In SQL Server 2016, Microsoft introduced the Query Store, a feature set designed to capture performance information around query execution. This allows the administrator to quickly identify a ...

SQL Server Query Store automatically captures a wide range ... such as which queries are most resource-intensive or have variable performance, and use this insight to focus your troubleshooting ...

The ability to store SQL*Plus variables and fill them with Oracle ... we define a variable called &blksz and then use it inside the main query to determine the percentage of free space inside ...