Follow Our FB Page << CircleMedia.in >> for Daily Laughter. We Post Funny, Viral, Comedy Videos, Memes, Vines...


Hi Guys,

I have a situation where I need to access the column values from rowtype variable. However, the column names are dynamic.

below is sample code:
declare

Cursor c1 is select * from emp;
Cursor c2 is select column_name from xyztable;
v_c2 c2%rowtype;
v_str varchar2
v_value varchar2(200);

begin

for rec in c1
loop
open c2;---this cursor has column names like EMPLOYEE_ID, FIRST_NAME, LAST_NAME etc.
loop
fetch c2 into v_c2;
exit when c2%notfound;

/* now lets say i want to access value of LAST_NAME from cursor c1, so I am writing below code, however it does not work as expected */

v_str:= 'rec.'|| v_c2.column_name; -- this will give me string like "rec.EMPLOYEE_ID"

v_value:=v_str;



end loop;

end loop;



end;
/

Plz help ASAP.Thanks.

Answers were Sorted based on User's Feedback



Hi Guys, I have a situation where I need to access the column values from rowtype variable. Howev..

Answer / ajitnayak

DECLARE
CURSOR C1 IS SELECT *
FROM DEPT;

CURSOR C2 IS SELECT *
FROM EMP;

v_c2 C2%ROWTYPE;
v_str VARCHAR2(30);
v_res VARCHAR2(35);

BEGIN
OPEN C2;

FOR REC IN C1
LOOP
FETCH C2 INTO v_c2;
EXIT WHEN C2%NOTFOUND;
v_str := 'REC'||v_c2.ENAME;
v_res := V_STR;
DBMS_OUTPUT.PUT_LINE('NAME'||v_c2.ENAME);
END LOOP;
CLOSE C2;
END;

Is This Answer Correct ?    1 Yes 0 No

Hi Guys, I have a situation where I need to access the column values from rowtype variable. Howev..

Answer / abhishek jee

So what this PL/SQL block is trying to do is post as many records from "emp" table as there are records in "dept" table, i.e., if there are 27 records in "dept" table and 107 records in "emp" table, then the output would show the first 27 records from the "emp" table, isn't that so?

Is This Answer Correct ?    0 Yes 0 No

Post New Answer

More SQL PLSQL Interview Questions

Can delete statement be rollbacked?

0 Answers  


What are the basic techniques of indexing?

0 Answers  


What are the types of join in sql?

0 Answers  


What is a dynamic query?

0 Answers  


What is over () in sql?

0 Answers  






How can we implement rollback or commit statement in a trigger?

0 Answers  


How to remove duplicate rows from a table?.

3 Answers  


how many ways we can we find the current date using mysql? : Sql dba

0 Answers  


What does plvtab enables you to do when you showthe contents of pl/sql tables?

0 Answers  


What is an exception in PL/SQL? What are the two types of exceptions?

0 Answers  


Explain cursor types?

0 Answers  


what is the forward decleration in packages?

1 Answers  


Categories