External Article

Automatic UNDO in Oracle

Automatic UNDO Management isn't voodoo or black magic, although it can seem that way when it isn't clearly understood. How does Oracle decide how many UNDO segments to create at startup, and what is the underlying goal of the process? David Fitzjarrell investigates.

External Article

Power Query Formula Language in Power BI Desktop

The Power Query Formula Language (PQFL) is a functional language that drives the Power BI transformations, and allows you to create mashup queries from scratch. In this article, Rob Sheldon demonstrates how to use it in Power BI Desktop to extract data from its source, filter rows, specify the columns, clean the data, and create visualisations.

External Article

How to Avoid Conditional JOINs in T-SQL

Relational databases go out of their way to execute SQL, however bad the crimes against Codd and relational theory within the query might be. The 'conditional join' can be executed, but at great cost. As always, it is much better to sit back and restate the problem in a set-based way - Dwain Camps explains.

Blogs

When growing companies outgrow Excel

By

There are some telltale signs that your growing business has outgrown Excel for your...

T-SQL Tuesday #198 Roundup: How Do You Detect Data Changes?

By

Thank you to everyone who participated in T-SQL Tuesday #198! When I wrote the...

Optimizing Redshift Performance by Configuring WLM Queues

By

Efficient query performance in Amazon Redshift often comes down to how well you manage...

Read the latest Blogs

Forums

Stairway to Reliable Database Deployment Level 3 – Rehearsing Changesets Across Environments

By Massimo Preitano

Comments posted to this topic are about the item Stairway to Reliable Database Deployment...

QUOTENAME Quote Parameters

By Steve Jones - SSC Editor

Comments posted to this topic are about the item QUOTENAME Quote Parameters

Limit the Blast Radius

By Steve Jones - SSC Editor

Comments posted to this topic are about the item Limit the Blast Radius

Visit the forum

Question of the Day

QUOTENAME Quote Parameters

When I use QUOTENAME(), I can optionally provide the character used to surround the string in the result. Can I use any character?

See possible answers