mysql insert into ignore on duplicate key

MYSQL INSERT INTO IGNORE ON DUPLICATE KEY UPDATE

MYSQL INSERT INTO IGNORE ON DUPLICATE KEY UPDATE

Side effects are propagated to replication slaves too.īoth REPLACE and INSERT.ON DUPLICATE KEY UPDATE are non-standard, proprietary inventions specific to MySQL.Triggers that fire on DELETE are executed unnecessarily.The reason insert ignore and replace into. But for some reason it doesn't seem to work and always return the error: Not all parameters were used.

Dependent rows with foreign keys may be deleted (if you use cascading foreign keys) or else prevent the REPLACE. I use the code below to insert a row into the Binders table and to check and handle the duplicate key problem. So I've been trying to execute this query using python 2.7.15 using nnector.If you use REPLACE, MySQL actually does a DELETE followed by an INSERT internally, which has some unexpected side effects: Inserting a row to a partitioned table, but the values you insert don't map to a partition.

Inserting a NULL into a column with a NOT NULL constraint.

Inserting a duplicate key in columns with PRIMARY KEY or UNIQUE constraints.

But the statement won't generate an error. For the reasons for this, see Section 13.2.7.3, INSERT DELAYED Statement, Inserting into a table requires the INSERT privilege for the table. In MySQL 8.0, the DELAYED keyword is accepted but ignored by the server. If you use INSERT IGNORE, then the row won't actually be inserted if it results in a duplicate key. SELECT Statement, and Section 13.2.7.2, INSERT.

Mysql insert into ignore on duplicate key