Q) What is the difference between transaction insert query and normal query

Answer:

Understanding the Difference between Transaction Insert Query and Normal Query

When it comes to inserting data into a database, there are two ways to do it: using a normal query or a transaction insert query. While both methods can achieve the same result, they differ in their approach and behavior. In this response, we'll explore the key differences between the two.

Normal Query

A normal query, also known as a standalone query, is used to insert data into a database table without using a transaction. The query is executed as soon as it is sent to the database, and the results are immediate. Here's an example of a normal query:
 

INSERT INTO customers (name, email) VALUES ('John Doe', 'johndoe@example.com');

Transaction Insert Query

A transaction insert query, on the other hand, is used to insert data into a database table as part of a larger transaction. Transactions allow you to group multiple statements together, ensuring that either all statements are executed or none are, in case an error occurs. Here's an example of a transaction insert query:

sql
BEGIN TRANSACTION;

INSERT INTO customers (name, email) VALUES ('Jane Smith', 'janesmith@example.com');
INSERT INTO orders (customer_id, order_date) VALUES (1, '2022-01-01');

COMMIT;
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Key Differences

The key differences between a normal query and a transaction insert query are:

1. Atomicity: Transactions ensure that multiple statements are executed as a single, atomic unit. If an error occurs during the transaction, all changes are rolled back, maintaining the consistency of the database. Normal queries do not provide this level of atomicity.
2. Isolation: Transactions ensure that multiple users can access the database concurrently without interfering with each other's changes. Normal queries do not provide this level of isolation.
3. Error Handling: Transactions provide a way to handle errors and roll back changes if an error occurs. Normal queries do not provide this level of error handling.

Conclusion
In summary, while both normal queries and transaction insert queries can be used to insert data into a database table, the choice between the two depends on the specific requirements of your application. If you need to ensure atomicity, isolation, and error handling, use a transaction insert query. If you need to make a single insert operation and don't care about the above-mentioned features, use a normal query.