Selecting From Multiple Tables Avoiding Duplicates
Sep 6, 2006
Hi
I currently have two tables called Book and JournalPaper, both of which have a column called Publisher. Currently the data in the Publisher column is the Publisher name that is entered straight into either table and has been duplicated in many cases. To tidy this up I have created a new table called Publisher where each entry will have a unique ID.
I now want to remove the Publisher columns from Book and JournalPaper, replace it with an ID foreign key column and move the Publisher name data into the Publisher table. Is there a way I can do this without duplicating the data as some publishers appear several times on both tables?
Any help with this will be greatly appreciated as my limited SQL is not up to this particular challenge!!!
Thanks!
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Nov 4, 2004
i want to select all the user tables within the database and then all the records with in each table.
plz tell me one query to do this.
ex: suppose x and y are user tables and x contain 10 records and y contains 20 records . i want a query which displays all 30 records together.
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May 17, 2013
I'm joining several tables and when I add the last one I get duplicate results. How can I get just one for each?
select a.field, b.field, c.field
from atblname as a inner join btblname as b on a.id = b.parent_id
left outer join ctblname as c on a.id = c.parent_id
There are more than one result when joining tbl a and c, but I'm getting a reult for each of them for all results from joining a and b.
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Apr 2, 2007
Hi all.
I'm trying to select from multiple table in one select statement but i'm having problems. Here is the code i'm trying:
if exists (select * from dbo.sysobjects where id = object_id(N'[dbo].[snow_ors_additionalInfoRead]') and OBJECTPROPERTY(id, N'IsProcedure') = 1)
drop procedure [dbo].[snow_ors_additionalInfoRead]
GO
CREATE PROCEDURE dbo.snow_ors_additionalInfoRead
@Reference int
AS
SELECT
Account.CanTravel,
Account.SEEmployee,
Account.WorkHours,
Account.DrivingLicence,
Account.CriminalConvictions,
Account.CriminalConvictionsDetails1,
Account.CriminalConvictionsDate1,
Account.CriminalConvictionsDetails2,
Account.CriminalConvictionsDate2,
Account.CriminalConvictionsDetails3,
Account.CriminalConvictionsDate3,
Application.VacancyMonitoring,
Application.VacancyMonitoringDetails
FROM Account, Application
WHERE Account.Reference = @Reference AND
Application.reference = @Reference
GO
Any help at all would be great.
thanks people.
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Aug 13, 2006
Hi there,I'm new to sql and thus I'm having problems with a specific query which Ihope you guys can help me with.Basicly I have a few tables which I'm trying to do a query on:Table groups contains information about specific groups e.g. "Windows" or"Unix".Table users contains information about specific users e.g. "a", "b" or "c".Table users_groups contain information about group relationship (a user canbe in multiple groups) e.g. (a, Windows), (b, Unix), (a, Unix).In this case user c is ungrouped.Now I'd like to find the users which does belong to group Windows and thosewho do not:select distinct username from users_groups where groupname = "Windows" orderby username asc;This works pretty well for finding users in the specific group. In this casethe result is a.However I'd like to get the opposite result (b and c) but I'm stuck.The problem is that I'd like a list of all users excluding those which arein "Windows"Here is a partial query:select distinct users.username from users left join users_groups onusers.username = users_groups.username where users_groups.username is nullorder by users.username asc;This only gives me those users who are not grouped at all. This mean thatuser b is not in those results.Please advise.Thanks in advance.-- Henrik
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Apr 16, 2014
What I am trying to do: Obtain attendance percentages for schools for the last five days. The outcome would look like this:
DISTRICTGROUPING, SCHOOLNAME, 5 DAYS AGO PCTG, 4 DAYS AGO PCTG, 3 DAYS AGO PCTG, 2 DAYS AGO PCTG, 1 DAY AGO PCTG
I am using nested subqueries for each day as follows: (total enrollment-total absent/total enrollment)
,(
((SELECTCOUNT(*)--GET TOTAL ENROLLMENT COUNT FOR SPECIFIED DATE
[Code]....
The query works with the following exceptions:
My issues are:
1. Avoid the "division by zero" error. This can occur if a school is closed for a day or if a smaller school has no absences for a day.
2. Avoid weekend dates. I need the query to display only weekdays
3. Currently I am using "PERCENTAGE 5: as a column header whereas I need the actual date as the header.
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Feb 19, 2004
Hello,
Is it possible to get a list of rows from Multiple tables which have the same Column Name. I have 3 tables which comtain similar info
and I want to get a list of Names
the structure is
ID;Name;Address;Phone No.
I was thinking something along the lines of SELECT Name FROM TABLE1,TABLE2, TABLE3
But this does not work.
Is there a nice way of doing this with SQL or should I do code outside the SQL DB
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Jun 4, 2014
I have 3 tables:
News:
bigint NewId
nvarchar NewTitle
datetime NewDate
nvarchar NewBrief
--------------------------
Category:
int CatId
nvarchar CatName
--------------------------
NewsRelCategory:
bigint Id
int CategoryIdFk
bigint NewsIdFk
--------------------------
I want to select NewId, NewDate and Distinct NewTitle
I tried this but NewTitle doesn't distinct:
SELECT
FROM dbo.Category INNER JOIN
NewsRelCategory ON dbo.Category.CatId = NewsRelCategory.NrcCategoryIdFk INNER JOIN
dbo.News ON NewsRelCategory.NrcNewsIdFk = dbo.News.NewId
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Sep 19, 2000
I want to have a linking table say for example we call this a claim. Based on the claim number you need to relate to one of say 6 different types of claims. The types of claims related to their own individual parent table. (individual because each type of claim tracks completely different information) does anyone have an idea on how to set this up?
Sample Structure
table = Claim
Field 1 = ClaimTypeA_ID
Field 2 = ClaimTypeB_ID
Field 3 = ClaimTypeC_ID
Field 4 = ClaimTypeD_ID
Field 5 = ClaimTypeE_ID
Field 6 = ClaimTypeF_ID
The six field relate to the 6 different tables ID.
If I do this how do I store the data? put 0's in each of the claim types that are not used???
Any suggestions would be appreciated.
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Jul 1, 2015
i have this query in a proc
declare @bu_id INT,
@CurCaptureDate DATETIME,
@user_id INT,
@col_name VARCHAR(100),
@sort_order VARCHAR(4),
@CityPair_ID INT=NULL,
[code]....
where @reasons and @departure_code can be multiple.
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Mar 23, 2008
Im just curious how i would take multiple columns from multiple tables.... would it be something like this ???
table: Products COLUMNS ProductName, ProductID
table: Categorys COLUMNS CategoryName, CategoryID,ProductID
SELECT Products.ProductName, Categorys.CategoryName,Products.ProductID,Categorys.CategoryID,Categorys.ProductID
FROM Categorys, Tables
WHERE Products.ProductID = Categorys.ProductID
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Jun 4, 2014
I have table like this and I need to remove the duplicates selecting the Min Date
IDDate Alloc ProdWater Tub Cas
3752011-10-10 00:00:00.00000014.70
3752011-10-11 00:00:00.00000014.70
3232014-04-24 00:00:00.000000352555.7
3232014-04-26 00:00:00.000000352555.7
3562014-04-01 00:00:00.000000318.8471.1
3562014-04-02 00:00:00.000000318.8471.1
3562014-04-03 00:00:00.000000318.8471.1
3562014-04-04 00:00:00.000000318.8471.1
3232014-05-20 00:00:00.000000649.1976.9
3232014-05-21 00:00:00.000000649.1976.9
3232014-05-22 00:00:00.000000649.1976.9
I would like my result set to be like this:
3752011-10-10 00:00:00.00000014.70
3232014-04-24 00:00:00.000000352555.7
3562014-04-01 00:00:00.000000318.8471.1
3232014-05-20 00:00:00.000000649.1976.9
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Oct 15, 2007
[SELECT coalesce(a4.key,a3.key,a2.key,a.key) as parent_key,
a.key as child_key,
a.comp_name
FROM .......lots of JOINS..........]
that's what I have, and I need to find all instances where parent_key=child_key.
I've been trying something similiar to...
[SELECT name, count(name), name2, count(name2)
FROM people
GROUP BY name, name2
HAVING (count(name)>1 AND count(name2)>1)]
The problem is that I keep getting error messages because I can't use
the alias' or sum(coalesce(.....)).
I was hoping you guys might have a suggestion for me. Thanks ahead of time.
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Apr 15, 2014
I am facing a problem in writing the stored procedure for multiple search criteria.
I am trying to write the query in the Procedure as follows
Select * from Car
where Price=@Price1 or Price=@price2 or Price=@price=3
and
where Manufacture=@Manufacture1 or Manufacture=@Manufacture2 or Manufacture=@Manufacture3
and
where Model=@Model1 or Model=@Model2 or Model=@Model3
and
where City=@City1 or City=@City2 or City=@City3
I am Not sure of the query but am trying to get the list of cars that are to be filtered based on the user input.
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Aug 13, 2006
Hey all,I am having some serious trouble getting the correct syntax for a select statement to work the way I need it, any help I could get on this would be greatly appreciated.I have a table called Units which stores computers and a table called Software which stores software. I have a bit field in Units called OEM, when this is set to true I don't want the select statement to pull this unit down when I am assigning software to other units.Here is my select statement: SELECT Software.SID, Software.SN, Software.Name, Users.First + ' ' + Users.Last AS 'Assigned User', Units.Make + '-' + Units.Model AS 'Assigned Unit' FROM dbo.Software LEFT JOIN dbo.Units ON Software.SN = Units.SN LEFT JOIN dbo.Users ON Units.UID = Users.UID WHERE (Units.OEM = 'FALSE') AND (Software.SN LIKE '%' + @SearchString + '%')Everything works as expected, unless of course the unit has no software assigned to it yet, it won't return it because its not tied to a Units.OEM field. Is there anyway to have it return ALL records that even arn't joined OR are joined but have OEM set to false?Thanks, let me know if I need to clear anything up.-Matthew
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Nov 9, 2007
Ok, so right now we have a bunch of queries similar to the following:
Code:
use db001 select co#=(001), fieldvalue from tablename where fieldid = '1'
use db002 select co#=(002), fieldvalue from tablename where fieldid = '1'
what i need to find is if there are duplicates of fieldvalue and have it display all in one.
Basically right now we run all these there are 25 databases and we export everything to a file and then open it in excel. we then format it it so its just co# and fieldvalue and then look for duplicates.
i would like to avoid the whole excel part and just run a query that will display any duplicates of fieldvalue across all 25 databases in "tablename"
hope that makes sense. - Thanks
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Mar 21, 2008
Hi! I have a general SQL CE v3.5 design question related to table/file layout. I have an system that has multiple tables that fall into categories of data access. The 3 categories of data access are:
1 is for configuration-related data. There is one application that will read/write to the data, and a second application that will read the data on startup.
1 is for high-performance temporal storage of data. The data objects are all the same type, but they are our own custom object and not just simple types.
1 is for logging where the data will be permanent - unless the configured size/recycling settings cause a resize or cleanup. There will be one application writing alot [potentially] of data depending on log settings, and another application searching/reading sections of data.
When working with data and designing the layout, I like to approach things from a data-centric mindset, because this seems to result in a better performing system. That said, I am thinking about using 3 individual SDF files for the above data access scenarios - as opposed to a single SDF with multiple tables. I'm thinking this would provide better performance in SQL CE because the query engine will not have alot of different types of queries going against the same database file. For instance, the temporal storage is basically reading/writing/deleting various amounts of data. And, this is different from the logging, where the log can grow pretty large - definitely bigger than the default 128 MB. So, it seems logical to manage them separately.
I would greatly appreciate any suggestions from the SQL CE experts with regard to my approach. If there are any tips/tricks with respect to different data access scenarios - taking into account performance, type of data access, etc. - I would love to take a look at that.
Thanks in advance for any help/suggestions,
Bob
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Dec 16, 2007
Hi all,
I have 10 tables with unique values such as mobile no: and message in each table.But now the problem is that this same mobile no: may be there in other tables.How can i eliminate the records from other tables.Can anyone tel me a suggestion.
Thank U.
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Jan 6, 2014
I need to remove duplicate data from around 25 tables. I want to use a while loop to go through all tables. If I list out all of the column names the query runs fine, but since there are 25 tables some with 50 plus columns I was hoping to use something like the following, which errors out because my sub queries return more than one result.
SELECT q.* from
(Select ROW_NUMBER() OVER ( Partition BY (SELECT [name] AS [Name] FROM syscolumns
WHERE id = (SELECT id FROM sysobjects
WHERE type = 'U'
AND [Name] = 'Orders')
)
Order by (select top 1 [name] AS [Name] FROM syscolumns
[Code] ....
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Oct 26, 2015
I have a table that exists of Serial, MSDSID and other fields.
What I need to check is to see if there are Serial numbers that multiple MSDSID numbers.
So if I have
Serial MSDSID
001 23
002 24
003 25
004 23
005 26
006 24
The results would be
Serial MSDSID Count
001 23 2
004 23 2
002 24 2
006 24 2
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Nov 26, 2007
hi all
I have been posting in VB.NET forum ,but i am new to this forum.
I am working on an application using vast amount of data . So we get data in flatfiles. We used to get data for two or three months in more than three or four flat files .Some time we try to load the same files more than once .So it leads to duplicates in tables
I heard that there is some settings in table , so that it will not allow the same data once it is imported .
if anybody knows about this please help me
thanks & regards
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Aug 11, 2015
I have a bunch of contacts that I've scored how well their names match to other contacts in the same business. I can programmatically figure out how to parse the results, but would like to know how to do this via SQL. My problem is for Business_fk 968976 I have 7 contacts. In the end I should have 4 contacts based on name match. For the business key listed Gerardo Lopez is in the ContactScore table twice for Contact keys 7355719 and 57028145. I then have two rows like so:
PossibleBusinessContactMatch_pk BusinessContact_fk Business_fk BusinessContactMatch_fk MatchTypeCode MatchScore MatchRank FirstName LastName Phone Email
------------------------------- ------------------ ----------- ----------------------- ------------- ----------- ----------- -------------------------------------------------- -------------------------------------------------- ---------- --------------------------------------------------------------------------------------------------------------------------------
1772960 57028145 968976 7355719 C 46 1 GERARDO I LOPEZ 8162214000
838834 7355719 968976 57028145 C 50 1 GERARDO
Each reference each other, and 2 is a good case, a more difficult case would have key 1 listed 10 times showing a ContactMatch_fk of 2 - 11, and then Contact_fk 2 listed 10 times with a ContactMatch_fk of 1, 3-11.I know 57028145 maps to 7355719 from the first row in the ContactScore table, so when Contact_fk of 7355719 comes up I should be able to skip it and not process that match. Hopefully that makes sense. Anyway here is the test data:
IF EXISTS (SELECT * FROM sys.objects WHERE object_id = OBJECT_ID(N'[dbo].[ContactScore]') AND type in (N'U'))
DROP TABLE [dbo].[ContactScore];
GO
CREATE TABLE [dbo].[ContactScore]
(
[ContactScore_pk]INT NOT NULL,
[Contact_fk]INT NOT NULL,
[code]..
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Jul 13, 2015
I have 2 tables below:
Table 1:
Product No Quantity
A 1
B 2
C 3
Table 2:
Product No Grade Quantity
A Good
A Normal
A Bad
B Good
B Bad
C Good
C Normal
C Bad
In Table 2, Product No divided by Grade. I want to lookup the Quantity from Table 1 to Table 2. The same Product No will have 1 value, the other value is 0. The result for Column Quantity should be like this:
Table 2:
Product No Grade Quantity
A Good 1
A Normal 0
A Bad 0
B Good 2
B Bad 0
C Good 3
C Normal 0
C Bad 0
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Aug 22, 2007
My basic situation is this - I ONLY want duplicates, so the oppositeof DISTINCT:I have two tables. Ordinarily, Table1ColumnA corresponds in a one toone ratio with Table2ColumnB through a shared variable. So if I queryTableB using the shared variable, there really should only be onrecord returned. In essence, if I run this and return TWO rows, it isvery bad:select * from TableB where SharedVariable = 1234I know how to join the tables on a single record to see if this is thecase with one record, but I need to find out how many, among possiblymillions of records this affects.Every record in Table1ColumnA (and also the shared variable) will beunique. There is another column in Table1 (I'll call itTable1ColumnC) that will be duplicated if the record in Table2 is aduplicate, so I am trying to use that to filter my results in Table1.I am looking to see how many from Table1 map to DUPLICATE instances inTable2.I need to be able to say, in effect, "how many unique records inTable1ColumnA that have a duplicate in Table1ColumnC also have aduplicate in Table2ColumnB?"Thanks if anyone can help!-- aknoch
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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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Feb 28, 2006
I want to select multiple records based on descriptions that are the same. Descriptions is my column and I really want to find duplicate records based on the description column.
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Mar 18, 2008
I have a product table that has a productID column and a productName column. Then I have a productCategory table that associates productIDs with categoryIDs. And lastly I have a category table containing a categoryID and categoryName. I want to write a query that will return a table with three columns...productID, productName, and and calculated column containing the categories the product belongs to separated by a comma. A sample output would be...
ProductID____ProductName____Categories
1____________Green Flats____Footwear, Accessories, Women's Apparel
2____________Purple Belt____Accessories, Women's Apparel
3____________Pink Tunic_____Women's Apparel
If any of this isn't clear please feel free to write with questions.
So far I have this query -
SELECT Products.ProductID, ProductName, CategoryName FROM Products, ProductCategory, Categories WHERE Product.ProductID = ProductCategory.ProductID AND Categories.CategoryID = ProductCategory.CategoryID
This returns....
ProductID_____ProductName____CategoryName
1_____________Green Flats____Shoes
1_____________Green Flats____Accessories
1_____________Green Flats____Women's Apparel
2_____________Purple Belt____Accessories
2_____________Purple Belt____Women's Apparel
etc....
Any suggestions on how to remedy this???
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Jul 23, 2005
Hello All,I have this table:CREATE TABLE [dbo].[tbl_TESTING] ([ROW_ID] [int] IDENTITY (1, 1) NOT NULL ,[FNAME] [varchar] (50) COLLATE SQL_Latin1_General_CP1_CI_AS NULL ,[LASTNAME] [varchar] (50) COLLATE SQL_Latin1_General_CP1_CI_AS NULL ,[MOVEDINYR] [int] NULL ,[MOVEDOUTYR] [int] NULL) ON [PRIMARY]GOwith these records:INSERT INTO tbl_TESTINGVALUES('JAMES', 'TAYLOR', '1995', '2000')INSERT INTO tbl_TESTINGVALUES('JAMES', 'TAYLOR', '1994', '2005')What I would like to do is be able to select FIRSTNAME, LASTNAME,MIN(MOVEDINYR), MAX(MOVEDOUTYR) for JAMES TAYLOR e.g.FIRSTNAME=JAMESLASTNAME=TAYLORMOVEDINYR=1994MOVEDOUTYR=2005Some sql syntax help appreciated,thanks in advance!
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Apr 29, 2008
I have a sql select query that I'm pulling from a "Years" table to link to 3 columns in an Items table.ZCValuesYear table has two colums: YearID and YearYearID Year1 20042 20053 20064 20075 2008...I want to bind the "Year" value to the three colums in the ZCItem table: ItemUseFirstYearID ItemUseLastYearID ItemYearIDThe query below will pull all the "ID's" for each of the colums, but how would I make it pull the "Year" value (instead of record 4, it would pull 2007 instead)?<asp:SqlDataSource ID="sqlItemSelect" runat="server" ConnectionString="<%$ ConnectionStrings:MyConnString %>" SelectCommand="SELECT ZCPartVault.PartVaultID, ZCPartVault.PartVaultItemID, ZCValuesYear.Year, ZCItem.ItemName, ZCItem.ItemUseFirstYearID, ZCItem.ItemUseLastYearID FROM ZCPartVault FULL OUTER JOIN ZCItem ON ZCPartVault.PartVaultItemID = ZCItem.ItemID FULL OUTER JOIN ZCValuesYear ON ZCItem.ItemUseLastYearID = ZCValuesYear.YearID AND ZCItem.ItemUseFirstYearID = ZCValuesYear.YearID AND ZCItem.ItemYearID = ZCValuesYear.YearID" > </asp:SqlDataSource>
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Mar 28, 2014
I have data like the following:
ID COUNTER DATA
1 10 BLAH
1 20 BLAH
2 10 BLAH
3 10 BLAH
2 20 BLAH
2 30 BLAH
What I want to return is:
1 20 BLAH
2 30 BLAH
3 10 BLAH
I want the top 1, having the highest counter from each ID. This is a highly simplified version of that I am pulling which also is between a date range, but same principle.
IE: SELECT * FROM Table WHERE ID in (SELECT DISTINCT ID FROM Table WHERE Date BETWEEN <date> AND <date>
I'd rather keep it in one statement if possible, but if I have to do it in multiple passes then so be it.
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Jan 22, 2008
Here's my tables:
Students
-----------------------
StudentID | StudentName
-----------------------
StudentClasses
-----------------------
StudentID | ClassName
-----------------------
I'm trying to put data into a gridview in ASP.NET 2.0 like this:
Student | Classes
-----------------
Name1 | ClassName1 ClassName2 ClassName3
Name2 | ClassName1
Name3 | ClassName1 ClassName2
I just need to retrieve names of each class that a student is taking, then print them out one after another.
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Apr 11, 2008
Your help is greatly appreciated. How do you query each one of the following:
1) SELECT FieldValue WHERE DateTime is from 8:30AM - 12:00PM and 6:00PM - 9:30PM on Mondays thru Fridays (i.e. exclude Sat & Sun) for the whole month of January 2008.
2) SELECT FieldValue WHERE DateTime is from 9:30PM - 8:30AM on Mondays thru Fridays, AND ALL-DAY on Saturdays & Sundays for the whole month of January 2008.
Thank you in advance.
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Apr 17, 2008
Hi,
I am having two tables Products and Transaction
In products I have ProductID and Description. (10 Records)
In Transaction I have ProductID, Lot, Quantity and ListID . ( 4 Million Records)
When I use the inner join between these tables as below query its taking lot of time to give output.
select ProductID, Desc, Lot, qty from Products inner join Transactions on Products.ProductID = Transactions.ProductID
where ListID = '9090909'
otherwise, if I use the below query its takes very few milli seconds to give output but I am not able to get the description from the product table.
select * from Transactions TR where TR.ListID= '9090909' and TR.ProductID in
(select NDC from Products where Products.ProductID = TR.ProductID)
Any from can help me to get the description too at very few times.
Regards,
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