摘要：显示所有表的表名、字段名、字段长度、字段说明的SQL语句SELECT Sysobjects.name AS TABLE_NAME, syscolumns.Id, syscolumns.name AS COLUMN_NAME, systypes.name AS DATA_TYPE, syscolumns.length as CHARACTER_MAXIMUM_LENGTH, sys.extended_properties.[value] AS COLUMN_DESCRIPTION, syscomments.text as COLUMN_DEFAUL... 阅读全文