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 […]
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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, […]
MySQL – REGEXP_SUBSTR() Function Table of content Regular expressions in MySQL are used in search operations to filter and retrieve records from a database table that match specified patterns. This process of detecting patterns in a set of data is known as pattern matching. It is helpful whenever the data is considered to have similar […]