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What Breaks If I Drop This Column? sys.sql_expression_dependencies

July 19, 2016
Pinal Dave
SQL Tips and Tricks
SQL Column, SQL Dependency, SQL Server, SQL System Table

Use sql_expression_dependencies and referencing-entity queries before a column change, then check module text and external callers for gaps.

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SQL SERVER – Identifying If Database Supports InMemory OLTP Functionality

July 18, 2016
Pinal Dave
SQL Performance
In-Memory OLTP, SQL Scripts, SQL Server

I had recently received an email about InMemory OLTP Functionality in Email when I was having a vacation with my family in the Australia.

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How to Change Fill Factor in SQL Server – Interview Question of the Week #080

July 17, 2016
Pinal Dave
SQL Interview Questions and Answers
SQL Index, SQL Scripts, SQL Server, SQL Server Management Studio

It is surprising to see that lots of people do not know that SQL Server Fill Factor 0 (which is the default value when SQL Server is installed) is equal to value as 100.

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SQL SERVER – Inspecting Historical CPU Ring Buffer Samples

July 16, 2016
Pinal Dave
SQL Tips and Tricks
SQL CPU, SQL Scripts, SQL Server

CPU Usage History helps me establish when a reported problem began. It gives a timeline rather than identifying the responsible query.

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SQL SERVER 2016 – Encrypt Your PII Data – Notes from the Field #132

July 14, 2016
Pinal Dave
SQL Tips and Tricks
Notes from the Field, SQL Server, SQL Server 2016, SQL Server Security

Mike Lawell found a client storing personal information in clear text. He explains how SQL Server 2016 encryption options can protect your PII data.

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SQL SERVER 2016 – Developer Edition Does Not Expire Like Evaluation Edition

July 13, 2016
Pinal Dave
SQL Tips and Tricks
SQL Download, SQL Scripts, SQL Server, SQL Server 2016

Developer Edition is not the 180-day Evaluation Edition. I check the edition before treating a calculated date as an expiration.

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The Row Version Tag: Page Splits After Turning On RCSI

July 11, 2016
Pinal Dave
SQL Tips and Tricks
Best Practices, SQL Performance, SQL Server

Turn on RCSI and every row you update gets a little bigger. On packed pages that means page splits, and I show the numbers on a small demo table.

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