what is the use of friend function? : Sql dba

0 Answers  

---

how can we know the number of days between two given dates using mysql? : Sql dba

0 Answers  

---

what are the different index configurations a table can have? : Sql dba

0 Answers  

---

How delete a row in sql?

0 Answers  

---

When is the explicit cursor used ?

0 Answers  

---

---

what is the functionality of the function htmlentities? : Sql dba

0 Answers  

---

What is the difference between row level and statement level trigger?

0 Answers  

---

what are the advantages of cursors than procedures?

2 Answers  

---

What are the steps you take to tune(performance tuning) the code in plsql?

4 Answers   Cap Gemini, Infosys, TCS,

---

What is a subquery in sql?

0 Answers  

---

when a procedure /package is getting invalidated?

4 Answers   TCS,

---

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.

2 Answers  

---