into @name
while(@@fetch_status=0)
begin
    print \'processing \' + @name
    set @sql = N\'alter table testbfcmisuser.\' + @name + N\' add note varchar(200)\'
    exec(@sql)
    print \'finished\'
    fetch next from my_cursor into @name
end
close my_cursor
deallocate my_cursor

2、使用临时表

declare @sql varchar(200), @name varchar(100), @count int

select identity(int, 1, 1) as ID, name
    into #JobTable
    from sysobjects
    where type = \'u\' and name like   \'Jobs_%\'

set   @count=@@rowcount

while   @count>0
begin
    select top 1 @name = name 
        from #JobTable
        where id = @count

    print    \'processing \' + @name
    set @sql = N\'alter table testbfcmisuser.\' + @name + N\' add note varchar(200)\'
    exec(@sql)
    print \'finished\'
        set @count = @count - 1
end

drop   table   #JobTable


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