on 08-23-2017 7:57 AM
hi,
here i tried to give discount based on quantity ordered by using procedure. but i dont know how assign a value of column to the variable in procedure.
here my code:
create column table "KABIL_PRACTICE"."SALES_IF_ELSE"
(
"SALES_ID" integer,
"PRODUCT_ID" integer,
"QTY" integer,
"DISCOUNT" integer,
"SALES_AMOUNT" Double
);
insert into "KABIL_PRACTICE"."SALES_IF_ELSE" ("SALES_ID","PRODUCT_ID","QTY","SALES_AMOUNT") values (1,101,15,1500);
insert into "KABIL_PRACTICE"."SALES_IF_ELSE" ("SALES_ID","PRODUCT_ID","QTY","SALES_AMOUNT") values (2,102,25,2500);
insert into "KABIL_PRACTICE"."SALES_IF_ELSE" ("SALES_ID","PRODUCT_ID","QTY","SALES_AMOUNT") values (3,103,35,3500);
insert into "KABIL_PRACTICE"."SALES_IF_ELSE" ("SALES_ID","PRODUCT_ID","QTY","SALES_AMOUNT") values (4,104,40,4000);
insert into "KABIL_PRACTICE"."SALES_IF_ELSE" ("SALES_ID","PRODUCT_ID","QTY","SALES_AMOUNT") values (5,105,27,2700);
insert into "KABIL_PRACTICE"."SALES_IF_ELSE" ("SALES_ID","PRODUCT_ID","QTY","SALES_AMOUNT") values (6,106,32,3200);
insert into "KABIL_PRACTICE"."SALES_IF_ELSE" ("SALES_ID","PRODUCT_ID","QTY","SALES_AMOUNT") values (7,107,19,1900);
create procedure "KABIL_PRACTICE"."IF_ELSE_DISC"
language sqlscript
as begin
declare QTY integer ;
select "QTY" from "KABIL_PRACTICE"."SALES_IF_ELSE" := QTY;
if ( QTY > 25)
then
update "KABIL_PRACTICE"."SALES_IF_ELSE" set "DISCOUNT" = 5;
else if
update "KABIL_PRACTICE"."SALES_IF_ELSE" set "DISCOUNT" = 1;
end if;
end if;
end;
anyone help me....
I've already provided you with the answer (https://stackoverflow.com/questions/45832931/how-to-assign-a-variable-in-procedure-in-sap-hana):
This is a classic case of not using SQL enough but instead trying to force an imperative programming style on a SQL database.
All you want to do is update a table based on a condition, isn't it?
In that case, there is no need for procedural logic at all (and that's true for any SQL database).
UPDATE "KABIL_PRACTICE"."SALES_IF_ELSE"
SET "DISCOUNT"= (CASE
WHEN "QTY" >25 THEN 2
ELSE 1
END);
This will store the computed "DISCOUNT"
value in the table with no looping, in a single command.
In case this is not what you want to do, please refine the problem description.
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