Like ancient Gaul, SQL is divided into three sub- languages. The DDL (Data Declaration Language) declares the data. This is where we find the data types, constraints, references and other structures that have to do with how the data stored . The DML (Data Manipulation Language) uses those declarations to change their contents or to invoke them. It does not change structures and schema objects.
2024-12-04
A while back, in a Simple-Talk editorial meeting, someone bet Phil Factor that he couldn't come up with a Halloween story. To our surprise he said he could, as long as he didn't have to keep to the strict literal truth. In the end, he came up with a story about a story, and it is true that he first told the story in a data Centre at Halloween!
2024-12-04 (first published: 2014-10-31)
10,375 reads
As a Data Engineer I found myself having to learn rather more about cloud infrastructure than I had expected.
2024-12-02
2,896 reads
This article looks at how to use SQL IS NULL and SQL IS NOT NULL operations in SQL Server along with use cases and working with NULL values.
2024-12-02
If you've ever wondered if you can do better than an INDEX SCAN when you do a LIKE "%string%" search, read on...
2024-11-29 (first published: 2014-04-07)
49,503 reads
Welcome to part 2 of our Demystifying Continuous Integration vs. Continuous Delivery series.
2024-11-29
This tip explores leveraging existing SQL Server stored procedures within the Microsoft GraphQL API.
2024-11-27
This isn't really a first look, per se. I've seen Erin Stellato present on this a few times in MVP sessions and at the PASS Data Community Summit. However, this is a look on my machine, where I'm in control. The new version preview was announced recently, and this looks at the new process to […]
2024-11-25
6,423 reads
Starting at 4pm PST on Thursday, November 28th, SQLskills will be offering our lowest prices ever for our signature Blackbelt bundle with more than 158 hours of top-quality training.
2024-11-25 (first published: 2024-11-06)
Bob Ward announces the next version of SQL Server, now in private preview.
2024-11-22
11,361 reads
Want to learn SQL and get some real practice this December? Check out the...
By Steve Jones
A new feature added to Redgate Monitor Enterprise automatically. CIS compliance is something many...
By Steve Jones
This is my last week of the year working (I guess I come back...
Mobile game development has become a cornerstone of the entertainment industry, transforming creative ideas...
Mobile app development has become a cornerstone of modern business strategies, enabling companies to...
I have listed the event names present in my system_health extended event report. Based...
Which of these indexes is superseded by another?
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