SQL 批量修改表结构

DECLARE @tableName NVARCHAR(50)
DECLARE @sql NVARCHAR(200)

DECLARE LangTable CURSOR FOR
SELECT name  FROM sys.tables WHERE name LIKE '%Language'

OPEN LangTable
FETCH NEXT FROM LangTable INTO @tableName

WHILE @@FETCH_STATUS = 0
BEGIN

SET @sql = 'ALTER TABLE  '+@tableName+' ALTER COLUMN LanguageDesc NVARCHAR(MAX)'
EXEC @sql

FETCH NEXT FROM LangTable INTO @tableName

END

CLOSE LangTable
DEALLOCATE LangTable