How can I use SQL for effective data management?
SQL is essential for managing data. You can use it to create, read, update, and delete data in databases.
Can you give me an example of a SQL query for retrieving data?
Sure! A simple query to retrieve all records from a table called 'employees' would be: SELECT * FROM employees;
What about updating a record?
To update a record, you can use the UPDATE
statement. For example: UPDATE employees SET salary = 50000 WHERE id = 1;
How do I delete a record?
You can delete a record using the DELETE
statement. For example: DELETE FROM employees WHERE id = 1;
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