Which SQL statement is used to remove a unique constraint from a column?OptionsMODIFY COLUMNDROP CONSTRAINTREMOVE UNIQUEALTER TABLE

The SQL statement used to remove a unique constraint from a column is ALTER TABLE. Here are the steps:

1. Identify the table and the constraint: Before you can remove a constraint, you need to know the name of the table and the constraint.

2. Use the ALTER TABLE statement: This is the SQL command used to change the structure of a table, including adding or dropping constraints.

3. Use the DROP CONSTRAINT command: This is the specific command used to remove a constraint from a table.

4. Execute the command: Once you have written the command, you need to execute it in your SQL environment.

Here is an example of how you might use these commands to remove a unique constraint:

ALTER TABLE table_name
DROP CONSTRAINT constraint_name;

In this example, table_name is the name of the table and constraint_name is the name of the unique constraint you want to remove.