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MySQL Index Tutorial: How to Use EXPLAIN, Composite Indexes and Speed Up Slow Queries

Submitted by jaypabs on

Your PHP or Python app was fast when the database had 50 test rows. Now the client has a year of real data, and the order history page takes several seconds to load. In most cases the fix is not a faster server or a new framework. It is one missing index.

Try and Catch Statements

Submitted by GeePee on
Introduction: This page will teach you about the Try and Catch statements in Java. What is a Try and Catch statement? A Try and Catch statement is a very handy statement which allows the program to handle errors and warnings thrown by the scripts. Each Try and Catch statement contains the block of script to handle, a single or multiple exception(s) followed by block(s) of script which are executed if that specific exception is thrown by the handled script.
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