![]() ![]() The following UPSERT query will return " 1" for the " hits" column when the inner query does not return a match. This allows you to have the ability to set a default value in the event that the inner query does not return a match. In this syntax, using the COALESCE function allows you to specify two or more arguments, where the function returns the first non-null argument. INSERT OR REPLACE INTO `table` (`unique_col`, `some_col`) You can use the following INSERT OR REPLACE syntax to perform an UPSERT: For example, the following query will result in a new record being added to the table:Īfter this query is executed, the table will look like the following: When the uniqueness constraint does not fail, a new record is created. This would result in " hits" column being incremented by 1 as the slug " lorem-ipsum" already exists: ON CONFLICT (`slug`) DO UPDATE SET hits = hits + 1 INSERT INTO `blog_post` (`title`, `slug`) ![]() When you use an UPSERT query like the following, it would perform an UPDATE when the INSERT violates the uniqueness constraint: This would result in the following SQLite table: INSERT INTO `blog_post` (`title`, `slug`) VALUES In this UPSERT operation, the " ON CONFLICT" clause specifies the conflict target, which is the column (or columns) that must have a unique constraint or unique index defined for the UPSERT operation to work correctly.įor example, let's suppose you have the following " blog_post" table, with the " slug" column having the UNIQUE constraint: ON CONFLICT (`unique_col`) DO UPDATE SET `some_col` = 'some_col_new_val' INSERT INTO table (`unique_col`) VALUES ('unique_val') Starting with SQLite v3.24.0, you can use the ON CONFLICT clause to perform an UPSERT, using the following syntax: Using either of these will allow you to perform an INSERT or UPDATE in a single query, based on whether a uniqueness constraint is violated or not. In SQLite, you can do an UPSERT operation in the following ways: ![]()
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