Question

In SQLite, a/an ________________ column requires that each row must have a value, and that value must be unique.

Answer 1

In SQLite, a UNIQUE column stipulates that each entry in that column must be unique across all rows, which is typical for identification fields like user IDs.

Step-by-step explanation:

In SQLite, a UNIQUE column requires that each row must have a value, and that value must be unique. This means when defining a table in SQLite, you can set a column to enforce uniqueness such that no two rows in the table are allowed to have the same value in that column.

This is typically used for identifying fields like a user ID or any other attribute that needs to be distinct for each record. If you try to insert a record with a duplicate value in a UNIQUE column, SQLite will return an error.