Question

I am learning oracle and i am beginner. Please solve my following error.

create or replace
PROCEDURE SP_SALE_SELECT
( para1 OUT NVARCHAR2
, para2 OUT NVARCHAR2
, action IN NVARCHAR2
) AS
BEGIN
  IF action = 1 then
    Select * From VI_Sale;
  Else if action = 2 then
    Select * From VI_Sale
    WHERE SaleID = para1;
  Else if action = 3 then
    Select * From VI_Sale
    Where CustomerID = para1;
  Else if action = 4 then
    Select * From VI_Sale
    where SaleID = para1 and CustomerID = para2;
 End if;
END SP_SALE_SELECT;

Error(20,5): PLS-00103: Encountered the symbol “SP_SALE_SELECT” when
expecting one of the following: if

Answer 1

You use ELSE IF instead of ELSEFIF (no space) so you are creating additional ifs which you should close.

create or replace
PROCEDURE SP_SALE_SELECT
( para1 OUT NVARCHAR2
, para2 OUT NVARCHAR2
, action IN NVARCHAR2
) AS
BEGIN
  IF action = 1 THEN
    Select * From VI_Sale;
  ElSEIF action = 2 THEN
    Select * From VI_Sale
    WHERE SaleID = para1;
  ElSEIF action = 3 THEN
    Select * From VI_Sale
    Where CustomerID = para1;
  ELSEIF action = 4 then
    Select * From VI_Sale
    where SaleID = para1 and CustomerID = para2;
 End if;
END;