Stairway to T-SQL: Beyond The Basics Level 7: Controlling the Flow of Your T-SQL
When you are writing TSQL code there are times when you want to perform the same logic over and over again. To accomplish this you can used the WHILE keyword. There are other times when you want to perform a conditional test and depending on the results of the test you execute one code block for the TRUE condition and possibly a different code block when the condition is FALSE. When you need to conditionally execute code based on the outcome of a condition you can used the IF keyword. In this Stairway level I will be discussing how to use the WHILE and IF constructs to control the flow of your TSQL code.
What you need for a Multi Subnet Configuration for AlwaysOn in SQL Server 2012
You have a new project that requires a primary database server in one building and secondary database server in another building to be configured as a Failover Cluster. What are the important points to consider for this scenario?
Data Mining Introduction Part 10: Microsoft Logistic Regression
This is an introduction to the SQL Server Microsoft Logistic Regression Data Mining Algorithm.
Data Mining Introduction Part 10: Microsoft Logistic Regression
This is an introduction to the SQL Server Microsoft Logistic Regression Data Mining Algorithm.
How to Make Scalar UDFs Run Faster (SQL Spackle)
It's a well known fact that Scalar UDFs are the stuff of performance nightmares in T-SQL. But are they really as bad as they say? SQL Server MVP Jeff Moden shows us that they might not really be as big a problem as you might think and what you can do when they actually are.
Differences In Native Compiled Procedures Execution Plans
All the wonderful functionality that in-memory tables and natively compiled procedures provide in SQL Server 2014 is pretty cool. But, changes to core of the engine results in changes in things that we may have developed a level of comfort with. Grant Fritchey explains.
Apology for today's article
We'd like to apologize to Gavin Draper who was plagiarized in an article published today.
Bad Meetings or Meeting Badly
Meetings are a part of modern corporate work that many of us despise. However is that because
Blogs
Track SQL Server Configuration Changes Using the Error Log
By SQLPals
Track SQL Server Configuration Changes Using the Error Log If you...
Data Engineering Books Worth Having on Your Shelf (or your tablet)
Good documentation gets you started. Good books get you deep. After years of working...
SSMS Evaluation – future ready
By Vinay Thakur
In previous posts, we looked at the SQL Server engine. for us DBAs, the...
Forums
SQL Server Showing Out of Space But Plenty of Drive Space
We have a SQL Server installed. We have a 500GB drive for the database....
Creating a JSON Document IV
Comments posted to this topic are about the item Creating a JSON Document IV
Restoring Azure Key Vault Keys and Validating SQL Server TDE Recovery: Level 7 of the Stairway to TDE
By VishnuGupthanSQLPowershellDBA
Comments posted to this topic are about the item Restoring Azure Key Vault Keys...
Question of the Day
Creating a JSON Document IV
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 YearEstablished, json_objectagg(city : TeamName) FROM dbo.NFLTeams GROUP BY YearEstablished;See possible answers