/*============================================================================
  File:     4b_Adding_Agent_Alerts.sql

  Summary:  This script will add important SQL Agent Alerts to your instance

  Date:     April 2018

  SQL Server Version: 2005/2008/2008R2/2012/2014/2016/2017
------------------------------------------------------------------------------
  Written by Glenn Berry, SQLskills.com
  http://www.sqlskills.com/blogs/glenn/creating-sql-server-agent-alerts-for-critical-errors/

  For more scripts and other useful content, go to:
	http://www.SQLskills.com

  This script is intended only as a supplement to demos and lectures
  given by Erin Stellato.  
  
  THIS CODE AND INFORMATION ARE PROVIDED "AS IS" WITHOUT WARRANTY OF 
  ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED 
  TO THE IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A
  PARTICULAR PURPOSE.
============================================================================*/


/*
	Change the @OperatorName as needed
*/

USE [msdb];
GO

SET NOCOUNT ON;

-- Change @OperatorName as needed
DECLARE @OperatorName sysname = N'SQLDBAGroup';

-- Change @CategoryName as needed
DECLARE @CategoryName sysname = N'SQL Server Agent Alerts';

-- Make sure you have an Agent Operator defined that matches the name you supplied
IF NOT EXISTS(SELECT * FROM msdb.dbo.sysoperators WHERE name = @OperatorName)
	BEGIN
		RAISERROR ('There is no SQL Operator with a name of %s' , 18 , 16 , @OperatorName);
		RETURN;
	END

-- Add Alert Category if it does not exist
IF NOT EXISTS (SELECT *
               FROM msdb.dbo.syscategories
               WHERE category_class = 2  -- ALERT
			   AND category_type = 3
               AND name = @CategoryName)
	BEGIN
		EXEC dbo.sp_add_category @class = N'ALERT', @type = N'NONE', @name = @CategoryName;
	END

-- Get the server name
DECLARE @ServerName sysname = (SELECT @@SERVERNAME);


-- Alert Names start with the name of the server 
DECLARE @Sev19AlertName sysname = @ServerName + N' Alert - Sev 19 Error: Fatal Error in Resource';
DECLARE @Sev20AlertName sysname = @ServerName + N' Alert - Sev 20 Error: Fatal Error in Current Process';
DECLARE @Sev21AlertName sysname = @ServerName + N' Alert - Sev 21 Error: Fatal Error in Database Process';
DECLARE @Sev22AlertName sysname = @ServerName + N' Alert - Sev 22 Error: Fatal Error: Table Integrity Suspect';
DECLARE @Sev23AlertName sysname = @ServerName + N' Alert - Sev 23 Error: Fatal Error Database Integrity Suspect';
DECLARE @Sev24AlertName sysname = @ServerName + N' Alert - Sev 24 Error: Fatal Hardware Error';
DECLARE @Sev25AlertName sysname = @ServerName + N' Alert - Sev 25 Error: Fatal Error';
DECLARE @Error823AlertName sysname = @ServerName + N' Alert - Error 823: The operating system returned an error';
DECLARE @Error824AlertName sysname = @ServerName + N' Alert - Error 824: Logical consistency-based I/O error';
DECLARE @Error825AlertName sysname = @ServerName + N' Alert - Error 825: Read-Retry Required';
DECLARE @Error832AlertName sysname = @ServerName + N' Alert - Error 832: Constant page has changed';
DECLARE @Error855AlertName sysname = @ServerName + N' Alert - Error 855: Uncorrectable hardware memory corruption detected';
DECLARE @Error856AlertName sysname = @ServerName + N' Alert - Error 856: SQL Server has detected hardware memory corruption, but has recovered the page';



-- Sev 19 Error: Fatal Error in Resource
IF NOT EXISTS (SELECT name FROM msdb.dbo.sysalerts WHERE name = @Sev19AlertName)
	EXEC msdb.dbo.sp_add_alert @name = @Sev19AlertName, 
				  @message_id = 0, @severity = 19, @enabled = 1, 
				  @delay_between_responses = 900, @include_event_description_in = 1,
				  @category_name = @CategoryName, 
				  @job_id = N'00000000-0000-0000-0000-000000000000';

-- Add a notification if it does not exist
IF NOT EXISTS(SELECT *
		      FROM dbo.sysalerts AS sa
              INNER JOIN dbo.sysnotifications AS sn
              ON sa.id = sn.alert_id
              WHERE sa.name = @Sev19AlertName)
	BEGIN
		EXEC msdb.dbo.sp_add_notification @alert_name = @Sev19AlertName, @operator_name = @OperatorName, @notification_method = 1;
	END


-- Sev 20 Error: Fatal Error in Current Process
IF NOT EXISTS (SELECT name FROM msdb.dbo.sysalerts WHERE name = @Sev20AlertName)
	EXEC msdb.dbo.sp_add_alert @name = @Sev20AlertName, 
				  @message_id = 0, @severity = 20, @enabled = 1, 
				  @delay_between_responses = 900, @include_event_description_in = 1,
				  @category_name = @CategoryName, 
				  @job_id = N'00000000-0000-0000-0000-000000000000'

-- Add a notification if it does not exist
IF NOT EXISTS(SELECT *
		      FROM dbo.sysalerts AS sa
              INNER JOIN dbo.sysnotifications AS sn
              ON sa.id = sn.alert_id
              WHERE sa.name = @Sev20AlertName)
	BEGIN
		EXEC msdb.dbo.sp_add_notification @alert_name = @Sev20AlertName, @operator_name = @OperatorName, @notification_method = 1;
	END


-- Sev 21 Error: Fatal Error in Database Process
IF NOT EXISTS (SELECT name FROM msdb.dbo.sysalerts WHERE name = @Sev21AlertName)
	EXEC msdb.dbo.sp_add_alert @name = @Sev21AlertName, 
				  @message_id = 0, @severity = 21, @enabled = 1, 
				  @delay_between_responses = 900, @include_event_description_in = 1,
				  @category_name = @CategoryName, 
				  @job_id = N'00000000-0000-0000-0000-000000000000';

-- Add a notification if it does not exist
IF NOT EXISTS(SELECT *
		      FROM dbo.sysalerts AS sa
              INNER JOIN dbo.sysnotifications AS sn
              ON sa.id = sn.alert_id
              WHERE sa.name = @Sev21AlertName)
	BEGIN
		EXEC msdb.dbo.sp_add_notification @alert_name = @Sev21AlertName, @operator_name = @OperatorName, @notification_method = 1;
	END


-- Sev 22 Error: Fatal Error Table Integrity Suspect
IF NOT EXISTS (SELECT name FROM msdb.dbo.sysalerts WHERE name = @Sev22AlertName)
	EXEC msdb.dbo.sp_add_alert @name = @Sev22AlertName, 
				  @message_id = 0, @severity = 22, @enabled = 1, 
				  @delay_between_responses = 900, @include_event_description_in = 1,
				  @category_name = @CategoryName, 
				  @job_id = N'00000000-0000-0000-0000-000000000000';

-- Add a notification if it does not exist
IF NOT EXISTS(SELECT *
		      FROM dbo.sysalerts AS sa
              INNER JOIN dbo.sysnotifications AS sn
              ON sa.id = sn.alert_id
              WHERE sa.name = @Sev22AlertName)
	BEGIN
		EXEC msdb.dbo.sp_add_notification @alert_name = @Sev22AlertName, @operator_name = @OperatorName, @notification_method = 1;
	END


-- Sev 23 Error: Fatal Error Database Integrity Suspect
IF NOT EXISTS (SELECT name FROM msdb.dbo.sysalerts WHERE name = @Sev23AlertName)
	EXEC msdb.dbo.sp_add_alert @name = @Sev23AlertName, 
				  @message_id = 0, @severity = 23, @enabled = 1, 
				  @delay_between_responses = 900, @include_event_description_in = 1,
				  @category_name = @CategoryName, 
				  @job_id = N'00000000-0000-0000-0000-000000000000';

-- Add a notification if it does not exist
IF NOT EXISTS(SELECT *
		      FROM dbo.sysalerts AS sa
              INNER JOIN dbo.sysnotifications AS sn
              ON sa.id = sn.alert_id
              WHERE sa.name = @Sev23AlertName)
	BEGIN
		EXEC msdb.dbo.sp_add_notification @alert_name = @Sev23AlertName, @operator_name = @OperatorName, @notification_method = 1;
	END


-- Sev 24 Error: Fatal Hardware Error
IF NOT EXISTS (SELECT name FROM msdb.dbo.sysalerts WHERE name = @Sev24AlertName)
	EXEC msdb.dbo.sp_add_alert @name = @Sev24AlertName, 
				  @message_id = 0, @severity = 24, @enabled = 1, 
				  @delay_between_responses = 900, @include_event_description_in = 1,
				  @category_name = @CategoryName, 
				  @job_id = N'00000000-0000-0000-0000-000000000000';

-- Add a notification if it does not exist
IF NOT EXISTS(SELECT *
		      FROM dbo.sysalerts AS sa
              INNER JOIN dbo.sysnotifications AS sn
              ON sa.id = sn.alert_id
              WHERE sa.name = @Sev24AlertName)
	BEGIN
		EXEC msdb.dbo.sp_add_notification @alert_name = @Sev24AlertName, @operator_name = @OperatorName, @notification_method = 1;
	END


-- Sev 25 Error: Fatal Error
IF NOT EXISTS (SELECT name FROM msdb.dbo.sysalerts WHERE name = @Sev25AlertName)
	EXEC msdb.dbo.sp_add_alert @name = @Sev25AlertName, 
				  @message_id = 0, @severity = 25, @enabled = 1, 
				  @delay_between_responses = 900, @include_event_description_in = 1, 
				  @category_name = @CategoryName,
				  @job_id = N'00000000-0000-0000-0000-000000000000';

-- Add a notification if it does not exist
IF NOT EXISTS(SELECT *
		      FROM dbo.sysalerts AS sa
              INNER JOIN dbo.sysnotifications AS sn
              ON sa.id = sn.alert_id
              WHERE sa.name = @Sev25AlertName)
	BEGIN
		EXEC msdb.dbo.sp_add_notification @alert_name = @Sev25AlertName, @operator_name = @OperatorName, @notification_method = 1;
	END

-- Error 823 Alert added on 8/11/2014

-- Error 823: Operating System Error
-- How to troubleshoot a Msg 823 error in SQL Server	
-- http://support.microsoft.com/kb/2015755
IF NOT EXISTS (SELECT name FROM msdb.dbo.sysalerts WHERE name = @Error823AlertName)
	EXEC msdb.dbo.sp_add_alert @name = @Error823AlertName, 
				  @message_id = 823, @severity = 0, @enabled = 1, 
				  @delay_between_responses = 900, @include_event_description_in = 1, 
				  @category_name = @CategoryName, 
				  @job_id  = N'00000000-0000-0000-0000-000000000000';


-- Add a notification if it does not exist
IF NOT EXISTS(SELECT *
		      FROM dbo.sysalerts AS sa
              INNER JOIN dbo.sysnotifications AS sn
              ON sa.id = sn.alert_id
              WHERE sa.name = @Error823AlertName)
	BEGIN
		EXEC msdb.dbo.sp_add_notification @alert_name = @Error823AlertName, @operator_name = @OperatorName, @notification_method = 1;
	END
	
-- Error 824 Alert added on 8/11/2014

-- Error 824: Logical consistency-based I/O error
-- How to troubleshoot Msg 824 in SQL Server
-- http://support.microsoft.com/kb/2015756
IF NOT EXISTS (SELECT name FROM msdb.dbo.sysalerts WHERE name = @Error824AlertName)
	EXEC msdb.dbo.sp_add_alert @name = @Error824AlertName, 
				  @message_id = 824, @severity = 0, @enabled = 1, 
				  @delay_between_responses = 900, @include_event_description_in = 1, 
				  @category_name = @CategoryName, 
				  @job_id  = N'00000000-0000-0000-0000-000000000000';


-- Add a notification if it does not exist
IF NOT EXISTS(SELECT *
		      FROM dbo.sysalerts AS sa
              INNER JOIN dbo.sysnotifications AS sn
              ON sa.id = sn.alert_id
              WHERE sa.name = @Error824AlertName)
	BEGIN
		EXEC msdb.dbo.sp_add_notification @alert_name = @Error824AlertName, @operator_name = @OperatorName, @notification_method = 1;
	END


-- Error 825: Read-Retry Required
-- How to troubleshoot Msg 825 (read retry) in SQL Server
-- http://support.microsoft.com/kb/2015757
IF NOT EXISTS (SELECT name FROM msdb.dbo.sysalerts WHERE name = @Error825AlertName)
	EXEC msdb.dbo.sp_add_alert @name = @Error825AlertName, 
				  @message_id = 825, @severity = 0, @enabled = 1, 
				  @delay_between_responses = 900, @include_event_description_in = 1, 
				  @category_name = @CategoryName, 
				  @job_id  =N'00000000-0000-0000-0000-000000000000';


-- Add a notification if it does not exist
IF NOT EXISTS(SELECT *
		      FROM dbo.sysalerts AS sa
              INNER JOIN dbo.sysnotifications AS sn
              ON sa.id = sn.alert_id
              WHERE sa.name = @Error825AlertName)
	BEGIN
		EXEC msdb.dbo.sp_add_notification @alert_name = @Error825AlertName, @operator_name = @OperatorName, @notification_method = 1;
	END

-- Error 832 Alert added on 10/30/2013

-- Error 832: Constant page has changed
-- http://www.sqlskills.com/blogs/paul/dont-confuse-error-823-and-error-832/
-- http://support.microsoft.com/kb/2015759
IF NOT EXISTS (SELECT name FROM msdb.dbo.sysalerts WHERE name = @Error832AlertName)
	EXEC msdb.dbo.sp_add_alert @name = @Error832AlertName, 
				  @message_id = 832, @severity = 0, @enabled = 1, 
				  @delay_between_responses = 900, @include_event_description_in = 1, 
				  @category_name = @CategoryName, 
				  @job_id  = N'00000000-0000-0000-0000-000000000000';


-- Add a notification if it does not exist
IF NOT EXISTS(SELECT *
		      FROM dbo.sysalerts AS sa
              INNER JOIN dbo.sysnotifications AS sn
              ON sa.id = sn.alert_id
              WHERE sa.name = @Error832AlertName)
	BEGIN
		EXEC msdb.dbo.sp_add_notification @alert_name = @Error832AlertName, @operator_name = @OperatorName, @notification_method = 1;
	END


-- Memory Error Correction alerts added on 10/30/2013

-- Mitigation of RAM Hardware Errors	 		
-- When SQL Server 2012 Enterprise Edition is installed on a Windows 2012 operating system with hardware that supports bad memory diagnostics, 
-- you will notice new error messages like 854, 855, and 856 instead of the 832 errors that LazyWriter usually generates.
-- Error 854 is just informing you that your instance supports memory error correction

-- Using SQL Server in Windows 8 and Windows Server 2012 environments
-- http://support.microsoft.com/kb/2681562


-- Check for SQL Server 2012 or greater and Enterprise Edition
-- You also need Windows Server 2012 or greater, plus hardware that supports memory error correction
IF LEFT(CONVERT(CHAR(2),SERVERPROPERTY('ProductVersion')), 2) >= '11' AND SERVERPROPERTY('EngineEdition') = 3
    BEGIN
        -- Error 855: Uncorrectable hardware memory corruption detected
		IF NOT EXISTS (SELECT name FROM msdb.dbo.sysalerts WHERE name = @Error855AlertName)
			EXEC msdb.dbo.sp_add_alert @name = @Error855AlertName, 
						  @message_id = 855, @severity = 0, @enabled = 1, 
						  @delay_between_responses = 900, @include_event_description_in = 1, 
						  @category_name = @CategoryName, 
						  @job_id  = N'00000000-0000-0000-0000-000000000000';


		-- Add a notification if it does not exist
		IF NOT EXISTS(SELECT *
					  FROM dbo.sysalerts AS sa
					  INNER JOIN dbo.sysnotifications AS sn
					  ON sa.id = sn.alert_id
					  WHERE sa.name = @Error855AlertName)
			BEGIN
				EXEC msdb.dbo.sp_add_notification @alert_name = @Error855AlertName, @operator_name = @OperatorName, @notification_method = 1;
			END

		-- Error 856: SQL Server has detected hardware memory corruption, but has recovered the page
		IF NOT EXISTS (SELECT name FROM msdb.dbo.sysalerts WHERE name = @Error856AlertName)
			EXEC msdb.dbo.sp_add_alert @name = @Error856AlertName, 
						  @message_id = 856, @severity = 0, @enabled = 1, 
						  @delay_between_responses = 900, @include_event_description_in = 1, 
						  @category_name = @CategoryName, 
						  @job_id  = N'00000000-0000-0000-0000-000000000000';


		-- Add a notification if it does not exist
		IF NOT EXISTS(SELECT *
					  FROM dbo.sysalerts AS sa
					  INNER JOIN dbo.sysnotifications AS sn
					  ON sa.id = sn.alert_id
					  WHERE sa.name = @Error856AlertName)
			BEGIN
				EXEC msdb.dbo.sp_add_notification @alert_name = @Error856AlertName, @operator_name = @OperatorName, @notification_method = 1;
			END
    END
GO





