Question : pgAdmin III query tool “IF” statement ERROR
This is giving me an error in the pgAdmin II query tool.
IF EXISTS(SELECT relname FROM pg_class WHERE relname = ‘Angelina_VR_Data’) THEN
SELECT 2
ELSE
SELECT 1
END IF;
The error is:
ERROR: syntax error at or near “IF”
SQL state: 42601
Character: 1
Thank you in advance for your help. Please Help! This is driving me crazy!!!
Solution: pgAdmin III query tool “IF” statement ERROR
if then else endif is PLPGSQL syntax not SQL syntax. The equivalent is the CASE WHEN THEN ELSE END construct. eg.
testdb=> select case when exists(select 1) then 2 else 1 end;
case
——
2
(1 row)
select case when EXISTS(SELECT relname FROM pg_class WHERE relname = ‘Angelina_VR_Data’) THEN 2 else 1 end;