Error While generating pascal's triangle in plSQL - sql

Question

well I'm pretty new to plSQL and I can't seem to figure out some errors I'm getting while trying to generate a pascal's triangle
Here's the code:
SET SERVEROUTPUT ON;
DECLARE
N NUMBER;
I NUMBER;
J NUMBER;
K NUMBER;
L NUMBER;
T NUMBER;
S NUMBER;
BEGIN
DBMS_OUTPUT.PUT_LINE('ENTER THE LIMIT');
N:=&N;
I:=0;
T:=N-2;
S:=0;
L:=0;
WHILE (I<N) LOOP
J:=0;
WHILE (J<T) LOOP
DBMS_OUTPUT.PUT(' ');
J:=J+1;
END LOOP;
K:=0;
WHILE (K<=S) LOOP
IF (K<=I) THEN
DBMS_OUTPUT.PUT(K+1);
L:=K;
ELSE
L:=L-1;
DBMS_OUTPUT.PUT(L+1);
END IF;
K:=K+1;
END LOOP;
DBMS_OUTPUT.PUT_LINE('');
T:=T-1;
S:=S+2;
END LOOP;
END;
The errors are
Error report -
ORA-20000: ORU-10027: buffer overflow, limit of 1000000 bytes
ORA-06512: at "SYS.DBMS_OUTPUT", line 32
ORA-06512: at "SYS.DBMS_OUTPUT", line 97
ORA-06512: at line 29
20000. 00000 - "%s"
*Cause: The stored procedure 'raise_application_error'
was called which causes this error to be generated.
*Action: Correct the problem as described in the error message or contact
the application administrator or DBA for more information.

Answer 1

Neither I nor N are ever updated, so you have an infinite loop. Other than that, the error is indicating that the DBMS_OUTPUT buffer is being exceeded. It's default buffer size is 1,000,000 bytes, though you can adjust that with an appropriate DBMS_OUTPUT.ENABLE call or SET SERVEROUTPUT SIZE statement.

Answer 2

The problem you're having has to do with SQL*Plus, the Oracle SQL client, rather than PL/SQL, the programming language. Change the line which says SET SERVEROUTPUT ON to
SET SERVEROUTPUT ON SIZE UNLIMITED
This error may, however, indicate you've got an infinite loop, so be careful. Note that I never appears to be incremented and N is never decremented, so the loop started at WHILE (I<N) LOOP may not terminate.
Best of luck.