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Golden Bean has improved Performance on Oracle tables

Rama_GAug 27 2019 — edited Aug 28 2019

Hi All,

I tried to improve performance on some of the Oracle tables by using SQL queries.

However, in my organisation Golden Bean is enabled and it has improved the performance way faster.

Just trying to understand how this can be so much faster. I am also reading some of the blogs related to it.

Regards

Rams

Comments

Lokanath Giri
wm_concat is un-documented hence not supported by oracle.
Try some alternative 
select 
rtrim (xmlagg (xmlelement (e, ename || ',')).extract ('//text()'), ',') enames
from 
emp
where deptno=30
Some good example available check this.
http://www.oracle-base.com/articles/misc/StringAggregationTechniques.php

Edited by: Lokanath Giri on १० जनवरी, २०१२ १२:५४ अपराह्न
2 people found this helpful
Jhon
correct name of ur Function:

SELECT lengt(ename) FROM EMP WHERE deptno=10;
ORA-00904: "LENGT": invalid identifier
00904. 00000 - "%s: invalid identifier"
*Cause:
*Action:
Error at Line: 8 Column: 7

SELECT length(ename) FROM EMP WHERE deptno=10;
it return rows sucessfully
1 person found this helpful
AlexAnd
>
WM_CONCAT is undocumented and unsupported by Oracle, meaning it should not be used in production systems.
>
so change your way

btw

for me 
SQL> select * from v$version;

BANNER
----------------------------------------------------------------
Oracle Database 10g Enterprise Edition Release 10.2.0.1.0 - Prod
PL/SQL Release 10.2.0.1.0 - Production
CORE    10.2.0.1.0      Production
TNS for 32-bit Windows: Version 10.2.0.1.0 - Production
NLSRTL Version 10.2.0.1.0 - Production

SQL> set serveroutput on
SQL> DECLARE
  2   ex varchar2(200);
  3   BEGIN
  4   SELECT wm_concat(ename) INTO EX FROM EMP WHERE deptno=30;
  5   DBMS_OUTPUT.PUT_LINE(EX);
  6   END;
  7  /
ALLEN,WARD,MARTIN,BLAKE,TURNER,JAMES

PL/SQL procedure successfully completed.

SQL>
try wmsys.wm_concat
1 person found this helpful
cool-2466583
Hi,

Please check the database version you are using.

wm_concat is available from 11g Release 2.

Regards,
Wilson
1 person found this helpful
BluShadow
Answer
Cool wrote:
Hi,

Please check the database version you are using.

wm_concat is available from 11g Release 2.
Incorrect.

wm_concat is undocumented and shouldn't be used.

Even Tom Kyte says so... 9967699

From 11gR2, there is a new documented function called LISTAGG...

http://docs.oracle.com/cd/E11882_01/server.112/e26088/functions089.htm
Marked as Answer by 883038 · Sep 27 2020
1 - 5

Post Details

Added on Aug 27 2019
#sql-pl-sql
19 comments
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