mysql saveOrUpdateBatch

The "saveOrUpdateBatch" function does not exist in MySQL. However, you can achieve a similar functionality by using multiple "INSERT INTO ... ON DUPLICATE KEY UPDATE" statements in a single transaction.

Here's an example of how you can implement a saveOrUpdateBatch function in MySQL using this approach:

START TRANSACTION;

-- Assume the table structure is:
-- CREATE TABLE my_table (
--   id INT PRIMARY KEY,
--   name VARCHAR(100),
--   age INT
-- );

INSERT INTO my_table (id, name, age) VALUES (1, 'John', 25) ON DUPLICATE KEY UPDATE name = VALUES(name), age = VALUES(age);
INSERT INTO my_table (id, name, age) VALUES (2, 'Jane', 30) ON DUPLICATE KEY UPDATE name = VALUES(name), age = VALUES(age);
INSERT INTO my_table (id, name, age) VALUES (3, 'Mike', 35) ON DUPLICATE KEY UPDATE name = VALUES(name), age = VALUES(age);

COMMIT;

In this example, the "INSERT INTO ... ON DUPLICATE KEY UPDATE" statement is used to insert new rows into the "my_table" table. If a duplicate key violation occurs (e.g., trying to insert a row with an existing primary key), the statement will update the existing row with the provided values.

You can repeat the "INSERT INTO ... ON DUPLICATE KEY UPDATE" statement for each row you want to insert or update in a batch. By wrapping all the statements in a transaction, you can ensure that either all the rows are inserted or none of them are.

Remember to adjust the table name and column names in the example to match your specific schema