On Duplicate Key not working in SQLite

问题

In my table, id is the primary key, but this code not working in sqlite3:

insert into text (id,text) VALUES(150574,'Hello') ON DUPLICATE KEY UPDATE 'text' = 'good'

Please help me.

回答1:

INSERT .... ON DUPLICATE don't exist in SqLite. But you can use INSERT OR REPLACE to achieve the effect like the following.

INSERT 
    OR REPLACE
INTO
    text (id, text)  
VALUES
    (150574,
        (SELECT
           CASE 
              WHEN exists(SELECT 1  FROM text WHERE id=150574)
              THEN 'good' 
              ELSE 'Hello' 
           END
         )
    )

Ref: http://www.sqlite.org/lang_insert.html

来源：https://stackoverflow.com/questions/23622504/on-duplicate-key-not-working-in-sqlite