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Distinct Not Working Sql

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Request: Presume we want to see the last work day, per employee. Equations, Back Color, Alternate Back Color. current community chat Stack Overflow Meta Stack Overflow your communities Sign up or log in to customize your list. That was appropriate for the business problem. http://sevevb.com/not-working/distinct-is-not-working-sql.html

How ever, when i do this, i get "duplicates". Does the Rothschild family own most central banks? Browse other questions tagged sql distinct or ask your own question. If this is the case, the behavior when there are multiple matches is to pick the first match. http://stackoverflow.com/questions/9572131/select-distinct-not-working-as-expected

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! First Name Please enter a first name Last Name Please enter a last name Email We will never share this with anyone. It will not return duplicates, it only returns the list of distinct values in the column.You need to use count and having:SELECT transactionnumber, COUNT(*) AS num FROM Orders WHERE Code='9987' GROUP I will not discuss the performance of this syntax here; you can check this out for yourself using the execution plans/explain plans and timing the queries.

  • Passing an Array or Table Parameter to a Stored Procedure SELECT * FROM TABLE -- except for these columns In SQL, it's a Case Expression, *not* a Case Statement Returning Random
  • the only way to avoid duplicates is to make the P2Sim's RecNo to be distict.@paqogomez –V_H24 May 12 '14 at 18:10 This is your problem, you cannot "group" distinct.
  • One without and one with OLAP: Going old school The classic approach requires us to do a join.
  • Code: SELECT UsersTable.UserID, UsersTable.FirstName, UsersTable.LastName , MIN(OrdersTable.OrderID) from UsersTable INNER JOIN OrdersTable on OrdersTable.UserID = UsersTable.UserID GROUP BY OrdersTable.OrderID, UsersTable.UserID, UsersTable.FirstName, UsersTable.LastName Faq Reply With Quote April 19th, 2011,10:10 PM #10
  • 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 =
  • Then your output will be "one row per distinct combination" of the 3 fields.
  • DISTINCT is not a function ...
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How to find x and y coordinates based on the given distance? LEARN MORE Join & Write a Comment Already a member? If you run: select distinct Field1, Field2, Field3 ... Distinct Not Working C# Not the answer you're looking for?

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 t.pk = ( asked 2 years ago viewed 371 times active 2 years ago Upcoming Events 2016 Community Moderator Election ends in 9 days Related 187SQL to find the number of distinct values in Understanding which string breaks when one pulls on a hanging block from below I don't want to do research (First year tenure-track faculty) Can spacecraft defend against antimatter weapons? http://stackoverflow.com/questions/23615375/using-distinct-does-not-work-in-the-sql-query Why Would the President-elect have a Transition Visit before December 19?

All-Star 27268 Points 6185 Posts Re: Distinct keyword not working in sql server Jul 06, 2012 06:07 AM|kedarrkulkarni|LINK select distinct(subcatid) dosent mean you are taking distinct of subCatId column... Sql Group By Not Working Not the answer you're looking for? I also tried doing a count (transactionnumber)<2 but could not figure out how to add a where for the item number.So an order for just this itemselect distinct(transactionnumber) from Orders (I Combine with master table Once you found the correct rule to determine which row you want to take from the child table, you can take that query, and join to the

Select Distinct Not Working With Join

and 2) When to use "max" or for example (50)??? https://www.experts-exchange.com/articles/3203/DISTINCT-and-GROUP-BY-and-why-does-it-not-work-for-my-query.html Furthermore, I just wanted to SELECT the lookup_value to be unique for my view and use in another query, that is why i think SELECT DISTINCT could work in this case Sql Distinct Not Working With Join How to find the file where a bash function is defined? Select Distinct Not Working Access We picked the most recent version of the (name, firstname) tuple for the distinct processing.

SELECT DISTINCT foo, bar, baz should be read more as SELECT DISTINCT(foo,bar,baz) and not: SELECT DISTINCT(foo), NON-DISTINCT(bar), NON-DISTINCT(baz) If you want a particular field to be unique within your query, then http://sevevb.com/not-working/distinct-is-not-working-in-sql-server.html and why does it not work for my query? Not always the case ... Added note: When you do a distinct on multiple fields, it's going to give you distinct on multiple fields not the first field after the distinct. Distinct Not Working Oracle

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facebook google twitter rss Free Web Developer Tools Advanced Search  Forum Databases MS SQL Development Select Distinct Not Working Thread: Select Distinct Not Working Page 1 of 2 12  Distinct On One Column Related 187SQL to find the number of distinct values in a column471How can I SELECT rows with MAX(Column value), DISTINCT by another column in SQL?9why does hibernate hql distinct cause an So, here a sample in Oracle: -- oracle select sq.*, e.Name from ( SELECT t.* , ROW_NUMBER() OVER ( PARTITION BY employee_pk ORDER BY work_start_dt DESC )

The ladies taking the orders know us, and if one of us doesn't join we get a jovial: "Where is your friend today?" As a business it pays to keep track

Encasing a star in a perfect insulator What power do I have as a driver if my interstate route is blocked by a protest? the rest of the columns are the same. several records against few users, because they have multiple orders in orders table, whereas I want to show only 1 record per user, i.e. Distinct Vs Group By Code: SELECT UsersTable.UserID, UsersTable.FirstName, UsersTable.LastName , MIN(OrdersTable.OrderID) from UsersTable INNER JOIN OrdersTable on OrdersTable.UserID = UsersTable.UserID GROUP BY OrdersTable.OrderID, UsersTable.UserID, UsersTable.FirstName, UsersTable.LastName Sorry, but it is still showing duplicate records, i.e.

All rights reserved. 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 AVG, MAX, MIN) share|improve this answer answered Jan 6 at 0:31 dsz 1,4351217 add a comment| up vote 3 down vote Here's my guess at your problem - when you say his comment is here If you want one row for each distinct LOOKUP_VALUE, you either need a WHERE clause that will work out which one of them to show, or an aggregation strategy with a

I tried to group the query but I can't. We will in the next steps show the SQL to achieve those results, in the different engines. 3. What power do I have as a driver if my interstate route is blocked by a protest? Did the GoF really thoroughly explore "Pattern Space"?

Is there any way for a planet orbiting a red dwarf in the habitable zone to not be tidally locked? Essentially we will number each persons visits from the newest to the oldest starting with "1" and then eliminate everything but the first entry per person. Did Trump call Belgium a village in Europe? How does Gandalf end up on the roof of Isengard?

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