Removing Duplicate Records With Criteria
Mar 9, 2015
I have regular work that requires me to extract a bunch of customer records from our database, and then remove duplicate address destinations (so we dont mail the same address more than once).
I can currently achieve this using a combination of my poor SQL skills and Excel, but it's really not working out for me, so looking for SQL wizardry necessary to do it just in SQL.
Relevant fields:
Member.AddressBarcode (This is a unique barcode (Text representation of a base-3 number) based on the customer address. So if there's more than one record in the pulled records with the same barcode, we then look at Member.MemberTypeID to determine whether to include this record in the results or discard it as a duplicate. Note that AddressBarcode may be blank if the mailing address couldn't be validated, if it is blank we don't discard it since there is no easy way to detect duplicate addresses without the barcode)
Member.MemberTypeID (This is the type of member account. We have 3 types - Single, Joint Primary, Joint Secondary, represented in this field by the numbers 1/2/3. This is also the order of preference of who to mail. So if there is a Joint Primary and Joint Secondary with the same mailing barcode, we want to discard the Joint Secondary from the results, so that the Joint Primary is the record we include in the results of who to mail.)
Member.ID (Unique numeric ID for each customer. Kind of irrelevant here, but it's a key)
So some pseudo code for what I'm trying to achieve is:
(Member.MemberTypeID = 1)
OR (Member.MemberTypeID = 2 AND Member.AddressBarcode not in results of Member.MemberTypeID = 1)
OR (Member.MemberTypeID = 3 AND Member.AddressBarcode not in results of Member.MemberTypeID = 2 AND Member.AddressBarcode not in results of Member.MemberTypeID = 1)
I suspect it requires some sort of join...
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Dec 5, 2007
Dear All
This is query i have written is giving following output.
FormCodeRefCodeSerialnoDateTime
R1-196H1-68A12232138/6/2007 19:38:11
R1-196H1-68A12232138/6/2007 19:38:14
R1-205H1-67XS23124148/6/2007 19:36:08
R1-205H1-67XS23124148/6/2007 19:36:10
R1-220H1-66F433365348/6/2007 19:30:27
R1-220H1-66F433365348/6/2007 19:30:29
R1-400H1-64ER53436648/6/2007 19:24:23
R1-400H1-64ER53436648/6/2007 19:24:26
R1-408H1-65TE4626268/6/2007 19:24:23
R1-408H1-65TE4626268/6/2007 19:25:00
I want the output like this,it should take only Min Datecreated
FormCodeRefCodeSerialnoDateTime
R1-196H1-68A12232138/6/2007 19:38:14
R1-205H1-67XS23124148/6/2007 19:36:08
R1-220H1-66F433365348/6/2007 19:30:27
R1-400H1-64ER53436648/6/2007 19:24:23
R1-408H1-65TE4626268/6/2007 19:24:23
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Jul 11, 2006
I have a table that holds the following
1 7530568 87143 OESCHD 1/5/2006 6:31:58 AM
1 7530568 87143 OESCHD 1/5/2006 7:02:36 AM
for each 7530568 ordernumber there should only be one OESCHD status.
This is the query I'm using to insert the data sent to me.
INSERT INTO ORDER_EVENTS
SELECT d.division as division,
dt.orderNum as orderNum,
dt.poNum as poNum,
dt.statusCode as statusCode,
dt.statusChangeDate as statusChangeDate
FROM dt_Order_Events dt INNER JOIN
division d ON dt.division = d.divisionShort INNER JOIN
status s ON s.division = d.division AND s.statCode = dt.statusCode
WHERE directive <> 'C' AND
dt.orderNum IN (SELECT orderNum FROM ORDER_HEADER)
This works fine when used with in the hourly transactional update. But When I ran it for the Bulk UpDate (so we'd have historical data) it allowed orders to have statuses to many times.
I am not a SQL guru, I have no idea how to write a sql statement or stored proc that will remove the duplicate records. or how to change what I have to prevent further ones.
Any help would be apreciated.
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Oct 9, 2007
hi All,
I have to remove non-useful and duplicate records containing NULL , Blanks and extra spaces (either on left or right side of the column values) etc from all the tables in my server's DB XYZ weekly thru a a scheduled job with the help of a Stored Proc, that s i guess called Purging og DB. Plz help how i can do it with T-SQL.
Also i have to find out and remove all the duplicate DB objects(tables) from the DB .e.g. a table existing with name TABLE_TEST or TABLE_DEBUG etc for an original table TABLE , making sure no any of the base table is dropped.
Plz help me reagrding these two problems.
Thanks in advance for the quick replies.
Mohit
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Feb 23, 2001
Hi all,
I have one table in which one column contains duplicate values. My question is how i can use T-SQL so that i can retrive values for all columns in the table which are distinct and retriving the single value from column which contains duplicate values.
(I know distinct)
Thanks in advance.
Minesh.
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Dec 3, 2005
Hi,
Please give the DML to SELECT the rows avoiding the duplicate rows. Since there is a text column in the table, I couldn't use aggregate function, group by (OR) DISTINCT for processing.
Table :
create table test(col1 int, col2 text)
go
insert into test values(1, 'abc')
go
insert into test values(2, 'abc')
go
insert into test values(2, 'abc')
go
insert into test values(4, 'dbc')
go
Please advise,
Thanks,
MiraJ
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Apr 23, 2008
Hi There,
I am having a 1st listbox which is populating production lines, 2nd combobox to populate the production units. From here , the user will be able to select multiple production units from the combobox and hence populate the variable in listbox 3.
This is the query that I'm using to query on the variable table:
'SELECT DISTINCT PU_Id,Var_Id,Var_Desc from Variables
where PU_Id IN (@ProductionUnits)'
The problem now is that this would return all the variables for the selected production units and for those variables that have the same name, they would appear in the listbox as duplicates.
I wonder if there's any way to filter off or remove the duplicates in the listbox 3 by using sql query?
Thanks in advance for the help.
ksyong17
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Dec 24, 2007
Hi,
I have results from a survey in a table, every entry is assigned a unique ID. I want to remove duplicate entries based on the survey data but not on the unique ID (obviously).
So far I have...SELECT DISTINCT RespondantID, Q1, Q2, Q3, Q4, Q5, Q6, Q7, Q8, Q9, Q10, Q11, Q12, Q13
FROM Results
But that gives...
1 - Anonymous
1
1
1
1
1
1
1
1
1
1
1
1
1
2 - Anonymous
2
2
2
2
2
2
2
2
2
2
2
2
2
3 - Martin
2
2
2
2
2
2
2
2
2
2
2
2
2
I.e. in the above example, it would seem that 'Martin' submitted his data once and then submitted it again with his name.
How can I remove the '2 - Anonymous' frrom the data set?
Thanks!
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Feb 14, 2012
i've to generate a notepad using this query in vb.net :
strSql = "Select count(*), d.ShareholderId, d.UsufructId, d.BnkAccount, b.SBMCode, " & _
"LTRIM(ISNULL(d.TitleCode + ' ', '')) + LTRIM(ISNULL(d.Forename + ' ', '')) + d.Surname as ShName," & _
"d.BankCode, (select count(*) from (select ShareholderId from dividend " & _
"where CompCode = 'L1' and PaymentMode = 'B' group by ShareholderId, UsufructId, " & _
[Code]....
In the select statement i need to select "d.amount" as well. When i do so, it ask me to insert it in the group by option or in an aggregate function.
Grouping by "d.amount" returns extra field as there can be 2 similar "d.shareholderId" but with different amount.
how to group the "d.amount" without having repetition in the "d.shareholderid" ??
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Aug 9, 2012
I am trying to get people from my table that have closed accounts. However, in my table many people have more than one account. They will have multiple closed accounts and some active accounts. I need to get the people with only closed accounts.
Values in the table
Code:
name surname status Closed Number
----------- --------- ----------- ------------- ----------------------------
Jeff Burns closed 2012/01/01 142
Tina Drewmor closed 2008/05/20 546
Jeff Burns active 1900/01/01 354
Kyle Higgin active 1900/01/01 851
Tina Drewmor closed 2009/04/14 154
The query I am using so far is:
Code:
select
d.name,
d.surname,
s.status,
s.closed,
s.number
from
d d inner join s s on d.number = s.number
where
s.status = 'closed'
What I need to see in the results
Code:
name surname status Closed Number
----------- --------- ----------- ------------ -----------------------------
Tina Drewmor closed 2008/05/20 546
Tina Drewmor closed 2009/04/14 154
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Jan 3, 2007
Hi All,
Below is a snippet of MS SQL inside some VB that retieves
Commodity info such as product names and related information and returns the results in an ASP Page. My problem is that with certain searches, elements returned in the synonym field repeat. For instance, on a correct search I get green, red, blue, and yellow which is correct. On another similar search with different commodity say for material, I get Plastic, Glass,Sand - Plastic, Glass,Sand - Plastic, Glass, Sand. I want to remove the repeating elements returned in this field. IOW, I just need one set of Plastic, Glass and Sand. I hope this makes sense.
Below is the SQL and the results from the returned page.
PS I tried to use distinct but with no luck I want just one of each in the example below.
Thanks in Advance!
Scott
==============================
SQL = ""
SQL = "SELECT B.CIMS_MSDS_NUM," & _
"A.COMMODITY_NUMBER, " & _
"B.CIMS_TRADE_NME," & _
"B.CIMS_MFR_NME," & _
"B.CIMS_MSDS_PREP_DTE," & _
"B.APVL_CDE," & _
"COALESCE(C.REGDMATLCD,'?') AS DOTREGD," & _
"COALESCE( D.CIMS_TRADE_SYNM,'NO SYNONYMS') AS SYNONYM, " & _
"A.MSDS_CMDTY_VERIF, " & _
"A.CATALOG_ID " & _
"FROM ( MATEQUIP.VMSDS_CMDTY A " & _
" RIGHT OUTER JOIN MATEQUIP.VCIMS_TRD_PROD_INF B " & _
" ON A.CIMS_MSDS_NUM = B.CIMS_MSDS_NUM " & _
" LEFT OUTER JOIN MATEQUIP.VDOT_TRADE_PROD C " & _
" ON A.CIMS_MSDS_NUM = C.MSDSNUM " & _
" LEFT OUTER JOIN MATEQUIP.VCIMS_TRD_PROD_SYN D " & _
" ON B.CIMS_MSDS_NUM = D.CIMS_MSDS_NUM) "
SQL1 = ""
SQL1 = SQL
SQL = SQL & "WHERE " & Where & " "
==================================
Here is a piece of the problem field, note repeating colors etc.
CCM-PAINTS & COATINGS (1/26/98)F65E36 ORANGE F65W1 GLOSS WHITEF65B50 WR. IRON FLAT BLACK F65R2 TARTAR RED DARKF65B4 SEMI-GLOSS BLACK F65R1 VERMILIONF65B1 GLOSS BLACK F65N11 RICH BROWNF65A49 ASA #49 GRAY F65M1 MAROONF65A4 MACHINE TOOL GRAY F65L10 BRIGHT BLUEF65A2 LIGHT GRAY F65L7 PALE BLUEF65A1 WARM GRAY F65L6 TURQUOISEF65L4 DARK BLUEF65L3 LIGHT BLUE V65V100 MIXING CLEARF65H1 IVORY F65Y48 LIGHT YELLOWF65G41 FOREST GREEN F65Y44 LEMON YELLOWF65G40 MEDIUM GREEN F65W100 MIXING WHITEF65G39 LIGHT GREEN F65W4 TINTING WHITEF65G16 SEMI-GLOSS MACHINERY GRE F65W3 CUSTOM WHITEF65E37 INTERNATIONAL ORANGE F65W2 SEMI-GLOSS WHITEF65B50 WR. IRON FLAT BLACK F65R2 TARTAR RED DARKF65B4 SEMI-GLOSS BLACK F65R1 VERMILIONF65B1 GLOSS BLACK F65N11 RICH BROWNF65A49 ASA #49 GRAY F65M1 MAROONF65A4 MACHINE TOOL GRAY F65L10 BRIGHT BLUEF65A2 LIGHT GRAY F65L7 PALE BLUEF65A1 WARM GRAY F65L6 TURQUOISEDISAPPROVED BY CCM-PAINTS & COATINGS (1/26/98)F65L4 DARK BLUEF65L3 LIGHT BLUE V65V100 MIXING CLEARF65H1 IVORY F65Y48 LIGHT YELLOWF65G41 FOREST GREEN F65Y44 LEMON YELLOWF65G40 MEDIUM GREEN F65W100 MIXING WHITEF65G39 LIGHT GREEN F65W4 TINTING WHITEF65G16 SEMI-GLOSS MACHINERY GRE F65W3 CUSTOM WHITEF65E37 INTERNATIONAL ORANGE F65W2 SEMI-GLOSS WHITEF65E36 ORANGE F65W1 GLOSS WHITEDISAPPROVED BY CCM-PAINTS & COATINGS (1/26/98)F65A2 LIGHT GRAY F65L7 PALE BLUEF65A1 WARM GRAY F65L6 TURQUOISEF65B4 SEMI-GLOSS BLACK F65R1 VERMILIONF65B1 GLOSS BLACK F65N11 RICH BROWNF65A49 ASA #49 GRAY F65M1 MAROONF65A4 MACHINE TOOL GRAY F65L10 BRIGHT BLUEF65L4 DARK BLUEF65L3 LIGHT BLUE V65V100 MIXING CLEARF65H1 IVORY F65Y48 LIGHT YELLOWF65G41 FOREST GREEN F65Y44 LEMON YELLOWF65G40 MEDIUM GREEN F65W100 MIXING WHITEF65G39 LIGHT GREEN F65W4 TINTING WHITEF65G16 SEMI-GLOSS MACHINERY GRE F65W3 CUSTOM WHITEF65E37 INTERNATIONAL ORANGE F65W2 SEMI-GLOSS WHITEF65E36 ORANGE F65W1 GLOSS WHITEF65B50 WR. IRON FLAT BLACK F65R2 TARTAR RED DARKF65A1 WARM GRAY F65L6 TURQUOISEDISAPPROVED BY CCM-PAINTS & COATINGS (1/26/98)F65B1 GLOSS BLACK F65N11
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Feb 2, 2008
Hi, Please help me with an SQL Query that fetches all the records from the three tables but a unique record for each forum and topicid with the maximum lastpostdate. Please provide separate solutions for SqlServer2000/2005.
I have four tables namely – Forums,Topics,Threads and Messages in SQL Server2000 (scripts for table creation and insertion of test data given at the end). Now, I have formulated a query as below :-
SELECT Forums.forumid AS ForumID,Topics.topicid AS TopicID,Topics.name AS TopicName,LastPosts.date as LastPostDate,LastPosts.author AS Author,
(select count(threadid) from Threads where Threads.topicid=Topics.topicid) as NoOfThreads
FROM Forums JOIN Topics ON Forums.forumid=Topics.forumid
LEFT OUTER JOIN
(
SELECT Topics.forumid,Threads.topicid,Messages.date,Messages.author FROM Topics
INNER JOIN Threads ON Topics.topicid = Threads.topicid
INNER JOIN Messages ON Threads.threadid=Messages.threadid
WHERE Messages.date=(SELECT MAX(date) FROM Messages WHERE Messages.threadid = Threads.threadid)
) as LastPosts
ON LastPosts.forumid = Topics.forumid AND LastPosts.topicid = Topics.topicid
Whose result set is as below:-
forumid
topicid
name
LastPostDate
author
NoOfThreads
1
1
Java Overall
2008-02-02 13:06:06.267
l@m.com
2
1
1
Java Overall
2008-01-27 14:46:41.000
c@b.com
2
1
2
JSP
NULL
NULL
0
1
3
EJB
NULL
NULL
0
1
4
Swings
2008-01-27 15:12:51.000
p@q.com
1
1
5
AWT
NULL
NULL
0
1
6
Web Services
NULL
NULL
0
1
7
JMS
NULL
NULL
0
1
8
XML,HTML
NULL
NULL
0
1
9
Javascript
NULL
NULL
0
2
10
Oracle
NULL
NULL
0
2
11
Sql Server
NULL
NULL
0
2
12
MySQL
NULL
NULL
0
3
13
CSS
NULL
NULL
0
3
14
FLASH/DHTLML
NULL
NULL
0
4
15
Best Practices
NULL
NULL
0
4
16
Longue
NULL
NULL
0
5
17
General
NULL
NULL
0
I want the result set as follows:-
forumid
topicid
name
LastPostDate
author
NoOfThreads
1
1
Java Overall
2008-02-02 13:06:06.267
l@m.com
2
1
2
JSP
NULL
NULL
0
1
3
EJB
NULL
NULL
0
1
4
Swings
2008-01-27 15:12:51.000
p@q.com
1
1
5
AWT
NULL
NULL
0
1
6
Web Services
NULL
NULL
0
1
7
JMS
NULL
NULL
0
1
8
XML,HTML
NULL
NULL
0
1
9
Javascript
NULL
NULL
0
2
10
Oracle
NULL
NULL
0
2
11
Sql Server
NULL
NULL
0
2
12
MySQL
NULL
NULL
0
3
13
CSS
NULL
NULL
0
3
14
FLASH/DHTLML
NULL
NULL
0
4
15
Best Practices
NULL
NULL
0
4
16
Longue
NULL
NULL
0
5
17
General
NULL
NULL
0 I want all the rows from the Forums,Topics and Threads table and the row with the maximum date (the last post date of the message) from the Messages table as shown above.
When I use the query by using only three tables namely Forums,Topics and Threads, I get the correct result. The query is as:-
SELECT Topics.forumid AS ForumID,Forums.name AS ForumName,Topics.topicid as TopicID,Topics.name as TopicName,
LastPosts.author AS Author,LastPosts.lastpostdate AS LastPost,
(select count(threadid) from threads where Threads.topicid=Topics.topicid) as NoOfThreads
FROM Forums JOIN Topics ON Forums.forumid=Topics.forumid LEFT OUTER JOIN (
SELECT Topics.forumid, Threads.topicid, Threads.lastpostdate, Threads.author FROM Threads
INNER JOIN Topics ON Topics.topicid = Threads.topicid
WHERE Threads.lastpostdate IN (SELECT MAX(lastpostdate) FROM threads WHERE Topics.topicid = Threads.topicid)
) AS LastPosts
ON LastPosts.forumid = Topics.forumid AND LastPosts.topicid = Topics.topicid
Whose result set is as:-
ForumID
ForumName
TopicID
TopicName
Author
LastPost
NoOfThreads
1
Developers
1
Java Overall
x@y.com
2008-01-27 14:48:53.000
2
1
Developers
2
JSP
NULL
NULL
0
1
Developers
3
EJB
NULL
NULL
0
1
Developers
4
Swings
p@q.com
2008-01-27 15:12:51.000
1
1
Developers
5
AWT
NULL
NULL
0
1
Developers
6
Web Services
NULL
NULL
0
1
Developers
7
JMS
NULL
NULL
0
1
Developers
8
XML,HTML
NULL
NULL
0
1
Developers
9
Javascript
NULL
NULL
0
2
Database
10
Oracle
NULL
NULL
0
2
Database
11
Sql Server
NULL
NULL
0
2
Database
12
MySQL
NULL
NULL
0
3
Desginers
13
CSS
NULL
NULL
0
3
Desginers
14
FLASH/DHTLML
NULL
NULL
0
4
Architects
15
Best Practices
NULL
NULL
0
4
Architects
16
Longue
NULL
NULL
0
5
General
17
General
NULL
NULL
0
The scripts for creating the tables and inserting test data is as follows in an already created database:-
if exists (select * from dbo.sysobjects where id = object_id(N'[dbo].[FK__Topics__forumid__35BCFE0A]') and OBJECTPROPERTY(id, N'IsForeignKey') = 1)
ALTER TABLE [dbo].[Topics] DROP CONSTRAINT FK__Topics__forumid__35BCFE0A
GO
if exists (select * from dbo.sysobjects where id = object_id(N'[dbo].[FK__Threads__topicid__34C8D9D1]') and OBJECTPROPERTY(id, N'IsForeignKey') = 1)
ALTER TABLE [dbo].[Threads] DROP CONSTRAINT FK__Threads__topicid__34C8D9D1
GO
if exists (select * from dbo.sysobjects where id = object_id(N'[dbo].[FK__Messages__thread__33D4B598]') and OBJECTPROPERTY(id, N'IsForeignKey') = 1)
ALTER TABLE [dbo].[Messages] DROP CONSTRAINT FK__Messages__thread__33D4B598
GO
if exists (select * from dbo.sysobjects where id = object_id(N'[dbo].[Forums]') and OBJECTPROPERTY(id, N'IsUserTable') = 1)
drop table [dbo].[Forums]
GO
if exists (select * from dbo.sysobjects where id = object_id(N'[dbo].[Topics]') and OBJECTPROPERTY(id, N'IsUserTable') = 1)
drop table [dbo].[Topics]
GO
if exists (select * from dbo.sysobjects where id = object_id(N'[dbo].[Threads]') and OBJECTPROPERTY(id, N'IsUserTable') = 1)
drop table [dbo].[Threads]
GO
if exists (select * from dbo.sysobjects where id = object_id(N'[dbo].[Messages]') and OBJECTPROPERTY(id, N'IsUserTable') = 1)
drop table [dbo].[Messages]
GO
CREATE TABLE [dbo].[Forums] (
[forumid] [int] IDENTITY (1, 1) NOT NULL ,
[name] [varchar] (255) COLLATE SQL_Latin1_General_CP1_CI_AS NOT NULL ,
[description] [varchar] (255) COLLATE SQL_Latin1_General_CP1_CI_AS NOT NULL
) ON [PRIMARY]
GO
CREATE TABLE [dbo].[Topics] (
[topicid] [int] IDENTITY (1, 1) NOT NULL ,
[forumid] [int] NULL ,
[name] [varchar] (255) COLLATE SQL_Latin1_General_CP1_CI_AS NOT NULL ,
[description] [varchar] (255) COLLATE SQL_Latin1_General_CP1_CI_AS NULL
) ON [PRIMARY]
GO
CREATE TABLE [dbo].[Threads] (
[threadid] [int] IDENTITY (1, 1) NOT NULL ,
[topicid] [int] NOT NULL ,
[subject] [varchar] (100) COLLATE SQL_Latin1_General_CP1_CI_AS NOT NULL ,
[replies] [int] NOT NULL ,
[author] [varchar] (100) COLLATE SQL_Latin1_General_CP1_CI_AS NOT NULL ,
[lastpostdate] [datetime] NULL
) ON [PRIMARY]
GO
CREATE TABLE [dbo].[Messages] (
[msgid] [int] IDENTITY (1, 1) NOT NULL ,
[threadid] [int] NOT NULL ,
[author] [varchar] (100) COLLATE SQL_Latin1_General_CP1_CI_AS NOT NULL ,
[date] [datetime] NULL ,
[message] [text] COLLATE SQL_Latin1_General_CP1_CI_AS NOT NULL
) ON [PRIMARY] TEXTIMAGE_ON [PRIMARY]
GO
ALTER TABLE [dbo].[Forums] ADD
PRIMARY KEY CLUSTERED
(
[forumid]
) ON [PRIMARY]
GO
ALTER TABLE [dbo].[Topics] ADD
PRIMARY KEY CLUSTERED
(
[topicid]
) ON [PRIMARY]
GO
ALTER TABLE [dbo].[Threads] ADD
PRIMARY KEY CLUSTERED
(
[threadid]
) ON [PRIMARY]
GO
ALTER TABLE [dbo].[Messages] ADD
PRIMARY KEY CLUSTERED
(
[msgid]
) ON [PRIMARY]
GO
ALTER TABLE [dbo].[Topics] ADD
FOREIGN KEY
(
[forumid]
) REFERENCES [dbo].[Forums] (
[forumid]
)
GO
ALTER TABLE [dbo].[Threads] ADD
FOREIGN KEY
(
[topicid]
) REFERENCES [dbo].[Topics] (
[topicid]
)
GO
ALTER TABLE [dbo].[Messages] ADD
FOREIGN KEY
(
[threadid]
) REFERENCES [dbo].[Threads] (
[threadid]
)
GO
------------------------------------------------------
insert into forums(name,description) values('Developers','Developers Forum');
insert into forums(name,description) values('Database','Database Forum');
insert into forums(name,description) values('Desginers','Designers Forum');
insert into forums(name,description) values('Architects','Architects Forum');
insert into forums(name,description) values('General','General Forum');
insert into topics(forumid,name,description) values(1,'Java Overall','Topic Java Overall');
insert into topics(forumid,name,description) values(1,'JSP','Topic JSP');
insert into topics(forumid,name,description) values(1,'EJB','Topic Enterprise Java Beans');
insert into topics(forumid,name,description) values(1,'Swings','Topic Swings');
insert into topics(forumid,name,description) values(1,'AWT','Topic AWT');
insert into topics(forumid,name,description) values(1,'Web Services','Topic Web Services');
insert into topics(forumid,name,description) values(1,'JMS','Topic JMS');
insert into topics(forumid,name,description) values(1,'XML,HTML','XML/HTML');
insert into topics(forumid,name,description) values(1,'Javascript','Javascript');
insert into topics(forumid,name,description) values(2,'Oracle','Topic Oracle');
insert into topics(forumid,name,description) values(2,'Sql Server','Sql Server');
insert into topics(forumid,name,description) values(2,'MySQL','Topic MySQL');
insert into topics(forumid,name,description) values(3,'CSS','Topic CSS');
insert into topics(forumid,name,description) values(3,'FLASH/DHTLML','Topic FLASH/DHTLML');
insert into topics(forumid,name,description) values(4,'Best Practices','Best Practices');
insert into topics(forumid,name,description) values(4,'Longue','Longue');
insert into topics(forumid,name,description) values(5,'General','General Discussion');
insert into threads(topicid,subject,replies,author,lastpostdate) values (1,'About Java Tutorial',2,'a@b.com','1/27/2008 02:44:29 PM');
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Jun 18, 2014
I have a stored procedure that returns a single row based on a parameter of employee ID. This particular procedure uses a CTE to traverse our org structure. One of the columns is returning a delimited string of Windows login values and due to the business rules, it can contain duplicate values. I need to have that column contain only unique values - no dupes.
For example, this one column could contain something like this:
domainuser1;domainuser2;domainuser2;domainuser 3;
The need is to convert to this:
domainuser1;domainuser2;domainuser3;
I know that's a tall order.
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Oct 18, 2015
How to write a function to remove duplicated characters only if they come in sequence.
Examples
darrk should return dark
eeagle should return eagle
redd should return red
corner should corner as it is as the r's are not in sequence.
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Jun 10, 2006
Hi,Say I have a table Job with columns name, date, salary . I want to getthe name ,date and salary for the date when that person earned maximumsalary. I am using something likeSELECT X.name,X.date,X.salaryFROM job XWHERE X.salary IN(SELECT MAX(Y.salary) FROM job Y where Y.name= X.name);The problem is ; if a person earns maximum salary on two dates, both ofthe dates are printed. I just want to get any one of those two rows.I triedSELECT X.name,Min(X.date),X.salaryFROM job XWHERE X.salary IN(SELECT MAX(Y.salary) FROM job Y where Y.name= X.name);but it gives error.Can anybody please suggest a solution?Regards,Aamir
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Sep 28, 2007
I have tested the code below to remove duplicate table entries based on the field IntOOS. This code works; however, I want to ensure I am removing the oldest entries and keeping the most recent entry. The field to key on this would be something like Max(ID). What would be the best way to ensure I keep the most recent table entry?
/*** Removes duplicate rows from ampfm.rpt_AdtVisitDiag table
by Chuck King 20070928
***/
;WITH CTE
as
(
SELECT
ROW_NUMBER() OVER (Partition By IntOOS Order BY IntOOS) AS ROWID
,DischDate
,AdmDiagCode
,ID
,AdmDiagCodeDesc
,AdmittingDiagnosis
,AnyDx
,DischDx
,ECode
,IntOOS
,PrinDxAnesDesc
,PrinDxAnesInd
,PrinDxCode
,PrinDxCondDesc
,PrinDxCondInd
,PrinDxDesc
,PrinDxEqualsAdmDxYnu
,SecDx10AnesDesc
,SecDx10AnesInd
,SecDx10Code
,SecDx10CondDesc
,SecDx10CondInd
,SecDx10Description
,SecDx11AnesDesc
,SecDx11AnesInd
,SecDx11Code
,SecDx11CondDesc
,SecDx11CondInd
,SecDx11Description
,SecDx12AnesDesc
,SecDx12AnesInd
,SecDx12Code
,SecDx12CondDesc
,SecDx12CondInd
,SecDx12Description
,SecDx13AnesDesc
,SecDx13AnesInd
,SecDx13Code
,SecDx13CondDesc
,SecDx13CondInd
,SecDx13Description
,SecDx14AnesDesc
,SecDx14AnesInd
,SecDx14Code
,SecDx14CondDesc
,SecDx14CondInd
,SecDx14Description
,SecDx15Code
,SecDx15Description
,SecDx1AnesDesc
,SecDx1AnesInd
,SecDx1Code
,SecDx1CondDesc
,SecDx1CondInd
,SecDx1Description
,SecDx2AnesDesc
,SecDx2AnesInd
,SecDx2Code
,SecDx2CondDesc
,SecDx2CondInd
,SecDx2Description
,SecDx3AnesDesc
,SecDx3AnesInd
,SecDx3Code
,SecDx3CondDesc
,SecDx3CondInd
,SecDx3Description
,SecDx4AnesDesc
,SecDx4AnesInd
,SecDx4Code
,SecDx4CondDesc
,SecDx4CondInd
,SecDx4Description
,SecDx5AnesDesc
,SecDx5AnesInd
,SecDx5Code
,SecDx5CondDesc
,SecDx5CondInd
,SecDx5Description
,SecDx6AnesDesc
,SecDx6AnesInd
,SecDx6Code
,SecDx6CondDesc
,SecDx6CondInd
,SecDx6Description
,SecDx7AnesDesc
,SecDx7AnesInd
,SecDx7Code
,SecDx7CondDesc
,SecDx7CondInd
,SecDx7Description
,SecDx8AnesDesc
,SecDx8AnesInd
,SecDx8Code
,SecDx8CondDesc
,SecDx8CondInd
,SecDx8Description
,SecDx9AnesDesc
,SecDx9AnesInd
,SecDx9Code
,SecDx9CondDesc
,SecDx9CondInd
,SecDx9Description
,VisitTypeCode
,accountnumber
,DischVisitTypeCode
FROM ampfm.rpt_AdtVisitDiag
)
--Select * From CTE
Delete From CTE Where ROWID > 1
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Oct 14, 2015
I need write a query for removing duplicates, for Example in my table I have columns
A_ID name id
1 sam 10
2 sam 10
3 sam 10
4 sam 10
5 ccc 15
6 ccc 15
7 ccc 15
8 fff 20
9 fff 20
10 fff 20
So now I have duplicates values in id column so now I need to take only one value of each and delete the remaining. I need to take first id value 10,15,20 so only 3 rows should be there in my table.
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Sep 30, 2007
It seems that there should be a solution for my situation, but for the life of me I can't seem to figure it out.
I need to compare two "like" tables, containing similar data. Tbl 1 is "BOOKED" (which is a snapshot of inventory) and tbl 2 is "CURRENT" (the live - working inventory table). If I write my query as follows the the subsequent result is "duplicate" data.
Code Block
SELECT booked.item, booked.bin, booked.quantity, current.bin, current.quantity
FROM BOOKED
LEFT JOIN
CURRENT
ON booked.item = current.item
No matter what type of join I use, there is duplicate data displayed for each table. For example, if there are more bins in the BOOKED table that contain a certain product then the CURRENT table will repeat data and vica versa.
As follows:
Item
Bin
Quantity
Bin
Quantity
12345
A01
500
A01
7680
12345
B01
6
A01
7680
12345
C01
20
A01
7680
54321
G10
1032
E15
1163
54321
G10
1032
F20
523
54321
G10
1032
H30
750
98765
Z20
7000
Z20
8500
98765
Y15
2500
Y15
3000
98765
X10
1200
Y15
3000
What I would like to do is display Bin and Quantity only once and the repeating values as NULL or [BLANK]. Or, to display all of the bins from both tables and only the quantities from each table in relation to the bin found in that table, returning a "0" if no quantity exists.
This is what I'm after:
Item
Bin
Quantity
Bin
Quantity
12345
A01
500
A01
7680
12345
B01
6
B01
0
12345
C01
20
C01
0
54321
G10
1032
E15
1163
54321
F20
0
F20
523
54321
H30
0
H30
750
98765
Z20
7000
Z20
8500
98765
Y15
2500
Y15
3000
98765
X10
1200
X10
0
Is this possible? If so, how?
I also might add that it is ok for each table to contain multiple entries for any given item. This is basically being requested as an inventory variance report - inventory before physical count and immediatly after physical count - and will only be run once a year.
-----------------------------------------------
Just thinking out loud here:
What if I created three subqueries, the first containing only BOOKED information, the second containing only CURRENT information and the third being a UNION of both tables? Something like this:
Code Block
SELECT q3.bin, q1.item, ISNULL(q1.quantity, 0) as QTY_BEFORE, ISNULL(q2.quantity, 0) as QTY_AFTER
FROM
(select item, bin, quantity
from BOOKED)q1
Left Join
(select item, bin, quantity
from CURRENT)q2
on q1.item = q2.item
Left Join
(select bin, item
from BOOKED
UNION
CURRENT)q3
on q1.item = q3.item
Order By q1.item
I don't know if I wrote the UNION statement correctly, but I will have to try this when I get back to work...
Any suggestions?
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May 14, 2008
Hi,
Slightly knotty and hard-to-articulate problem here, so please bear with me.
As part of a series of transactions, I have a table which contains data which looks like this:
AdBookingID adWeeks AdID clientId valueid
----------- ----------- ----------- ----------- -----------
97336 3 95127 248 1007
98220 1 94304 458 1007
98220 1 94304 458 7610
98386 1 88123 319 7604
98388 1 91484 319 7610
98390 1 91963 319 7610
98392 1 92468 319 7601
98392 1 92468 319 7608
The key to this problem is the "valueID". The first digit of the value is significant - the "1" and the "7" in the above mean the values are parts of different groups of search criteria.
What I need to do is to select from this list into a temp table all those bookings (identified by AdBookingID) which have valueIds of both types - i.e. an row in the table where the valueId starts with a 1 and a row in the table where the valueId starts with a 7 - in the above data sample the only AdBooking which qualifies is 98220.
I worked out a method of doing this going by the number of entries each item had in the table:
select count(distinct valueId)
as valueId, adWeeks, clientId, adID, AdBookingID
into #worktable
from #tmp
group by adWeeks, clientId, adID, AdBookingID
having count(distinct valueid) > 1
Which is largely accurate. But - and here's the killer - although each adBooking can only have one valueId starting with 1, it can have multiple entries starting with 7. These bookings are rare, but they do exist and are causing anomalies in the data returned which - if you recall - must only contain booking records for which there are valueId entries with both a 1 and a 7.
Can anyone suggest a way I can get just the data I need?
Cheers,
Matt
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Nov 5, 1999
I'm trying to figure out why I am not getting any result set back from a search that includes non-alphanumeric
or non-printable characters. For instance, if I have a table with a 20 character name column with names with
beginning ranges from A-Z, why doesn't the following return any rows:
select * from table where name < CHAR(126).
In the ASCII character set, 126 is a tilde (~) which is numerically above the alphanumeric ranges 1-9,a-z, and
A-Z. Shouldn't all records that sort lower in the character range be included in the result set ?
I'm assuming this has something to do with the default collation sequence being used which somehow does
not include characters outside the alphanumeric range. Any ideas ?
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Oct 19, 2013
I'm fairly new in SQL. Been trying for months to create the right script for this particular case but still cannot give me 100% result as required.
SCENARIO :
I am required to query from 2 tables for those unique record that meets both conditions below:-
1. Status is 1 @ max (trans_id), paychnl = CC
2. Status is 2 @ max (trans_id), paychnl = A or B
FYR, 2 tables and respective columns to query are as below:-
table PTFF --> col ID, TRANS_ID,TRANSDATE,EFFDATE,TRANSCODE
table CHFF --> col STATUS,PAYCHNL
FYI, status refers to the paychnl method status:-
==> 1 means the current paychnl method
==> 2 means the previous paychnl method
paychnl method can be multiple because it will be defined as 2 for all the histories' paychnl chosen earlier, but 1 should only be unique as it is the latest paychnl chosen for each unique ID. however, it may appear more than once when it's taking those in earlier TRANSDATE, so here we would need the max trans_id as it will show the latest updated TRANSDATE.
Apart from that, I need only those most recent paychnl to be A or B and the latest paychnl is CC so, this been indicated by the same max trans_id for the same ID.
Aft trying so many times on this MAX command but failed to get any result, I only managed to come up to this part only. please refer below:-
table PTFF --> col ID, TRANS_ID,TRANSDATE,EFFDATE,TRANSCODE
table CHFF --> col STATUS,PAYCHNL
SELECT DISTINCT PTFF.TRANSCODE,PTFF.ID,PTFF.TRANS_ID,PTFF.TRANSDATE,PTFF.EFFDATE, CHFF.STATUS,CHFF.PAYCHNL
FROM DBO.PTFF PTFF
JOIN DBO.CHFF CHFF
ON CHFF.ID = PTFF.ID
WHERE
PTFF.TRANSDATE BETWEEN 130501 AND 130831
AND PTFF.TRANSCODE='T522'
AND (CHFF.STATUS=1 AND CHFF.PAYCHNL='CC' OR (CHFF.STATUS=2 AND (CHFF.PAYCHNL='A' OR CHFF.PAYCHNL='B')))
However, the script above returns :-
1. All those records with STATUS 1 regardless paychnl is A or B in most recent status 2,
2. Expected results also appear ==> 1 same ID with status 1 while paychnl=CC and status 2 while paychnl=A or B
3. Also duplicates of expected results but for different TRANSDATE and not at MAX TRANS_ID
Samples of the result:-
IDSTATUSTRANS_IDPAYCHNLTRANSDATEEFFDATETRANSCODE
51881712CC13082920130920T522
9361164CC13081620140813T522
78531153CC13082020130814T522
8949151CC13081220130801T522
8949251B13081220130801T522
19081455CC13051620131129T522
19082455A13051620131129T522
19081409CC11101920111129T522
19082409A11101920111129T522
19081404CC11092920111129T522
19082404B11092920111129T522
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Feb 13, 2008
I have an 'update' query that looks like this:
update wce_contact
set blank = 'missing'
where website in ('www.name1.co.uk','www.name2.co.uk','www.name3.co.uk')
I know this query will set 'blank' to missing when it matches the above websites. However if i wanted to set blank to 'missing' where mail1date is not null and mail2date is not null (keep going to mail18date not null) how exactly would i go about this?
I guess it would be a case of adding another bracket somewhere but im unsure?
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Jul 20, 2005
Hi All,Sorry if the subject line is too obscure -- I couldn't think of a wayof describing this request.I have a table that contains approximately 1 million records.I want to be able to be able to select the top x records out of thistable matching variable criteria.Pseudo table records:custid, category, segment1,1,12,1,13,1,14,1,15,1,26,1,27,1,28,1,29,2,110,2,111,2,112,2,113,2,214,2,215,2,216,2,217,2,318,2,319,2,320,2,3So, what I'm trying to do is return a recordset, for example, thatcontains the top 2 of each variation of category and segment.ie:1,1,12,1,15,1,26,1,29,2,110,2,113,2,214,2,217,2,318,2,3The only way I can think to achieve this is in a while statement,performing individual selects against each combination, feeding thewhere criteria by variables that I automatically increment.I can't help thinking there's a much more graceful way of achievingthis?If anyone can give me any insight into this I'd be incrediblyappreciative!Many thanks in advance!Much warmth,Murray
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Jul 20, 2005
When querying a bit field, I am encountering a problem with MS SQLServer returning a larger number of records for a table than theactual number of records that exist within that table.For example, my customer table has 1 million unique records, so theresults of the following query are as such:select count(customer_nbr) from customer = 1,000,000There is bit field in the customer table that denotes whether acustomer has placed an order with us called. That flag is calledorder_flagIf I run the following query:select count(customer_nbr) from customer where order_flag = 1The result is 3,000,000 records.There is no logical way that this is possible, as my table onlycontains 1,000,000 unique records and the number of customers with anorder should be a subset of this.If a run the above query with a distinct before customer number, I getthe results I want:select count(distinct customer_nbr) from customer where order_flag = 1600,000 records.So while I can get to the answer I want, I have no idea why I amreturning incorrect values if I don't select distinct.Can anyone help? I checked microsoft support and message boards buthaven't seen anything.I should note that the bit field is indexed.I am not sure if that isthe problem or not.
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Dec 2, 2005
Hi,
Need to remove the duplicated rows from a table which has text/ntext/image type columns. The table does not have any PK/Unique column. (I accept its a bad data model). But currently changing the data model is not possible. Hence doing changes in application.
I couldn't do 'SELECT DISTINCT * from table', since the table has text columns. Though there is no PK constraint, If I know that col1 and col2 are join PKs in the table, Is that possible to select the distinct rows from such a table.
Please advise,
Thanks,
MiraJ
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Apr 12, 2006
Hey guys, I have a table full of data that has duplicate records except for two date columns (date1 and date2). What I would like to do is remove the duplicates while retaining the most recent record, how can I do this?
So record 1 looks like this:
Code:
John | Smith | 08/08/2000 | 10/10/2000
Record 2 looks like this:
Code:
John | Smith | 08/10/2005 | 10/10/2005
I'd like to remove the first instance and keep the second (most recent one).
Ideas?
Thanks!
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May 10, 2004
Hello all,
A little question regarding SQL Server DB's.
I have a two tables containing customers invoices, one for the invoices header (ie: customer #, invoice date,... KEY: invoice # + invoice date) and another for the details of the invoices (ie: each invoice line details KEY: invoice # + line #). I need to periodically remove invoices older than a certain timeframe (ex: all invoices older than 48 months).
How can I proceed?
I am fairly new with SQL server.... Please help!
Thanks,
Eric
:(
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Mar 26, 2008
How do i eliminate records which has spaces
i tried with
select * from table
where col1 !='' or
col1 is not null
which doesn't work.. any help.
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Jul 17, 2006
Time Price Volume
090048 510 6749
090122 510 2101
090135 510 1000
090204 505 2840
090213 505 220
090222 505 1260
090232 505 850
090242 505 200
090253 510 1200
090313 510 570
090343 510 250
090353 510 160
Criteria
Retrieve records with independent price and its total volume per minute
SELECT SUBSTRING(st,1,4) AS Ttime,d_price AS Price,SUM(l_cum) AS Volume FROM cmd4
WHERE sd='20060717' AND serial='0455'
GROUP BY SUBSTRING(st,1,4),d_price,l_cum
Result of the above query: -
Time Price Volume
0900 510 6749
0901 510 1000
0901 510 2101
0902 505 200
0902 505 220
0902 505 850
0902 505 1260
0902 505 2840
0902 510 1200
0903 510 160
0903 510 250
0903 510 570
THE FOLLOWING RESULT STILL NOT A TOTAL FOR A MINUTE]
E.G
0901 510 1000
+
0901 510 2101
=
0901 510 3101 <- I NEED THIS
Can any one advice or give me tips over this. Please
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Jan 26, 2015
I ran this query to populate a field with random numbers but it keeps populating with some duplicate records. how I can remove the duplicates?
UPDATE APRFIL
SET ALTATH = CONVERT(int, RAND(CHECKSUM(NEWID())) * 10000);
Below are sample output that I need the dupes not show. The table already exist and its sql 2008
155957
155957
155968
155974
155976
15599
155990
155997
155997
156005
156008
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Aug 18, 2015
I wanted to remove duplicate records from SSRS report. I set the "Hide Duplicates" to True. It is now working, But i am getting the space between the two records, which i want to get rid of. How to get rid of extra spaces between two records ( Please find the details below).
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Jan 18, 2000
Is there a way to find duplicate records in a table using code. We have about 500,000 records in this table.
Thanks.
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Jan 27, 2005
Hi All,
How to check for the duplicate records in the table? Thanks.
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