Finding The Unique....
Aug 28, 2001hai
I have to delete a single row from a table , where there are multiple rows with the same data and i want to delete only one row and i cannot alter my table
structure.
Thanks in advance
satya
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Finding All Unique Combinations Of Values?
Mar 29, 2013how to find all possible combinations of values, for example:
My table includes:
Code:
CREATE TABLE temp1 (item varchar(50), ORDER int);
INSERT INTO temp1 (item, order) VALUES ('apple',1);
INSERT INTO temp1 (item, order) VALUES ('pear',2);
INSERT INTO temp1 (item, order) VALUES ('blueberry',3);
I need the output to be like this:
apple
pear
blueberry
apple, pear
apple, blueberry
pear, blueberry
apple, pear, blueberry
I don't need the reverse of each. For example, I need only 'apple, pear'... I don't need 'pear, apple'.
Finding UNIQUE Values In Only One Column
Jan 28, 2008I am using Access 2007 and I have 10 columns of data.
I am trying to select all the data from all 10 columns where the first column's data returns only the Unique values and the other columns return all the data from the row that is returned from the first column.
I have used this
SELECT DISTINCT [SFR Rates All].Sorter, [SFR Rates All].SProgram, [SFR Rates All].S_Price, [SFR Rates All].Min_Loan, [SFR Rates All].Max_Loan
FROM [SFR Rates All];
But that returns all the data in the table and all values in the Sorter column with duplicates because each row has distinct data.
I am trying to return unique values from [SFR Rates All].Sorter (the first column) and all the data from the other 9 columns that are contain the row with the unique value in Sorter.
I know that I am missing something basic but well, I can't figure it out.
Thanks
Bob
Finding Unique Field Names With Different Values
Jun 8, 2005I am in a situation where I need to find out unique field names with different values in a table having 200+ columns.
Let's say I have two rows with 200+ columns ( I exported these rows from Lotus Notes to SQL Server) I am not sure what columns makes unique of these rows. It's going to be tedious by checking each column values.
Is there anyway I can write a squl query on these two rows which outputs column names which are having unique values.
I would appreciate If anybody gives me hint about achieving desired result
Complex SQL Query - Finding A Unique Row By Lastdatemodified
Apr 14, 2008HI all,
I am having a bit of difficulty trying to work how to write a query. I am normally only used to doing SELECT, UPDATE and DELETE queries ... the simple ones.
However I have come across a query whereby things get a lot more complex.
My company has an employee table with a way to store data that I have not been used to.
EMPLID, NAME, DATELASTMODIFIED, EmployeeStatus. (There are lots more but N/A)
The problem that I have is that there can be more than one row for an employee id. Therefore I cannot uniquely identify an employee id. Instead what I have discovered I have to use is to find an employee with the last modified date higher than the other rows with the same employee id.
The query I am trying to achieve is:
Code:
Count all employees that have an employee status of 'Employed'.
(Therefore counting only one employee per id rather than counting the same employee more than once)
The trouble is, translating this into a SQL query. I have tried to have a go but don't know how to query:
Code:
SELECT COUNT (DISTINCT EmplId)[
FROM Employeetable AS e
WHERE e.LASTDATEMODIFIED <And Stuck>
AND EmployeeStatus = 'Employed'
So I thought hmm lets pseudo code this, but then I get stuck into compelixty:
Code:
SELECT * FROM EmployeeTable WHERE EmployeeStatus = 'Employed'
int counter = 0;
ForLoop (EmplId)
{
LastDate Date
if(LASTMODIFIEDDATE > LastDate)
{
LastDate = LASTMODIFIEDDATE
}
//How do I return the value? Do I count the value?
}
Has anyone come across this issue before? Can anyone help it quite fundemental to what I have to query so help on this is highly appreciative.
Finding Unique Values From Associative Table
Apr 15, 2015I have a table which maps two related IDs. That table has 3 columns: ID, BHID & EPID. I need to find all of the BHIDs where the EPID is unique. It seems easy enough, but I keep going in circles..
USE [CGB]
GO
/****** Object: Table [dbo].[ePID_BHID] Script Date: 04/15/2015 15:48:14 ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
[code]....
Transact SQL :: Finding Unique Counts Based On Consecutive Days?
Jul 9, 2015I have a scenario here where the data looks like -
ID Date
100 07/01
100 07/02
100 07/03
100 08/01
100 08/02
100 08/15
Now I need to find out unique occurrences of ID - 100 ( where count = unique only if the occurrences are in consecutive days, gap of even 1 day causes it to be a different instance ) - SO with the above data I should have unique occurrences as 3.efficient way to calculate this ?
SQL Server 2012 :: Failing On Update With Unique Index Error (Not Unique)
Jul 5, 2015This index is not unique
ix_report_history_creative_id
Msg 2601, Level 14, State 1, Procedure DFP_report_load, Line 161
Cannot insert duplicate key row in object 'dbo.DFP_Reports_History' with unique index 'ix_report_history_creative_id'.
The duplicate key value is (40736326382, 1, 2015-07-03, 67618862, 355324).
Msg 3621, Level 0, State 0, Procedure DFP_report_load, Line 161
The statement has been terminated.
Exception in Task: Cannot insert duplicate key row in object 'dbo.DFP_Reports_History' with unique index 'ix_report_history_creative_id'. The duplicate key value is (40736326382, 1, 2015-07-03, 67618862, 355324).
The statement has been terminated.
What Is The Difference Between A UNIQUE INDEX And A UNIQUE CONSTRAINT?
Sep 22, 2004A UNIQUE INDEX must inherently impose a unique constraint and a UNIQUE CONSTRAINT is most likely implemented via a UNIQUE INDEX. So what is the difference? When you create in Enterprise Manager you must select one or the other.
View 8 Replies View RelatedUnique Constraint Vs Unique Index In MS SQL 2000
Jul 20, 2005HelloWhat should I use for better perfomance sinceunique constraint always use index ?ThanksKamil
View 5 Replies View RelatedUnique Constraint And Unique Index, What's The Difference?
Jun 24, 2006What's the difference in the effect of the followings:
CREATE UNIQUE NONCLUSTERED INDEX
and
ALTER TABLE dbo.titles ADD CONSTRAINT
titleind UNIQUE NONCLUSTERED
I found there're two settings in Indexs/Keys dialog box of the management studio, Is Unique, and Type. The DDL statements above are generated by setting Is Unique to yes plus Type to Index, and just Type to Unique Key, respectively. What's the difference between them?
Unique Index Vs Unique Constraint
Mar 7, 2001Hi everyone,
I need urgent help to resolve this issue...
As far as the performance goes which one is better..
Unique Index(col1, col2) OR Unique constraint(col1, col2) ?
Unique constraint automatically adds a unique index
and unique index takes care of uniqueness then whats the use of unique constraint ?
Which one do one use ?
thanks
sonali
Unique Constraint Vs Unique Index
Jan 20, 2006BOL says a unique constraint is preferred over a unique index. It also states that a unique constraint creates a unique index. What then is the difference between the two, and why is a constraint preferred over the index?
View 2 Replies View RelatedUnique Index Vs Unique Constraints
Mar 26, 2008
hi team,
.Can i create umique constraint with out unique index.when i am creating a unique constraint sql creates a unique index (default) can i have only unique constraint ?
How To Select Unique Row When Entire Row Not Unique?
Mar 12, 2008I am having a problem trying to figure out the best way to get the results I need. I have a table of part numbers that is joined with a table of notes. The table of notes is specific to the part number and user. A row in the notes table is only created if the user has entered notes on that part number. I need to create a search that grabs all matches on a keyword and returns the records. The problem is that it currently returns a row from the parts table with no notes and a separate row with the notes included if they had created an entry. It seems like this should be easy but it eludes me today.
Here is the code
Code Snippet
create procedure SearchPartKeyword
(
@Keyword varchar(250) = null,
@Universal_Id varchar(10) = null
)
as
select p.PartNumber, p.Description, p.ServiceOrderable, n.MyNotes, p.LargestAssembly, p.DMM,
p.Legacy, p.Folder, p.Printer
from Parts p inner join notes n on p.PartNumber = n.Identifier
where n.Universal_ID = @Universal_ID and p.Description like @Keyword
union
select p.PartNumber, p.Description, p.ServiceOrderable, '' as MyNotes, p.LargestAssembly,
p.DMM, p.Legacy, p.Folder, p.Printer
from Parts p
where p.Description like @Keyword
and the results:
PartNo Description SO Notes LA DMM Legacy Folder Printer
de90008 MAIN BOARD 1 DGF1 114688 0 0 0
de90008 MAIN BOARD 1 I love this part Really I do DGF1 114688 0 0 0
This could return multiple part numbers and If they have entered notes I want the row with the notes
Thank You
Dominic Mancl
What 's Difference Between Unique Key And Unique Index
Nov 13, 2007What 's difference between Unique key and unique index in SQL server 2005?
View 9 Replies View RelatedA Unique Unique Constraint
May 1, 2008Here is the table I created:
create table Test (
[recId] [int] identity(1, 1) not null,
[code] [varchar](50) not null,
[prime] [bit] not null constraint [DF_Test_prime] default (cast(0 as bit)),
constraint [PK_Test] primary key clustered
(
[recId]
) with fillfactor = 90 on [primary]
) on [primary]
go
insert into Test (code, prime) values ('AVA', cast(1 as bit))
insert into Test (code, prime) values ('BUS', cast(1 as bit))
insert into Test (code, prime) values ('BUS', cast(0 as bit))
insert into Test (code, prime) values ('BUS', cast(0 as bit))
insert into Test (code, prime) values ('CAR', cast(1 as bit))
insert into Test (code, prime) values ('CAR', cast(0 as bit))
insert into Test (code, prime) values ('RLW', cast(1 as bit))
insert into Test (code, prime) values ('RLW', cast(0 as bit))
insert into Test (code, prime) values ('RLW', cast(0 as bit))
select *
from Test
I need to create a constraint on this table that will not allow me to have two rows that are prime for the same code. So the following insert statement should fail:
-- This should fail
insert into Test (code, prime) values ('RLW', cast(1 as bit))
Thanks for you help!
Regards,
Anand
Finding Something In SQL
Jun 22, 2007Hello,
I am very new to SQL and I have an issue. We have a website that has pictures on the site. We want to take them down but the pictures are somehow tied into the database, they aren't on any of the servers. How can I find these pictures that seem to be somehow hard coded into the database?
Any help would be greatly appreciated.
Finding Right Row
Mar 11, 2008i have
create table test
(id_text int
,text_name varchar(10)
,id_author int)
insert into test (id_text, text_name, id_author) values (205, 'name1', 123)
insert into test (id_text, text_name, id_author) values (205, 'name2', 124)
insert into test (id_text, text_name, id_author) values (205, 'name2', 125)
insert into test (id_text, text_name, id_author) values (206, 'name2', 124)
insert into test (id_text, text_name, id_author) values (207, 'name2', 122)
insert into test (id_text, text_name, id_author) values (207, 'name2', 128)
select id_text, id_author from test
and i need to get out only id_text with the first author.
any solutions for sql server 2000?
thank you
Finding The Max Value
Aug 16, 2006I have a report that is grouped by week. The details of the week have the date, time interval (half hour), and the maximum value for that day. So in the example below I am showing the week of May 21st. Then I have all of the days of that week, sorted by date as requested, with the halfhour the maximum value occured in on that day. So Monday the 22nd has the maximum value for the week at 254 (and is highlighted in red). Where the ????? are below, I need to display '1400' which is the interval, but have not yet been able to figure out how to do this.
I tried the following expression:
=iif(max(Fields!MaxValue.Value) = Fields!MaxValue.Value, Fields!Interva.Value, "X")
but this only works if the first day is the maximum value.
5/21/2006
?????
254
Sun, 5/21/2006
1000
147
Mon, 5/22/2006
1400
254
Tue, 5/23/2006
1830
141
Wed, 5/24/2006
1830
107
Thu, 5/25/2006
0830
210
Fri, 5/26/2006
1900
36
Sat, 5/27/2006
1000
149
Any ideas are greatly appreciated!
Finding The Next Record
Apr 26, 2007I have, say 4 rows for 1 client I want to find the date difference between two(or more) of the rows when the first has a true flag and the next does not
Row1 Date1,falseRow2 Date2,trueRow3 Date3,falseRow4 Date4,false
so I want to find the difference between Row2 Date2 and Row3 Date4I know I can loop through the rows but with 000's of clients each with x numbers of rows this will surely be very slow
Finding Data
Feb 2, 2008I have a form where users can enter an appointment on this form some personal details are entered. I want the users to be able to write in a textbox the users surname. they will then press a button next to the textbox that will bring up a smaller screen displaying that users details :
SELECT * FROM Members where surname = (textbox1)
Alternatively the users can click the button and bring up a screen where the users can put the surname into a textbox and then bring up the users details this way.
I am not sure how to do this or how to select from the database where a field in the database is the same as the information put in to a text.
Is this possible? Thanks in advance Mike
Finding SQL Triggers
Feb 29, 2008I have a table TEST.
I want to find the triggers which use this table test.
For example: If there is a table A, and a insert in A causes a trigger to insert data in TEST,
I want to find this particular trigger.
Any ideas?
I am using SQL server 2000
thank you
Finding Duplicates In SQL
Jul 26, 2002I have a customer database with the following structure:
Dept ID (int)
Section (varchar)
I need to find only occurrences of a section (eg Admin) where the section name has a record in Dept 1,2 and 3 - only return the result if the record for Admin is associated will these depts.
Example Data:
Dept Section
1 Admin
1 Finance
1 Marketing
2 Admin
2 Sales
2 Marketing
3 Admin
3 Sales
3 Finance
The query would only return 'Admin' since this is the only Section that is represented in Departments 1,2 + 3.
I am not in control of the data design and can't create a bitwise field to achieve this.
tia,
Steve
Finding Suid
Oct 18, 1999How can I find out a user's suid or login name from within a stored procedure?
View 1 Replies View RelatedFinding The First Distinct Value
Sep 8, 2004Hi
My problem is a little tricky. I am trying to get the first distinct row(s) from a table where one column will have only a few differences, while a second is unique.
Now using "distinct" doesnt help as even though distinct(column1) may return only a few rows, because the next column is unique you will still have all rows returned.
How do I return only 1 row per distinct(column1) and drop the rest? What makes this so annoying is that all columns need to be returned, but only in accordance to distinct(column1)
Finding Relationships
Sep 23, 2005Hi, sorry if this comes across as a stupid question, but i'm new to SQL. I have had a look on Google and on these forums but not found the answer..
I am running MS SQL 7 with a database containing around 130 tables.. i want to know if there is a query/command that i can type that will look through all the tables and tell me which ones reference a specified table (through it's key). Hope this makes sense! i've looked at some of the stored procedures but not found any that give me anything useful.
EDIT: Just so you are aware, i did not create this database, hence why i am not aware of the relationships myself, i have only just started working on it.
Thanks
Steve
Finding The Numbers
Jul 8, 2005I have a column of data of type varchar. it contains a mix of text id's and numeric id's.
all i want is the highest purely numeric value
The closest i can get is to use a regex expression, but it don;t work and i just know there is a better way of doing it.
SELECT * FROM customers WHERE custref LIKE 'd*d';
I am using MS SQL 7
thanks so much for any help
Finding The Table Name.
Dec 15, 2006I have a script that creates these spin off tables (used for lightning fast access) on a near daily basis. But it is possible the table does not exist for that day - in which the script need to check one day back - so on and so forth until finding the most recently created table.
The script I have written fails with overflow error.
I was hoping someone could tell me the correct syntax to accomplish this and also why i recieve this overflow error...
Code:
Dim str_SQL_Asset_1
daysBack = 1
tblFound = FALSE
Dim xbl_Holdings_date
Dim xMonth
Dim xDay
xbl_Holdings_date = date()
If Len(Month(xbl_Holdings_date))=1 Then
xMonth = "0" & Month(xbl_Holdings_date)
Else
xMonth = Month(xbl_Holdings_date)
End If
If Len(Day(xbl_Holdings_date))=1 Then
xDay = "0" & Day(xbl_Holdings_date)
Else
xDay = Day(xbl_Holdings_date)
End If
DO WHILE tblFound = FALSE
xbl_Holdings_Name = "xbl_Holdings_" & Year(xbl_Holdings_date) & "_" & xMonth & "_" & xDay
SQL_tblCheck_STR = "SELECT * FROM INFORMATION_SCHEMA.TABLES " & _
"WHERE table_name = '" & xbl_Holdings_Name & "' "
Set MM_checkCmd = Server.CreateObject("ADODB.Recordset")
MM_checkCmd.ActiveConnection = conn_str_ClientDB
MM_checkCmd.Source = SQL_tblCheck_STR
MM_checkCmd.CursorType = 0
MM_checkCmd.CursorLocation = 2
MM_checkCmd.LockType = 3
MM_checkCmd.Open()
IF MM_checkCmd.EOF Then
xbl_Holdings_date = (xbl_Holdings_date - daysBack)
daysBack = daysBack + 1
tblFound = FALSE
ELSE
tblFound = TRUE
MM_checkCmd.CLOSE()
SET MM_checkCmd = Nothing
END IF
loop
The goal of this snippet is simply to identify and set the value for the existing table name.
An example table name would be "xbl_Holdings_2006_12_10".
I could have posted this question in the VB forum but I would like to push as much of the work onto SQL as possible and also - this sort of operation is more likely to be required of a dba imo.
Finding Duplicates
Jul 7, 2004I am trying to complete an insert from query but the problem is I have duplicates, so I'm getting an error message. So to correct it I am creating a Find Duplicates statement in the Query analyzer but Its not working can someone tell me whats wrong with this statement (by the way I'm in SQL 2000 Server)
thank you
SELECT EmployeeGamingLicense [TM#]AS [TM# Field], Count([TM#])AS NumberOfDups
FROM TERMINATION
GROUP BY [TM#]
HAVING Count([TM#])>1;
GO
Finding Row Size
Oct 7, 2004Hi,
Anyone got any ideas how to calculate the occupied row size of a table?
Help Finding The Max Total
Dec 3, 2004Hi,
I have the following code
SELECT
PR.WBS2,
SUM(CASE WHEN LedgerAR.Period = '200408' AND LedgerAR.TransType <> 'CR'
THEN Ledgerar.amount * - 1
ELSE '0' END) AS BillExt
FROM PR
LEFT JOIN Ledgerar ON PR.WBS1 = Ledgerar.WBS1 AND
PR.WBS2 = Ledgerar.WBS2 AND PR.WBS3 = Ledgerar.WBS3
WHERE PR.WBS2 <> '98' AND pr.wbs2 <> '9001'
AND pr.wbs2 <> 'zzz' AND pr.wbs3 <> 'zzz' AND
pr.wbs1 = '001-298'
GROUP BY PR.WBS2
It prints out:
Wbs2 BillExt
0141 0
0143 0
1217 20580
I want the code to return the wbs2 code '1217' because it has the highest amount in BillExt '20580'.
Can someone help me with this?
Thanks.
laura
Finding Last Entries
Jan 27, 2005Hi, I am searching for the most easy SQL solution:
Lets say i have 500000 rows of cars in one table with 30000 different car ID's.
This table contains no keys, no date values, but I need the last row of these 30000 different cars. How do I get them without adapting table structure and without using cursors ?
Thx for reply.
dajm