Display only records which are not duplicated
I wish to display only records which have no duplicate.
CREATE TABLE #TempTbl1 ( Circuit VARCHAR(55), Bandwidth DECIMAL(7,1), Unit BIT, CurrentID INT, ); INSERT INTO #TempTbl1 VALUES ('28.L9XX.100277..COXC.', 5.0, 0, 3364), ('28/LEHZ/010421/121/CFOK', 100.0, 0, 3223), ('#2009-191:604', 10.0, 0, 3100), ('28.L9XX.100277..COXC.', 100.0, 0, 3364), ('#2009-191:604', 150.0, 0, 3100), ('00/GIGE/M3283961/395/303/395', 200.0, 1, 4500)
I have the following result
Circuit Bandwidth Unit CurrentID ------------------------------------------------------------ 28.L9XX.100277..COXC. 5.0 0 3364 28/LEHZ/010421/121/CFOK 100.0 0 3223 #2009-191:604 10.0 0 3100 28.L9XX.100277..COXC. 100.0 0 3364 #2009-191:604 150.0 0 3100 00/GIGE/M3283961/395/303/395 200.0 1 4500
I would like my result to look like the following. As you can see I only want to display Circuits which occur only once.
Circuit Bandwidth Unit CurrentID -------------------------------------------------------------- 28/LEHZ/010421/121/CFOK 100.0 0 3223 00/GIGE/M3283961/395/303/395 200.0 1 4500
If you want only the unique circuits then
group by circuit and set the condition in the
select circuit, max(bandwidth) bandwidth, max(cast(unit as integer)) unit, max(cast(currentid as integer)) currentid from #TempTbl1 group by circuit having count(*) = 1
The aggregation with
MAX() in the select list will return the column values as there is only 1 value for each circuit.
See the demo.
> circuit | bandwidth | unit | currentid > :--------------------------- | :-------- | ---: | --------: > 00/GIGE/M3283961/395/303/395 | 200.0 | 1 | 4500 > 28/LEHZ/010421/121/CFOK | 100.0 | 0 | 3223
SQL DISTINCT: Removing Duplicates In a Result Set Examples, The primary key ensures that the table has no duplicate rows. As you see we have duplicate salary data e.g., 17,000 because two or more employees As a result, the DISTINCT operator keeps only one NULL value and removes the other � In this case, i think the solution above is the better to display the elements. if you prefer, you can work with a list variable with a structure that you need to display in the screen, and at the preparation pass the records to list variable, removing the duplicateds, and use this variable like a source to list widget on the screen.
SELECT * FROM yourtable t1 WHERE (SELECT count(1) FROM yourtable t2 WHERE t2.circuit = t1.circuit AND t2.currentID = t1.currentID) = 1
Filter for unique values or remove duplicate values, Filter for unique values, remove duplicate values, and conditionally format unique Insert or delete rows, and columns Article � Hide or show rows or columns 74 records returned. Exercise: Find suppliers who supply more than 4 products. Here is the result of finding suppliers who sell more than 4 products to Northwind Trader. Make the following change in query 1 above. having count(*) > 4 10 records returned. Query 2: Find non-duplicated values. Find suppliers who only sell one product to Northwind
For a uniqueness per CurrentID & Circuit?
Then a COUNT OVER them should be 1.
;WITH CTE_CIRCUITS AS ( SELECT * , COUNT(*) OVER (PARTITION BY CurrentID, Circuit) AS Cnt FROM #TempTbl1 ) SELECT Circuit, Bandwidth, Unit, CurrentID FROM CTE_CIRCUITS WHERE Cnt = 1
How to Find Duplicate Values in a SQL Table, Now, we want to return the entire record for see that this query is not so complicated. DataFrame.duplicated(subset=None, keep='first') It returns a Boolean Series with True value for each duplicated row. Arguments: subset : Single or multiple column labels which should used for duplication check. If not provides all columns will be checked for finding duplicate rows. keep : Denotes the occurrence which should be marked as duplicate.
You can use the following code if we use
currentid as a unique field.
WITH CTE AS (SELECT circuit, FIRST_VALUE(bandwidth) OVER(PARTITION BY currentid ORDER BY currentid) bandwidth, FIRST_VALUE(unit) OVER(PARTITION BY currentid ORDER BY currentid) unit, currentid, COUNT(*) OVER(PARTITION BY currentid ORDER BY currentid) CNT FROM #TempTbl1) SELECT circuit, bandwidth, unit, currentid FROM CTE WHERE CNT = 1;
SELECT circuit, bandwidth, unit, currentid FROM #TempTbl1 WHERE currentid NOT IN ( SELECT currentid FROM #TempTbl1 GROUP BY currentid HAVING COUNT(currentid) > 1 );
How To Find Duplicate Values in MySQL, This tutorial shows you step by step how to find duplicate values in one or more NULL, last_name VARCHAR(50) NOT NULL, email VARCHAR(255) NOT NULL ); Rows are considered duplicate only when the combination of columns are� When you remove duplicate values, the only effect is on the values in the range of cells or table. Other values outside the range of cells or table will not change or move. When duplicates are removed, the first occurrence of the value in the list is kept, but other identical values are deleted.
Why are there duplicates in the query results and how to minimize , Query is a way to group records; it is not a reporting tool. the query to filter Export, Reports, Mail, etc.; each record will only display once when used as a filter. I got a requirement where I should have the report displays ONLY the duplicated rows Fields are: Patient_ID, Patient_Name, Service_Code, Date_Of_Service, Provider_Name, Guarantor_Code, Total_Charge_Amount * So the manager wants to look at ONLY the duplicated rows in order to find out patients whom claimed the service more than once*
Finding Duplicates with SQL, Also see How to remove duplicate rows from a table - Microsoft Knowledge base What is the the proper SQL query to not only find the dupes but acutally� The layout that we see in Excel is WYSIWYG. In Tableau the default behavior is to aggregate the underlying records (rows) based on the dimensions (columns) in the view. The data set as-is does not have sufficient dimensionality (granularity) to uniquely identify each unique record that you want to display.
How to Use Excel to Show Only Duplicate Values, Select the rows and columns that you want to search for duplicate values. You can select multiple non-contiguous values throughout the spreadsheet by� pandas.DataFrame.duplicated¶ DataFrame.duplicated (subset = None, keep = 'first') [source] ¶ Return boolean Series denoting duplicate rows. Considering certain columns is optional. Parameters subset column label or sequence of labels, optional. Only consider certain columns for identifying duplicates, by default use all of the columns.
- What happened to
- Please explain the logic you want to implement.
- Your expected results shows 2 circuits, your data shows 4 unique circuits. Can you please clarify.
- @DaleK #2009-191:604? And 28.L9XX.100277..COXC shows up twice with a different bandwidth the original table. I would like to query these results but only display 28/LEHZ/010421/121/CFOK and 00/GIGE/M3283961/395/303/395 because it only shows up once. Does that help? You guys are very quick in answering. Unfortunately, My coding example to display here still needs work. I apologize for my confusion.
- Most people read "not display duplicates" as when there is a duplicate to only return 1 row instead of multiple. In your case it seems when there is a duplicate you don't want any row for that circuit.