Difference MySQL PostGreSQL

The biggest differences are:

• PostGreSQL is case sensitive
• Command/function
• Dates are stored without format in PostGreSQL
• Round off
• Customised functions

Contents

Upgrading Views from mySQL to PostreSQL

When upgrading from IMSMA^NG 5.08.04 to 6.0, the database views need to be adapted, i.e. changed from mySQL syntax to PostgreSQL syntax. The country focal point is taking care of this. For reference, this section describes the main changes encountered. This can also be used as a tutorial for creating views in PostgreSQL, for IMSMA^NG administrators who were used to creating them in mySQL.

Case sensitivity and column names

The GROUP BY clause

IF and IFNULL (mySQL) / CASE (PostgreSQL) statements

Date manipulations

CAST AS CHAR utf8 (mySQL)