What do PostgreSQL 9.2, Oracle 12c and MySQL 5.7.8 have in common? They all integrated JSON as a possible data type. Pretty cool, huh?! Actually, I think using JSON in a relational database is one of the worst ideas you can have. Let me explain why.
![](https://www.thomascerqueus.fr/wp-content/uploads/2017/06/Tuto3_PostgreSQL-1-e1497941994742.png)
![](https://www.thomascerqueus.fr/wp-content/uploads/2017/06/Tuto3_MySQL-e1497941371988.png)
![](https://www.thomascerqueus.fr/wp-content/uploads/2017/06/Tuto3_Oracle-e1497941362110.png)
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