Today, we will see another interesting topic where the index affects the delete statement. Let us start watching the video Indexing for Delete.
Remove Key Lookup – SQL in Sixty Seconds #194
Today, we are going to see one more trick from the book – Remove Key Lookup and improve the performance of queries.
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.