Here is the link to download sample database for oracle :
https://www.oracle.com/in/database/technologies/appdev/datamodeler-samples.html
https://www.oracle.com/database/technologies/spatial-graph-here-data-downloads.html
Dream Always Dream , if you don't work on it : Real-world Oracle DBA troubleshooting guides for RAC, Data Guard, RMAN, performance tuning, upgrades, backups, and cloud migration. Tested in production environments.
Here is the link to download sample database for oracle :
https://www.oracle.com/in/database/technologies/appdev/datamodeler-samples.html
https://www.oracle.com/database/technologies/spatial-graph-here-data-downloads.html
Below is a comprehensive explanation of the most commonly used DBMS_STATS.GATHER_TABLE_STATS parameters and when you should use them. Synta...