Solved

Selecting multiple rows which meet condition  oracle 9 sql

Posted on 2008-11-03
3
445 Views
Last Modified: 2013-12-19
Please see the attached which displays a) the current output and b) the desired output.

The data is looking at a specific question and answers given to the question in an electronic form for three different clients. This particular question is looking at the ethnicity recorded for a client. Each answer is recorded in 4 pieces of data:

CAT_DESC
START_DATE
END_DATE
NOTES

Each answer may have multiple instances of the above data (see client_id 202579), but the start and end dates of the categories cannot overlap.

Id like the output to only list open categories and the associated start date and notes, i.e. where there is no end date. Any help with this is appreciated.
output-example.xls
0
Comment
Question by:tonMachine100
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 2
3 Comments
 
LVL 29

Expert Comment

by:MikeOM_DBA
ID: 22867785

Try something like this:

Select * From Mytable A
 Where Exists (
 Select Null From Mytable B
  Where B.Qst_Type              = A.Qst_Type
    And B.Qst_Code              = A.Qst_Code
    And B.Qst_Id                = A.Qst_Id
    And B.Ans_Qst_Code          = A.Ans_Qst_Code
    And B.Client_Id             = A.Client_Id
    And B.Ans_Id                = A.Ans_Id
    And B.Avd_Seq               = A.Avd_Seq 
    And B.Anv_Name              = 'End_Date'
    And B.Answer Is Null        = A.Answer Is Null
/

Open in new window

0
 
LVL 29

Accepted Solution

by:
MikeOM_DBA earned 400 total points
ID: 22868006
Ooops, typo:

Select * From Mytable A
 Where Exists (
 Select Null From Mytable B
  Where B.Qst_Type              = A.Qst_Type
    And B.Qst_Code              = A.Qst_Code
    And B.Qst_Id                = A.Qst_Id
    And B.Ans_Qst_Code          = A.Ans_Qst_Code
    And B.Client_Id             = A.Client_Id
    And B.Ans_Id                = A.Ans_Id
    And B.Avd_Seq               = A.Avd_Seq 
    And B.Anv_Name              = 'END_DATE'
    And B.Answer Is Null
/

Open in new window

0
 

Author Closing Comment

by:tonMachine100
ID: 31512642
thats spot on. thanks for your help!
0

Featured Post

Independent Software Vendors: We Want Your Opinion

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

Question has a verified solution.

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

'Between' is such a common word we rarely think about it but in SQL it has a very specific definition we should be aware of. While most database vendors will have their own unique phrases to describe it (see references at end) the concept in common …
Composite queries are used to retrieve the results from joining multiple queries after applying any filters. UNION, INTERSECT, MINUS, and UNION ALL are some of the operators used to get certain desired results.​
This video shows setup options and the basic steps and syntax for duplicating (cloning) a database from one instance to another. Examples are given for duplicating to the same machine and to different machines
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

695 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