Question

Guys i can not find solution for this problem , its always giving syntax error what ever i have tried … can you just cast a look for me , thanks

create procedure SP_Insert(in MatchIDP int,in TipID int, in User int)
begin

if exists(
select BetSlipID from betslips where MatchID = MatchIDP and UserID = User)
(
   update Betslips set TipID = 2
)
else
(
   insert into Betslips (MatchID,TipID , UserID) value (MatchIDP,TipID,User)
)
end if
end

I just want to check if data exists in table before i do insert , and i can not use “On duplicate key update” because my primary key does not mean anything , its table where i put in 2-3 foreign keys ….

Answer 1

Your IF syntax is incorrect. It should be:

delimiter ;;

create procedure SP_Insert(in MatchIDP int,in TipID int, in User int)
begin

if exists(
  select * from betslips where MatchID = MatchIDP and UserID = User
) then
  update Betslips set TipID = 2; -- where ?
else
  insert into Betslips (MatchID,TipID , UserID) values (MatchIDP, TipID, User);
end if;

end;;

However, if you will never permit duplicate (MatchID, UserID) entries in your Betslips, why not define a UNIQUE constraint across those columns and then use INSERT ... ON DUPLICATE KEY UPDATE:

ALTER TABLE Betslips ADD UNIQUE INDEX (MatchID, UserID);

INSERT INTO Betslips (MatchID, TipID, UserID) VALUES (?, ?, ?)
ON DUPLICATE KEY UPDATE TipID = 2;