Re: Using SQL to "mix" the records in a file

[Alan Shore <AlanShore@xxxxxxxx>]

Thanks for your reply Rob
In answer to your question of "Who cares?" the answer is ---Me
You are correct, there are other columns in this file, but I only mentioned
the columns that I need to deal with for this situation
I'm trying to get a test file, where the 2 record types are mingled so that
I can test another set of programs
The mingle will be what is happening when we go live


Alan Shore
Programmer/Analyst, Direct Response
E:AShore@xxxxxxxx
P:(631) 200-5019
C:(631) 880-8640
"If you're going through Hell, keep going" - Winston Churchill


                                                                       
             rob@xxxxxxxxx                                             
             Sent by:                                                  
             midrange-l-bounce                                          To
             s@xxxxxxxxxxxx            Midrange Systems Technical      
                                       Discussion                      
                                       <midrange-l@xxxxxxxxxxxx>       
             08/09/2010 03:10                                           cc
             PM                                                        
                                                                   Subject
                                       Re: Using SQL to "mix" the records
             Please respond to         in a file                       
             Midrange Systems                                          
                 Technical                                             
                Discussion                                             
             <midrange-l@midra                                         
                 nge.com>                                              
                                                                       
                                                                       




So let's say your data contains only two columns:  RECID and TS.  And your
sample data is:
A     2010-08-09-08:01:35.00000
A     2010-08-09-08:01:35.00000
A     2010-08-09-08:01:35.00000
A     2010-08-09-08:01:35.00000
A     2010-08-09-08:01:35.00000
A     2010-08-09-08:01:35.00000
B     2010-08-09-08:01:35.00000
B     2010-08-09-08:01:35.00000
B     2010-08-09-08:01:35.00000
B     2010-08-09-08:01:35.00000
B     2010-08-09-08:01:35.00000
B     2010-08-09-08:01:35.00000

And you want:
A     2010-08-09-08:01:35.00000
B     2010-08-09-08:01:35.00000
A     2010-08-09-08:01:35.00000
B     2010-08-09-08:01:35.00000
A     2010-08-09-08:01:35.00000
B     2010-08-09-08:01:35.00000
A     2010-08-09-08:01:35.00000
B     2010-08-09-08:01:35.00000
A     2010-08-09-08:01:35.00000
B     2010-08-09-08:01:35.00000
A     2010-08-09-08:01:35.00000
B     2010-08-09-08:01:35.00000

My question is:  Who cares?  What possible business reason is there?
Perhaps there must be some additional columns to consider?

But if there truly is some need then you could use that function that uses
scratchpad to create a row_number and sort by the A/B column and that
row_number.

Rob Berendt
--
Group Dekko Services, LLC
Dept 01.073
Dock 108
6928N 400E
Kendallville, IN 46755
http://www.dekko.com





From:   Alan Shore <AlanShore@xxxxxxxx>
To:     Midrange Systems Technical Discussion <midrange-l@xxxxxxxxxxxx>
Date:   08/09/2010 02:32 PM
Subject:        Re: Using SQL to "mix" the records in a file
Sent by:        midrange-l-bounces@xxxxxxxxxxxx




As soon as I pressed Enter, I wasn't too sure that I had explained myself
So here is my second attempt
The file contains 1,000 records, by timestamp, but as it happens, the
first
500 are record types A and the second 500 are record types B (by
timestamp)

I need to change the timestamp so that the 2 types are mingled
A
B
A
B
A
B

by timestamp

Hopefully that makes it a little clearer

Again, thanks in advance



Alan Shore
Programmer/Analyst, Direct Response
E:AShore@xxxxxxxx
P:(631) 200-5019
C:(631) 880-8640
"If you're going through Hell, keep going" - Winston Churchill



             Alan Shore
             <AlanShore@xxxxxx
             om>                                                        To

             Sent by:                  midrange-l@xxxxxxxxxxxx
             midrange-l-bounce                                          cc

             s@xxxxxxxxxxxx
                                                                   Subject

                                       Using SQL to "mix" the records in a

             08/09/2010 01:53          file
             PM


             Please respond to
             Midrange Systems
                 Technical
                Discussion
             <midrange-l@midra
                 nge.com>







Morning all
sorry about the subject line, but I couldn't think of a better one
Here is my predicament

I have a test file with thousands of records, but basically 2 types
Record type A
Record type B

The key to this file is a timestamp field, however, the file is basically
one batch of record type A, followed by a batch of record type B (based on
timestamp)
How can I "mix/mingle" these types so that the sequence (by timestamp) is
A
B
A
B
A

it can be a group of A, a group of B, a group of A, a group of B
As long as there is a mixture
I've thought about this all morning to no avail, so if someone has any
ideas , it would be MUCH appreciated

Thanks in advance


Alan Shore
Programmer/Analyst, Direct Response
E:AShore@xxxxxxxx
P:(631) 200-5019
C:(631) 880-8640
"If you're going through Hell, keep going" - Winston Churchill
--
This is the Midrange Systems Technical Discussion (MIDRANGE-L) mailing
list
To post a message email: MIDRANGE-L@xxxxxxxxxxxx
To subscribe, unsubscribe, or change list options,
visit: http://lists.midrange.com/mailman/listinfo/midrange-l
or email: MIDRANGE-L-request@xxxxxxxxxxxx
Before posting, please take a moment to review the archives
at http://archive.midrange.com/midrange-l.

--
This is the Midrange Systems Technical Discussion (MIDRANGE-L) mailing
list
To post a message email: MIDRANGE-L@xxxxxxxxxxxx
To subscribe, unsubscribe, or change list options,
visit: http://lists.midrange.com/mailman/listinfo/midrange-l
or email: MIDRANGE-L-request@xxxxxxxxxxxx
Before posting, please take a moment to review the archives
at http://archive.midrange.com/midrange-l.


--
This is the Midrange Systems Technical Discussion (MIDRANGE-L) mailing list
To post a message email: MIDRANGE-L@xxxxxxxxxxxx
To subscribe, unsubscribe, or change list options,
visit: http://lists.midrange.com/mailman/listinfo/midrange-l
or email: MIDRANGE-L-request@xxxxxxxxxxxx
Before posting, please take a moment to review the archives
at http://archive.midrange.com/midrange-l.