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What Is An Oracle Cursor Entry That Was Not Found And How To Fix It?

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    Here are some easy ways to fix the Oracle Cursor Record Not Found problem.

    Each precise cursor and variable has four attributes: % FOUND , % ISOPEN % NOTFOUND and above % ROWCOUNT . When these attributes are added to a cursor or variable, these attributes provide useful information about the execution performed by the data manipulation instruction. See “Using Cursor Expressions” for more information.

    The SQL game cursor has additional attributes % BULK_ROWCOUNT and % BULK_EXCEPTIONS . See Cursor “sql.

    for more information. from
    Description of the illustration cursor_attribute.gif


    cursor_name

    cursor_variable_name

    Cursor of the aspect (or parameter) pl / sql, previously declared in the previous area. Face = “arial,


    % FOUND attribute

    A cursor attribute that can sometimes be added to the name of a cursor or cursor variable. Before you start repairing the cursor, your Windows. cursor_name% FOUND returns NULL . For aThis returns TRUE if the last retrieval returned a real string, or FALSE if the last retrieval did not return a large string.

    host_cursor_variable_name

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  • A cursor element declared in PL / SQL host weather and passed to PL / SQL like any binding variable. The data type of the shared host cursor variable is compatible, including the return type of any PL / SQL cursor variable. The host variable must be preceded by a colon.

    % ISOPEN attribute

    A cursor attribute can be added to the name of a cursor or other cursor. If cursor cursor_name% ISOPEN is open, TRUE is returned; Otherwise, FALSE is returned.

    Cursor attribute% NOTFOUND

    oracle cursor record not found

    attribute that can be added to the name of a cursor in a path, also known as a cursor variable. Before the first fetch from an open cursor, cursor_name% NOTFOUND sales NULL . It then returns FALSE if the last call returned a short message, or TRUE if during the lastcall failed to return any lines.

    % ROWCOUNT attribute

    Cursor credit that can be added to this cursor name, or possibly to a cursor variable. When the cursor was open, % ROWCOUNT was set to zero. Before the largest fetch, cursor_name% ROWCOUNT returns 0. Then it returns the number of rows currently selected. A number that is randomly incremented if the last sample returned the correct string.

    Cursor edges apply to each cursor cursor, also known as a variable. For example, you can specify multiple cursors and then use % FOUND , otherwise % NOTFOUND , to specify which cursors need rows to get links to. Likewise, your family members can use % ROWCOUNT to see how many rows have been retrieved so far.

    If a slider or adjustable slider is not open, these predefined % FOUND are referenced with % NOTFOUND or % ROWCOUNT Exception INVALID_CURSOR .

    When opening kuThe rcp or sometimes cursor variable identifies the series that match the associated query and generates the position of the result. The rows are retrieved one by one from the collection result.

    If each SELECT INTO statement returns more than one row, pl / sql throws a default TOO_MANY_ROWS exception and sets % ROWCOUNT < / code>, where 1 is not the actual number of lines matching the query.

    Before the first request, % notfound evaluates to NULL . If FETCH never succeeds, the EXIT WHEN clause can usually never be TRUE , and the loop never ends. For security reasons, the EXIT phrase should be used instead:

    oracle cursor record not found

     QUIT IF c1% NOTFOUND OR c1% NOTFOUND IS NULL;

    You can use the most important cursor attributes in procedural statements, but never in SQL statements.

     APPLY   CURSOR emp_cur SELECTED * FROM WORKERS ORDER BY employee_ID;   emp_rec employee% ROWTYPE;TO BEGIN   OPEN emp_cur;   LOOP - endless loop over the table and get two erasdnikov      FETCH emp_cur INTO emp_rec;      IF emp_cur% FOUND then        dbms_output.put_line ('Employee #' || emp_rec.employee_id ||            lol this is' || emp_rec. Surname);     DIFFERENT         dbms_output.put_line ('--- Processing interrupted ---');         LOG OFF;      END IF;   END OF LOOP;   CLOSE emp_cur;END;/

    Instead of using % FOUND in the actual IF statement, the following example creates % NOTFOUND in the EXIT statement WHEN .

     APPLY   CURSOR emp_cur SELECT * FROM employee ORDER BY employee ID;  emp_rec employee% ROWTYPE;TO BEGIN   OPEN emp_cur;   LOOP - browse your computer and get every employee      FETCH emp_cur INTO emp_rec;      QUIT WHEN emp_cur% NOTFOUND;      dbms_output.put_line ('Employee #' || emp_rec.employee_id ||         'will be || 'emp_rec.name);   END OF LOOP;   CLOSE emp_cur;END;/
     IF NOT (emp_cur% ISOPEN) THEN   OPEN emp_cur;END IF;FETCH emp_cur INTO emp_rec;

    The following PL / SQL block uses % ROWCOUNT to get the names and salaries of your five currently highest paid employees:

     APPLY   CURSOR - c1   CHOOSE last name, cell IDmine, salary from an employee      ORDER take DESC; - Start with the highest paid employee   my_employee_name.name% TYPE;   my_empno staff.employee_id% TYPE;   my_sal staff.salary% TYPE;TO BEGIN   OPEN c1;   RIBBON      GET c1 IN my_name, my_empno, my_sal;      EXIT WHEN (c1% ROWCOUNT 5)> OR (c1% NOTFOUND);      dbms_output.put_line ('Employee i || my_name ||' ('|| my_empno ||') make '|| my_sal);   END OF LOOP;   CLOSE c1;END;/

    The following example throws an exception if many lines are almost always deleted:

     REMOVE FROM Actions WHERE the status is "BAD DEBTS";IF SQL% ROWCOUNT> 10 THEN    RAISE out_of_bounds;END IF;

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