How do I find the number of records in a cursor?
You can use the %ROWCOUNT attribute of a cursor. You need to open the cursor and then find and count each row.
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How do I count the number of rows of a cursor in SQL?
How to count the number of rows in the cursor in SQL
- DECLARE : Used to define a new cursor.
- OPEN : Used to open a cursor.
- FETCH – Used to retrieve a row from a cursor.
- CLOSE : Used to close a cursor.
- DEALLOCATE – Used to delete a cursor and releases all resources used by the cursor.
Which method returns the total number of rows in the cursor?
%ROWCOUNT attribute A cursor attribute that can be added to the name of a cursor or cursor variable. When a cursor is opened, %ROWCOUNT is set to zero. Before the first fetch, cursor_name%ROWCOUNT returns 0. Thereafter, it returns the number of rows fetched so far.
What is the size of the Oracle cursor?
> How to find the size of the cursor” in Oracle Stored Procedure. The size of a cursor variable in PL/SQL is the same as the size of an integer… since that’s what a cursor variable is. an integer Where number is a reference to the SQL cursor “program” stored in the shared SQL pool (see V$SQLAREA for more details).
What is SQL row count?
%ROWCOUNT returns the number of rows affected by an INSERT, UPDATE, or DELETE statement, or returned by a SELECT INTO statement. The SQL%ROWCOUNT attribute value refers to the most recently executed SQL statement from PL/SQL. To save an attribute value for later use, assign it to a local variable immediately.
Which of the following correctly defines a cursor?
A cursor is a pointer to a temporary area DDL statement. A cursor is a pointer to a permanent work area created in the DDL statement.
Can we pass parameters to the cursor?
Each time you open the cursor, you can pass different arguments to the cursor, resulting in different result sets. In the cursor query, each parameter in the parameter list can be used anywhere a constant is used. Cursors with parameters are also known as parameterized cursors.
How can I find the number of rows in the cursor?
The first row retrieved has the record count. One MUST add specific fetched columns (using * doesn’t work), and one can add additional filters. You can’t make the cursor count at startup. For that you need to fetch the entire cursor; that’s the way to get the cursor count.
What is the value of the cursor in SQL?
This example first declares a cursor and then uses SELECT to display the value of @@CURSOR_ROWS. The setting has a value of 0 before the cursor is opened, and then has a value of -1, to indicate that the cursor’s key pool is populated asynchronously. Here are the result sets.
When does cursor_rows return a negative number?
The return value (n) is the total number of rows in the cursor. @@CURSOR_ROWS returns a negative number if the last cursor was opened asynchronously. Static or keyset handler cursors are opened asynchronously if the sp_configure cursor threshold value exceeds 0 and the number of rows in the cursor result set exceeds the cursor threshold.
What is the value of the cursor key set?
This example first declares a cursor and then uses SELECT to display the value of @@CURSOR_ROWS. The setting has a value of 0 before the cursor is opened, and then has a value of -1, to indicate that the cursor’s key pool is populated asynchronously.