获取数据库中的表结构的sql语句
--获取某个数据库中的表结构
SELECT
--表名=case when a.colorder=1 then d.name else '' end,
序号=a.colorder,
--标识=case when COLUMNPROPERTY( a.id,a.name,'IsIdentity')=1 then '是'else '' end,
主键=case when exists(SELECT 1 from sysobjects where xtype='PK' and name in (
SELECT name from sysindexes WHERE indid in(
SELECT indid from sysindexkeys WHERE id = a.id AND colid=a.colid
))) then '是' else '' end,
字段名=a.name,
类型=b.name,
占用字节数=a.length,
长度=COLUMNPROPERTY(a.id,a.name,'PRECISION'),
允许空值=case when a.isnullable=1 then '是'else '否' end,
默认值=isnull(e.text,''),
字段描述=isnull(g.[value],'')
from syscolumns a
left join systypes b on a.xtype=b.xusertype
inner join sysobjects d on a.id=d.id and d.xtype='U' and d.name&
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第一种用法：
SELECT (CASE type WHEN 'u' THEN '用户表' WHEN 's' THEN '系统表' ELSE '其他' END) AS TABLEKIND,* from SYSOBJECTS
第二中用法：
SELECT (CASE WHEN crdate<'2006-01-01' THEN 'early' WHEN crdate<'2009-01-01' THEN 'nearly' ELSE 'now' END) AS PERIOD,* from SYSOBJECTS ......
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Questions
I have a simple app that
uses an SQL Express 2005 database. When the user closes the app, I want
to give the option to back up the database by making a copy in another
directory. However, when I try to do it, I get "The process cannot
access the file '...\Pricing.MDF' because i ......
//--添加服务器
EXEC sp_addlinkedserver
@server='LQXLSJ-600A5A60',--被访问的服务器别名
@srvproduct='',
@provider='SQLOLEDB',
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order by
排序通过order by子句实现，order by在SELECT语句的最后。
语法：
order by field1 [ASC|DESC][,field2 [ASC|DESC],..,fieldn [ASC|DESC]]
ASC：升序
DESC：降序
默认为升序
空值作为无穷大来处理。
另外可以按照查询列表中序号进行排序。
系统在用户写出查询列表的同时就赋予每个列名一� ......
