批量修改表结构--同类型的表结构

declare @name sysname
DECLARE @sqlfilter VARCHAR(max)

declare csr cursor

for select TABLE_NAME from INFORMATION_SCHEMA.TABLES where TABLE_NAME like 'box_mac_%'

open csr

FETCH NEXT FROM csr INTO @name

while (@@FETCH_STATUS=0)

BEGIN

set @sqlfilter='alter table '+@name+' add drive_quite_start datetime null'
print @sqlfilter;
exec(@sqlfilter);

fetch next from csr into @name

END

CLOSE csr

DEALLOCATE csr