Introducing the MySQL SELECT statement
Use SELECT statements to query a MySQL database. In this article, Robert Sheldon explains how.
2022-09-07
Articles
The "Numbers" or "Tally" Table: What it is and how it replaces a loop
Many people have used a "Numbers" or "Tally" table without really knowing what it does. This is an introduction as to how a Tally table replaces a loop.
2022-09-05 (first published: 2008-05-07)
156,785 reads
Managing Datasets for Database Development Work using Flyway
A generic way of exporting, deleting and loading data, for database development work. It uses Flyway Teams, a PowerShell framework, JSON files for storage and a table manifest to define the correct order of dependency for each task. It should help a team maintain datasets between database versions, as well as to switch between the datasets required to support different types of testing.
2022-09-05
Metadata Functions in SQL Server and Their Use Cases
Learn about various SQL Server system functions to return meta data from SQL Server such as SERVERPROPERTY, DATABASEPROPERTYEX, DB_NAME, DB_ID, FILE_NAME, FILE_ID, FILE_IDEX, SCHEMA_NAME, SCHEMA_ID, OBJECT_NAME, OBJECT_ID and STATS_DATE.
2022-09-05
SQL WAITFOR Command to Delay SQL Code Execution
In this article, we look at the SQL Server WAITFOR command to allow delays in processing either for a specified time or a set amount of time.
2022-09-02
The Uses of Dependency Information in Database Development
Dependency information will allow you to avoid errors during a database build or tear-down, by ensuring you create or remove objects in the right order. It will also help you to avoid future 'invalid object' errors, because it will allow you to check that no database alterations have introduced broken references, during Flyway migrations.
2022-09-02
T-SQL Language Changes in SQL Server 2022
SQL Server 2022 is in preview in August 2022. I assume this version will be released later this year, and I have been testing it with the idea that I will be looking at an upgrade sometime in the next year for a few servers. There are a lot of changes in the database platform, […]
2022-08-31
27,777 reads
Estimated and Actual Plans Can Have Different Shapes.
Hi Brent, What is your take on Hugo Kornelis’s explanation of execution plan naming. As her his explanation, estimated exec plan is simply an execution plan whereas actual execution plan = execution plan+run-time stats. Do you agree that the naming is flawed and confusing? – Yourbiggestfan
2022-08-31
How to use fn_builtin_permissions SQL Server Security Function
Learn how to find all securable objects in SQL Server and the permissions for each securable object using the system function fn_builtin_permissions.
2022-08-31
Understanding the Metadata Function DATABASEPROPERTYEX()
Learn how to use the DatabasePropertyEX() function to query your database for settings.
2022-08-29
2,199 reads
Blogs
RANK() vs DENSE_RANK(): #SQLNewBlogger
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Are you getting value from your reporting?
By ChrisJenkins
Do you spend so long manipulating your data into something vaguely useful that you...
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Creating JSON II
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Question of the Day
Creating JSON II
On SQL Server 2025, what happens when I run this code:
SELECT JSON_OBJECTAGG( N'City':N'Denver' RETURNING JSON) GOSee possible answers