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Oracle Sql Distinct Not Working


Join them; it only takes a minute: Sign up Distinct not working? I tried this query: select distinct(studentId),collegeID from; and select studentId,collegeID from STDNT_GROUP where studentId in(select distinct(studentId) from STDNT_GROUP)"; sql oracle share|improve this question edited Mar 5 '12 at 18:50 ScottJShea 5,478112856 In my table, we could use the PK field, and the correlated query syntax becomes: -- ms sql server select t.* from tbl_Employee_WorkRecords t where = ( Magento 1: purpose of Magento index tables vs MySQL indexes Does this series involving sine converge or diverge?

Are there 2-3m illegal migrants with criminal records in the USA? The output is actually sorted by name which is a side effect of the DISTINCT processing. sqlite should also give the same result. 8/20/2009 10:57 AM | Anirban #re: SELECT DISTINCT and ORDER BY What a clever usage of aggregate function in the order by clause ! Why don't you want to use one? –a_horse_with_no_name Jan 6 at 0:10 Your query should already fetch 1 row each of 5 and 2. –Vampiro Jan 6 at 0:16

Sql Distinct Not Working With Join

SUPERVISORE JUNIOR SUPERVISORE SENIOR contact 10 rows selected. Coworker throwing cigarettes out of a car, I criticized it and now HR is involved Optimizing number of IF-Else statements Impossible Mentoring Task Sum of Maclaurin series Do any of the this is sooooo much easier.thanks for posting 3/19/2009 7:51 AM | Carl #re: SELECT DISTINCT and ORDER BY Exactly what I needed! 3/31/2009 2:31 PM | DaveM #re: SELECT DISTINCT and We will look up the most recent visit per customer and eliminate all other rows of that same customer: SELECT name, firstname FROM guests g WHERE visit IN (SELECT MAX(visit) FROM

  • When I tried to add the Min() and Group By, it fails.I am tring to get the top 5 minumum numbers.
  • Without order by the results may or may not be sorted. –Shannon Severance Mar 6 '12 at 0:56 Any reference for the claim that DISTINCT does not sort while
  • Take this example from Oracle Applications: -- Problem SELECT p.party_id , p.party_name FROM hz_parties p , hz_cust_accounts c WHERE c.party_id=p.party_id AND upper(p.party_name) LIKE 'BUSINESS WOR%’ PARTY_ID PARTY_NAME ---------- ------------------ 4429 Business
  • and why does it not work for my query?
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  • Tags:  olap by distinct order row_number sybase over Login to access this feature Add a Comment More Actions v Notify Other People Notify Other People Comments (4) Add a Comment Edit
  • Where should I begin?

Copyright © 2015 Oracle and/or its affiliates. In this blog I did use the technique before for de-duping.In the end this is precisely what we are doing here. distinct will not necessarily sort. Sql Group By Not Working Sum of Maclaurin series How to kick users from Windows Server 2012 R2 Inserting space before capital letter in attribute using QGIS field calculator?

In all probability, you have rows in GOTCHA that have the same carretera_foto, pto_km_radar, and sentido_radar values but different values for one or both of the other two columns (limit_vel_ctera and One of my coworker told me that he was asked (with out using unique and distinct) in an interview , I told him this answer. The following modified query would work correctly, returning only unique rows: -- Correct Approach SELECT p.party_id , p.party_name FROM hz_parties p WHERE upper(p.party_name) LIKE 'BUSINESS WOR%' AND EXISTS ( SELECT null Related Links Using GROUP BY to avoid self-joins (6/12/2007) Criteria on Outer Joined Tables (5/14/2007) By The Way ...

I hav to use the word which is more powerful than "Thnx" helpless...i couldn't find.... 2/26/2009 11:40 PM | Harish KV #re: SELECT DISTINCT and ORDER BY Damn helpful, thanks! Select Distinct Not Working Access Being a Tom Kyte evangelist I said "Based on what evidence? Leave a Comment Name * E-mail * Website Previous post: How to Add Table Column at Specific Position Next post: How to Manage those Pesky NULLs when Sorting Data   ORA-01450: UNION ALL, because UNION used alone implicitly performs a DISTINCT, something that most newcomers in SQL just don't know...

Select Distinct Not Working With Join

But it is funny to listen those kind of question. Watch closely the condition sq.rn = 1 has to be part of the left join condition, and NOT of the where condition! Sql Distinct Not Working With Join if all "duplicates" have the same value, is there another column to discriminate them, so we can decide on which one to take? Select Distinct Not Working Sql Server Is it a String Literal or an Alias?

Browse other questions tagged sql oracle oracle11g or ask your own question. DISTINCT means the whole record will not be repeated. Using DISTINCT is simple: just add it after the SELECT keyword, and you don't get duplicates. If we wanted to order by the minimum, then by the second minimum, then by the third minimum we can use nested queries to select each of those values in different Distinct Not Working C#

And your last line is really impressive as it happens in real time scenario :). Not the answer you're looking for? Taking any given select and changing "distinct" to "unique" seems to give the same explain plan which would support them being synonymous, but the documentation is unclear. But is this a wise fix?

How do i do that? –Nausikaa Feb 15 '12 at 18:11 That's another question :) Seriously, you should ask a new question for that. Distinct On One Column But I'd be suspicious of them - since this is nothing I'd want a programmer doing anyway :) In fact, I'm suspicious of queries that need a distinct in general, I Yikes! 12/18/2007 4:39 AM | adolf garlic #re: SELECT DISTINCT and ORDER BY >>yeah because dell, apple, oracle and the like are not-for-profit charity organisations that help little old ladies over

The reason is simple: It's not self evident what the answer should be!

been linked to insufficient sleep"? Tables and Data We usually have 2 tables in the scenario: one master/parent table, one dependant table, linked through a 1:n relationship, with information such as history, traffic, accounting, etc information. It is possible that one of the joins in the query needs to be an EXISTS subquery, or the join condition is incomplete, or the data model is faulty. Distinct Vs Group By Updated Likes 0 Comments 0 Work Orders & WMATL ...

So a reasonable query may be: Who are the guests I haven't seen for the longest time? Suppose , in a table there are some 5 rows , and in another table 0 rows ( no records) , then wht shud be the output of cartisian product of Updated Likes 1 Comments 0 Links Tags Recent tweets The trouble of combining DISTINCT with ORDER BY | | Comments (4) | Visits (45833) Tweet Motivation Yesterday one of my coworkers Check This Out Moving like named files into self-named directories Isn't the BBC being extremely irresponsible in describing how to authenticate an account-related email?

The other problem with this method is that you have to specify how many levels down you want to sort by, you can't just sort by a concatenation of all numbers.The thx –skycrew Oct 22 '12 at 9:59 i choose this answer because the resources less expensive –skycrew Oct 22 '12 at 10:12 add a comment| up vote 1 down no hours, minutes and seconds –skycrew Oct 22 '12 at 9:55 add a comment| Your Answer draft saved draft discarded Sign up or log in Sign up using Google Sign Maybe the food isn't as good anymore, or the menu has gotten boring.

By making small changes in the query 8/19/2009 5:33 AM | Syni #re: Nathan's problem Hello Guys, I understand that this is a T-SQL related forum, but it should be interesting This difference causes the strange result. Equations, Back Color, Alternate Back Color. Analytical functions: DISTINCTROW <> DISTINCT MS Access : UNION vs.

current community chat Stack Overflow Meta Stack Overflow your communities Sign up or log in to customize your list. share|improve this answer answered Oct 22 '12 at 6:12 rics 3,39432136 the data itself only contain date. And if we want to do the opposite, and order by the Letter with the greatest associated value, then we write: select Letter from x group by Letter order by max(Value) 12/8/2008 3:40 AM | David Silverlight #re: SELECT DISTINCT and ORDER BY Your solution only helps if the sort field does not have duplicates.

Notes: a related table is usually referred to as child table. That was appropriate for the business problem.