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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.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.

  3. dba.stackexchange.com › questions › 99120mysql - If exists then update else insert - Database...

    29 kwi 2015 · IF EXISTS (select * from users where username = 'something') THEN. update users set id= 'some' where username = 'something'; ELSE. insert into users (username) values ('something'); END IF; end $$. delimiter ; and call it like this: call select_or_insert();

  4. www.delftstack.com › howto › mysqlHow to Update Record if It Exists Else Insert It in the MySQL...

    2 lut 2024 · Use REPLACE INTO to Update the Record if It Exists Else Insert It in the MySQL Table. One approach is to use the REPLACE statement if you want to truly replace rows when the INSERT commands would fail due to duplicate UNIQUE or PRIMARY KEY values as described previously.

  5. 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.

  6. 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; Here if a product with id=1 already exists, its quantity will be updated by adding 10 more to it. Otherwise, a new product will be ...

  7. stackoverflow.com › questions › 17265522sql - Conditional UPDATE in MySQL - Stack Overflow

    23 cze 2013 · I am trying to UPDATE values from a table, but I need to add some conditions. I found the function CASE, but I am not if it is the best method. Here is an example. My table is 'relation': userid1 | userid2 | name1 | name2. I got for example: SELECT * . FROM relation . WHERE (userid1 = 3 AND userid2 = 4) OR (userid1 = 4 AND userid2 = 3); . Output:

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