How can I convert single byte kana characters into multi
byte kana characters and vice-versa.
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17. Display the order number and average item cost for each order.
> CREATE OR REPLACE FUNCTION FACTORIAL_1(factstr varchar2 ) 2 RETURN NUMBER AS 3 new_str VARCHAR2(4000) := factstr||'*' ; 4 fact number := 1 ; 5 BEGIN 6 7 WHILE new_str IS NOT NULL 8 LOOP 9 fact := fact * TO_NUMBER(SUBSTR(new_str,1,INSTR(new_str,'*')-1)); 10 new_str := substr( new_str,INSTR(new_str,'*')+1); 11 END LOOP; 12 13 RETURN fact; 14 15 END; explanation Above program?
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2. Display the item number and total cost for each order line (total cost = no of items X item cost). Name the calculated column TOTAL COST.
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