CODEWITHSUNDEEP
plsqloracle10gsqlplusdbms-output
dexter
dexter

Reputation: 1457

DBMS_OUTPUT.PUT_LINE not printing

When executing the following code, it just says the procedure is completed and doesn't print the infomation i want it to (firstName, lastName) and then the other values from the select query in a table below.

 CREATE OR REPLACE PROCEDURE PRINT_ACTOR_QUOTES (id_actor char)
AS
CURSOR quote_recs IS
SELECT a.firstName,a.lastName, m.title, m.year, r.roleName ,q.quotechar from quote q, role r,   
rolequote rq, actor a, movie m
where
rq.quoteID = q.quoteID
AND
rq.roleID = r.roleID
 AND
r.actorID = a.actorID
AND
r.movieID = m.movieID
AND
 a.actorID = id_actor;
BEGIN
FOR row IN quote_recs LOOP
DBMS_OUTPUT.PUT_LINE('a.firstName' || 'a.lastName');

end loop;
END PRINT_ACTOR_QUOTES;
/

When setting server output on, I get 

a.firstNamea.lastName
a.firstNamea.lastName
a.firstNamea.lastName
a.firstNamea.lastName

multiple times!

Upvotes: 145

Views: 632530

Answers (10)

Md Shahriar
Md Shahriar

Reputation: 2736

After adding begin and end it works printing.

SET SERVEROUTPUT ON;

begin

DBMS_OUTPUT.PUT_LINE('DEMO WORK');

end;

Upvotes: 1

Smart003
Smart003

Reputation: 1119

All of them concentrate on the for loop but if we use a normal loop then we have to use the cursor record variable. The following is the modified code

 CREATE OR REPLACE PROCEDURE PRINT_ACTOR_QUOTES (id_actor char)
    AS
    CURSOR quote_recs IS
    SELECT a.firstName,a.lastName, m.title, m.year, r.roleName ,q.quotechar from quote q, role r,   
    rolequote rq, actor a, movie m
    where
    rq.quoteID = q.quoteID
    AND
    rq.roleID = r.roleID
     AND
    r.actorID = a.actorID
    AND
    r.movieID = m.movieID
    AND
     a.actorID = id_actor;
    recd quote_recs%rowtype;
    BEGIN
    open quote_recs;
    LOOP
    fetch quote_recs into recs;
    exit when quote_recs%notfound;
    DBMS_OUTPUT.PUT_LINE(recd.firstName||recd.lastName);
    end loop;
    close quote_recs;
    END PRINT_ACTOR_QUOTES;
    /

Upvotes: 0

john
john

Reputation: 37

Maybe you are seeing the output in the script output window. Open Dbms Output window from View menu, and then click the green plus icon and must choose your connection name and press ok. Also make sure to chose the correction connection name in the query window.

Upvotes: 0

SoftwareEngineer
SoftwareEngineer

Reputation: 437

enter image description here

In Oracle SQL Developer, you can follow steps by steps as the below image:

Upvotes: 27

CuriousDev
CuriousDev

Reputation: 428

For SQL Developer

You have to execute it manually

SET SERVEROUTPUT ON

After that if you execute any procedure with DBMS_OUTPUT.PUT_LINE('info'); or directly .

This will print the line

And please don't try to add this

 SET SERVEROUTPUT ON

inside the definition of function and procedure, it will not compile and will not work.

Upvotes: 15

John Prawyn
John Prawyn

Reputation: 1663

I am using Oracle SQL Developer,

In this tool, I had to enable DBMS output to view the results printed by dbms_output.put_line

You can find this option in the result pane where other query results are displayed. so, in the result pane, I have 7 tabs. 1st tab named as Results, next one is Script Output and so on. Out of this you can find a tab named as "DBMS Output" select this tab, then the 1st icon (looks like a dialogue icon) is Enable DBMS Output. Click this icon. Then you execute the PL/SQL, then select "DBMS Output tab, you should be able to see the results there.

Upvotes: 3

Sreenath S
Sreenath S

Reputation: 719

Set Query as below at first line 

SET SERVEROUTPUT ON

Upvotes: 40

Jeevi
Jeevi

Reputation: 3042

this statement

DBMS_OUTPUT.PUT_LINE('a.firstName' || 'a.lastName');

means to print the string as it is.. remove the quotes to get the values to be printed.So the correct syntax is 

DBMS_OUTPUT.PUT_LINE(a.firstName || a.lastName);

Upvotes: 19

Atul Patel
Atul Patel

Reputation: 583

  1. Ensure that you have your Dbms Output window open through the view option in the menubar.
  2. Click on the green '+' sign and add your database name.
  3. Write 'DBMS_OUTPUT.ENABLE;' within your procedure as the first line. Hope this solves your problem.

Upvotes: 42

Justin Cave
Justin Cave

Reputation: 231651

What is "it" in the statement "it just says the procedure is completed"?

By default, most tools do not configure a buffer for dbms_output to write to and do not attempt to read from that buffer after code executes. Most tools, on the other hand, have the ability to do so. In SQL*Plus, you'd need to use the command set serveroutput on [size N|unlimited]. So you'd do something like

SQL> set serveroutput on size 30000;
SQL> exec print_actor_quotes( <<some value>> );

In SQL Developer, you'd go to View | DBMS Output to enable the DBMS Output window, then push the green plus icon to enable DBMS Output for a particular session.

Additionally, assuming that you don't want to print the literal "a.firstNamea.lastName" for every row, you probably want

FOR row IN quote_recs
LOOP
  DBMS_OUTPUT.PUT_LINE( row.firstName || ' ' || row.lastName );
END LOOP;

Upvotes: 243

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