为什么 PLSQL Anonymous 块完成时没有输出?

2021-12-24 00:00:00 sql oracle plsql

我刚刚开始使用 PL/SQL，我尝试运行以下代码，并且我正在完成匿名块，但我认为我应该获得测试输出.有谁知道我做错了什么?

I'm just getting into PL/SQL, and I tried to run the following code, and I am getting anonymous block completed, but I think I should be getting Testing output. Does any know what I am doing wrong?

DECLARE
   message varchar2(20) := 'Testing output';
BEGIN
   dbms_output.put_line(message);
END;
/

推荐答案

查看 DBMS_OUTPUT 取决于程序.

Viewing the DBMS_OUTPUT depends on the program.

SQL*Plus 和 Oracle SQL Developer

首先运行 SET SERVEROUTPUT ON;.这就是 SQL*Plus 或最新版本的 Oracle SQL Developer 所需的全部内容.

Run SET SERVEROUTPUT ON; first. This is all that's necessary in SQL*Plus or recent versions of Oracle SQL Developer.

SET SERVEROUTPUT ON;
begin
    dbms_output.put_line('Testing output');
end;
/

PL/SQL 开发人员

自动检测输出并显示在输出"选项卡中.

Output is automatically detected and displayed in the "Output" tab.

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