oracle continue

在 Oracle 中，没有像其他编程语言中的 "continue" 关键字，可以直接跳过当前循环的迭代。但是，你可以通过使用条件判断和标签（Label）来模拟 "continue" 的功能。

下面是一个示例，演示了如何在 Oracle 中实现类似于 "continue" 的效果：

<<outer_loop>>
FOR i IN 1..5 LOOP
   IF i = 3 THEN
      CONTINUE; -- 当i等于3时，跳过当前迭代，继续下一次循环
   END IF;

   <<inner_loop>>
   FOR j IN 1..3 LOOP
      IF j = 2 THEN
         CONTINUE outer_loop; -- 在内层循环中跳过当前迭代，并继续外层循环的下一次迭代
      END IF;

      DBMS_OUTPUT.PUT_LINE('i: ' || i || ', j: ' || j);
   END LOOP inner_loop;
END LOOP outer_loop;

在上面的示例中，我们使用了标签 "outer_loop" 来标识外层循环。在内层循环中，我们使用了 "continue outer_loop" 来跳过当前迭代，并继续外层循环的下一次迭代。类似地，使用 "continue" 可以跳过当前迭代，继续下一次循环。

请注意，这种模拟的方式并不是直接的 "continue" 关键字，但它提供了一种实现类似功能的方法。

相关问题

Oracle declare continue

"DECLARE CONTINUE" is not a valid statement or command in Oracle.

In Oracle, DECLARE is used to define variables, constants, and cursors within a PL/SQL block. The CONTINUE keyword is used in loop statements like FOR LOOP or WHILE LOOP to skip the current iteration and move to the next iteration.

Here is an example of using DECLARE to define a variable and CONTINUE in a FOR LOOP:

DECLARE
  x NUMBER := 0;
BEGIN
  FOR i IN 1..10 LOOP
    IF i = 5 THEN
      CONTINUE;
    END IF;
    x := x + i;
  END LOOP;
  DBMS_OUTPUT.PUT_LINE('Sum of numbers from 1 to 10, except 5: ' || x);
END;

This code defines a variable "x" and uses a FOR LOOP to iterate through numbers 1 to 10. When the loop reaches the number 5, it skips that iteration using CONTINUE and moves to the next iteration. Finally, it prints the sum of all numbers except 5.

oracle存储过程 continue

As an AI language model, I am not capable of continuing or executing Oracle stored procedures. However, I can provide information about the CONTINUE statement in Oracle PL/SQL.

The CONTINUE statement is used within loops (like FOR, WHILE or LOOP) to skip the current iteration and proceed with the next iteration. When the CONTINUE statement is executed, the loop skips the remaining statements in the current iteration and jumps to the next iteration.

Here is an example of using the CONTINUE statement in a FOR loop:

BEGIN
  FOR i IN 1..10 LOOP
    IF i = 5 THEN
      CONTINUE;
    END IF;
    DBMS_OUTPUT.PUT_LINE('Iteration ' || i);
  END LOOP;
END;

In this example, when the loop reaches iteration 5, the CONTINUE statement is executed, and the loop skips the DBMS_OUTPUT.PUT_LINE statement and proceeds directly to the next iteration. The output of this code would be:

Iteration 1
Iteration 2
Iteration 3
Iteration 4
Iteration 6
Iteration 7
Iteration 8
Iteration 9
Iteration 10

Note that the CONTINUE statement only applies to the current loop and does not affect any outer loops.