On 2016/03/09 5:03 PM, Tilsley, Jerry M. wrote: > All, > > I'm trying to use the INSERT OR REPLACE syntax so that I don't have to worry > about duplicate entries without creating a trigger. Using the schema: > CREATE TABLE messages (id numeric); > > and using the SQL: > insert or replace into messages values (1); > > Why does this result in multiple rows of the same value? I'm I just not > understanding the syntax correctly?
Nothing wrong with the syntax. I assume you don't have a unique constraint (Index) on that column, so the DB has no trouble adding more than one entry. The REPLACE mechanism only works if it Can't insert a row because one already exists AND the DB does not allow more than one to exist, only then does it replace the previous. Hope that was the problem! Ryan
