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  1. stackoverflow.com › questions › 4205181Insert into a MySQL table or update if exists - Stack Overflow

    17 lis 2010 · I want to add a row to a database table, but if a row exists with the same unique key I want to update the row. For example: INSERT INTO table_name (ID, NAME, AGE) VALUES(1, "A", 19); Let’s say the unique key is ID, and in my Database, there is a row with ID = 1.

  2. www.geeksforgeeks.org › how-to-insert-if-row-does-not-exist-in-mysqlHow to INSERT If Row Does Not Exist in MySQL - GeeksforGeeks

    12 cze 2024 · An "AFTER INSERT" trigger in MySQL automatically executes specified actions after a new row is inserted into a table. It is used to perform tasks such as updating related tables, logging changes or performing calculations, ensuring immediate and consistent data processing.

  3. www.baeldung.com › sql › insert-update-if-row-existsInsert Into a SQL Table or Update if the Row Exists - Baeldung

    17 paź 2024 · MySQL provides two ways to insert a row into a table or update the row if it already exists. We can use the INSERT INTO … ON DUPLICATE KEY UPDATE syntax or the REPLACE statement.

  4. www.machinelearningplus.com › sql › how-to-insert-into-a-table-or-update-if-existsHow to insert into a table or update if exists in MySQL?

    Learn how to insert into a table or update if exists in MySQL and SQL Server. You need to calculate a running total in SQL Server and provide a solution that is also reproducible in MySQL.

  5. www.slingacademy.com › article › mysql-upsert-update-if-exists-insert-if-notMySQL Upsert: Update if exists, insert if not - Sling Academy

    27 sty 2024 · Here’s how you would insert a new product or update the quantity if it already exists. INSERT INTO products (id, name, quantity) VALUES (1, 'Widget', 10) ON DUPLICATE KEY UPDATE quantity = VALUES(quantity) + 10;

  6. www.delftstack.com › howto › mysqlUsage of IF EXISTS in MySQL Database - Delft Stack

    3 sty 2023 · Basic Usage of the EXISTS Operator in MySQL. The EXISTS condition in MySQL is generally used along with a subquery that consists of a condition to be met. If this condition is met, then the subquery returns a minimum of one row. This method can be used to DELETE, SELECT, INSERT, or UPDATE a statement.

  7. www.atlassian.com › data › adminUpsert Techniques in MySQL: INSERT If Not Exists | Atlassian

    Learn to insert rows in MySQL only if they don't exist. Explore techniques like INSERT IGNORE, REPLACE, and ON DUPLICATE KEY UPDATE. Dive into the guide!

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