How to Order MySQL Records by a Specific Sequence Using IN()?

MySQL Ordering by Specified Sequence Using IN()

This question revolves around retrieving database records in a specific order based on an array of IDs provided in PHP. The challenge is to ensure that the results align with the order of the IDs in the IN() method.

To achieve this, the recommended solution utilizes the FIELD function. Although primarily intended for string manipulation, FIELD also works seamlessly with numeric values. By employing the FIELD function in the ORDER BY clause, you can specify the desired order of the records explicitly.

For instance, consider the following SQL statement:

ORDER BY FIELD(field_name, 3,2,5,7,8,1)

In this statement, field_name represents the column containing the IDs. The numbers in the parentheses represent the sequence in which the records should be retrieved. Therefore, if the field_name column contains the values (3,2,5,7,8,1), the records will be returned in the order: 3, 2, 5, 7, 8, 1.

The above is the detailed content of How to Order MySQL Records by a Specific Sequence Using IN()?. For more information, please follow other related articles on the PHP Chinese website!