H2数据库-在主键冲突时替换

Question

I would like to make the H2 Database engine replace the conflicting entriy if a entry is being inserted and it conflicts with another record having the same PRIMARY KEY or UNIQUE value.

I can do the same in SQLite with the following:

CREATE TABLE STACKOVERFLOW(FOO TEXT IDENTITY ON CONFLICT REPLACE);

This is called a conflict clause in SQLite.

Can I replicate this behaviour in the H2 SQL dialect?

Answer 1

This can be achieved by using the MERGE INTO statement, in my case I was able to just replace the INSERT statement with MERGE INTO :

MERGE INTO TABLE STACKOVERFLOW('abc');
MERGE INTO TABLE STACKOVERFLOW('abc'); -- will not fail