Selecting Unique Records
Mar 21, 2014
I am trying to create a select query similar to the following but the problem I am having is that I want to only select one record where there may be several with the same dw_order_no. I have tried various ways using SQL developer but without success
SELECT VE_EZP_ORDER_TRANS.EZP_BILL_STATUS AS EZP_BILL_STATUS1,
VE_EZP_AGED_CUSTOMER_DEBT.SURNAME,
VE_EZP_AGED_CUSTOMER_DEBT.DEBT_AGE_CATEGORY,
VE_EZP_AGED_CUSTOMER_DEBT.DEBT_AGE,
VE_ORDERLINE.DW_ORDER_NO,
[code]...
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Sep 17, 2007
Hello Everyone and thanks for your help in advance. I have a SQL Server Table wtih approximately 100,000 records. I need to determine if there are duplicate records in this table. My probelm is that there is a unique ID column that was added for each row, so I'm not exactly sure how to filter the rows. Any help on this would be greatly appreciated. Thanks.
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Aug 10, 2015
I have a very large CSV file containing name-and-address information which I am reading in a Visual Basic project using the Microsoft.JetOLEDB.4.0 provider.
The key field on which the CSV file is to be filtered is the PostCode field. This is a UK-format PostCode "XXnn Nxx" where "XX" is one or more letters denoting a geographical area within the UK and "nn" is one or more characters (starting with at least one numeric digit) which when combined with the area code denotes a specific district within the geographical area. My aim is to identify all the unique UK postal districts held within my address CSV file.
Because I do not know how to use SQL to filter on the partial contents of a database field I am presently reduced to extracting unique full PostCodes using "SELECT DISTINCT PostCode,City,County FROM [ADDRESSES.csv]" into a DataTable object, then sequentially reading that DataTable using the operation of a dictionary object to identify unique PostCode areas, to finally construct the DataTable I need.
Is it possible in SQL to select records where the value of a varying number of characters before a space character in a given (PostCode) field is unique?
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Jul 31, 2004
I want to start with a table that has 4 records:
-Self
-Supervisor
-Peer
-Direct Rep
And I want to end with a table that has every unique combination of these records (the order being reversed would be considered 'unique' in this context)
-Self , Supervisor
-Supervisor , Self
-Self , Peer
-Peer , Self
-Self , Direct Rep
-Direct Rep , Self
-Peer , Direct Rep
-Direct Rep, Peer
How would I do this in an SQL Query? Thanks for your help!
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Jul 20, 2005
I have a stored procedure (below), that is supposeto get a Reg Number from a table, (Reg_Number), insuch a way that every time the stored procedure is called,it will get a different reg number, even if the storedprocedure is called simultaneously from two differentplaces,However it is not working that way.If two different users access a function in thereVB program at the same time, the two different userswill get the same reg number.I have looked at the stored procedure, it looks foolproof,yet it is not working that way.Thanks in Advance,Laurence NuttallProgrammer Analyst IIIUCLA - Division of Continuing Education'---------------------------------------------------------------------------Here it is:CREATE PROCEDURE sp_GetNextRegNum@newRegNum char(6) = NULL OUTPUTASLABEL_GET_ANOTHER_REG:Select @newRegNum =(select min(Reg) from reg_number)IF Exists (select Reg from reg_number where reg = @newRegNum )BeginDelete from reg_number where reg = @newRegNumIF @@Error <> 0BeginGoto LABEL_GET_ANOTHER_REGEnd--EndifEndELSEGoTo LABEL_GET_ANOTHER_REG--EndifGO
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Mar 20, 2008
I got the following query:SELECT TOP (8) ext.extID, ext.Quote, ext.sourceTitle, ext.extRating, gf_game.gameID, gf_game.catID, gf_game.URL, gf_game.TitleFROM gf_game_ext AS ext INNER JOIN gf_game ON gf_game.gameID = ext.gameIDWHERE (ext.Approved = 1)ORDER BY ext.extID DESC which is e.g. producing this output: 6000 -some text- Title 90 1960 2 tom-cl tom cl5999 -some text- title 90 1960 2 tom-clcl asdf5998 -some text- title 90 1959 2 tom-cl-cl asdfWhat I'd like to do now is to filter out the duplicate GameIDs (= 1960) so that just one unique row with the gameid 1960 is remaining. If I put in a SELECT DINSTINCT TOP(8) it just counts for the table ext, but I need it to count for gf_game.gameID - is that possible?Thanks a lot!
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Sep 18, 2007
As a beginner i am having trouble with this.
i have two different tables , both have a name column, nvarchar datatype.
I would like to select from table B all the rows which contain a name which is not in table A.
Then insert these rows, into table A
tried a few different ways & just keep getting strange errors that refer to courier font ??
SQL Team Your my Hero !
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Mar 18, 2007
Hi there, im still learning SQL so thanks in advance.I have a table with columns of customer's information, [customerID], [customerFirst], [customerLast], , [program] ... other columns ... There will be entries where there can be duplicate customerFirst and customerLast names. I would like to just return a single entry of the duplicate names and all associated row information. IE: [customerID], [customerFirst], [customerLast], [ email], [program] 01 Bill Smith bill.smith@hotmail.com ymca 02 Bill Smith bill.smith@hotmail.com Sports 03 jon doe jon.doe@hotmail.com AAA 04 jon doe jon.doe@hotmail.com Ebay 05 Paul Sprite paul.sprite@hotmail.com Rec Desired Returned result: 01 Bill Smith bill.smith@hotmail.com ymca 03 jon doe jon.doe@hotmail.com AAA
05 Paul Sprite paul.sprite@hotmail.com Rec So in my code i have this:dAdapter = new SqlDataAdapter("SELECT * FROM [Poc_" + suffix + "] WHERE (SELECT DISTINCT [CustomerLastName], [CustomerFirstName], [CustomerEmail] FROM [Poc_" + suffix + "])", cnStr); dAdapter.Fill(pocDS, "Data Set"); However this is throwing up an error when i build the app: An expression of non-boolean type specified in a context where a condition is expected, near ')'.
Description: An
unhandled exception occurred during the execution of the current web
request. Please review the stack trace for more information about the
error and where it originated in the code.
Exception Details: System.Data.SqlClient.SqlException:
An expression of non-boolean type specified in a context where a
condition is expected, near ')'.
Source Error:
Line 52: //dAdapter = new SqlDataAdapter("SELECT DISTINCT * FROM [Poc_" + suffix + "] ORDER BY [CustomerLastName]", cnStr); Line 53: dAdapter = new SqlDataAdapter("SELECT * FROM [Poc_" + suffix + "] WHERE (SELECT DISTINCT [CustomerLastName], [CustomerFirstName], [CustomerEmail] FROM [Poc_" + suffix + "])", cnStr); Line 54: dAdapter.Fill(pocDS, "Data Set");Line 55: Line 56: //Dataset for name comparison 1: Can someone explain to me why this error is happening?2: Can soemone confirm that my intentions are correct with my code?3: If I'm completely off, can someone steer me in the right direction?Thanks alot!-Terry
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Feb 10, 2014
I have a table (Billing Table) having multiple records for people having one record per person per each month.
How to get a list of the guys having record just for one month (say feb) and doesn't have any other months.
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Aug 11, 2015
Table1 contains fields Groupid, UserName,Category, Dimension
Table2 contains fields Group, Name,Category, Dimension (Group and Name are not in Table1)
So basically I need to read the records in Table1 using Groupid and each time there is a Groupid then select records from Table2 where Table2.Category in (Select Catergory from Table1)
and Table2.Dimension in (Select Dimension from Table1)
In Table1 There might be 10 Groupid records all of which are different.
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Jan 25, 2002
I have a database which has a field called fldTimes. basically this field records the number of hits a file gets. How can I choose the most 5 popular files with the greatest hits. Thanks
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Sep 11, 2007
Is it possible to use a SELECT to retrieve a Next 50 set of records?
Initial Query
Select top 50 email from table
What would the Query look like to retrieve the Next 50 records?
Thanks in advance.
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Aug 31, 2006
This might be a simple question. I have a LIKE statement that is working fine, however I am not sure if something else is possible.
I can pull all records on a query for a person's name with a parameter value of "MARTIN". It will also pull records for "LYNN MARTIN". However, what if I would like to have that search also pull "LYNN M MARTIN"? Currently "LYNN MARTIN" is not finding "LYNN M MARTIN".
When the end user wants to search on LYNN MARTIN and that is what they input, I want SQL to find all records that match LYNN MARTIN and also find records that HAVE LYNN % MARTIN.
I hope this make sense? I guess I need to build my select statement using a WHERE LIKE statement, but I am not sure of the syntax.
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Sep 1, 2007
Hi,
I'm just wondering if someone can help me with some SQL syntax stuff.I want to take this sql statement:
"SELECT TOP 50 tblProfile.chName, tblProfile.intCount FROM tblProfile, tblLinks WHERE (tblLinks.MemberID = tblProfile.MemberID) ORDER BY tblLinks.dtDateAdded DESC;"
and select only unique "chName's" records
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Jan 29, 2008
I'm looking for a bit of SQL code that will select some entries randomly from an SQL table.
For instance I'd like to feed a parameter in that contains the number
20, and the returned record contains 20 randomly and distinct selected
records.
Anyone know how this can be done? (never came across randomly select records) Appreciate any help
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May 11, 2008
hi again,
i just want to ask if how can i randomly select 5 distinct records from a table w/ a hundreds of records everytime i exec a stored procedure??
thanks
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Jul 26, 2004
I have a reviews table where all reviews are submitted. On the main page I want to display the 10 most reviewed products. I have a Product_ID column in this table which identifys the product. How can i write a query which will select the product_ID of records which have the most frequent product_ID's?
I came up with something like this:
"Select Top 10 Product_ID, COUNT(*) AS Occurances FROM reviews GROUP BY Product_ID ORDER BY occurances DESC"
But it does not work.?? It says "Declaration expected" as error
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Dec 13, 2004
Hi, my sql is not too hot so i hope someone can help me. I need to select all the records from one table that do not exist in 2 other tables. I know it sounds simple enough but for some reason i can not get it working. It may have something to do with the fact that the field i am searching on are datetime fields. Here is a shortened version of my code.
SELECT DateOfStats
FROM table1
WHERE (DateOfStats NOT IN
(SELECT dateofstats
FROM table2)) and (DateOfStats NOT IN
(SELECT dateofstats
FROM table3))
Thanks for the help in advance.
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Jan 12, 2005
I have a mssql database like this:
Table1:
ID GuestName Agent CheckInDate OtherColumn
1 Guest 1 Peter 1/11/2005 whatever
2 Guest 2 Peter 1/11/2005 whatever
3 Guest 3 John 1/11/2005 whatever
4 Guest 4 John 1/13/2005 whatever
5 Guest 5 Peter 1/11/2005 whatever
I want to display it group by same Agent and CheckInDate. Like this:
Agent CheckInDate Records
Peter 1/11/2005 3
John 1/11/2005 1
John 1/13/2005 1
How can I do this? Please help, thank you.
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May 25, 2005
i need to select records from table "A" if only the "PK" of "A" exists in table "B". I need to return a resultset not just a single record. The problem is table "B" is not a table in database instead a user supplied table which can be a datatable in memory.
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Nov 17, 2005
I was given this query but could not build it successfully.
can anybody help me out.
Consider the following scenario:
we have a table with single field of type Varchar(100).
we have few hundred records in it.
we want to retrieve last 'n' records from table.
i know this is bad idea but we need to have some solution to work it out.
i'm breaking my head but to no use.
Please help
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Mar 1, 2004
How would I create a statement that would select 10 random records from the SQL DB?
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Apr 16, 2008
Hi,
Here is a basic example of the issue I am having:
Table 1 columns - name, address, zipcode, favorite food
For table 2 I want to find how many zipcodes exists and also take 20% of the count
Table 2 columns - based off Table 1 contains zipcode, count(zipcode) as ct, count(zipcode) * .20 as perc_ct
For example:
zipcode ct perc_ct
83746 10 2
93847 20 4
I want to run a query that will pull any 2 records for 83746 and any 4 records for 93847 from Table 1.
Is this possible?
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Sep 27, 2013
What I need is the start and end time of each task, but the issue is there is no unique task number to bind them together.. So for instance the task starts with 'Open-Submitted' and ends with 'Task Approved'. The issue is there can be multiple occurrences in the same file number. I need to be able to split these into multiple tasks with the associated start and stop times.
File IDDatetimesTask Event StatusTask Event NameTask IDEvent ID
File 16/3/13 16:33Open-SubmittedTask is retrievedTSK-12345612345
File 16/3/13 16:44Open-ApprovedTask ApprovedTSK-12345623456
File 16/20/13 18:11Open-SubmittedTask is retrievedTSK-12345634567
File 16/21/13 14:42Open-ApprovedTask ApprovedTSK-12345645678
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Jan 30, 2006
I am having trouble selecting only one record in a list with a sequence, example:
name addseq address
================================
bob, doe 1 123 str.
bob, doe 2 456 ave.
jane, doe 1 789 blvd.
What I want to do is select the records that are current which would be:
name addseq address
================================
bob, doe 2 456 ave.
jane, doe 1 789 blvd.
Please help with some ideas.
Thanks
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Jun 28, 2007
Is there a way to see a list of duplicate records??
EG There is a field named "Invoice" in a table named "Orders" and I want to see only records where the same invoice shows more than once.
Sample output:
Invoice--Partno
123------a66
123------9pp
123------k33
5988-----j22
5988-----bx1
66-------pq1
66-------333
etc......
Thanks
Mike
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Mar 15, 2006
Good Morning,I have a view that contains rate information, contractIDs, and effectivedates.I need to select the rate info based on contractID and date.I can provide a date and contractID, and I need to select the rate info forthat contract where the effective date is <= dateprovided.I need the 1 record that is closest to that date.I am thinking something with max() perhaps. Any ideas? The <= effectivedate will return several rows, I just need the one closest to the date Iprovide.Thanks for any advice,CK
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Jan 11, 2013
I have a table contains information related to sales:
SO number Order Date Customer SellingPerson
1001 2012/07/02 ABC Andy
1002 2012/07/02 XYZ Alan
1003 2012/07/02 EFG Almelia
1004 2012/07/02 ABC John
1005 2012/07/02 XYZ Oliver
1006 2012/07/02 HIJ Dorthy
1007 2012/07/02 KLM Andy
1008 2012/07/02 NOP Rowan
1009 2012/07/02 QRS David
1010 2012/07/02 ABC Joey
Now, i want to write a query using CTE that gives me first five distinct customer in result set:
SO number Order Date Customer SellingPerson
1001 2012/07/02 ABC Andy
1002 2012/07/02 XYZ Alan
1003 2012/07/02 EFG Almelia
1006 2012/07/02 HIJ Dorthy
1007 2012/07/02 KLM Andy
I wrote this query :
With t(so_number,order date,customer, SellingPerson)
as
(select top 5 so_number,order date,customer, SellingPerson from t)
select distinct billingcontactperson from t order by so_id
And getting this error:
Msg 252, Level 16, State 1, Line 1
Recursive common table expression 't' does not contain a top-level UNION ALL operator.
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Apr 2, 2008
hi ,
how can i have a stored procedure that selects records using cursor
and returns the cursor ?
thanx in advance
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May 6, 2004
Is there a way to get a Stored Procedure to return only unique records from a table? I am using a Stored PRocedure to query a table and it returns all the records in the table and there are many duplicates in the information. I am using SQL Server 2K.
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May 12, 2008
I have the following sql:
SELECT COUNT(patient.patientID) AS total_patients
FROM patient
LEFT JOIN patient_record ON patient_record.patientID = patient.patientID
WHERE sub_categoryID = 4 OR patient_record.allocated = 4
from the database this gives me a COUNT of 22, it should only be 10. I am doing a join and it gives the total records in the two tables where I only want the total in the left table(patient).
How can I GROUP BY patient.patientID in a COUNT query
Thanx, Robson
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Oct 25, 2007
Hi! I have a table Tbl1 has to columns:
A B
_________
Ibm Me
Sony Me
Me Bob
Me Frank
I'd like to select all rows where B=ME and A=Me Thanks for the help
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Sep 22, 2000
Hello,
I need to select records by random order everytime user go to that page. QuestionID is the uniq field in this table.
SELECT * FROM QuestionMaster.
I tried to use the following statement to get the random records but I can't get the value in the variable out of this statement that I can use in my above select statement. Please HELP.
SELECT Convert(int,RAND()*97)
Thanks in a million.
Sarika
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