Transact SQL :: Removing Duplicate Values In ID Column Of Table
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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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 1, 2015
My data is like below:
ClassId ClassName StudentId Subject SubjectId
1 ESL 12 English 20
1 ESL 13 Science 30
1 ESL 12 Social 40
1 ESL 12 Maths 50
Required output: parameters are Subject column values
ClassId ClassName TotalStudents SubjectIds
1 ESL 1 20, 40, 50
1 ESL 1 30
When one student takes multiple subjects then count student only once, so in the above data 12 is one student id takes multiple subjects so counted only once. TotalStudents value is 1
I did write below query:
Declare @subjectids string
set @subjectids = '20,30,40,50'
-- will split @subjectids and store in temp table
select classname, classid, Count(Distinct StudentId)
from mytable
where SubjectsIds in @subjectIds
group by ClassId, ClassName, SubjectId,
but it gives me below output:
ClassId ClassName TotalStudents SubjectIds
1 ESL 1 20
1 ESL 1 30
1 ESL 1 40
1 ESL 1 50
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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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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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Aug 21, 2015
I have 3 variables that gets comma separated values. My requirement is to get them into a temporary table with 3 columns and each column should have single value. E.g. if
Declare @SID varchar(max),@CID VARCHAR(MAX),@KID VARCHAR(MAX)
Set @SID='1,2,3,4'
Set @CID='6,7,8,9'
Set @KID='A,BB,CCC,DDDD'
--Now my requirement is to get them in a temp table with 3 column and different rows as per comma separated values in variables.
Now my requirement is to get them in a temp table with 3 columns and different rows (as per number of comma separated values in variables) E.g.
16A
27BB
38CCC
49DDDD
How i can use them for joining with other tables.
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Oct 27, 2015
I'm trying to Update a column table based on values from another table but I need these values are random.My query looks like this and doesn´t work
DECLARE @Rowini int,
DECLARE @lastrow int
SET @Rowini = 1
SET @Lastrow = 80000
[code]...
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Jul 18, 2015
I am trying to insert different number of columns into variables. This is what it does If I use a static columns.
declare @AccountType nvarchar(10)
declare @Total numerical(15,2)
declare @1 numerical (15,2)
declare @2 numerical (15,2)
declare @3 numerical (15,2)
#MonthtoDate temp table is created using a dynamic pivot query.
Data looks like this :
Account Type 1 2
3 Total
Type 1 3
0 4 7
Type 2 5
7 1 13
Select @AccountType = AcctType , @Total = MonthToDate, @1 = [1], @2 = [2], @3 = [3] from #MonthtoDate
However the issue is with [1],[2],[3] columns. Those are the number of days of the month. If today is the 3rd day of the month, we only need to show 3 days. So the final table has column [1],[2],[3] and @AccountType and @Total .
We want to run this query everyday to get the moth to date values.If we run this tomorrow, it will have 4 date columns [1], [2],[3],[4] and @AccountType and @Total .
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Sep 15, 2015
I have two tables (i.e. Table1 and Table2).
SELECT
* FROM [dbo].[Table1]
Date
id
9/15/2015
[code]...
Table2 has three columns (i.e. Date, Count and Rule Type). Column “Rule Type “has a default value which is “XYZ”..Now I want to insert Data from Table1 to Table2. I am using following query:-
declare @Startdate
datetime
DEclare @enddate
datetime
[code]...
Column name or number of supplied values does not match table definition.I am using SQL 2012. I understand Table1 has 2 Columns but Table2 has 3 Columns. Is there anyway, I can move data from source table to Destination table where Destination Table has more number of Columns?
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May 9, 2000
We have a table with 1 million rows with duplicates in a column which allows nulls.Can we enforce uniqueness for only future inserts by anyway(ignoring the old ones)?
Thanks!
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Jul 19, 2007
Is there a setting in SQL Server that ensures a column is not allowed to have the same value more than once? Or must this be set up in the insert statment itself? Or how about a business rule?
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May 14, 2015
declare @error int, @rowcount int
select @rowcount = COUNT(1) FROM STG_BCDR;
while @rowcount > 0
begin
BEGIN TRAN Deletion
[code]....
Above code i try to delete records batch by batch to avoid table locking at BCDR table.total records in this BCDR table is 40,000 records. However I run the code at execution plan, the BCDR table still clustered index scan which means that the locking still happend.
If i change the delete top (5000)...... to delete top (5).... then thre is clustered index seek, which is good..The problem here is each time only delete top 5 records which is means it will realy take very long time to remove those data.
how to cater the situation inorder for me to delete those huge data without table locking happend. If table locking happend , then other user will not be able to access this table at the same time.
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Oct 14, 2014
With the data example below I am trying to consolidate the duplicate rows by flattening the dealer and billcode, or putting those values in each of the columns instead of creating separate rows...
74 MARTHA PATNE RIPLEY 1 23,327,76 ROTTINGDAM AAC SPRINGFIELD 3052 USA MPATRIP@AMERICANALARM.COM,MPATRIP@COMCAST.NET,PRIPLEY@ONECOMMUNICATIONS.COM
[table]
arnumbercustomernamedealerbillcodeaddl_addraddr1addr2branchcityzipcodecountryemaildefaultEmail
39SUSAN THALKER 2271BOTTOMWOOD RDAACHAMMOND02180-2703USASUWS3@COMCAST.NET1
56ANN REBELLO 123SHERIDAN AVEAACMEDFORD2155USANULLNULL
58DARRELL/PATTI SANDERS 6020DOTY AVENUEAACDANVERS1923USANULLNULL
74MARTHA PATNE RIPLEY 123ROTTINGDAM DRAACSPRINGFIELD3052USAMPATRIP@AMERICANALARM.COM1
74MARTHA PATNE RIPLEY 1327ROTTINGDAM DRAACSPRINGFIELD3052USAMPATRIP@COMCAST.NET1
74MARTHA PATNE RIPLEY 176ROTTINGDAM DRAACSPRINGFIELD3052USAPRIPLEY@ONECOMMUNICATIONS.COM1
[/table]
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Jul 28, 2015
I have a requirement where i want to delete the records based on the Date column. I have table which contain the columns like machinename ,lasthardwarescandate
I want to delete the records based on the max(Lasthardwarescandate) i.e. latest one, column where the machine name is duplicate menace it repeats. So how would i remove the duplicate machine names based on the Lasthardwarescandate column(There are multiple entries for the Lasthardwarescandate so i want to fetch the latest date column).
Note: Duplication should be removed based on “Last Hardware Scan” date.
Only latest date should be considered from multiple records for the same system. "
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Apr 26, 2015
I have two tables A(uname,address,full_name) and B(uname,full_name). I want to update table A for all matching case of uname in table B.
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May 21, 2015
Inside of stored procedure you have the code
create table #datatable (id int,
name varchar(100),
email varchar(10),
phone varchar(10),
cellphone varchar(10),
none varchar(10)
);
insert into #datatable
exec ('select *
from datatable
where id = 1')
select * from #datatable
I still want to retrieve the data and present it in the software's presentation layer but I still want to remove the temp table in order to reduce performance issue etc.
If I paste the code DROP
TABLE #datatable after
insert into #datatable
exec ('select *
from datatable
where id = 1')
Does it gonna work to present the data in the presentation layer after removing the temp table?
The goal is to retrieve the data from a stored procedure and present it in the software's presentation layer and I still need to remove the temptable after using it because I will use the SP many time in production phase.
[URL]
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Jul 9, 2015
I have a table with 2 columns and my source data looks like this..
PolicyNum InsCode
1ABC12 1001
1ABC12 1002
1ABC12 1003
1ABC12 1004
1ABC12 1005
[Code] ....
My output should look like this..I need T-sql to get below output.
PolicyNum InsCode1 InsCode2
1ABC12 1001 1005
1ABC12 1002 1006
1ABC12 1003 1004
1ABC20 1001 1005
[Code] ...
Basically it's converting certain row values to new column. Every PloicyNum will have 1001 to 1006 Fixed InsCode values as a group.
Rule-1: InsCode value 1001 should always mapped to 1005
InsCode value 1002 should always mapped to 1006
InsCode value 1003 should always mapped to 1004
Rule-2: For a policyNum, If any Inscode value is missed from the group values 1001 to 1006, still need to mapped with corresponding values as shown in Rule-1
In the above sample data..
for PolicyNum - 1ABC20 , group values 1003,1006 are missing
for PolicyNum - 1ABC25 , group values 1002,1003,1004,1005,1006 are missing
Create Table sampleDate (PolicyNum varchar(10) not null, InsCode Varchar(4) not null)
Insert into Sample Date(PolicyNum, InsCode) Values ('1ABC12','1001')
Insert into Sample Date(PolicyNum, InsCode) Values ('1ABC12','1002')
Insert into Sample Date(PolicyNum, InsCode) Values ('1ABC12','1003')
[Code] ....
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Nov 15, 2011
I have 2 excel tables files.One table has info about sales by country, by model, by date...and the other table has units by date.Obviously, the common key is "date"....and by creating a relationship, I can add "units" to my combined resulting table.However, I can't create the relationship. Excel keeps telling me: "the relationship cannot be created because each column contains duplicate values. Select at least one column that contains only unique values".
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Aug 3, 2015
How can I calculate a DateTime column by merging values from a Date column and only the time part of a DateTime column?
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Jun 11, 2015
Someone ran an update statement multiple times so their are multiple entries in the table. What is the quickest way to track down the multiple entries? I would only want to see where timein and timeoff exist in the table multiple times for the same id. So this would be a duplicate
EntryID -- ID -- timein -- timeoff
1487 11 2015-05-05 16:33:23 2015-05-05 18:45:26
1623 11 2015-05-05 16:33:23 2015-05-05 18:45:26
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Jun 2, 2015
I have student table where duplicate student exist by name with there fathers name and mothers name. I need to search those duplicate records. I do not need ti count them but If there is 5 same student with name then the query will show 5 name then I will delete individually. Below I am trying to show the scenario.
Student_name
_____________
Rocky
Albert
Rocky
Williams
Albert
Robert
The query will show
Student_name
______________
Rocky
Rocky
Albert
Albert
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Jul 21, 2015
I have a table with more than 1000 records. The columns look like this
Import id | Reference | Date | Username | Filename
Some of the rows are duplicates except for the fact that they have different values for the first column alone (import id)
11111 test 21-07-2015 xxxxxx yyyyyy
22222 test 21-07-2015 xxxxxx yyyyyy
Is it possible to delete these kind of duplicate rows by ignoring the import id ?
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May 14, 2015
i am having three tables
test
testId testName totalQuestion
Questions
QuestionId fktestId QuestionName
Now i am trying to insert a duplicate copy test by passing testId..Here is my sp
if not EXISTS(SELECT testName from tblTest WHERE UPPER(@testName) = UPPER(@testName))
BEGIN
INSERT INTO tblTest SELECT @userId, testName,duration,totalQuestion,termsCondition,0,GETUTCDATE(),GETUTCDATE() from tblTest WHERE id=@testId
SET @insertedTestId=@@identity
INSERT INTO tblTestQuestion SELECT @insertedTestId,question,0,GETUTCDATE(),GETUTCDATE() from tblTestQuestion WHERE testId=@testId
END
how to insert in answer table as one question can be multiple answers.
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Mar 12, 2012
I have a table and one of the column have junk characters in it, how can I remove the junk characters?.
Eg : Employee
Eid Ename
1 a�
2 �ddd
how can i remove Junk characters and get only Enames from above table.
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Aug 21, 2014
I need an SQL statement that will hide a field in a column without removing it from the table.
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Feb 28, 2008
Hi i have a junction table(UserGroups) which is linking my "users" table with my "groups" table, however when the information is coming back in the format below, instead i want the group names to appear in only one field, instead of repeating the same data, could someone please tell me what i need to change.
UserName: Edwin CarolsUserAge: 28JobTitle: ManagerGroupName: MUFC
UserName: Edwin CarolsUserAge: 28JobTitle: ManagerGroupName: AFC
Below is my SQL statement;
SELECT Users.UserName,Users.UserAge, Users.JobTitle, Groups.GroupName FROM Users INNER JOIN UserGroups ON Users.UserID = UserGroups.UserID INNER JOIN Groups ON UserGroups.GroupID = Groups.GroupID WHERE (Users.UserID = '5')
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Mar 1, 2008
Hi i have a junction table(UserGroups) which is linking my "users" table with my "groups" table, however when the information is coming back in the format below, instead i want the group names to appear in only one field, instead of repeating the same data, could someone please tell me what i need to change.
UserName: Edwin Carols
UserAge: 28
JobTitle: Manager
GroupName: MUFC
UserName: Edwin Carols
UserAge: 28
JobTitle: Manager
GroupName: AFC
Below is my SQL statement;
Code:
SELECT Users.UserName,Users.UserAge, Users.JobTitle, Groups.GroupName FROM Users INNER JOIN UserGroups ON Users.UserID = UserGroups.UserID INNER JOIN Groups ON UserGroups.GroupID = Groups.GroupID WHERE (Users.UserID = '5')
And my table structure is like;
Users; UserID, UserName, UserAge
Groups; GroupID, GroupName
UserGroups; UserGroupID, UserID, GroupID
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Nov 15, 2015
I have this table:
id | Name | Age
==================
1 | AAA | 22
1 | AAA | 22
2 | BBB | 33
2 | BBB | 33
2 | BBB | 33
3 | CCC | 44
4 | DDD | 55
I need to delete from this table all the duplicate records and leave only one record. The table will looks like this:
id | Name | Age
==================
1 | AAA | 22
2 | BBB | 33
3 | CCC | 44
4 | DDD | 55
I work with sqlCE for Mobile...
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Jul 29, 2015
I've look at several different methods for removing leading zero's from a column but I need to remove trailing data from a VARCHAR column. For some reason, the old database saved the time along side the date in my client's app.
For example:
The old database format "2015-07-28 00:00:00"
I need the data in this column in the new database to only be the date "2015-07-28", there are alot of rows with this issue.
Is there a query I can run to remove the 00-00-00 from all of the rows? Some of the fields actually have a time in there like this: 2015-07-28 12:15:35, with this one, I don't think it's going to be easy but if I could at least remove the 00-00-00 from all the rows that have it, that would be a good start.
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Jun 30, 2015
I have a temp table with the following columns and data
drop table #temp
create table #temp (id int,DLR_ID int,KPI_ID int,Brnd_ID int)
insert into #temp values (1,2343,34,2)
insert into #temp values (2,2343,34,2)
insert into #temp values (3,2343,34,2)
[Code]....
I use the rank function on that table and get the following results
select rank() over (order by DLR_ID,KPI_ID,BRND_ID ) Rown,* from #temp
I am interested only in Rown and Id columns. For each Rown number, I need to get the min(ID) in the second column and the duplicate ID should be in 3rd column as shown below.If i have 3 duplicate IDs , I should have 3 rows with 2nd column being the min(id) and 3rd column having one of the duplicate ids in ascending order(as shown in Rown=6)
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Jun 28, 2015
The following stored procedure works well as far as it goes but I need to amend it.
@AE decimal (18,2) outputAS
BEGIN
-- SET NOCOUNT ON added to prevent extra result sets from
-- interfering with SELECT statements.
SET NOCOUNT ON;
-- Insert statements for procedure here
declare@odds decimal (18,2)
(SELECT @odds= sum
(1/ (RacingMaster.RM_SP) )
FROM RacingMaster
where RM_Draw='1')
[Code] .....
The column RM_Draw holds integer values from 1 through to 20. provide a way so that when the procedure has produced a result based on RM_Draw='1'' it will produce a separate result for RM_Draw=2 and so all the way to 20 so that the resultant figures can be outputted to my vb.net app.
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Nov 16, 2015
I have table with column having values 1,2,3,5,6,10.
I want to get the missing values in that column between 1 and 10 i.e., min and max... using sql query.
I want to get the values 4,7,8,9.
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Nov 2, 2015
I have the following result query :
Which is produce by following SP :
SELECT
P.StoreID,
P.InventoryDate,
P.ProductID,
SUM(PIT.Quantity * P.ItemUnitWeight) AS TotalWeight,
SUM(PIT.UsedQuantity * P.ItemUnitWeight) AS UsedWeight,
[code]....
What is the way to add a calculated columned Named "Stocked" which will represent the sum of "Remaining" column for each rows ?
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