教你轻松掌握SQL Server错误信息的格式-Mysql Tutorial-php.cn

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教你轻松掌握SQL Server错误信息的格式

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Jun 07, 2016 pm 03:04 PM

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所有 Microsoft SQL Server 2000 组件都可以向应用程序发出信息、警告或错误信息。返回到应用程序的大多数 SQL Server 信息都包含如下部分： ◆ 错误号用来标识该消息的一到五位的数字。用户定义消息的错误号可以包含多个位。 ◆描述 Unicode 字符

　　所有 Microsoft® SQL Server™ 2000 组件都可以向应用程序发出信息、警告或错误信息。返回到应用程序的大多数 SQL Server 信息都包含如下部分：

　　◆错误号

　　用来标识该消息的一到五位的数字。用户定义消息的错误号可以包含多个位。

　　◆描述

　　Unicode 字符串，包含有关生成消息的条件的信息。

　　◆严重级别

　　表明错误条件严重程度的一个一位或两位的数字。

　　◆状态

　　一个一位到三位的数字，最大值为 127，向 Microsoft 支持工程师和开发人员表明该消息在 SQL Server 代码中生成的位置：

　　◆行号

　　批处理或存储过程(包含生成消息的语句)中的一个数字。行号也可以包含在所执行的存储过程文本中。

　　多数 SQL Server 消息的错误号、描述和严重级别都存储在 master.dbo.sysmessages 中，状态和行号是由发出消息的代码动态生成的。

　　在客户 Net-Library、用于 SQL Server 的 Microsoft OLE DB 提供程序或 SQL Server ODBC 驱动程序中产生的消息不包含其中的一些消息组成部分。

　　要想看到错误信息的示例，请执行下列语句：

以下是引用片段：
SELECT * FROM ThisObjectDoesNotExist

　　此语句产生的错误具有以下这些部分：

　　错误号：208

　　严重级别：16

　　状态：1

　　行：1

　　描述：对象名 'ThisObjectDoesNotExist' 无效。

　　应用程序用来访问 SQL Server 的所有数据 API 均返回错误号和描述。并非所有 API 都返回严重级别、状态或行号。只有编写 OLE DB 或 ODBC 应用程序时使用了由用于 SQL Server 的 Microsoft OLE DB 提供程序和 SQL Server ODBC 驱动程序表现的 SQL Server 特定的诊断功能，用于 SQL Server 的 Microsoft OLE DB 提供程序和 SQL Server ODBC 驱动程序才会返回这些部分。

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