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alias

SQL SERVER – Strange Error Related to Alias

September 27, 2019
Pinal Dave
SQL Tips and Tricks
SQL Error Messages, SQL Scripts, SQL Server

They immediately paid for Comprehensive Database Performance Health Check and we got online to look at their strange error related to alias.

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SQL SERVER - Unable to Start SQL Server Service or Connect After Incorrectly Setting Max Server Memory to a Low Value

SQL SERVER – Unable to Start SQL Server Service or Connect After Incorrectly Setting Max Server Memory to a Low Value

September 26, 2019
Pinal Dave
SQL Tips and Tricks
SQL Connection, SQL Error Messages, SQL Memory, SQL Scripts, SQL Server, Starting SQL

After incorrectly setting max server memory to 14 MB instead of 145000, a client could not start SQL Server. Here is how we got it back online.

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A shepherd seen from behind counting sheep one by one through a half-open field gate, a red crook against the post.

ROWCOUNT_BIG and @@ROWCOUNT: Checking What a Statement Changed

September 25, 2019
Pinal Dave
SQL Tips and Tricks
Output Clause, SQL Function, SQL Scripts, SQL Server, SQL Trigger

Capture ROWCOUNT_BIG immediately after a change, validate expected counts, and handle NOCOUNT, triggers, and MERGE without stale values.

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Gouache painting of a vegetable bed divided into five sections with a vermilion watering can on one divider

Get Partition Info in SQL Server: Rows and Boundaries

September 24, 2019
Pinal Dave
SQL Tips and Tricks
SQL Scripts, SQL System Table, Table Partitioning

To get partition info in SQL Server, join sys.partitions to the partition scheme, function and filegroup views. This post builds a small partitioned table, lists every partition with its boundaries, row count and filegroup, and shows how to find the partition for a value. It also lists the tables that have more than one partition.

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Illustrated cover: Table Variable vs Temp Table

SQL SERVER – Table Variables or Temp Tables – Performance Comparison – SELECT

September 23, 2019
Pinal Dave
SQL Tips and Tricks
SQL Scripts, SQL Server, SQL TempDB, SQL Variable, Temp Table

Today we are going to discuss the performance comparison of table variables and temp tables when we are running SELECT queries.

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Temporary luggage rests in designated storage spaces on a shelf

Where is Table Variable Created? – Interview Question of the Week #243

September 22, 2019
Pinal Dave
SQL Interview Questions and Answers
Disk, SQL Scripts, SQL Server, SQL TempDB, Temp Table

Question: Where is Table Variable Created?

Answer: On Hard Disk and NOT in Memory.

I suggest you read the following blogs

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Illustrated cover: #Temp

SQL SERVER – Table Variable or Temp Table – Performance Comparison – INSERT

September 21, 2019
Pinal Dave
SQL Performance
SQL Scripts, SQL Server, SQL Variable, Temp Table

In this blog post, we will talk about Performance Comparison between Table Variable or Temp Table. Comprehensive Database Performance Health Check

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