Which statement is true regarding non-SELECT queries?

The statement regarding non-SELECT queries that is true is that it is mandatory to define the Entity or Outgoing Structure. This is important because non-SELECT queries, such as INSERT, UPDATE, or DELETE, need to know the target of the operation.

When executing these types of queries, specifying the Entity informs the system about which database table you’re interacting with. For an INSERT operation, the Outgoing Structure defines how the new data will be structured and allows you to map the input parameters correctly. This ensures data integrity and adherence to the schema of the database.

In contrast, the other options are not accurate. For instance, it is entirely possible to execute DELETE queries with the SQL tool, and Query Parameters can indeed be used in non-SELECT queries to provide dynamic values at runtime. Additionally, while you can specify selective attributes in an INSERT query, outlining each attribute is not mandatory if default values are set or if the structure allows for such flexibility. Hence, defining the Entity or Outgoing Structure is essential for the successful execution of non-SELECT queries.