Can we use cursor in stored procedure in Oracle?

Can we use cursor in stored procedure in Oracle?

You would have to declare the Cursor before BEGIN. You would use no INTO clause in the cursor declaration. Then you would have to OPEN the cursor. Then you would FETCH INTO my_ename, my_salary , not one after the other (you fetch rows, not columns).

Can we call cursor in stored procedure?

Cursors are particularly useful in stored procedures. They allow you to use only one query to accomplish a task that would otherwise require several queries. However, all cursor operations must execute within a single procedure.

Can we use cursor in procedure?

To use cursors in SQL procedures, you need to do the following: Declare a cursor that defines a result set. Open the cursor to establish the result set. Fetch the data into local variables as needed from the cursor, one row at a time.

What is cursor in Oracle stored procedure?

Before using an explicit cursor, you must declare it in the declaration section of a block or package as follows:

1. CURSOR cursor_name IS query;
2. OPEN cursor_name;
3. FETCH cursor_name INTO variable_list;
4. CLOSE cursor_name;
5. cursor_name%attribute.

Can we pass cursor as parameter?

No, you can’t pass a static cursor as a parameter.

Can we declare cursor inside begin?

In general, yes you can, you just nest another execution block inside your current one…

How do I add a cursor to a procedure?

To work with cursors you must use the following SQL statements: DECLARE CURSOR. OPEN….Cursors in SQL procedures

1. Declare a cursor that defines a result set.
2. Open the cursor to establish the result set.
3. Fetch the data into local variables as needed from the cursor, one row at a time.
4. Close the cursor when done.

What is the alternative for cursor in SQL?

In this article, I am explaining how you can use cursor alternatives like as WHILE loop, Temporary tables and Table variables. We should use cursor in that case when there is no option except cursor.

What does cursor do in stored procedure?

To handle a result set inside a stored procedure, you use a cursor. A cursor allows you to iterate a set of rows returned by a query and process each row individually.

When would you use a cursor?

Use of Cursor The major function of a cursor is to retrieve data, one row at a time, from a result set, unlike the SQL commands which operate on all the rows in the result set at one time. Cursors are used when the user needs to update records in a singleton fashion or in a row by row manner, in a database table.

What is open cursor in Oracle?

For every SQL statement execution in Oracle Database, certain area in the memory is allocated. Oracle PL/SQL allows you to name this area. This private SQL area is called context area or cursor. The OPEN_CURSORS parameter sets the maximum number of cursors that each session can have open, per session.