‘壹’ sql server,如何给表和字段添加备注,并更新备注,以及查询备注
sqlserver没有这样的功能,但你可以用powerdesigner等工具去建表,这个可以实现你要的,然后你在导到sqlserver就ok了
‘贰’ SQL查询表备注
SELECT
表名=case when a.colorder=1 then d.name 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.xtype=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 sysproperties g on a.id=g.id and a.colid=g.smallid
order by a.id,a.colorder
‘叁’ sql server如何给表和字段添加备注并更新备注以及查询备注呢
表添加和修改备注:
新增:exec sp_addextendedproperty N'MS_Description', N'表备注内容', N'SCHEMA', N'dbo',N'table', N'表名';
修改:exec sp_updateextendedproperty N'MS_Description', N'表备注内容', N'SCHEMA', N'dbo',N'table', N'表名';
字段添加和修改备注:
新增:exec sp_addextendedproperty N'MS_Description', N'字段备注内容', N'SCHEMA', N'dbo',N'table', N'表名',N'column', N'字段名';
修改:exec sp_updateextendedproperty N'MS_Description', N'字段备注内容', N'SCHEMA', N'dbo',N'table', N'表名',N'column', N'字段名';