Being a .net technologies guy I never be go on database level. but last night I have to face a small problem . I have to done 50000 record entries in one of table with relation to parent table. I used Pl Sql cursor. You already know much about Cursor they exists both in Oracle and Sql server and even My Sql. Following is a solution of insertion
Using Cusros so I insert 50000 in child table with respect to parent table..
DECLARE
/* Output variables to hold the result of the query: */
a Teacher.teacher_code %TYPE;
/* Cursor declaration: */
CURSOR T1Cursor IS
SELECT teacher_CodeFROM Teacher
FOR UPDATE;
BEGIN
OPEN T1Cursor;
LOOP
/* Retrieve each row of the result of the above query
into PL/SQL variables: */
FETCH T1Cursor INTO a;
/* If there are no more rows to fetch, exit the loop: */
EXIT WHEN T1Cursor%NOTFOUND;
/* Delete the current tuple: */
/* Insert the reverse tuple: */
INSERT INTO Teacher_ChildTable (Teacher_code,Class_code,Teaching_Mode,Period) VALUES(a,’0324′,’01’,450);
END LOOP;
/* Free cursor used by the query. */
CLOSE T1Cursor;
END;
Have a nice day.