What is SQL DML and how is it used?
SQL DML stands for Data Manipulation Language, which is used to manage data within relational databases. It includes commands like SELECT, INSERT, UPDATE, and DELETE.
Can you give me an example of an INSERT statement?
Sure! An example of an INSERT statement is: INSERT INTO employees (name, age, department) VALUES ('John Doe', 30, 'HR');
This adds a new employee record.
What about an UPDATE statement?
An UPDATE statement modifies existing records. For example: UPDATE employees SET age = 31 WHERE name = 'John Doe';
This changes John's age to 31.
How do I delete a record?
To delete a record, you can use the DELETE statement. For example: DELETE FROM employees WHERE name = 'John Doe';
This removes John Doe's record from the table.
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