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Who Dropped

Who Dropped Your Table? – SQL in Sixty Seconds #112

August 28, 2020
Pinal Dave
SQL Video
SQL in Sixty Seconds, SQL Reports, SQL Scripts, SQL Server, SQL Server Security

Who Dropped My Table? – I was recently asked this question in Comprehensive Database Performance Health Check. Let us learn about it today.

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Single Column

Single Column Single Row and TABLE SCAN – SQL in Sixty Seconds #111

August 27, 2020
Pinal Dave
SQL Video
Execution Plan, SQL in Sixty Seconds, SQL Operator, SQL Performance, SQL Scripts, SQL Server

Can a single column and single row result do an entire table scan? I recently got this question in my  Comprehensive Database Performance Health Check.

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WITH NOLOCK

Dirty Read with NOLOCK – SQL in Sixty Seconds #110

August 26, 2020
Pinal Dave
SQL Video
SQL in Sixty Seconds, SQL Performance, SQL Scripts, SQL Server, Transaction Isolation

Recently I noticed that my client has been using the WITH NOLOCK hint with their queries and expecting that it will improve the queries performance.

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Human Error

Undo Human Errors in SQL Server – SQL in Sixty Seconds #109 – Point in Time Restore

August 25, 2020
Pinal Dave
SQL Video
SQL Backup, SQL in Sixty Seconds, SQL Restore, SQL Scripts, SQL Server

In this blog post, we are going to talk about how to undo human errors in SQL Server with the help of Point in Time Recovery. Let us learn today.

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data type

Solve Puzzle about Data type – SQL in Sixty Seconds #108

August 24, 2020
Pinal Dave
SQL Puzzle, SQL Video
Data Type, SQL in Sixty Seconds, SQL Scripts, SQL Server

A very interesting puzzle, where you see the data type conversion in action. I have previously blogged about this puzzle and had received amazing feedback.

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Insert Multiple

How to Insert Multiple Values into Multiple Tables in a Single Statement? – Interview Question of the Week #290

August 23, 2020
Pinal Dave
SQL Interview Questions and Answers
Execution Plan, SQL Scripts, SQL Server

Question: How to Insert Multiple Values into Multiple Tables in a Single Statement? One of the most popular questions, I often receive from my client.

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Scan Table

Do MAX(col) Scan Table? – SQL in Sixty Seconds #106

August 21, 2020
Pinal Dave
SQL Video
Execution Plan, SQL in Sixty Seconds, SQL Operator, SQL Performance, SQL Scripts, SQL Server, SQL Table Operation

While working on working on a Comprehensive Database Performance Health Check my client asked me – Do MAX(col) Scan Table? Let us learn about that today.

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