精妙的SQL和SQL SERVER 与ACCESS、EXCEL的数据导入导出转换

 
假如帐号为SA执行EXEC sp_password NULL, 'newpassword', sa

* 怎么判定出一个表的哪些字段不答应为空？

select COLUMN_NAME from INFORMATION_SCHEMA.COLUMNS where IS_NULLABLE='NO' and TABLE_NAME=tablename

* 如何在数据库里找到含有相同字段的表？
a. 查已知列名的情况
SELECT b.name as TableName,a.name as columnname
From syscolumns a INNER JOIN sysobjects b
ON a.id=b.id
AND b.type='U'
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