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Showing posts from March, 2014

Email Alerts are not received...

In one of application, Email alerts are sent using SQL sp_send_dbmail stored procedure. Email alerts were working properly, but suddenly noticed email alerts are not received.

To troubleshoot the issue, first I checked the msdb.dbo.sysmail_event_log table using the below query.

SELECT log_id, event_type, log_date, description, process_id, mailitem_id, account_id, last_mod_date, last_mod_user
FROM
msdb.dbo.sysmail_event_log 
ORDER BY
log_date DESC

If there is any error, you should see records with the event_type value as error.
In my case there are records with event_type value as error, and the description value for those records is same as below

The mail could not be sent to the recipients because of the mail server failure. (Sending Mail using Account 3 (2018-02-01T10:41:27). Exception Message: Cannot send mails to mail server. (The SMTP server requires a secure connection or the client was not authenticated. The server response was: Authentication required).  )

As per the error descript…

Delete data using Partitions in SQL Server...

In a previous post I had explained how to partition SQL database tables. Actually we can use those partitions when we need to delete particular set of records from those large tables. Otherwise it will takes more time to delete those.
To create a stored procedure to truncate partition data, I reused a script in this link and applied some modification.
The added modifications are
Fixed the issue with joining the sys.partition_range_values for Right partitions Added the non-clustered index The below Stored Procedure uses to truncate partitions, created using the partition function from the previous post.
1:IFEXISTS (
2:SELECT *
3:FROM sys.objects
4:WHERE OBJECT_ID = OBJECT_ID(N'[SP_TruncatePartition]')
5:AND TYPE IN (N'P', N'PC')
6: )
7:DROPPROCEDURE [SP_TruncatePartition]
8:GO
9:
10:CREATEPROCEDURE [SP_TruncatePartition]
11: @tableName VARCHAR(255)
12: ,
13: @partitionValueString VARCHAR(8)
14: ,@partitionGranualirity VARCH…