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Free eBook: SQL Server Internals: In-Memory OLTP

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In this free eBook, Kalen Delaney explains how Microsoft's 2016 In-memory OLTP engine works. In her book, learn how to use lock- and latch-free data structures to allow non-blocking data processing, and find out how to migrate existing tables to Hekaton.

2020-12-30 (first published: )

55,467 reads

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Free eBook: SQL Server Backup and Restore

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In this free eBook Shawn McGehee offers advice on query tuning, cutting stored procedures, and system process design and implementation for high availability. Discover how to perform backup and restore operations using SQL Server Management Studio (SSMS), basic T-SQL scripts and Redgate's SQL Backup tool.

2020-12-02 (first published: )

80,501 reads

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ROLLUP to calculate Month total for all Categories

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Good Afternoon, I have built a table with four columns:  Period(Month), Category, Numerator, Denominator....

Creating JSON I

By Steve Jones - SSC Editor

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Question of the Day

Creating JSON I

On SQL Server 2025, what happens when I run this code:

SELECT JSON_OBJECTAGG( 'City':'Denver')
GO

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