Question

which query is used to list a unique value for v code, where the list will produce only a list of those values that are different from one another (i.e., eliminating duplicate values)?

Answer 1

The query to list unique values for v code, eliminating duplicates, is "SELECT DISTINCT v_code FROM table_name;" This uses the SELECT DISTINCT statement in SQL.

Step-by-step explanation:

To list a unique value for v code where the list will produce only a list of those values that are different from one another, thereby eliminating duplicate values, you would use the SELECT DISTINCT statement in SQL.

Here is an example of how you might write this query:

SELECT DISTINCT v_code FROM table_name;

This SQL query will check the table_name and return only unique values for the v code column, effectively removing any duplicates from the list of returned results.