SSIS event handlers are the simplest means of turning an SSIS script into a reliable system that is auditable, reacts appropriately to error conditions, reports progress and allows instrumentation and monitoring your SSIS packages. They are easy to implement, and provide a great deal of flexibility. Rob Sheldon once again provides the easy, clear introduction.
2011-04-29
4,017 reads
The most persistent struggle in data processing has been to ensure clean data. There are many ways that data can be incorrect and a database must check, as best it can, that the data is correct. The CHECK constraint is ideally suited for this sort of work, and the checking routine can become quite complex when dealing with check digits in data.
2011-04-28
3,328 reads
This article examines the difference between adding a nullable column to a table or a column with a default value.
2011-04-27
5,393 reads
In the second part of the Resource Monitor series we conclude with a look using the Memory tab and Disk tab to diagnose performance issues.
2011-04-26
4,198 reads
One of the most important responsibilities of a database administrator is to make sure that all the databases are backed up across environments managed by them. In my earlier article titled Importance of Database Backups and Recovery Plan I discussed the importance of a good database backup and recovery plan for all the user and system databases. In this article we will take a look at the steps which a database administrator needs to follow to backup and restore an analysis services database.
2011-04-25
3,172 reads
'Split, Sort & Collapse' is, happily, not a description of the intrepid Fabiano Amorim after his epic series of articles about the ShowPlan operators. With renewed stamina, Fabiano continues his mission to describe all the major operators by explaining the Trivial Plan and the power of unique indices.
2011-04-22
3,882 reads
Whilst getting some courseware ready I was playing around writing some code and I decided to very simply show when a window starts and ends based on you asking for a TumblingWindow of n time units in StreamInsight. I thought this was going to be a two second thing but what I found was something I haven’t yet found documented anywhere until now.
2011-04-21
2,346 reads
This article demonstrates how a DBA can check for policy compliance by leveraging the Policy Based Management Feature of SQL Server.
2011-04-20
2,820 reads
Windows Resource Monitor can be a very useful tool for initial diagnosis of performance issues. In this two part series we look at how to troubleshoot performance issues using Resource Monitor.
2011-04-19
3,686 reads
Whenever rows or columns are deleted from a table, SQL Server reuses space to accommodate new data. However, this is not the case when a variable length column is deleted. The space used by this type of column is not reclaimed automatically. Variable length columns can be of data types varchar, nvarchar, varchar(max), nvarchar(max), varbinary, varbinary(max), text, ntext, image, sql_variant, and xml. In this tip, I have tried to put forth a solution to reclaim this space and this should work for SQL 2005 and later versions.
2011-04-18
3,911 reads
By Vinay Thakur
These days everything is changing to AI World, IT roles are getting changed and...
PlanTrace: Stop Reading Redshift EXPLAIN Plans. Start Seeing Them Introducing PlanTrace — a free, browser-based...
By Steve Jones
I went to sleep while reading a Kindle book on my phone. I know...
We suffered a SPAM attack from May 1-6, which unfortunately corresponded with time off...
Hi to all We have situation at a client where someone is illegally changing...
Hi to all We have situation at a client where someone is illegally changing...
I have this data in a table called dbo.NFLTeams
TeamID TeamName City YearEstablished ------ -------- ---- --------------- 1 Cowboys Dallas 1960 2 Eagles Philadelphia 1933 3 Packers Green Bay 1919 4 Chiefs Kansas City 1960 5 49ers San Francisco 1946 6 Broncos Denver 1960 7 Seahawks Seattle 1976 8 Patriots New England 1960If I run this code, how many rows are returned?
SELECT TOP 2
json_objectagg('Team' : TeamName)
FROM dbo.NFLTeams;
See possible answers