: This likely represents a dummy or non-existent ID. By using an ID that doesn't exist, the attacker ensures the first part of the query returns no results, making the "injected" results from the second part more visible.
This specific string is designed to trick a web application into running an unintended database command: -9718 UNION ALL SELECT 34,34,34,34,34,34,34,34,34,34#
: The repeated "34" is used to determine the number of columns required by the original query. If the number of values (in this case, ten) doesn't match the original table's columns, the database will return an error. : This likely represents a dummy or non-existent ID
: This ensures the database treats the input as literal data rather than executable code. If the number of values (in this case,
: Ensure the database user account has the bare minimum permissions necessary to function.
: Filter and sanitize all user-provided data to block unexpected characters like UNION , SELECT , or # .
