Ashburn, February 22, 2018

Useful MySQL links

JOINS

Understanding JOINs in MySQL and Other Relational Databases
MySQL Database Tutorial – 22 – How to Join Tables

How can I make a MySQL SUM query return zero instead of null if there are no records?

How can I make a MySQL SUM query return zero instead of null if there are no records?
mysql, ifnull vs coalesce, which is faster?

UNIX TIMESTAMP in Query

UNIX TIMESTAMP in Query

Current Date and Time in Query

Current Date and Time in Query

Adding Seconds to datetime in MySQL

Adding Seconds to datetime in MySQL

IFNULL Function

IFNULL Function

IS NULL Condition

IS NULL Condition

IS NOT NULL Condition

IS NOT NULL Condition

Using IF in a WHERE clause

Using IF in a WHERE clause

About Karlos Maldonado 41 Articles
Computer Sciences Engineer graduated from Florida Atlantic University (FAU) in Boca Raton, Florida. Has gotten great experience in the IT and Web Development industry working for companies such as SIRIUS XM RADIO, 4MEDIA as well as collaborating with local companies.

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