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What to Look for in Execution Plans: Databases for Developers: Performance #3

You've got the plan for your SQL statement. But what do you need to change to make it faster? This video shows you how to add I/O information to the plan. This enables you to see which steps consume the most resources, and thus where you need to focus your tuning efforts. Need help with SQL? Ask us over on AskTOM: https://asktom.oracle.com Twitter:   / chrisrsaxon   Daily SQL Twitter tips:   / sqldaily   All Things SQL blog: https://blogs.oracle.com/sql/ Test your SQL Skills on the Oracle Dev Gym: https://devgym.oracle.com/ ============================ The Magic of SQL with Chris Saxon Copyright © 2020 Oracle and/or its affiliates. Oracle is a registered trademark of Oracle and/or its affiliates. All rights reserved. Other names may be registered trademarks of their respective owners. Oracle disclaims any warranties or representations as to the accuracy or completeness of this recording, demonstration, and/or written materials (the “Materials”). The Materials are provided “as is” without any warranty of any kind, either express or implied, including without limitation warranties or merchantability, fitness for a particular purpose, and non-infringement.