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08.25.2008 at 07:45AM PDT, ID: 23675341
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8.6

Need help joining two columns from two tables, union query?

Asked by c9k9h in SQL Query Syntax

Tags:

Hello,

I have a table that I need to join with two other tables to pull in first and last names. Essentially what I want to do is add two columns to my main table (first and last name) and pull these values from two other tables where the unique identifier is equal. I have an appropriate (unique)  join on all of the tables. I can't do this using a simple join because it will pull in another set of first and last name columns. My only other option I think, would be to join the two tables (throw all the data in one table) I'm pulling the names from and then join on that table. This is going to be a weekly automated process (eventually) so I'm trying to strip out as much manual work as possible. Would I use a case statement or IF statement to do this? something like: If table1.I_SYS_IDV = table2.I_SYS_IDV and =table3.I_SYS_IDV then...  I'm just not sure where to go here... Any help would be greatly appreciated! Below is the code for the simply inner join which brings in the columns for one of the tables (VLTC917A_CID)

SELECT  *
 from bcpm_ddbo.vltc900a_clm clm

inner join (select i_sys_idv,
                                 n_lst,
                                 n_fst
       from bcpm_ddbo.vltc917a_cid) cida

on clm.i_sys_idv = cida.i_sys_idv

I would like to do the same for table vltc907a_gid and put the data in the same n_lst and n_fst columns


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Keywords: Need help joining two columns from tw…
Title
1 Problem with UNION query
2 inner join with multiple tables
3 INNER JOINS AND UNIONS
4 INNER JOIN question
5 Union Query - Query is too complex e…
6 INNER JOIN or UNION?
 
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About this solution

Zone: SQL Query Syntax
Tags: SQL
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Solution Provided By: mwvisa1
Participating Experts: 2
Solution Grade: A
 
 
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