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.
SQL SERVER – Unicode Storage and UTF8 Version Limits
nchar and nvarchar are usual types for Unicode character strings in SQL Server. Reader questions prompted my datatype summary.
Varchar vs Nvarchar – Storing Non-English Characters – SQL in Sixty Seconds #126
Let us learn how to store non-English Characters in SQL Server tables. You will learn in this video the major difference between VARCHAR and NVARCHAR.
SQL SERVER – Storing a Non-English String in Table – Unicode Strings
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.
How to Get Volume Mount Point for SQL Server Files? – Interview Question of the Week #295
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.
SQL Agent Operators and Notifications: Who Gets the Alert
Configure SQL Agent operators, connect jobs and alerts to email notifications, test delivery, and verify notification evidence.
Nested Transactions are Myth – SQL in Sixty Seconds #125
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.
SQL SERVER – Finding Open Transactions for Session – @@TRANCOUNT
To inspect Open Transactions for Session nesting on my connection, I use @@TRANCOUNT. It does not directly inspect another session.
SQL SERVER – Simple Recovery Model and Restrictions
Simple Recovery changes recovery options before it changes a performance diagnosis. I choose it from the agreed recovery requirements.
Dropping Temp Table in Stored Procedure – SQL in Sixty Seconds #124
Is dropping temp table in stored procedure code really needed? In this SQL in Sixty Seconds video, I compare two procedures to show what happens.