Syntax: expr IN (value,...) The function returns 1 if expr is equal to any of the values in the IN list, otherwise, returns 0. The DATABASE function will return an empty string, if there is no default database (Prior to MySQL 4.1.1). Or, they can be used within the programming environment provided by the MySQL database, such as stored procedures, functions, triggers, etc. To demonstrate a basic example of stored functions, let's start by creating a database that we can use for testing purposes. Adds two or more expressions together. Aggregate functions return a single result row based on groups of rows, rather than on single rows. For further details, please contact the MySQL Sales Team. MySQL RAND Function − This is used to generate a random number using MySQL command. In MySQL Function can also be dropped. MySQL stored procedures, functions and triggers, are tempting constructs for application developers. Adds two or more expressions together with a separator. TechOnTheNet.com requires javascript to work properly. MySQL SQRT Functions − This is used to generate a square root of a given number. In the following SQL statement, replace usernamewith your account username: If you are using phpMyAdmin, click the name username_testto select the database. This section gives you the most commonly used MySQL functions including aggregate functions, string functions, date time functions, control flow functions, etc. The PHP language provides functions that make communicating with MySQL extremely simple. MySQL String Functions − Complete list of MySQL functions required to manipulate strings in MySQL. Continue reading → MySQL Functions. Strings functions - operate on string data types 2. To show all available databases enter the following command: SHOW DATABASES; Make sure to include the semicolon at the end. mysqldump will backup by default all the triggers but NOT the stored procedures/functions. Tabs Dropdowns Accordions Side Navigation Top Navigation Modal Boxes Progress Bars Parallax Login Form HTML Includes Google Maps Range Sliders Tooltips Slideshow Filter List Sort List. Use this section to learn mysql String functions that are available. This function returns 0 when search string does not exist in the string list and returns NULL if either of the arguments is NULL. MySQL Numeric Functions − Complete list of MySQL functions required to manipulate numbers in MySQL. The window functions allow you to solve query problems in new, easier ways, and with better performance. PHP communicates with MySQL databases by using a set of functions developed specifically for this purpose. The search for the item then is done using a binary search. Expressions can be used at several points in SQL statements, such as in the ORDER BY or HAVING clauses of SELECT statements, in the WHERE clause of a SELECT, DELETE, or UPDATE statement, or in SET statements. 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