摘自: http://www.myexception.cn/sql-server/385562.html 高手进 锁 nolock,rowlock,tablock,xlock,paglock 锁 nolock,rowlock,tablock,xlock,paglock 请问大哥,在什么情况下用什么样的锁,小弟不太明白. ------解决方案-------------------- SQL code 锁定提示 描述 HOLDLOCK 将共享锁保留到事务完成,而不是在相应的表.行或数据页不再需要时就

http://blog.csdn.net/smahorse/article/details/8156483 --SQL Server 查询表的记录数 --one: 使用系统表. SELECT object_name (i.id) TableName, rows as RowCnt FROM sysindexes i INNER JOIN sysObjects o ON (o.id = i.id AND o.xType = 'U ') WHERE indid < 2 ORDER BY TableN

--SQL Server 查询表的记录数 --one: 使用系统表. SELECT object_name (i.id) TableName, rows as RowCnt FROM sysindexes i INNER JOIN sysObjects o ON (o.id = i.id AND o.xType = 'U ') ORDER BY TableName --****************** --two: 使用未公开的过程 "sp_MSforeachtable " ),

SELECT c.name,t.name TYPE,c.max_length,c.precision,c.scale,p.value FROM sys.systypes t INNER JOIN sys.columns c ON t.xtype=c.system_type_id  INNER JOIN sys.sysobjects o ON c.object_id=o.id LEFT JOIN sys.extended_properties p ON p.major_id=c.object_id

--查询表结构start SELECT 序号 = a.colorder,字段名称 = a.name,字段描述 = f.value, 标识 then '√' else '' end, 主键 FROM sysobjects where xtype = 'PK' and parent_obj = a.id and name in ( SELECT name FROM sysindexes WHERE indid in( SELECT indid FROM sysindexkeys WHERE id =

遇到一情况,前几天创建一个表,但是后来忙别的事情了,现在要用这个表,结果失忆了.....完全想不起来表名. 然后就想办法查询表的创建时间试图找回表名 最后找到了,根据表的创建时间排序,因为平常也用不到,直接记录下 select * from sys.tables order by create_date desc

select b.name from dbo.syscomments a, dbo.sysobjects b where a.id=b.id and b.xtype='p' and a.text like '%@tempGoods%' order by name xtype  代表类型 C = CHECK 约束D = 默认值或 DEFAULT 约束F = FOREIGN KEY 约束L = 日志FN = 标量函数IF = 内嵌表函数P = 存储过程PK = PRIMARY KEY 约束(类型是

--name   字段名称--user_type_id --max_length 最大长度--is_nullable 是否允许空--remark  描述SELECT c.name, c.user_type_id, c.max_length, c.is_nullable, remark = ex.value FROM sys.columns c inner JOIN  sys.extended_properties ex ON    ex.major_id = c.object_id     AN

SELECT '表名' = e.[name], '表说明' = f.[value], '字段序号' = a.colorder, '字段名' = a.[name], '字段类型' = b.[name], '字段长度' = COLUMNPROPERTY(a.id,a.name,'PRECISION'), '占用字节数' = a.length, '字段注释' = c.[value], ), then '√'else '' end, '默认值' = d.[text], FROM sysobjects w

SELECT TOP (500) ID, Personname, Personcode, Telphone, Fraction into temp3 FROM Records AS a WHERE (LEN(Personcode) = 18 OR LEN(Personcode) = 15) AND (NOT EXISTS (SELECT 1 AS Expr1 FROM Records WHERE (Personname = a.Personname) AND (Fraction > a.Frac

SELECT * FROM TB WHERE COL LIKE N'%[吖-咗]%'

SELECT a.name,b.name,c.DATA_TYPE,b.max_length FROM sys.tables a join sys.columns b on b.object_id = a.object_id join INFORMATION_SCHEMA.COLUMNS c on b.name=c.COLUMN_NAME and a.name=c.TABLE_NAME where a.name='shipment_header'

SELECT OBJECT_NAME(ii.id) TableName ,rows FROM sysindexes ii INNER JOIN sysobjects oo ON ( oo.id = ii.id AND oo.xtype = 'U ') ORDER BY rows desc ;

create procedure proc_view_cloumns ( ) ) AS select b.name,a.value,c.name, b.max_length from sys.extended_properties a, sys.columns b,sys.types c where a.major_id = OBJECT_ID(@tableName) and a.major_id = b.object_id and a.minor_id = b.column_id and b.

方式1: select b.column_name from information_schema.table_constraints a inner join information_schema.constraint_column_usage b on a.constraint_name = b.constraint_name where a.constraint_type = 'PRIMARY KEY' and a.table_name = 'products' go 方式2: SELEC

--1:获取当前数据库中的所有用户表   www.2cto.com   select Name from sysobjects where xtype='u' and status>=0  --2:获取某一个表的所有字段  select name from syscolumns where id=object_id('表名')  --3:查看与某一个表相关的视图.存储过程.函数  select a.* from sysobjects a, syscomments b where a.id = b

SELECT 表名 = case when a.colorder= then d.name else '' end, 表说明 = case when a.colorder= 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')= then '√'else '' end, 主键 = case when

1:图形化界面设置外键 解决:table->选中表->design->选中需要设置外键的字段->选择"关系"->选择"添加"->在表和列规范处选择右边省略号(见图一)->再选择相应关系. 图一: 2:常用命令 1)SQL Server 查询表的主键.外键和被谁引用的表: exec  sp_helpconstraint '表名' 2)GETDATE() 函数从 SQL Server 返回当前的时间和日期 例:SELECT GE

今天遇到的问题比较有意思.首先是很久没有打开测试数据库了,今天打开,使用service程序测试的时候出现下面的错误提示:Message: System.Data.SqlClient.SqlException: Login failed for user 'dcp_prod'.  Reason: The password of the account has expired.很明显,这个是因为密码失效了,dcp_prod这个账户使用了密码失效策略,打开数据库查看这个账户的属性,果然,Enforce

经常碰到一些忘记表名称的情况,此时只记得个大概,此时可通过查询系统表Sysobjects找到所要的表名,如要查找包含用户的表名,可通过以下SQL语句实现, Select * From sysobjects Where name like '%user%' 如果知道列名,想查找包含有该列的表名,可加上系统表syscolumns来实现,如想查找列名中包含有user的所有表名,可通过以下SQL语句来实现 Select * From sysobjects s Where Exists( Select *

-- SQL Server 2008 SELECT 表名 = d.name, 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 F