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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. 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();

  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.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?

    You can use the INSERT INTO …. ON DUPLICATE KEY UPDATE statement in MySQL to achieve this. This statement will insert a new row into the table, or if a duplicate key violation occurs (i.e., a row with the same primary or unique key exists), it will update the existing row with the new values. Here’s the SQL query:

  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 · In simple terms, UPSERT is the process of inserting a new record into a MySQL database table if the record does not exist or updating the existing record if it does. This operation is commonly required when you want to ensure that your dataset remains unique while still being able to update records as necessary.

  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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