How write primary and foreign key relationship between two tables without using constraints? u can use any of procedure/function/trigger and any sql?

1 Answers   Parexel,

---

What are the steps for performance tuning.

0 Answers  

---

What is the difference between functions, procedures, and packages in pl/sql?

0 Answers  

---

What is multiple columns?

0 Answers  

---

What is a self join ?

6 Answers   BirlaSoft,

---

What is the purpose of my sql?

0 Answers  

---

what is constraining table?

2 Answers  

---

What operating systems are supported by oracle sql developer?

0 Answers  

---

What do you understand by pl/sql records?

0 Answers  

---

What are the data types allowed in a table?

3 Answers  

---

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  

---

need to split a string into separate values. eg. col1 col2 ---------- 100 - 'a,b,c' 200 - 'a,x,d,e' 300 - 'c' result: value count ------------- a - 2 b - 1 c - 2 etc.

2 Answers  

---