Can we use two cursors in a procedure?
Your use of cursors here is totally inappropriate. Your logic in the second cursor is also flawed since it will select any record which inludes the friend, not just the required friendship. If you wanted to fix it you could try giving the second cursor a differant name, but preferably start over.
What is alternative for cursor in SQL Server?
We can also use temporary tables instead of SQL cursors to iterate the result set one row at a time. Temporary tables have been in use for a long time and provide an excellent way to replace cursors for large data sets.
How do I use two cursors in MySQL?
Standard cursor in MySQL allow only one HANDLER. However, when we use multiple cursors like a nested loop, the handler will stop both cursors at the same time. Since we cannot declare two handlers for each cursor, we need to use BLOCK. Below is the example of MySQL’s stored procedure using multiple cursors.
How do I use two cursors in PL SQL?
DECLARE AA NUMBER; CURSOR S IS SELECT ENAME, SAL FROM EMP; CURSOR D IS SELECT ENAME, SAL FROM EMP; NAME EMP. ENAME%TYPE; SALARY EMP. SAL%TYPE; C NUMBER; BEGIN AA := :NUMBER_OF_EMP; SELECT COUNT(EMPNO) INTO C FROM EMP; OPEN S; FOR A IN 1..AA LOOP FETCH S INTO NAME, SALARY; DBMS_OUTPUT.
What can I use instead of SE cursors?
One of the se alternatives are table variable s. Table variables, just like tables, can store multiple results – but with some limitation. According to the Microsoft documentation, a table variable is a special data type used to store a result set for processing at a later time.
How to pass multiple cursors to the same query?
You do this by declaring c1 a SYS_REFCURSOR of otherwise unknown type, and make sure all the columns of each query are of the same type (or close to it). You can’t use a row type, you’ll have to declare the columns individually, and of a generic type that applies to all queries. But the following does work.
Is there anyway to re-use a loop with a different cursor?
I need them to run when I call them in the order I want to call them, which brings me back to my original question is there anyway to re-use a loop with a different cursor? Thanks again. I am creating a package (Oracle 10) in which I have 4 different select statements (possibly more to come) all of which I create a cursor for and get my data.
How to combine the result set from two ref cursors?
How to combine the result set from two ref cursors. Thanks for the question, Shailandra. Viewed 10K+ times! This question is I have five functions returning set of rows thru ref cursor. I need to do the union or intersection on the their result set and return the final set of rows.