How to do IF NOT EXISTS in SQLite

AngryHacker_9382 0
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I am trying to port this line from MS SQL Server to SQLite

IF NOT EXISTS(SELECT 1 FROM EVENTTYPE WHERE EventTypeName = 'ANI Received') 
    INSERT INTO EVENTTYPE (EventTypeName) VALUES ('ANI Received');

It seems that SQLite does not support IF NOT EXISTS or at least I can't make it work. Am I missing something simple? Is there a workaround?

sqlite sql
4 Answers

How about this?

INSERT OR IGNORE INTO EVENTTYPE (EventTypeName) VALUES 'ANI Received'

(Untested as I don't have SQLite... however this link is quite descriptive.)

Additionally, this should also work:

INSERT INTO EVENTTYPE (EventTypeName)
SELECT 'ANI Received'
WHERE NOT EXISTS (SELECT 1 FROM EVENTTYPE WHERE EventTypeName = 'ANI Received');
beach_538920

you can do "NOT EXISTS" with math, inverting EXISTS output:

SELECT (1-EXISTS(<Your_SELECT>));

Your_SELECT is: SELECT 1 FROM EVENTTYPE WHERE EventTypeName = 'ANI Received'

If exists is 1 , 1-1 result is 0. If exists is 0 , 1-0 result is 1

user_191157200
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