How can SQL queries be optimized to filter out unwanted data based on specific year and month criteria in PHP?

To optimize SQL queries to filter out unwanted data based on specific year and month criteria in PHP, you can use the DATE_FORMAT function in SQL to extract the year and month from a date field. Then, you can use these extracted values in your WHERE clause to filter the data accordingly. 

// Specify the year and month criteria
$year = 2022;
$month = 10;

// Construct the SQL query with the year and month criteria
$sql = "SELECT * FROM table_name WHERE YEAR(date_column) = $year AND MONTH(date_column) = $month";

// Execute the query and fetch the results
$result = $conn->query($sql);

// Process the results as needed

Keywords

PHP SQL queries optimization filtering specific criteria

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