Forrards Blog

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How to convert to Base64 and backwards via T-SQL

I want to share my way to convert a string to Base64 and back. Let me note that presented method is not the fastest, but it has one important advantage - it works OOB, without CLR functions. We need a test database and a table to use as an example:

Forrards
March 18, 2023
Performance and using of VARCHAR boxes as filters in SSRS reports

Very few people have thought about this performance killer. It is all about report parameter of text type.The initial situationThere was a table with about 45 million rows. Some columns in the table were VARCHAR and should have been filtered. As a result of filtering by 10 different parameters the total number of rows could have been significantly reduced. SQL Server was going for table scan in this case. Also there was a number of indexes defined on the table.

Forrards
March 18, 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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