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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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One pump feeds two buckets in the same operation

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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Live Query Statistics

SQL SERVER – Live Query Statistics – SQL in Sixty Seconds #104

August 19, 2020
Pinal Dave
SQL Video
Execution Plan, SQL in Sixty Seconds, SQL Performance, SQL Server, SQL Server Management Studio

The biggest challenge is to know about the queries current execution status. In this video, we are going to see the details about Live Query Statistics.

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An ordered tray exposes the longest rod while a mixed tray requires searching

Do MAX Function Scan Table? – Interview Question of the Week #289

August 16, 2020
Pinal Dave
SQL Interview Questions and Answers
Execution Plan, SQL Performance, SQL Scripts, SQL Server

Question: Do MAX Function Scan Table to retrieve the data?

Answer: Yes, if there are no indexes to help retrieve data. Let us learn it today.

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Compute Scalar Operators

SQL SERVER – Computed Column and Compute Scalar Operators

July 11, 2020
Pinal Dave
SQL Performance
Computed Column, Execution Plan, SQL Function, SQL Operator, SQL Scripts, SQL Server

One of my clients recently asked me a very interesting question about the computed column and Compute Scalar Operators. Let us learn about it today.

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Statistics from Query

SQL SERVER – Wait Statistics from Query Execution Plan

June 22, 2020
Pinal Dave
SQL Performance
Execution Plan, SQL Scripts, SQL Server, SQL Server Management Studio, SQL Wait Stats

Recently one of my clients asked if I know a way to find the Wait Statistics from the Query Execution Plan. Yes, there is a way to do it.

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