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MySQL provides several REGEXP (regular expression) functions that allow you to work with regular expressions in your SQL queries. Regular expressions are powerful patterns that are used for pattern matching within strings. Here are some of the key MySQL REGEXP functions: REGEXP The REGEXP function is used in the WHERE clause to perform a regular […]
MySQL Window Functions are powerful tools that allow you to perform calculations across a set of table rows related to the current row. These functions are particularly useful when you need to analyze and derive insights from your data based on specific ordering or partitions within your result set. Here are some commonly used MySQL […]
MySQL provides various information functions that allow you to retrieve details about the database server, user sessions, and other relevant information. Here’s an overview of some of the key information functions: Function Description CONNECTION_ID() Returns the unique connection identifier for the current session. Useful for identifying different connections in a multi-user environment. CURRENT_ROLE() Returns the […]
MySQL provides encryption and compression functions that allow users to enhance the security and performance of their databases. Two commonly used encryption functions in MySQL are MD5 and SHA2. MD5 Overview: MD5 is a widely used cryptographic hash function that produces a 128-bit hash value (32 characters) from any input data. While MD5 is no […]
MySQL XML functions, including EXTRACTVALUE and UPDATEXML, provide powerful tools for working with XML data within a relational database environment. These functions are particularly useful when dealing with scenarios where XML information needs to be extracted, manipulated, or updated within a MySQL database. Common Usage Both EXTRACTVALUE and UPDATEXML are commonly used for various tasks […]
MySQL provides the CAST and CONVERT functions to perform explicit type conversions, allowing you to convert data from one data type to another. Both functions essentially serve the same purpose, but there are some differences in their syntax and usage. CAST function The CAST() function is used to explicitly convert an expression or a value […]
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