Is Combining Multiple MySQL INSERT Statements Efficient, or Should Multi-Row Inserts Be Used Instead?

Executing Multiple MySQL INSERT Statements in a Single Query

The question arises as to whether it is acceptable to combine multiple INSERT statements into a single query string, as shown in the code snippet below:

$string1= "INSERT INTO....;";
$string1 .= "INSERT INTO....;";
$string1 .= "INSERT INTO....;";
mysql_query($string1) or die(mysql_error());

Alternative Approach using Multi-Row Inserts

While the above approach is technically possible, it can be inefficient and prone to errors. As suggested in the answer, a more effective method is to use multi-row inserts, allowing you to insert multiple sets of data with a single query. This approach provides the benefit of simplifying the query and reducing the risk of errors due to incorrect concatenation of individual INSERT statements.

Example of a Multi-Row Insert:

INSERT INTO a VALUES (1,23),(2,34),(4,33);
INSERT INTO a VALUES (8,26),(6,29);

By utilizing multi-row inserts, you can streamline your queries, improve efficiency, and minimize the potential for errors in executing multiple data insertions.

The above is the detailed content of Is Combining Multiple MySQL INSERT Statements Efficient, or Should Multi-Row Inserts Be Used Instead?. For more information, please follow other related articles on the PHP Chinese website!