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The same accordion basket construction appears compact and expanded

How to Change Database File Size? – Interview Question of the Week #296

October 4, 2020
Pinal Dave
SQL Interview Questions and Answers
Shrinking Database, SQL Performance, SQL Scripts, SQL Server, SQL Server DBCC

Question: How to Change Database File Size?

Answer: By Shrinking the files. Now, many have a negative opinion about Shrinkfile.

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Comparison

Performance Comparison – IN vs BETWEEN – SQL in Sixty Seconds #127

October 2, 2020
Pinal Dave
SQL Video
SQL in Sixty Seconds, SQL Operator, SQL Performance, SQL Scripts, SQL Server

Yesterday I blogged about SQL SERVER – Performance Comparison – BETWEEN, IN, and Operators. Following that, I got many emails about the topic.

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Gouache painting of a wooden marble run with a bend and a single vermilion marble rolling down it

BETWEEN vs IN in SQL Server: Which One Reads Less?

October 1, 2020
Pinal Dave
SQL Performance
SQL Index, SQL Operator, SQL Scripts, SQL Server

BETWEEN vs IN looks like a style choice, and it is not. This post builds a demo table and measures BETWEEN, the two operators and an IN list with and without an index. It shows that BETWEEN and the operators share one plan, that IN seeks once for every value and that sparse values change the question.

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Woven strips of different widths occupy fixed compartments and flexible storage channels.

SQL SERVER – Unicode Storage and UTF8 Version Limits

September 30, 2020
Pinal Dave
SQL Tips and Tricks
SQL Datatype, SQL Scripts, SQL Server, SQL String

nchar and nvarchar are usual types for Unicode character strings in SQL Server. Reader questions prompted my datatype summary.

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non-English

SQL SERVER – Storing a Non-English String in Table – Unicode Strings

September 28, 2020
Pinal Dave
SQL Tips and Tricks
SQL Datatype, SQL Scripts, SQL Server, Unicode

Yesterday I had a meeting with my client Performance Health Check, and they wanted to know how to store a non-English string in a table. 

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Branches connect to one rooted tree, with a vermilion band marking their shared trunk

How to Get Volume Mount Point for SQL Server Files? – Interview Question of the Week #295

September 27, 2020
Pinal Dave
SQL Interview Questions and Answers
Computer Network, SQL Scripts, SQL Server

Question: How to Get Volume Mount Point for SQL Server Files? 

Answer: I was asked this question by my client during the recent Health Check.

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nested transaction

Nested Transactions are Myth – SQL in Sixty Seconds #125

September 25, 2020
Pinal Dave
SQL Video
SQL in Sixty Seconds, SQL Performance, SQL Scripts, SQL Server, SQL Transactions

Many sent me an email that they want to know more about the nested transactions. Let us learn about them in today’s blog post. 

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