Running this, I see no output other than 'completed'
set serveroutput on
declare
message varchar2(20) := 'Hello, World';
begin
dbms_output.put_line(message);
end;
/
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In Oracle sql developer the output not show after put set serveroutput on comment.bhuvi bhuvana– bhuvi bhuvana2022-03-20 07:19:47 +00:00Commented Mar 20, 2022 at 7:19
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The window contains SET SERVEROUTPUT ON. But, did you actually execute it before running that PL/SQL block?Littlefoot– Littlefoot2022-03-20 07:34:17 +00:00Commented Mar 20, 2022 at 7:34
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Was the "Dbms Output" pane already open and connected when you ran it; and did you click 'run statement' or 'run script'?Alex Poole– Alex Poole2022-03-20 10:27:51 +00:00Commented Mar 20, 2022 at 10:27
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1 Answer
I have seen this behavior before, and it's always because your database is too old.
Are you using something older than 11gR2 on the database? If so, our newer jdbc drivers no longer support DMBS_OUTPUT polling on 9i and 10g of the Database.
Your options are:
- find an older copy of SQL Developer, which uses an older JDBC driver or
- Upgrade your database to something from this decade (19c would be best)
Obviously option 1 is the easiest and option 2 is the most desirable.
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