Home Page for the TeradataForum
 

Archives of the TeradataForum

Message Posted: Thu, 13 Feb 2003 @ 13:57:52 GMT


     
  <Prev Next>   <<First <Prev
Next>
Last>>
 


Subj:   Re: Looking for sample Stored Procedure
 
From:   Geoffrey Rommel

  I would like to create a stored procedure that will read inputs from one table and pass these as variables into an sql statement that updates a table. It would move through the variable table until all values have been passed into the sql and the destination table has been updated.  



I'd turn back if I were you.

In Teradata, stored procedures are needed only in unusual circumstances. I think you'll find that straight SQL is easier to code and runs faster.

Here are two techniques that may be appropriate for what you're doing.

update target_table
from source_table
set target_table.col5 = source_table.col5,
target_table.col6 = source_table.col6, ... /* etc. */
where target_table.col1 = source_table.col1
and target_table.col2 = source_table.col2 ... /* etc. */

insert into brand_new_table
select s.old_data, t.new_data, ...
from source_table s,
target_table t
where s.col1 = t.col1
and s.col2 = t.col2 ...;



     
  <Prev Next>   <<First <Prev
Next>
Last>>
 
 
 
 
 
 
 
 
 
  
  Top Home Privacy Feedback  
 
 
Copyright for the TeradataForum (TDATA-L), Manta BlueSky    
Copyright 2016 - All Rights Reserved    
Last Modified: 27 Dec 2016