如何修复将 sp_whoisactive 结果记录到表中的错误？

Question

有一个从这里建模的 sql 代理作业，它使用 sp_whoisactive 将结果捕获到表中。99% 它工作正常，但 sql 代理作业时不时会失败并出现以下错误：

Warning: Null value is eliminated by an aggregate or other SET operation. [SQLSTATE 01003] (Message 8153) Violation of PRIMARY KEY constraint 'PK__#ADDF8B9__69B13FDC8C10EA7F'. Cannot insert duplicate key in object 'dbo.@blockers'. The duplicate key value is (623). [SQLSTATE 23000] (Error 2627) The statement has been terminated. [SQLSTATE 01000] (Error 3621) Warning: Null value is eliminated by an aggregate or other SET operation. [SQLSTATE 01003] (Message 8153) Warning: Null value is eliminated by an aggregate or other SET operation. [SQLSTATE 01003] (Message 8153). The step failed.

这是表定义

USE [Maint]
GO

/****** Object:  Table [dbo].[WhoIsActive]    ******/
SET ANSI_NULLS ON
GO

SET QUOTED_IDENTIFIER ON
GO

CREATE TABLE [dbo].[WhoIsActive](
    [dd hh:mm:ss.mss] [varchar](8000) NULL,
    [session_id] [smallint] NOT NULL,
    [sql_text] [xml] NULL,
    [sql_command] [xml] NULL,
    [login_name] [nvarchar](128) NOT NULL,
    [wait_info] [nvarchar](4000) NULL,
    [tran_log_writes] [nvarchar](4000) NULL,
    [CPU] [varchar](30) NULL,
    [tempdb_allocations] [varchar](30) NULL,
    [tempdb_current] [varchar](30) NULL,
    [blocking_session_id] [smallint] NULL,
    [reads] [varchar](30) NULL,
    [writes] [varchar](30) NULL,
    [physical_reads] [varchar](30) NULL,
    [query_plan] [xml] NULL,
    [used_memory] [varchar](30) NULL,
    [status] [varchar](30) NOT NULL,
    [tran_start_time] [datetime] NULL,
    [open_tran_count] [varchar](30) NULL,
    [percent_complete] [varchar](30) NULL,
    [host_name] [nvarchar](128) NULL,
    [database_name] [nvarchar](128) NULL,
    [program_name] [nvarchar](128) NULL,
    [start_time] [datetime] NOT NULL,
    [login_time] [datetime] NULL,
    [request_id] [int] NULL,
    [collection_time] [datetime] NOT NULL
) ON [PRIMARY] TEXTIMAGE_ON [PRIMARY]
GO

是什么导致了这个错误？

sp_whoisactive 版本 = v11.11。

Answer 1

您必须下载 Adam Machanicsp_whoisactive存储过程的较新版本。

最好是 11.16 或更高版本：

版本 11.16 - 2016 年 10 月 18 日（仅限 Box 版本 2005-2017。不适用于 Azure PAAS。）

• 用于识别“特殊”数据库页面（例如 GAM、SGAM）的固定算法。谢谢，罗伯特·戴维斯！
• 修复了@blockers 重复键错误

在代码中，@blockers表变量的定义改为：

...
DECLARE @blockers TABLE
(
session_id INT NOT NULL PRIMARY KEY WITH (IGNORE_DUP_KEY = ON) /*<<== HERE!*/
);
...

然后，您可以修改现有代码。