Forrards Blog

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Data corruption in SQL Server 2012 and 2014 when rebuilding indexes online

When I hear the discussion about causes of data corruption in SQL Server, I always mention bugs in the operating system and the software itself. Fortunately, the last mentioned reason is an extremely rare case, but people are bound to make mistakes and SQL Server is also developed by humans. One such case occurred recently.

Forrads
March 30, 2023
Monitoring of free space in database files

Monitoring of the size of database files is one of the important DBA tasks and this process should be automated. This article will show you how you can achieve this. Why is it important? Most likely you keep an eye of the size of the database and its files to make sure they don`t exceed the size of the hard drive. But do you track the amount of free space inside the databases files? For example you may have a 100GB database with one data file which is 95Gb and log file of 5Gb. But how much space is free in the file itself? Out of those 95Gb it may be that only 5Gb are filled with the data or may be already 94Gb are used. In the last case your database file may grow soon. To be able to predict such situation and prepare to it in advance let`s setup monitoring.

Forrards
March 30, 2023
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Creating Clustered Index on a Table Variable column in MS SQL Server

If you need to create an index in order to improve performance of the queries running against table variable (@temptable) In MS SQL Server you can implicitly create a clustered index on a table variable by defining a primary key or unique constraint, however, it is generally more efficient to use a temporary table. Anyway let`s move on with an option of creating index on a table variable. For example, you need create simple table variable:

Forrards
March 18, 2023
Define SQL Server database permissions for development team

The dba routine includes developer's accounts management. Such as creating sql logins for new developers. There is usually a standard permissions list and database environment for code writing and testing. Let`s try to simplify the process.

Forrards
March 18, 2023

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