How do I remove a column from a SQL table?
An example of an AI chatbot conversation about removing columns in SQL tables.
How do I remove a column from a SQL table?
You can remove a column using the ALTER TABLE statement. For example: ALTER TABLE table_name DROP COLUMN column_name;
What happens to the data in that column?
The data in the column will be permanently deleted. Make sure to back it up if needed.
Can I remove multiple columns at once?
Yes, you can remove multiple columns by listing them: ALTER TABLE table_name DROP COLUMN column1, DROP COLUMN column2;
Is there a way to undo this action?
No, once you drop a column, the action cannot be undone unless you have a backup.
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