IN vs UNION ALL
Watch this week’s episode on YouTube. When you need to filter query results on multiple values, you probably use an IN() statement or multiple predicates separated by ORs: or...
2019-05-13 (first published: 2019-04-30)
1,284 reads
Bert Wagner
IN vs UNION ALL
Watch this week's video on YouTube
When you need to filter query results on multiple values, you probably use an IN() statement or multiple predicates separated by ORs:
WHERE Col1 IN...
2019-04-30
2 reads
IN vs UNION ALL
Watch this week's video on YouTube
When you need to filter query results on multiple values, you probably use an IN() statement or multiple predicates separated by ORs:
WHERE Col1 IN...
2019-04-30
Correlated Subqueries vs Derived Tables
Correlated subqueries provide an intuitive syntax for writing queries that return related data. However, they often perform poorly due to needing to execute once for every value they join on....
2019-05-07 (first published: 2019-04-23)
1,693 reads
Correlated Subqueries vs Derived Tables
Watch this week's video on YouTube
Correlated subqueries provide an intuitive syntax for writing queries that return related data. However, they often perform poorly due to needing to execute once for...
2019-04-23
6 reads
Correlated Subqueries vs Derived Tables
Watch this week's video on YouTube
Correlated subqueries provide an intuitive syntax for writing queries that return related data. However, they often perform poorly due to needing to execute once for...
2019-04-23
6 reads
Window Functions vs GROUP BYs
There are many options available for improving the performance of a query: indexes, statistics, configuration settings, etc… However, not all environments allow you to use those features (eg. vendor...
2019-04-25 (first published: 2019-04-16)
1,226 reads
Window Functions vs GROUP BYs
Watch this week's video on YouTube
There are many options available for improving the performance of a query: indexes, statistics, configuration settings, etc...
However, not all environments allow you to use...
2019-04-16
3 reads
Window Functions vs GROUP BYs
Watch this week's video on YouTube
There are many options available for improving the performance of a query: indexes, statistics, configuration settings, etc...
However, not all environments allow you to use...
2019-04-16
3 reads
Data Type Precedence and Implicit Conversions
SQL Server needs to make sure data types match when performing operations that involve multiple pieces of data. When the data types do not match, SQL Server has to...
2019-04-22 (first published: 2019-04-09)
669 reads
Blogs
How to Run Databases on Kubernetes: An 8-Step Guide
In this step-by-step tutorial, learn how to run MySQL, PostgreSQL, MongoDB, and other stateful...
Episode 11 of Simple Talks: Oracle
By Steve Jones
The 11th episode is now live, recorded a few weeks ago at the PASS...
A New Word: Mornden
By Steve Jones
mornden – n. the self-container pajama universe shared by two people on a long...
Forums
What is the best index strategy for a table that gets truncated?
Hi everyone My SSIS package does a bulk insert of csv files into a...
Blob Storage automated downloads
Dipping my toes into the waters of Azure and of course before I get...
Announcing SQL Server 2025
Comments posted to this topic are about the item Announcing SQL Server 2025
Question of the Day
Running Steve's Code
Can you run this code in any of your SQL Server 2019 databases without error?
CREATE OR ALTER PROCEDURE [dbo].[StevesAmazingProc]
AS
SELECT Consumer_ID ,
Trend_Category ,
Bit_Trace
FROM NewWorldDB.dbo.MarketTrend;
GO See possible answers