SQL server 获得 表的主键,自增键

2018-01-19 11:15:21来源:cnblogs.com作者:心韵人点击

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主键:

@tableName --表名

@id ---表对应的id

   SELECT SYSCOLUMNS.name FROM SYSCOLUMNS,SYSOBJECTS,SYSINDEXES,SYSINDEXKEYS WHERE SYSCOLUMNS.id = object_id(@tableName) AND SYSOBJECTS.xtype = 'PK' AND SYSOBJECTS.parent_obj = SYSCOLUMNS.id AND SYSINDEXES.id = SYSCOLUMNS.id AND SYSOBJECTS.name = SYSINDEXES.name AND SYSINDEXKEYS.id = SYSCOLUMNS.id AND SYSINDEXKEYS.indid = SYSINDEXES.indid AND SYSCOLUMNS.colid = SYSINDEXKEYS.colid

自增键:

SELECT COLUMN_NAME FROM INFORMATION_SCHEMA.columns WHERE TABLE_NAME=@tableName AND  COLUMNPROPERTY(OBJECT_ID(@tableName),COLUMN_NAME,'IsIdentity')=1

列名说明字段:

select name,id,xtype from dbo.sysobjects where name in (‘@tableName’)

select a.name,value from sys.extended_properties b, dbo.syscolumns a where  a.colid=b.minor_id  and a.id=b.major_id and a.id =@id  and a.iscomputed=0 

所有列名:

select columnName,typeName from (select a.*,b.name as typeName,b.length as typeLength,colid as columnId from (select id as objectId,name as columnName,xtype,length as columnLength,colid from dbo.syscolumns where id = @id ) a left join dbo.systypes b on a.xtype=b.xtype) t where typeName <> 'sysname' order by columnId

所有可编辑列名: 去掉主键列、自增键列、表内计算列

select columnName,typeName from (select a.*,b.name as typeName,b.length as typeLength,colid as columnId from (select id as objectId,name as columnName,xtype,length as columnLength,colid from dbo.syscolumns where id = @id  and iscomputed=0 and name not in(SELECT COLUMN_NAME FROM INFORMATION_SCHEMA.columns WHERE TABLE_NAME=@tableName AND  COLUMNPROPERTY(OBJECT_ID(@tableName),COLUMN_NAME,'IsIdentity')=1)) a left join dbo.systypes b on a.xtype=b.xtype) t where typeName <> 'sysname' order by columnId

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