AdamLazaruso AdamLazaruso - 4 months ago 14
SQL Question

SQL - IF EXISTS UPDATE ELSE INSERT Syntax Error

I have the following SQL query:

IF EXISTS(SELECT * FROM component_psar WHERE tbl_id = '2' AND row_nr = '1')
UPDATE component_psar
SET col_1 = '1', col_2 = '1', col_3 = '1', col_4 = '1', col_5 = '1',
col_6 = '1', unit = '1', add_info = '1', fsar_lock = '1'
WHERE tbl_id = '2' AND row_nr = '1'
ELSE
INSERT INTO component_psar (tbl_id, row_nr, col_1, col_2, col_3, col_4,
col_5, col_6, unit, add_info, fsar_lock)
VALUES ('2', '1', '1', '1', '1', '1', '1', '1', '1', '1', 'N')


Ignore the fact that I'm trying to set every column to '1'. It's just example data. :)

Anyways, executing this query returns a syntax error:

#1064 - You have an error in your SQL syntax; check the manual that corresponds to your
MySQL server version for the right syntax to use near 'IF EXISTS(SELECT * FROM
component_psar WHERE tbl_id = '2' AND row_nr = '1') UP' at line 1


I've been staring at it and searching the internet for a good half an hour and just can't find this supposed syntax error. It's probably going to end up being something really dumb that I'm missing but I could use you guys' help on this one.

Answer
INSERT INTO component_psar (tbl_id, row_nr, col_1, col_2, col_3, col_4, col_5, col_6, unit, add_info, fsar_lock)
VALUES('2', '1', '1', '1', '1', '1', '1', '1', '1', '1', 'N')
ON DUPLICATE KEY UPDATE col_1 = VALUES(col_1), col_2 = VALUES(col_2), col_3 = VALUES(col_3), col_4 = VALUES(col_4), col_5 = VALUES(col_5), col_6 = VALUES(col_6), unit = VALUES(unit), add_info = VALUES(add_info), fsar_lock = VALUES(fsar_lock)

Would work with tbl_id and row_nr having UNIQUE key.

This is the method DocJonas linked to with an example.

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