MySQL – SIGNAL Statement Table of content When working with MySQL stored procedures, managing exceptions is important to prevent abrupt termination of procedures and to provide meaningful error information. This is achieved using the MySQL SIGNAL statement and the DECLARE … HANDLER statement. The MySQL SIGNAL Statement The MySQL SIGNAL statement is used to convey […]
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MySQL – SQL Injection Table of content The SQL Injection in MySQL is a harmful approach where an attacker inserts or “injects” harmful SQL code into a database query. This can be done through user inputs such as forms, URL parameters, or cookies. The attacker takes advantage of weaknesses in the software to steal information […]
MySQL – SubQuery Table of content The MySQL subquery, also known as an inner query or nested query, is a query inside another query. It allows you to retrieve data from one or more tables based on the results of another query. Subqueries can be used in various parts of SQL statements, including SELECT, INSERT, […]