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03.27.2007 at 12:05AM PDT, ID: 22474255
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8.8

Dynamic Columns Selection

Asked by riazpk in Oracle Database

Tags: , ,

Dear Gurus,
I've following table structures alongwith some data:

create table t1(column_name varchar2(10));
insert into t1 values ('C1');
insert into t1 values ('C2');

create table t2(c1 number, c2 number, flag varchar2(1));
insert into t2 values(1,1,'O');
insert into t2 values(2,1,'N');

t1 contains column names and t2 contains the column values with a flag (O denotes Old Values, N New values).

I want to do some processing by selecting the data from t2 but only for those columns which are listed in t1. My problem is that  in t1 my data is in the form of column values while in t2 the value to be compared is actually column name. How should i do this?Start Free Trial
[+][-]03.27.2007 at 12:34AM PDT, ID: 18798339

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[+][-]03.27.2007 at 02:22AM PDT, ID: 18798590

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About this solution

Zone: Oracle Database
Tags: dynamic, column, selection
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Solution Provided By: GGuzdziol
Participating Experts: 3
Solution Grade: A
 
 
[+][-]03.27.2007 at 04:22AM PDT, ID: 18798942

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[+][-]03.27.2007 at 04:26AM PDT, ID: 18798967

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[+][-]03.27.2007 at 01:31PM PDT, ID: 18803353

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