In this tutorial, we will learn about MySQL Flow Control functions. The flow control function enables us to choose between different values based on the result of an expression. Some of the flow control functions are:
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Database Connection Pooling When applications interact with databases, they need to establish a connection to send queries and receive results. Creating and closing a new database connection every time can be slow and resource-intensive. This is where connection pooling comes into play. It helps applications reuse existing connections instead of creating new ones repeatedly, making […]
MySQL COALESCE() Function The COALESCE() function in MySQL returns the first non-null value from a list of expressions. If all arguments are NULL, it returns NULL. Syntax COALESCE(expr1, expr2, …, exprN) expr1, expr2, …, exprN: These are the expressions to evaluate. The function returns the first non-null expression from this list. It requires at least […]
