从Oracle SQL Developer执行存储过程

Question

How can I execute the below Stored Procedure? 如何执行以下存储过程？

create or replace procedure squareOf(x IN OUT NUMBER) is
begin
 x:= x*x;
end;

Answer 1

DECLARE
  x NUMBER := 6;
BEGIN
  squareOf(x => x );
  dbms_output.put_line( 'X: '|| x );
END;

returns 36 返回36

Answer 2

@Massie already mentioned one approach using anonymous block. @Massie已经提到了一种使用匿名块的方法。

Another approach is using bind variable in command line like below - 另一种方法是在命令行中使用绑定变量，如下所示：

var c number;
exec :c:= 6;
execute squareOf(:c);
print c;

Answer 3

Since you're asking about 'in SQL Developer' - here's the answer from the IDE perspective. 由于您在询问“在SQL Developer中”，因此这是从IDE角度来看的答案。