SQL SERVER得到某个数据库下面所有表字段的相信信息或者某个表的相信信息
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 d.name='course' --如果只查询指定表,加上此条件
order by a.id,a.colorder
获取指定SQLServer数据库所有表及视图的字段列表及类型、长度
Select o.Name As ObjectsName , c.name As ColumnsName , t.name As ColumnsType , c.length As ColumnsLength
From SysObjects As o , SysColumns As c , SysTypes As t
Where o.type in ('u','v') And o.id = c.id And c.xtype = t.xtype
Order By o.name , c.name , t.name , c.Length
从SQL SERVER得到表、视图、存储过程、触发器、字段的信息
select name from sysobjects where xtype='TR' --所有触发器
select name from sysobjects where xtype='P' --所有存储过程
select name from sysobjects where xtype='V' --所有视图
select name from sysobjects where xtype='U' --所有表
SQL Server修改表结构后批量更新所有视图
CREATE PROCEDURE RefreshAllView AS
DECLARE MyCursor CURSOR
FOR select Name from dbo.sysobjects where OBJECTPROPERTY(id, N'IsView') = 1 and (not name in ('sysconstraints','syssegments'))
DECLARE @name varchar(40)
OPEN MyCursor
FETCH NEXT FROM MyCursor INTO @name
WHILE (@@fetch_status <> -1)
BEGIN
IF (@@fetch_status <> -2)
begin
exec sp_refreshview @name
end
FETCH NEXT FROM MyCursor INTO @name
END
CLOSE MyCursor
DEALLOCATE MyCursor
刷新字段（此脚本用于在删除或添加字段时刷新相关视图，并检查视图、函数、存储过程有效性。）：
--视图、存储过程、函数名称
DECLARE @NAME NVARCHAR(255);
--局部游标
DECLARE @CUR CURSOR
--自动修改未上状态为旷课
SET @CUR=CURSOR SCROLL DYNAMIC FOR
SELECT NAME FROM DBO.SYSOBJECTS
WHERE NAME NOT IN ('SYSCONSTRAINTS','SYSSEGMENTS')
AND
(
OBJECTPROPERTY(ID, N'IsView') = 1 --视图
OR OBJECTPROPERTY(ID,N'IsProcedure') = 1 --存储过程
OR OBJECTPROPERTY(ID,N'IsScalarFunction') = 1 --标量函数
OR OBJECTPROPERTY(ID,N'IsTableFunction') = 1 --标题函数
OR OBJECTPROPERTY(ID,N'IsInlineFunction') = 1 --内联函数
);
OPEN @CUR;
FETCH NEXT FROM @CUR INTO @NAME
WHILE (@@FETCH_STATUS=0)
BEGIN
DECLARE @OldText NVARCHAR(MAX);
DECLARE @NewText NVARCHAR(MAX);
--读取创建脚本，当脚本超长时分成多条记录时合并
SELECT @OldText=@OldText + CHAR(10) + CHAR(13) + RTRIM(TEXT) FROM SYSCOMMENTS WHERE ID = OBJECT_ID(@NAME);
--将创建脚本替换为更新脚本
SET @NewText=REPLACE(@OldText,N'CREATE VIEW',N'ALTER VIEW');
SET @NewText=REPLACE(@NewText,N'CREATE PROCEDURE',N'ALTER PROCEDURE');
SET @NewText=REPLACE(@NewText,N'CREATE FUNCTION',N'ALTER FUNCTION');
BEGIN TRY
EXEC(@NewText);
END TRY
BEGIN CATCH
PRINT N'---------------------------------------------------------------------------';
PRINT @NAME + N' : ' + ERROR_MESSAGE();
--PRINT @OldText;
PRINT N'---------------------------------------------------------------------------';
END CATCH
FETCH NEXT FROM @CUR INTO @NAME
END
CLOSE @CUR;
DEALLOCATE @CUR;