The first query we run is using case sensitive, so all four rows should show up. 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 Effect of bootstrapping in amplifier circuit Coworker throwing cigarettes out of a car, I criticized it and now HR is involved more hot questions question feed lang-sql about us tour help To make it clear: it will compare the returned columns for the SELECT it is applied to, and not to the full table/join. http://sevevb.com/not-working/distinct-is-not-working-sql.html
Introduction Often, when running a query with joins, the results show up "duplicates", and often, those duplicates can be "eliminated" in the results using DISTINCT, for example. For visualizing, here the data, queried using the SQL Server Management Studio 2005: Employees: Work Records:If you have trouble with dates/times, please refer to this article. 2. Once the results from child table are OK, we can then join those results to the parent table (see step 7) In our example, we could say: A: give me just asked 10 months ago viewed 168 times active 10 months ago Upcoming Events 2016 Community Moderator Election ends in 9 days Related 471How can I SELECT rows with MAX(Column value), DISTINCT
Is adding the ‘tbl’ prefix to table names really a problem? So depending on how your database is setup you may or may not see the differences. All rights reserved. Both techniques shown have the same weakness!
Should I report it? 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. sql oracle select distinct share|improve this question edited Jan 6 at 0:25 asked Jan 6 at 0:08 Law 4115 What is the table definition that you're selecting from? –Burleigh Distinct Not Working C# and this is my query: sql = "SELECT DISTINCT g.ExeName, d.FileRec, d.RefDes, d.Title as [Component Title], c.Title AS [Sheet Title], f.FileName, f.Title AS [Sim Schematic Title] FROM (((((((Projects AS a INNER
One of the problems you may be faced with is that you want to get a distinct list of values from a table to show the differences in your table, but Faq Reply With Quote April 19th, 2011,01:26 PM #5 r937 View Profile View Forum Posts Visit Homepage SQL Consultant Devshed Supreme Being (6500+ posts) It returns the set of distinct rows over the superset returned by the query, rather than distinct values in a single column. http://stackoverflow.com/questions/22893813/distinct-doesnt-work Not the answer you're looking for?
I used a solution that I happened to already have on my laptop on an exam. https://www.experts-exchange.com/articles/3203/DISTINCT-and-GROUP-BY-and-why-does-it-not-work-for-my-query.html 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 Take yourself to another level. Select Distinct Not Working Access asked 2 years ago viewed 1379 times active 2 years ago Upcoming Events 2016 Community Moderator Election ends in 9 days Visit Chat Related 1178How does database indexing work?6Oracle combine multiple
In short, Result C is a variation of Result B, if you look closely at it. 7. http://sevevb.com/not-working/distinct-is-not-working-in-sql-server.html Join them; it only takes a minute: Sign up SELECT DISTINCT is not working up vote 0 down vote favorite Let's say I have a table name TableA with the below SELECT DISTINCT CONCERT.CONCERT_ID, CONCERT.C_TYPE, COUNT(BOOKINGS.CUSTOMER_CUSTOMER_ID) AS NUMBER_OF_CUSTOMERS FROM CONCERT, CUSTOMER, EVENT, BOOKINGS WHERE CUSTOMER.CUSTOMER_ID = BOOKINGS.CUSTOMER_CUSTOMER_ID AND EVENT.EVENT_ID = BOOKINGS.EVENT_EVENT_ID AND CONCERT.CONCERT_ID = EVENT.CONCERT_ID GROUP BY CONCERT.CONCERT_ID, CONCERT.C_TYPE ORDER BY CONCERT.CONCERT_ID Faq Reply With Quote April 19th, 2011,11:17 AM #3 No Profile Picture FXG View Profile View Forum Posts Registered User Devshed Newbie (0 - 499 posts) Join Date Distinct Not Working Oracle
see also: Some SELECTs will never return 0 rows -- regardless of the criteria A handy but little-known SQL function: NULLIF() Is it a String Literal or an Alias? I get an error every time I try to run it. "RefDes column can't be fined." It doesn't matter where I want to put the () to group the Distinct I if you had other columns you wanted to show, you would have the same issue as for pk, and using max() or min() shall not give the correct results 4. navigate here Should I have doubts if the organizers of a workshop ask me to sign a behavior agreement upfront?
DISTINCT is not a function ... Select Distinct Doesn't Work Sql My cat sat on my laptop, now the right side of my keyboard types the wrong characters Encasing a star in a perfect insulator Can leaked nude pictures damage one's academic Can Newton's laws of motion be proved (mathematically or analytically) or they are just axioms?
Get free SQL tips: *Enter Code Wednesday, August 07, 2013 - 2:43:44 AM - Jagadesh Back To Top Thanks Greg, it helps me lot.. Using transistor as switch, why is load always on the collector Isn't the BBC being extremely irresponsible in describing how to authenticate an account-related email? if there are multiple records to be taken, what is the result we want to have? Distinct On One Column All rights reserved.
using CONVERT() to ignore the time portion. 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 ) How to handle swear words in quote / transcription? his comment is here View more Suggested Courses Azure SQL: Relational Database-as-a-Service $99 Administering Microsoft SQL Server 2012 Databases (Exam 70-462) $79 70-462 - Administering Microsoft SQL Server 2012 $545 Advertise Here Next Article:HRIS Implementation
Recorded Future allows analysts to observe structured data on the open, deep, and dark web. Result C Now that we have seen Result B, for request C this should be easy, as option B returns already the records we need.