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Data Control Language (aka Security)

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

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Transactions

By now, pretty much everyone has heard the stories about the first computers. They were huge, cost a fortune, required incredible amounts of air conditioning, and perhaps more importantly, ran batch jobs submitted on punched cards and magnetic tape. But even before we had these dinosaurs, there were E.A.M (electric accounting machine) units.

2024-11-22

Blogs

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Hi all Can I get some perspective from the community please on performing in-place...

How Long is a Long I/O?

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By Imran2629

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Question of the Day

How Long is a Long I/O?

In SQL Server 2025, a long I/O is recorded in the error log with message 833. How long much an I/O request be outstanding before this message is written to the log?

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