【www.bbyears.com--班主任工作案例】
最近遇到这样一个案例，需要修改所有SQL Server的Database Mail的SMTP，原来的SMTP为10.xxx.xxx.xxx, 现在需要修改为192.168.xxx.xxx， 另外需要规范邮件地址，以前这类邮件ServerName@yoursqldba.com的后缀需要修改为ServerName@xxxx.com(信息做了脱敏处理)。
如果使用SSMS客户端的UI界面去修改的话， 那么多服务器一台一台去修改，不仅费时费力，而且枯燥无聊。只能使用脚本，一旦写好一个脚本，而后使用Multiple Server Query Execution（极力推荐使用这个管理、维护数据库），执行一次脚本，全部搞定。剩下的时间你可以喝喝茶、学习下新知识！
DECLARE@EmailAccount sysname;
DECLARE@SmtpServer sysname;
DECLARE@EmailAddress NVARCHAR(120);
DECLARE@EmailSuffix NVARCHAR(32);
DECLARE@NewEamilAddress NVARCHAR(120);
--DECLARE @ActualEmailSuffix NVARCHAR(32)="xxxx.com"; SQL Server 2005不支持此功能，会报Cannot assign a default value to a local variable.
DECLARE@ActualEmailSuffix NVARCHAR(32);
DECLARE@ActualSmtpServer sysname;
SET@ActualEmailSuffix="xxx.com";
SET@ActualSmtpServer="192.168.xxx.xxx";
DECLAREEmailAccount_CursorCURSORFAST_FORWARD
FOR
SELECTsa.[name]
,ss.[servername]
,sa.email_address
FROM[msdb].[dbo].[sysmail_server] ss
INNERJOIN[msdb].[dbo].[sysmail_account] sa
ONss.[account_id]=sa.[account_id];
OPENEmailAccount_Cursor;
FETCHNEXTFROMEmailAccount_CursorINTO@EmailAccount, @SmtpServer,@EmailAddress;
WHILE @@FETCH_STATUS = 0
BEGIN
IF LTRIM(RTRIM(@SmtpServer))!=@ActualSmtpServer
BEGIN
EXECUTEmsdb.dbo.sysmail_update_account_sp
@account_name = @EmailAccount
,@mailserver_name=@ActualSmtpServer;
PRINT @SmtpServer;
PRINT @EmailAccount;
END;
SET@EmailSuffix=SUBSTRING(@EmailAddress,CHARINDEX("@",@EmailAddress)+1, LEN(@EmailAddress) -CHARINDEX("@",@EmailAddress))
IF @EmailSuffix!=@ActualEmailSuffix
BEGIN
SET@NewEamilAddress=REPLACE(@EmailAddress,@EmailSuffix,@ActualEmailSuffix);
EXECUTEmsdb.dbo.sysmail_update_account_sp
@account_name = @EmailAccount
,@email_address=@NewEamilAddress
,@mailserver_name=@SmtpServer;
PRINT @EmailAccount;
PRINT @NewEamilAddress;
END;
FETCHNEXTFROMEmailAccount_CursorINTO@EmailAccount, @SmtpServer,@EmailAddress;
END
CLOSEEmailAccount_Cursor;
DEALLOCATEEmailAccount_Cursor;