Solved

Order by Decode( )

Posted on 2004-10-04
2
1,010 Views
Last Modified: 2010-05-18
I have a query created for a report that allows the user to select what information they wish to sort the end report by.  I uderstand that decode automatically type-casts the decode statement based on the first item decoded.  That is the problem: one of the items is a date field the rest are varchar2 fields if the date field is the first in the list then I cannot order by the other fields I get "literal does not match" or "expecting a number format..." if a varchar2 field is first in the list and the date field is selected to order by it is treated as a varchar and is not sorted properly.  Again I understand that is the way decode is supposed to work but there has to be a way around this.  I have tried to type cast from within the decode statement it does not work...at least not the way I tried.

select platform, engineer, end_date, part, complete_date, rcvd_date
from table
where....
order by (:sort, 'ENGINEER', engineer, 'EDD', end_date, 'PART', part)

the above will not correctly sort by end_date

select platform, engineer, end_date, part, complete_date, rcvd_date
from table
where....
order by (:sort,  'EDD', end_date, 'ENGINEER', engineer, 'PART', part)

the above will not correctly sort by engineer or part

any suggestions


0
Comment
Question by:Barovian
2 Comments
 
LVL 20

Expert Comment

by:dsacker
ID: 12219058
Try:

order by decode(:sort,'ENGINEER',engineer,'EDD',to_char(end_date,'yyyymmddhh24miss'),'PART',part)

If you don't need the hours, take off the hh24miss.
0
 
LVL 6

Accepted Solution

by:
izblank earned 500 total points
ID: 12219151
Try this:

order by decode(:sort,  'EDD', end_date, NULL),
   decode(:sort, 'ENGINEER', engineer, NULL),
   decode(:sort, 'PART', part,NULL)
0

Featured Post

PRTG Network Monitor: Intuitive Network Monitoring

Network Monitoring is essential to ensure that computer systems and network devices are running. Use PRTG to monitor LANs, servers, websites, applications and devices, bandwidth, virtual environments, remote systems, IoT, and many more. PRTG is easy to set up & use.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Title # Comments Views Activity
SQL Retrieve Values 4 69
execute immediate plsql block 5 46
Export table into csv file in oracle 10 87
Include a logo in email body using Oracle utl_mail 11 30
Why doesn't the Oracle optimizer use my index? Querying too much data Most Oracle developers know that an index is useful when you can use it to restrict your result set to a small number of the total rows in a table. So, the obvious side…
Configuring and using Oracle Database Gateway for ODBC Introduction First, a brief summary of what a Database Gateway is.  A Gateway is a set of driver agents and configurations that allow an Oracle database to communicate with other platforms…
This video explains at a high level about the four available data types in Oracle and how dates can be manipulated by the user to get data into and out of the database.
This videos aims to give the viewer a basic demonstration of how a user can query current session information by using the SYS_CONTEXT function

777 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question