Is There a Limit to the Number of Values in MySQL\'s `IN` Condition?

MySQL 'IN' Condition Without Limits

In MySQL, the 'IN' condition in a statement can filter rows based on a set of id values. The primary concern arises when working with a large number of values.

Is There a Limit on Values in the 'IN' Statement?

Unlike some other databases, MySQL has lifted the limit on the number of values that can appear in the 'IN' statement. The upper bound is determined by the 'max_allowed_packet' value.

Manual Explanation

According to the MySQL manual, the 'IN' function places no restrictions on the number of values in the list.

The number of values in the IN list is only limited by the max_allowed_packet value.

Conclusion

With no defined limit, users can confidently use the 'IN' condition for filtering operations on large datasets. The only constraint to consider is the server's 'max_allowed_packet' value, which sets the threshold for the size of a single database packet.

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