REPLACE
You can execute REPLACE statements to insert rows to tables or replace rows in tables.
Syntax
REPLACE [LOW_PRIORITY | DELAYED]
[INTO] [schema_name.]tbl_name
[(col_name [, col_name] ...)]
{VALUES | VALUE} (value_list) [, (value_list)]
REPLACE [LOW_PRIORITY | DELAYED]
[INTO] [schema_name.]tbl_name
SET assignment_list
REPLACE [LOW_PRIORITY | DELAYED]
[INTO] [schema_name.]tbl_name
[(col_name [, col_name] ...)]
SELECT ...
value_list:
value [, value] ...
value:
{expr | DEFAULT}
assignment_list:
assignment [, assignment] ...
assignment:
col_name = value
Limits on syntax
The following REPLACE statements are not supported:
REPLACE statements that contain PARTITION functions
REPLACE INTO tb PARTITION (p0) (id) VALUES(7);
REPLACE statements that contain column names
REPLACE INTO tb(id1, id2) VALUES(1, id1 + 1);
References
REPLACE statements for the native MySQL