Insert Or Ignore In SQLite

July 2015

CREATE TABLE example_table(example_item TEXT UNIQUE);

Then do this:

INSERT OR IGNORE 
INTO example_table(example_item) 
VALUES("alfa bravo");

Note that with this approach an AUTOINCREMENT counter increases even if a row isn't inserted. If that bugs you, you can either not use AUTOINCREMENT (e.g. use the generic ROWID) or use a different approach.

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References

SQLite Create Table