How to write SQL queries: Databases for Developers #4

You query a database table with a select statement. But unless you provide a where clause, this will return you all the rows!
That's a lot for you to sift through if your table has millions, billions or trillions of rows. In this episode Chris discusses common conditions for filtering rows so the database only returns what you need.
Further reading:
Oracle Database 12.2 select syntax: docs.oracle.com/database/122/S...
Oracle Database Concepts Guide on Select: docs.oracle.com/database/122/C...
Take the Databases for Developers FREE SQL course at devgym.oracle.com/pls/apex/dg...
Daily SQL tips on Twitter: / sqldaily
Chris on Twitter: / chrisrsaxon
All Things SQL Blog: blogs.oracle.com/sql
============================
The Magic of SQL with Chris Saxon
Copyright © 2015 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.

[@eren34558]

I spent 2 weeks looking over this info on a different website, and here your class is, actually making it understandable.
SQL teacher indeed.

[@TheMagicofSQL]

Awww, you're making me blush Eren! :)
Great to hear this helps you.

[@emilemary]

Excellent presentation, the best SQL course!! I love the creativity in your videos. Thank you so much!!

[@TheMagicofSQL]

You're welcome, glad you appreciate these!

[@medhapundir6853]

awesome content, easy to follow.Thanks for making Dfd series.

[@TheMagicofSQL]

You're welcome, glad you find them easy to understand :)

[@studentforever1242]

awesome explaination. Thank you.

[@juno7893]

Wild cards were hilarious

[@tonick789]

Fantastic content! Thank you!

[@TheMagicofSQL]

You're welcome, glad you enjoyed it! :)

[@romskom]

Exсellent video! As usual... :)

[@TheMagicofSQL]

Thanks :)