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8.8

Extract unique values from multiple variables

Asked by L00M in PL / SQL

In my package body, I've defined the function to receive the following variables:

...
orgncode1                IN VARCHAR2 DEFAULT NULL,
orgncode2                IN VARCHAR2 DEFAULT NULL,
orgncode3                IN VARCHAR2 DEFAULT NULL,
orgncode4                IN VARCHAR2 DEFAULT NULL,
orgncode5                IN VARCHAR2 DEFAULT NULL,
orgncode6                IN VARCHAR2 DEFAULT NULL,
orgncode7                IN VARCHAR2 DEFAULT NULL,
orgncode8                IN VARCHAR2 DEFAULT NULL,
orgncode9                IN VARCHAR2 DEFAULT NULL,
orgncode10               IN VARCHAR2 DEFAULT NULL,
...

These variables are coming from a web form, and the user might enter the same code on multiple lines. They might also enter different codes on each line. I need to somehow find only the unique values. So, let's say the variables are set as follows:

orgncode1 := '(12345) Some Words';
orgncode3 := '(23456) Other Words';
orgncode5 := '(34567) More Words';
orgncode6 := '(23456) Other Words';
orgncode8 := '(12345) Some Words';

There are only 3 unique (distinct) values there.
I need to somehow extract only the unique values, and then do another lookup using the number in that string. I can handle the lookup, just need help with the unique values.

Oracle Version = 10.2.0.3.0.

Thanks!
[+][-]10/19/09 10:18 AM, ID: 25607064Accepted Solution

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Zone: PL / SQL
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Solution Provided By: Andytw
Participating Experts: 2
Solution Grade: A
 
[+][-]10/19/09 10:26 AM, ID: 25607143Author Comment

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[+][-]10/19/09 12:52 PM, ID: 25608359Author Comment

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