How do I add constraints in SQL?
An example of an AI chatbot conversation about adding constraints in SQL.
How do I add constraints in SQL?
You can add constraints in SQL using the ALTER TABLE statement. What type of constraint are you looking to add?
I want to add a primary key constraint.
You can add a primary key constraint like this: ALTER TABLE table_name ADD CONSTRAINT constraint_name PRIMARY KEY (column_name); Do you need help with a specific table?
Yes, I have a table called 'employees'. How would I do that?
For the 'employees' table, you would use: ALTER TABLE employees ADD CONSTRAINT pk_employee_id PRIMARY KEY (employee_id); Make sure 'employee_id' is unique!
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