mysql on duplicate key ignore
INSERT INTO table_tags (tag) VALUES ('tag_a'),('tab_b'),('tag_c') ON DUPLICATE KEY UPDATE tag=tag;mysql on duplicate key ignore
INSERT INTO table_tags (tag) VALUES ('tag_a'),('tab_b'),('tag_c') ON DUPLICATE KEY UPDATE tag=tag;MySQL INSERT IGNORE Statement
When you use the INSERT statement to add multiple rows to a table and if an error occurs during the processing, MySQL terminates the statement and returns an error. As the result, no rows are inserted into the table.
However, if you use the INSERT IGNORE statement, the rows with invalid data that cause the error are ignored and the rows with valid data are inserted into the table.
The syntax of the INSERT IGNORE statement is as follows:
INSERT IGNORE INTO table(column_list)
VALUES( value_list),
( value_list),
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