Two browser tabs, two default addresses. Here is how a filtered unique index keeps the rule in the database and how to switch defaults safely.
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TempDB Operating System Error 3: Fix a Wrong TempDB Path
TempDB operating system error 3 means a tempdb file path cannot be found, for example after a typo in a move. This post reproduces the error safely, shows how error 3 differs from error 2 and lists the repair steps when the service will not start.
Performance Troubles – Function on Date Variable – SQL in Sixty Seconds #192
However, I have a really good reason to use that. Today we are going to discuss Performance Troubles – Function on Date Variable.
Performance: Between and Other Operators – SQL in Sixty Seconds #191
If we use BETWEEN what will be the impact of performance. Let us watch Performance: Between and Other Operators.
Most Used Database Files – SQL in Sixty Seconds #190
If a client has many databases, this script finds the most used database files. Here is my SQL in Sixty Seconds video on it.
Reads and Writes per File: Rank Files by Bytes Moved
Reads and writes per file show which data or log file SQL Server uses the most. This post ranks the files of a demo database by bytes moved with sys.dm_io_virtual_file_stats and explains what the tally can and cannot tell you.
Optimize DATE in WHERE Clause – SQL in Sixty Seconds #189
During Comprehensive Database Performance Health Check, I often get questions about how to Optimize DATE in the WHERE Clause.
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