Adding Column to a SQL Server Table
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
Additional Articles
Performance Troubleshooting with Windows Resource Monitor - Part 2
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
Backup and Restore of an Analysis Services Database
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
ShowPlan Operator of the Week - Split, Sort, Collapse
'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
When does a Tumbling Window Start in StreamInsight
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
Implementing Database Settings Using Policy Based Management
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
Performance Troubleshooting with Windows Resource Monitor
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
Clean unused space when a variable-length column is dropped from a SQL Server table or indexed view
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
SQL Transparent Hierarchical Processing of Relational, XML and IMS Data
The SQL-92 standard introduced the LEFT Outer Join operation which offers a powerful alternative to standard relational processing to perform full hierarchical processing naturally and inherently. This enables SQL to transparently integrate relational data with XML, IMS and other forms of legacy hierarchical data. This can also allow the so far overlooked integration of IMS and legacy data with the Internet and XML, and visa versa.
2011-04-15
3,437 reads
Read and Write Binary Files in SQL Server with CLR
You are a database developer looking for a common approach for handling read and write access to binary files. You may be a DBA wanting to read various information from binary files and collect it into tables. The code sample presented in this tip will get you started with binary file content handling in SQL Server.
2011-04-14
4,324 reads
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Not Just an Upgrade
Comments posted to this topic are about the item Not Just an Upgrade
Question of the Day
Restoring On Top I
I am doing development work on a database and want to keep a backup so I can reset my database. I make some changes and want to restore over top of my changes. When I run this code, what happens?
USE Master BACKUP DATABASE DNRTest TO DISK = 'dnrtest.bak' GO USE DNRTest GO CREATE TABLE MyTest(myid INT) GO USE master RESTORE DATABASE DNRTest FROM DISK = 'dnrtest.bak' WITH REPLACESee possible answers