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The MySQLi extension, or as it is sometimes known, the MySQL Improved extension, was developed to take advantage of new features found in MySQL systems versions 4.1.3 and newer. The MySQLi extension is included with PHP versions 5 and later.

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Combine Mysql limit query

You need to convert your second query to a subquery and join it with the main query. To pass the learning outcome into the inner query you need to use the user-defined variable: SELECT sc.studen …
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