Which statement is true about the DELETE command?

The statement that the DELETE command can selectively remove multiple rows based on conditions is accurate. In SQL, the DELETE command is designed to remove records from a database table based on specified criteria. This can be achieved using a WHERE clause that defines the conditions under which rows should be deleted. For example, you could construct a query to delete all entries where a certain column meets specific conditions (e.g., all records from a particular year or all records associated with a certain status).

This flexibility allows not only for targeted deletions of individual rows but also for bulk deletions of multiple rows that meet the criteria defined in the query, making it a powerful tool for data management. In contrast, the other options misrepresent the capabilities of the DELETE command. The command is versatile enough to handle bulk row deletions, does not inherently require a connection string for execution (as that is a function of the database interface rather than the SQL command itself), and is not limited to numeric data types; it can work with any data type as long as the conditions are correctly defined in the query.