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The case statement in MySQL is a conditional expression that returns a value based on one or more conditions. It is used to determine the result of a...
The COALESCE function in MySQL is used to return the first non-NULL value in a list of expressions. If all expressions are NULL, the function returns...
The IFNULL() function in MySQL is a useful tool that allows you to replace NULL values with a specified value. Points To Remember: The IFNULL()...
The UNION operator in MySQL is used to combine the results of two or more SELECT statements into a single result set. It is a useful tool for merging...
MySQL joins are used to combine data from multiple tables in a relational database. They allow you to retrieve information from multiple tables as if...
Aliases are used for our convenience to give the result columns a temporary name and make them more readable. Aliases are temporary, meaning they...
