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逐客叫我：
看完了懵了，一会原生方法栈一会堆，自己都不用一套。
深入JVM系列（一）之内存模型与内存分配 -
xhwahaha：
import java.util.Arrays;public ...
腾讯的一个面试题 -
j00131120：
总结的非常不错
从员工到总监，你要明白的8个道理 -
Will.Du：
这是thinking in java的例子吧
对象序列化 -
ping22changxin：
能否借你事例源码学习一下，谢谢了：812185421@qq.c ...
ActiveMQ发送ObjectMessage的一个问题
多层开发中，经常写SQL SERVER存储过程的朋友看过来!
下面是自动产生存储过程的sql 脚本,你可以在查询分析器中运行.
运行完,你会看到多了四个存储过程
pr__SYS_MakeInsertRecordProc
pr__SYS_MakeUpdateRecordProc
pr__SYS_MakeSelectRecordProc
pr__SYS_MakeDeleteRecordProc
执行方式：在查询分析器中执行
pr__SYS_MakeInsertRecordProc '表名' --得到插入语句
pr__SYS_MakeInsertRecordProc '表名',1 --得到插入语句，并创建Insert存储过程
完整脚本如下:
SET QUOTED_IDENTIFIER OFF
GO
SET ANSI_NULLS ON
GO
CREATE PROC pr__SYS_MakeDeleteRecordProc
@sTableName varchar(128),
@bExecute bit = 0
AS
IF dbo.fnTableHasPrimaryKey(@sTableName) = 0
BEGIN
RAISERROR ('Procedure cannot be created on a table with no primary key.', 10, 1)
RETURN
END
DECLARE@sProcText varchar(8000),
@sKeyFields varchar(2000),
@sWhereClause varchar(2000),
@sColumnName varchar(128),
@nColumnID smallint,
@bPrimaryKeyColumn bit,
@nAlternateType int,
@nColumnLength int,
@nColumnPrecision int,
@nColumnScale int,
@IsNullable bit,
@IsIdentity int,
@sTypeName varchar(128),
@sDefaultValue varchar(4000),
@sCRLF char(2),
@sTAB char(1)
SET@sTAB = char(9)
SET @sCRLF = char(13) + char(10)
SET @sProcText = ''
SET @sKeyFields = ''
SET@sWhereClause = ''
SET @sProcText = @sProcText + 'IF EXISTS(SELECT * FROM sysobjects WHERE name = ''prApp_' + @sTableName + '_Delete'')' + @sCRLF
SET @sProcText = @sProcText + @sTAB + 'DROP PROC prApp_' + @sTableName + '_Delete' + @sCRLF
IF @bExecute = 0
SET @sProcText = @sProcText + 'GO' + @sCRLF
SET @sProcText = @sProcText + @sCRLF
PRINT @sProcText
IF @bExecute = 1
EXEC (@sProcText)
SET @sProcText = ''
SET @sProcText = @sProcText + '----------------------------------------------------------------------------' + @sCRLF
SET @sProcText = @sProcText + '-- Delete a single record from ' + @sTableName + @sCRLF
SET @sProcText = @sProcText + '----------------------------------------------------------------------------' + @sCRLF
SET @sProcText = @sProcText + 'CREATE PROC prApp_' + @sTableName + '_Delete' + @sCRLF
DECLARE crKeyFields cursor for
SELECT*
FROMdbo.fnTableColumnInfo(@sTableName)
ORDER BY 2
OPEN crKeyFields
FETCH NEXT
FROM crKeyFields
INTO @sColumnName, @nColumnID, @bPrimaryKeyColumn, @nAlternateType,
@nColumnLength, @nColumnPrecision, @nColumnScale, @IsNullable,
@IsIdentity, @sTypeName, @sDefaultValue
WHILE (@@FETCH_STATUS = 0)
BEGIN
IF (@bPrimaryKeyColumn = 1)
BEGIN
IF (@sKeyFields <> '')
SET @sKeyFields = @sKeyFields + ',' + @sCRLF
SET @sKeyFields = @sKeyFields + @sTAB + '@' + @sColumnName + ' ' + @sTypeName
IF (@nAlternateType = 2) --decimal, numeric
SET @sKeyFields = @sKeyFields + '(' + CAST(@nColumnPrecision AS varchar(3)) + ', '
+ CAST(@nColumnScale AS varchar(3)) + ')'
ELSE IF (@nAlternateType = 1) --character and binary
SET @sKeyFields = @sKeyFields + '(' + CAST(@nColumnLength AS varchar(4)) + ')'
IF (@sWhereClause = '')
SET @sWhereClause = @sWhereClause + 'WHERE '
ELSE
SET @sWhereClause = @sWhereClause + ' AND '
SET @sWhereClause = @sWhereClause + @sTAB + @sColumnName + ' = @' + @sColumnName + @sCRLF
END
FETCH NEXT
FROM crKeyFields
INTO @sColumnName, @nColumnID, @bPrimaryKeyColumn, @nAlternateType,
@nColumnLength, @nColumnPrecision, @nColumnScale, @IsNullable,
@IsIdentity, @sTypeName, @sDefaultValue
END
CLOSE crKeyFields
DEALLOCATE crKeyFields
SET @sProcText = @sProcText + @sKeyFields + @sCRLF
SET @sProcText = @sProcText + 'AS' + @sCRLF
SET @sProcText = @sProcText + @sCRLF
SET @sProcText = @sProcText + 'DELETE' + @sTableName + @sCRLF
SET @sProcText = @sProcText + @sWhereClause
SET @sProcText = @sProcText + @sCRLF
IF @bExecute = 0
SET @sProcText = @sProcText + 'GO' + @sCRLF
PRINT @sProcText
IF @bExecute = 1
EXEC (@sProcText)
GO
SET QUOTED_IDENTIFIER OFF
GO
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
SET ANSI_NULLS ON
GO
CREATE PROC pr__SYS_MakeInsertRecordProc
@sTableName varchar(128),
@bExecute bit = 0
AS
IF dbo.fnTableHasPrimaryKey(@sTableName) = 0
BEGIN
RAISERROR ('Procedure cannot be created on a table with no primary key.', 10, 1)
RETURN
END
DECLARE@sProcText varchar(8000),
@sKeyFields varchar(2000),
@sAllFields varchar(2000),
@sAllParams varchar(2000),
@sWhereClause varchar(2000),
@sColumnName varchar(128),
@nColumnID smallint,
@bPrimaryKeyColumn bit,
@nAlternateType int,
@nColumnLength int,
@nColumnPrecision int,
@nColumnScale int,
@IsNullable bit,
@IsIdentity int,
@HasIdentity int,
@sTypeName varchar(128),
@sDefaultValue varchar(4000),
@sCRLF char(2),
@sTAB char(1)
SET @HasIdentity = 0
SET@sTAB = char(9)
SET @sCRLF = char(13) + char(10)
SET @sProcText = ''
SET @sKeyFields = ''
SET@sAllFields = ''
SET@sWhereClause = ''
SET@sAllParams = ''
SET @sProcText = @sProcText + 'IF EXISTS(SELECT * FROM sysobjects WHERE name = ''prApp_' + @sTableName + '_Insert'')' + @sCRLF
SET @sProcText = @sProcText + @sTAB + 'DROP PROC prApp_' + @sTableName + '_Insert' + @sCRLF
IF @bExecute = 0
SET @sProcText = @sProcText + 'GO' + @sCRLF
SET @sProcText = @sProcText + @sCRLF
PRINT @sProcText
IF @bExecute = 1
EXEC (@sProcText)
SET @sProcText = ''
SET @sProcText = @sProcText + '----------------------------------------------------------------------------' + @sCRLF
SET @sProcText = @sProcText + '-- Insert a single record into ' + @sTableName + @sCRLF
SET @sProcText = @sProcText + '----------------------------------------------------------------------------' + @sCRLF
SET @sProcText = @sProcText + 'CREATE PROC prApp_' + @sTableName + '_Insert' + @sCRLF
DECLARE crKeyFields cursor for
SELECT*
FROMdbo.fnTableColumnInfo(@sTableName)
ORDER BY 2
OPEN crKeyFields
FETCH NEXT
FROM crKeyFields
INTO @sColumnName, @nColumnID, @bPrimaryKeyColumn, @nAlternateType,
@nColumnLength, @nColumnPrecision, @nColumnScale, @IsNullable,
@IsIdentity, @sTypeName, @sDefaultValue
WHILE (@@FETCH_STATUS = 0)
BEGIN
IF (@IsIdentity = 0)
BEGIN
IF (@sKeyFields <> '')
SET @sKeyFields = @sKeyFields + ',' + @sCRLF
SET @sKeyFields = @sKeyFields + @sTAB + '@' + @sColumnName + ' ' + @sTypeName
IF (@sAllFields <> '')
BEGIN
SET @sAllParams = @sAllParams + ', '
SET @sAllFields = @sAllFields + ', '
END
IF (@sTypeName = 'timestamp')
SET @sAllParams = @sAllParams + 'NULL'
ELSE IF (@sDefaultValue IS NOT NULL)
SET @sAllParams = @sAllParams + 'COALESCE(@' + @sColumnName + ', ' + @sDefaultValue + ')'
ELSE
SET @sAllParams = @sAllParams + '@' + @sColumnName
SET @sAllFields = @sAllFields + @sColumnName
END
ELSE
BEGIN
SET @HasIdentity = 1
END
IF (@nAlternateType = 2) --decimal, numeric
SET @sKeyFields = @sKeyFields + '(' + CAST(@nColumnPrecision AS varchar(3)) + ', '
+ CAST(@nColumnScale AS varchar(3)) + ')'
ELSE IF (@nAlternateType = 1) --character and binary
SET @sKeyFields = @sKeyFields + '(' + CAST(@nColumnLength AS varchar(4)) + ')'
IF (@IsIdentity = 0)
BEGIN
IF (@sDefaultValue IS NOT NULL) OR (@IsNullable = 1) OR (@sTypeName = 'timestamp')
SET @sKeyFields = @sKeyFields + ' = NULL'
END
FETCH NEXT
FROM crKeyFields
INTO @sColumnName, @nColumnID, @bPrimaryKeyColumn, @nAlternateType,
@nColumnLength, @nColumnPrecision, @nColumnScale, @IsNullable,
@IsIdentity, @sTypeName, @sDefaultValue
END
CLOSE crKeyFields
DEALLOCATE crKeyFields
SET @sProcText = @sProcText + @sKeyFields + @sCRLF
SET @sProcText = @sProcText + 'AS' + @sCRLF
SET @sProcText = @sProcText + @sCRLF
SET @sProcText = @sProcText + 'INSERT ' + @sTableName + '(' + @sAllFields + ')' + @sCRLF
SET @sProcText = @sProcText + 'VALUES (' + @sAllParams + ')' + @sCRLF
SET @sProcText = @sProcText + @sCRLF
IF (@HasIdentity = 1)
BEGIN
SET @sProcText = @sProcText + 'RETURN SCOPE_IDENTITY()' + @sCRLF
SET @sProcText = @sProcText + @sCRLF
END
IF @bExecute = 0
SET @sProcText = @sProcText + 'GO' + @sCRLF
PRINT @sProcText
IF @bExecute = 1
EXEC (@sProcText)
GO
SET QUOTED_IDENTIFIER OFF
GO
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER OFF
GO
SET ANSI_NULLS ON
GO
CREATE PROC pr__SYS_MakeSelectRecordProc
@sTableName varchar(128),
@bExecute bit = 0
AS
IF dbo.fnTableHasPrimaryKey(@sTableName) = 0
BEGIN
RAISERROR ('Procedure cannot be created on a table with no primary key.', 10, 1)
RETURN
END
DECLARE@sProcText varchar(8000),
@sKeyFields varchar(2000),
@sSelectClause varchar(2000),
@sWhereClause varchar(2000),
@sColumnName varchar(128),
@nColumnID smallint,
@bPrimaryKeyColumn bit,
@nAlternateType int,
@nColumnLength int,
@nColumnPrecision int,
@nColumnScale int,
@IsNullable bit,
@IsIdentity int,
@sTypeName varchar(128),
@sDefaultValue varchar(4000),
@sCRLF char(2),
@sTAB char(1)
SET@sTAB = char(9)
SET @sCRLF = char(13) + char(10)
SET @sProcText = ''
SET @sKeyFields = ''
SET@sSelectClause = ''
SET@sWhereClause = ''
SET @sProcText = @sProcText + 'IF EXISTS(SELECT * FROM sysobjects WHERE name = ''prApp_' + @sTableName + '_Select'')' + @sCRLF
SET @sProcText = @sProcText + @sTAB + 'DROP PROC prApp_' + @sTableName + '_Select' + @sCRLF
IF @bExecute = 0
SET @sProcText = @sProcText + 'GO' + @sCRLF
SET @sProcText = @sProcText + @sCRLF
PRINT @sProcText
IF @bExecute = 1
EXEC (@sProcText)
SET @sProcText = ''
SET @sProcText = @sProcText + '----------------------------------------------------------------------------' + @sCRLF
SET @sProcText = @sProcText + '-- Select a single record from ' + @sTableName + @sCRLF
SET @sProcText = @sProcText + '----------------------------------------------------------------------------' + @sCRLF
SET @sProcText = @sProcText + 'CREATE PROC prApp_' + @sTableName + '_Select' + @sCRLF
DECLARE crKeyFields cursor for
SELECT*
FROMdbo.fnTableColumnInfo(@sTableName)
ORDER BY 2
OPEN crKeyFields
FETCH NEXT
FROM crKeyFields
INTO @sColumnName, @nColumnID, @bPrimaryKeyColumn, @nAlternateType,
@nColumnLength, @nColumnPrecision, @nColumnScale, @IsNullable,
@IsIdentity, @sTypeName, @sDefaultValue
WHILE (@@FETCH_STATUS = 0)
BEGIN
IF (@bPrimaryKeyColumn = 1)
BEGIN
IF (@sKeyFields <> '')
SET @sKeyFields = @sKeyFields + ',' + @sCRLF
SET @sKeyFields = @sKeyFields + @sTAB + '@' + @sColumnName + ' ' + @sTypeName
IF (@nAlternateType = 2) --decimal, numeric
SET @sKeyFields = @sKeyFields + '(' + CAST(@nColumnPrecision AS varchar(3)) + ', '
+ CAST(@nColumnScale AS varchar(3)) + ')'
ELSE IF (@nAlternateType = 1) --character and binary
SET @sKeyFields = @sKeyFields + '(' + CAST(@nColumnLength AS varchar(4)) + ')'
IF (@sWhereClause = '')
SET @sWhereClause = @sWhereClause + 'WHERE '
ELSE
SET @sWhereClause = @sWhereClause + ' AND '
SET @sWhereClause = @sWhereClause + @sTAB + @sColumnName + ' = @' + @sColumnName + @sCRLF
END
IF (@sSelectClause = '')
SET @sSelectClause = @sSelectClause + 'SELECT'
ELSE
SET @sSelectClause = @sSelectClause + ',' + @sCRLF
SET @sSelectClause = @sSelectClause + @sTAB + @sColumnName
FETCH NEXT
FROM crKeyFields
INTO @sColumnName, @nColumnID, @bPrimaryKeyColumn, @nAlternateType,
@nColumnLength, @nColumnPrecision, @nColumnScale, @IsNullable,
@IsIdentity, @sTypeName, @sDefaultValue
END
CLOSE crKeyFields
DEALLOCATE crKeyFields
SET @sSelectClause = @sSelectClause + @sCRLF
SET @sProcText = @sProcText + @sKeyFields + @sCRLF
SET @sProcText = @sProcText + 'AS' + @sCRLF
SET @sProcText = @sProcText + @sCRLF
SET @sProcText = @sProcText + @sSelectClause
SET @sProcText = @sProcText + 'FROM' + @sTableName + @sCRLF
SET @sProcText = @sProcText + @sWhereClause
SET @sProcText = @sProcText + @sCRLF
IF @bExecute = 0
SET @sProcText = @sProcText + 'GO' + @sCRLF
PRINT @sProcText
IF @bExecute = 1
EXEC (@sProcText)
GO
SET QUOTED_IDENTIFIER OFF
GO
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
SET ANSI_NULLS ON
GO
CREATE PROC pr__SYS_MakeUpdateRecordProc
@sTableName varchar(128),
@bExecute bit = 0
AS
IF dbo.fnTableHasPrimaryKey(@sTableName) = 0
BEGIN
RAISERROR ('Procedure cannot be created on a table with no primary key.', 10, 1)
RETURN
END
DECLARE@sProcText varchar(8000),
@sKeyFields varchar(2000),
@sSetClause varchar(2000),
@sWhereClause varchar(2000),
@sColumnName varchar(128),
@nColumnID smallint,
@bPrimaryKeyColumn bit,
@nAlternateType int,
@nColumnLength int,
@nColumnPrecision int,
@nColumnScale int,
@IsNullable bit,
@IsIdentity int,
@sTypeName varchar(128),
@sDefaultValue varchar(4000),
@sCRLF char(2),
@sTAB char(1)
SET@sTAB = char(9)
SET @sCRLF = char(13) + char(10)
SET @sProcText = ''
SET @sKeyFields = ''
SET@sSetClause = ''
SET@sWhereClause = ''
SET @sProcText = @sProcText + 'IF EXISTS(SELECT * FROM sysobjects WHERE name = ''prApp_' + @sTableName + '_Update'')' + @sCRLF
SET @sProcText = @sProcText + @sTAB + 'DROP PROC prApp_' + @sTableName + '_Update' + @sCRLF
IF @bExecute = 0
SET @sProcText = @sProcText + 'GO' + @sCRLF
SET @sProcText = @sProcText + @sCRLF
PRINT @sProcText
IF @bExecute = 1
EXEC (@sProcText)
SET @sProcText = ''
SET @sProcText = @sProcText + '----------------------------------------------------------------------------' + @sCRLF
SET @sProcText = @sProcText + '-- Update a single record in ' + @sTableName + @sCRLF
SET @sProcText = @sProcText + '----------------------------------------------------------------------------' + @sCRLF
SET @sProcText = @sProcText + 'CREATE PROC prApp_' + @sTableName + '_Update' + @sCRLF
DECLARE crKeyFields cursor for
SELECT*
FROMdbo.fnTableColumnInfo(@sTableName)
ORDER BY 2
OPEN crKeyFields
FETCH NEXT
FROM crKeyFields
INTO @sColumnName, @nColumnID, @bPrimaryKeyColumn, @nAlternateType,
@nColumnLength, @nColumnPrecision, @nColumnScale, @IsNullable,
@IsIdentity, @sTypeName, @sDefaultValue
WHILE (@@FETCH_STATUS = 0)
BEGIN
IF (@sKeyFields <> '')
SET @sKeyFields = @sKeyFields + ',' + @sCRLF
SET @sKeyFields = @sKeyFields + @sTAB + '@' + @sColumnName + ' ' + @sTypeName
IF (@nAlternateType = 2) --decimal, numeric
SET @sKeyFields = @sKeyFields + '(' + CAST(@nColumnPrecision AS varchar(3)) + ', '
+ CAST(@nColumnScale AS varchar(3)) + ')'
ELSE IF (@nAlternateType = 1) --character and binary
SET @sKeyFields = @sKeyFields + '(' + CAST(@nColumnLength AS varchar(4)) + ')'
IF (@bPrimaryKeyColumn = 1)
BEGIN
IF (@sWhereClause = '')
SET @sWhereClause = @sWhereClause + 'WHERE '
ELSE
SET @sWhereClause = @sWhereClause + ' AND '
SET @sWhereClause = @sWhereClause + @sTAB + @sColumnName + ' = @' + @sColumnName + @sCRLF
END
ELSE
IF (@IsIdentity = 0)
BEGIN
IF (@sSetClause = '')
SET @sSetClause = @sSetClause + 'SET'
ELSE
SET @sSetClause = @sSetClause + ',' + @sCRLF
SET @sSetClause = @sSetClause + @sTAB + @sColumnName + ' = '
IF (@sTypeName = 'timestamp')
SET @sSetClause = @sSetClause + 'NULL'
ELSE IF (@sDefaultValue IS NOT NULL)
SET @sSetClause = @sSetClause + 'COALESCE(@' + @sColumnName + ', ' + @sDefaultValue + ')'
ELSE
SET @sSetClause = @sSetClause + '@' + @sColumnName
END
IF (@IsIdentity = 0)
BEGIN
IF (@IsNullable = 1) OR (@sTypeName = 'timestamp')
SET @sKeyFields = @sKeyFields + ' = NULL'
END
FETCH NEXT
FROM crKeyFields
INTO @sColumnName, @nColumnID, @bPrimaryKeyColumn, @nAlternateType,
@nColumnLength, @nColumnPrecision, @nColumnScale, @IsNullable,
@IsIdentity, @sTypeName, @sDefaultValue
END
CLOSE crKeyFields
DEALLOCATE crKeyFields
SET @sSetClause = @sSetClause + @sCRLF
SET @sProcText = @sProcText + @sKeyFields + @sCRLF
SET @sProcText = @sProcText + 'AS' + @sCRLF
SET @sProcText = @sProcText + @sCRLF
SET @sProcText = @sProcText + 'UPDATE' + @sTableName + @sCRLF
SET @sProcText = @sProcText + @sSetClause
SET @sProcText = @sProcText + @sWhereClause
SET @sProcText = @sProcText + @sCRLF
IF @bExecute = 0
SET @sProcText = @sProcText + 'GO' + @sCRLF
PRINT @sProcText
IF @bExecute = 1
EXEC (@sProcText)
GO
SET QUOTED_IDENTIFIER OFF
GO
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
SET ANSI_NULLS ON
GO
CREATE FUNCTION dbo.fnCleanDefaultValue(@sDefaultValue varchar(4000))
RETURNS varchar(4000)
AS
BEGIN
RETURN SubString(@sDefaultValue, 2, DataLength(@sDefaultValue)-2)
END
GO
SET QUOTED_IDENTIFIER OFF
GO
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
SET ANSI_NULLS ON
GO
CREATE FUNCTION dbo.fnColumnDefault(@sTableName varchar(128), @sColumnName varchar(128))
RETURNS varchar(4000)
AS
BEGIN
DECLARE @sDefaultValue varchar(4000)
SELECT@sDefaultValue = dbo.fnCleanDefaultValue(COLUMN_DEFAULT)
FROMINFORMATION_SCHEMA.COLUMNS
WHERETABLE_NAME = @sTableName
AND COLUMN_NAME = @sColumnName
RETURN @sDefaultValue
END
GO
SET QUOTED_IDENTIFIER OFF
GO
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
SET ANSI_NULLS ON
GO
CREATE FUNCTION dbo.fnIsColumnPrimaryKey(@sTableName varchar(128), @nColumnName varchar(128))
RETURNS bit
AS
BEGIN
DECLARE @nTableID int,
@nIndexID int,
@i int
SET @nTableID = OBJECT_ID(@sTableName)
SELECT @nIndexID = indid
FROM sysindexes
WHERE id = @nTableID
AND indid BETWEEN 1 And 254
AND (status & 2048) = 2048
IF @nIndexID Is Null
RETURN 0
IF @nColumnName IN
(SELECT sc.[name]
FROM sysindexkeys sik
INNER JOIN syscolumns sc ON sik.id = sc.id AND sik.colid = sc.colid
WHERE sik.id = @nTableID
AND sik.indid = @nIndexID)
BEGIN
RETURN 1
END
RETURN 0
END
GO
SET QUOTED_IDENTIFIER OFF
GO
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
SET ANSI_NULLS ON
GO
CREATE FUNCTION dbo.fnTableColumnInfo(@sTableName varchar(128))
RETURNS TABLE
AS
RETURN
SELECTc.name AS sColumnName,
c.colid AS nColumnID,
dbo.fnIsColumnPrimaryKey(@sTableName, c.name) AS bPrimaryKeyColumn,
CASE WHEN t.name IN ('char', 'varchar', 'binary', 'varbinary', 'nchar', 'nvarchar') THEN 1
WHEN t.name IN ('decimal', 'numeric') THEN 2
ELSE 0
END AS nAlternateType,
c.length AS nColumnLength,
c.prec AS nColumnPrecision,
c.scale AS nColumnScale,
c.IsNullable,
SIGN(c.status & 128) AS IsIdentity,
t.name as sTypeName,
dbo.fnColumnDefault(@sTableName, c.name) AS sDefaultValue
FROMsyscolumns c
INNER JOIN systypes t ON c.xtype = t.xtype and c.usertype = t.usertype
WHEREc.id = OBJECT_ID(@sTableName)
GO
SET QUOTED_IDENTIFIER OFF
GO
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
SET ANSI_NULLS ON
GO
CREATE FUNCTION dbo.fnTableHasPrimaryKey(@sTableName varchar(128))
RETURNS bit
AS
BEGIN
DECLARE @nTableID int,
@nIndexID int
SET @nTableID = OBJECT_ID(@sTableName)
SELECT @nIndexID = indid
FROM sysindexes
WHERE id = @nTableID
AND indid BETWEEN 1 And 254
AND (status & 2048) = 2048
IF @nIndexID IS NOT Null
RETURN 1
RETURN 0
END
GO
SET QUOTED_IDENTIFIER OFF
GO
SET ANSI_NULLS ON
GO
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在IT行业中，Web开发是至关重要的领域，而`jsp+sqlserver`的组合则常见于构建基于Java的Web应用程序，用于处理与数据库的交互。在这个项目中，开发者使用了Java Server Pages (JSP) 和 Microsoft SQL Server 数据库...
SQL Server 是一款由微软开发的关系型数据库管理系统，以其强大的数据处理能力和广泛的应用场景而闻名。在本文中，我们将深入探讨SQL Server的特点、发展历程、软硬件环境要求，以及SQL Server 2000的安装步骤。 ...
书中涵盖了SQL Server 2005的各个方面，旨在帮助读者全面掌握其核心功能和高级特性，提升数据库设计、开发和管理的能力。 1. **SQL Server 2005架构与安装** SQL Server 2005采用了多层架构，包括客户端、网络库、...
《SQL Server 2008宝典》是一本详尽阐述SQL Server 2008数据库管理和开发的权威书籍，其附带的源代码集合为读者提供了丰富的实践案例，帮助理解并掌握SQL语言的精髓。这个压缩包包含了书中提到的所有实例代码，是...
SQL Server 2000是微软公司推出的一款关系型数据库管理系统，它在20世纪末至21世纪初广泛应用于企业级数据存储和管理。作为初学者，了解SQL Server 2000的基础知识和系统管理是至关重要的。以下是一些关键概念和实践...
在本系统中，SQLServer2000作为后台数据库，负责存储和管理大量的客户信息，确保数据的安全和可靠。 MIDAS（Middleware for Data Sharing）是Delphi提供的一种分布式数据共享技术，它允许应用程序通过网络共享数据...
### SqlServer数据库性能优化详解 #### 一、性能优化的重要性 在现代企业的信息化建设中，数据库作为信息系统的核心组件，其性能直接影响着应用系统的整体表现。性能优化的目标是通过减少网络流量、磁盘I/O操作...
### SQL Server 优化知识点 #### 一、SQL性能优化技巧 **1.1 查询的模糊匹配** - **问题描述**：使用 `LIKE '%parm1%'` 的查询方式会导致索引失效，降低查询效率。 - **解决方案**： - **前端改进**：改变用户...
在SQL Server 2017的学习中，我们首先需要了解SQL Server的基础操作，这包括了基本的增删改查操作，比如INSERT、DELETE、UPDATE和SELECT。这些是数据库管理中最常用的操作，用于处理数据的存取和修改。 接着，我们...
SQL Server的安全模型是确保数据库系统安全的关键组成部分，它设计了一个多层防护机制，以保护数据免受未经授权的访问。在SQL Server中，安全模型主要涉及三个层次：登录验证、数据库用户管理和权限授权。 1. 登录...
3. **T-SQL编程**：书中会深入讲解Transact-SQL（T-SQL）的高级用法，包括存储过程、触发器、函数、视图和事务管理等，这些都是数据库开发的核心内容。 4. **性能优化**：SQL Server 2005提供了一系列工具和技巧来...
在本文中，我们将探讨如何使用ASP.NET 2.0和SQL Server 2005构建多层应用程序，以及这两个技术在构建这种架构时的新特性。多层架构是一种常见的软件设计模式，它将应用程序分解为表示层、业务逻辑层和数据访问层，...