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javasqlderbyjavadb

UPDATE WHERE in MERGE

I'm trying to run the below query but I keep getting back:

Error code 30000, SQL state 42X01: Syntax error: Encountered "WHERE" at line 5, column 38.

MERGE INTO FOO
USING BAR
ON FOO."NAME" = BAR."NAME"
WHEN MATCHED THEN
    UPDATE SET FOO."NAME" = 'qwerty' WHERE FOO."AGE" > 30
WHEN NOT MATCHED THEN
    INSERT (guid) values('qwerty')

If I remove WHERE FOO."AGE" > 30 then it seems to be fine though. Is it not possible to specify a WHERE clause in the UPDATE of a MERGE?

I'm using the latest apache derby embedded database version, 10.12.1.1

Solution

  • Can you try this:

    MERGE INTO FOO
USING BAR
ON FOO."NAME" = BAR."NAME"
AND FOO."AGE" > 30
WHEN MATCHED THEN
    UPDATE SET FOO."NAME" = 'qwerty'
WHEN NOT MATCHED THEN
    INSERT (guid) values('qwerty')