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  • 通过系统数据库获取用户所有数据库、表、存储过程、视图

     
    --设置sql 可以获取实例名称
    sp_configure 'xp_cmdshell' , 1;
    go
    reconfigure;
    go

    --获取实例名
    EXEC sys .xp_cmdshell 'sqlcmd -Lc'

    --获取所有数据库
    Select * FROM Master..SysDatabases order by Name

    --获取数据库所有表
    use yeekang ---数据库名称
    select * from sysobjects where   type = 'U' order by name

    --获取指定表字段
    select * from syscolumns where id= OBJECT_ID('Userinfo' )

    SELECT
    表名 =case when a .colorder= 1 then d.name else '' end ,
    表说明 =case when a .colorder= 1 then isnull(f .value, '') else '' end,
    字段序号 =a. colorder,
    字段名 =a. name,
    标识 =case when COLUMNPROPERTY ( a .id, a.name ,'IsIdentity')= 1 then '' 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 ' ' else '' end,
    类型 =b. name,
    占用字节数 =a. length,
    长度 =COLUMNPROPERTY( a.id ,a. name,'PRECISION' ),
    小数位数 =isnull( COLUMNPROPERTY(a .id, a.name ,'Scale'), 0),
    允许空 =case when a .isnullable= 1 then '' else '' end,
    默认值 =isnull( e.text ,''),
    字段说明 =isnull( g.[value] ,'')
    FROM syscolumns a
    left join systypes b on a. xusertype=b .xusertype
    inner join sysobjects d on a. id=d .id and d .xtype= 'U' and d.name <>'dtproperties'
    left join syscomments e on a. cdefault=e .id
    left join sys. extended_properties g on a.id =g. major_id and a.colid =g. minor_id
    left join sys. extended_properties f on d.id =f. major_id and f. minor_id=0
    where a .id= OBJECT_ID('Userinfo' )
    order by a. id,a .colorder
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  • 原文地址:https://www.cnblogs.com/zhongkai/p/1983298.html
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