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Distinct Keyword Sql Not Working


Register now! Privacy Policy Site Map Support Terms of Use Jeff's SQL Server Blog Random Thoughts & Cartesian Products with Microsoft SQL Server posts - 155, comments - 2679, trackbacks - 64 My Not always the case ... 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. this contact form

the maxlevel varies –codingbiz Dec 8 '12 at 22:01 @marc_s oh i see. Let me show the results, with this MS SQL server query, letting the query ignore the time portion: --- MS SQL Server select t.* from tbl_Employee_WorkRecords t where Know what you are doing, that it works, and why it works. Happy coding!

Sql Distinct Not Working With Join

Watch closely the condition sq.rn = 1 has to be part of the left join condition, and NOT of the where condition! can you explain the logic behind ? –MonsterMMORPG Dec 9 '12 at 16:19 You probably know , distinct removes the rows which are exactly the same , but as DISTINCT should be thought of as a clause, rather than a function to which you pass a column name as an argument. Result A So, let's take this query, which is using the correlated subquery technique, which works also for all databases: select t.* from tbl_Employee_WorkRecords t where t.work_start_dt =

  • If you used group by clause, you dont need a distinct clauseReply Christof Coetzee November 18, 2011 4:41 pmHawing worked extensively with MySQL and only about 2 years on Sql Server
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  • Hence, you have to clarify: do we just want the last record (date+time), or any record for the last date (ignoring time)?
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  • The table has the following columns ( ID, PayerID, Category, Status, CreateDate )In my Sample file I need to have a 100 records with all the columns but each record should
  • Here the example for N = 1: select sq.*, e.Name from tbl_Employee e cross apply ( SELECT TOP 1 * FROM tbl_Employee_WorkRecords t WHERE
  • Unless you expect something else of what is a duplicate (and what not) than SQL does actually do.

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: and why does it not work for my query? more stack exchange communities company blog Stack Exchange Inbox Reputation and Badges sign up log in tour help Tour Start here for a quick overview of the site Help Center Detailed Sql Group By Not Working oratabler August 26, 2011 at 10:48 pm When we actually want to list unique rows, and the data in question may be repeated.

Should I have doubts if the organizers of a workshop ask me to sign a behavior agreement upfront? Select Distinct Not Working With Join which is going to take distinc of all fields hope this helps... How do I handle this? http://stackoverflow.com/questions/13782345/why-distinct-is-not-working-at-this-sql-query-complex-query How does Gandalf end up on the roof of Isengard?

CONTINUE READING Join & Write a Comment Already a member? Select Distinct Only One Column UTL_HTTP to Call a Web Service from PL/SQL UTL_FILE: Simple Write To File Example and Debugging Common Errors   MERGE: Insert New Rows, Update Existing Rows in One Shot The Difference UNION ALL, because UNION used alone implicitly performs a DISTINCT, something that most newcomers in SQL just don't know... In T- SQL only.Reply madhivanan August 5, 2011 3:35 pmCan you post the code you have used?

Select Distinct Not Working With Join

Is the untested/empty statement true? more stack exchange communities company blog Stack Exchange Inbox Reputation and Badges sign up log in tour help Tour Start here for a quick overview of the site Help Center Detailed Sql Distinct Not Working With Join Mark as answer,if it helped U! Distinct Not Working Oracle PDF Downloads SQL Coding Standards SQL FAQ DownloadDownload SQL SERVER 2016 (FREE)Exclusive Newsletter SQL Interview Q & ASearch © 2016 All rights reserved.

The DISTINCT keyword can be used to return only distinct (different) values. weblink that is if person one has entered his data 5 times with same details, i have to check that and have to delete 4 record of that person and keep one Please help. *This is MS SQL SERVER ENTERPRISE 2008. *I get duplicated students... I don't use MSSQL but I suppose text is some kind of a binary field that MSSQL doesn't know how to handle for comparison of values very good. –Spikolynn May 25 Distinct Not Working C#

Well, the DISTINCT has nothing to do with the EmployeeID column; it is not a function that accepts arguments!  It is just a tag that you can put after the word Can Newton's laws of motion be proved (mathematically or analytically) or they are just axioms? Work to make "programming" more of a professional activity and less of a low-level "hacking" activity (programming is also a craft, but not just a craft). navigate here Why do most microwaves open from the right to the left?

for example in rows 1 and 3, i get the same: Student:"Amy", Major: "CS". Select Distinct Not Working Access it's been fixed! 0 LVL 12 Overall: Level 12 Databases 1 Message Expert Comment by:jkaios2014-09-10 Comment Utility Permalink(# c125421) Another 'YES' to a great article and unselfish contribution to the use this query:;with cte as( SELECT Row_NUMBER() OVER(PARTITION BY Person ORDER BY Person) AS RowID, * from table ) DELETE from cte where RowID > 1For more information:Thanks, TejasReply Edolmen Sviluppo

Rick -- DISTINCT in that case is still not a function; it is a tag or a flag on the aggregate function indicating to only count or sum distinct values. 10/12/2007

Top 10 Tutorials HTML Tutorial CSS Tutorial JavaScript Tutorial W3.CSS Tutorial Bootstrap Tutorial SQL Tutorial PHP Tutorial jQuery Tutorial Angular Tutorial XML Tutorial Top 10 References HTML Reference CSS Reference JavaScript The user problem is usually that they "expect" SQL to apply the DISTINCT only for one (or more) key fields, for example the first column returned in the select. The good method to solve the problem is to step back, and look at both the data and the requested output, which, once clarified, can be translated into SQL Query "easily". Sql Distinct Column What is the exact requirement?

My name is Jeff Smith, I am software developer in Boston, MA and I was recently named a 2009 SQL Server MVP. When asked for additional information about question, he showed me following query.SELECT Roles, FirstName, LastName
FROM UserNames He wanted to apply DISTINCT DISTINCT is not a function ... http://sevevb.com/not-working/distinct-is-not-working-sql.html This might be fine...