Finding The First Distinct Value
Sep 8, 2004
Hi
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)
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Jul 6, 2007
Hi, I have the following script segment which is failing:
CREATE TABLE #LatLong (Latitude DECIMAL, Longitude DECIMAL, PRIMARY KEY (Latitude, Longitude))
INSERT INTO #LatLong SELECT DISTINCT Latitude, Longitude FROM RGCcache
When I run it I get the following error: "Violation of PRIMARY KEY constraint 'PK__#LatLong__________7CE3D9D4'. Cannot insert duplicate key in object 'dbo.#LatLong'."
Im not sure how this is failing as when I try creating another table with 2 decimal columns and repeated values, select distinct only returns distinct pairs of values.
The failure may be related to the fact that RGCcache has about 10 million rows, but I can't see why.
Any ideas?
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Mar 12, 2007
I need to run a SELECT DISTINCT query acrossmultiple fields, but I need to add another field that is NON-DISTINCTto my record set.Here is my query:SELECT DISTINCT lastname, firstname, middleinitial, address1,address2, city, state, zip, age, genderFROM gpresultsWHERE age>='18' and serviceline not in ('4TH','4E','4W')and financialclass not in ('Z','X') and age not in('1','2','3','4','5','6','7','8','9','0')and (CAST (ADMITDATE AS DATETIME) >= DATEDIFF(day, 60, GETDATE()))ORDER BY zipThis query runs perfect. No problems whatsoever. However, I need toalso include another field called "admitdate" that should be treatedas NON-DISTINCT. How do I add this in to the query?I've tried this but doesn't work:SELECT admitdateFROM (SELECT DISTINCT lastname, firstname, middleinitial, address1,address2, city, state, zip, age, gender from gpresults)WHERE age>='18' and serviceline not in ('4TH','4E','4W')and financialclass not in ('Z','X') and age not in('1','2','3','4','5','6','7','8','9','0')and (CAST (ADMITDATE AS DATETIME) >= DATEDIFF(day, 60, GETDATE()))ORDER BY zipThis has to be simple but I do not know the syntax to accomplishthis.Thanks
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May 8, 2006
Hello,
I have written a small asp.net application, which keeps record of the proposals coming from the branch offices of a bank in a tableCREATEd as a TABLE Proposals ( ID smallint identity(7,1), BranchID char(5), Proposal_Date datetime )
This app also calculates the total number of proposals coming from a specific branch in a given date bySELECTing COUNT(BranchID) FROM Proposals WHERE BranchID=@prmBranchID AND Proposal_Date=@prmDateand prints them in a table (my target table).
This target table has as many rows as the result of the "SELECT COUNT( DISTINCT Proposal_Date ) FROM Proposals"and excluding the first column which displays those DISTINCT Proposal_Dates, it also has as many columns as the result of the"SELECT DISTINCT BranchID FROM Proposals". This target table converts the DateTime values ToShortDateString so that we are able to see comfortably which branch office has sent how many proposals in a given day.
So far so good, and everything works fine except one thing:
Certain DateTime values in the Proposals table which are of the same day but of different hours (for ex: 11.11.2005 08:30:45 and11.11.2005 10:45:30) cause some trouble in the target table, where "SELECT COUNT( DISTINCT Proposal_Date ) FROM Proposals" is executed, because (as you might already guess) it displays two identical dates in ShortDateString form, and this doesn't make much sense (i.e. it causes redundant rows)
What I need to do is to get a result like (in a neat fashion :)
"SELECT COUNT( DISTINCT Proposal_Date ) <<DISTINCT ONLY IN THE DAYS AND NOT IN HOURS OR MINUTES OR SECONDS>> FROM Proposals"
So, how to do it in a suitable way?
Thanks in advance.
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Mar 29, 2007
suppose i have aDataset with 11 rows. field1 with 5 rows of aaa, 6 rows of "bbb"
I want's some thing like
field1 rowcount
aaa 5
bbb 6
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Jan 9, 2015
Okay, I've been working on this for a couple of hours with no success. I'm trying to find the number of telephone numbers that are associated with multiple students at different school sites. I've created a temp table that lists all phone numbers that are associated with more than one student. I'm now trying to query that table and count the number of telephone numbers that are associated with more than one site. Essentially, I'm looking for parent/guardians that have students at different sites.
Here's an example of what I'm hoping to accomplish:
*In this example, I'm just trying to get a count of the different/distinct school sites associated with each number. If I can, at the same time, limit it to a count of > 1 (essentially excluding parents with students at the same site), even better :)
===================================
Temp table
===================================
SCHOOL | STU_ID | STU_PHONE
101 | 12345 | 111-222-3333
101 | 23456 | 111-222-3333
102 | 34567 | 111-222-3333
101 | 45678 | 999-888-7777
101 | 56789 | 999-888-7777
101 | 67890 | 555-555-5555
102 | 78901 | 555-555-5555
103 | 89012 | 555-555-5555
==================================
Wanted query results
==================================
STU_PHONE | #Students | UNIQUE_SCHOOLS
111-222-3333 | 3 | 2
999-888-7777 | 2 | 1
555-555-5555 | 3 | 3
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Jun 22, 2007
Hello,
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.
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Mar 11, 2008
i 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
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Aug 16, 2006
I 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!
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Apr 26, 2007
I 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
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Feb 2, 2008
I 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
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Feb 29, 2008
I 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
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Aug 28, 2001
hai
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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Jul 26, 2002
I 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
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Oct 18, 1999
How can I find out a user's suid or login name from within a stored procedure?
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Sep 23, 2005
Hi, 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
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Jul 8, 2005
I 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
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Dec 15, 2006
I 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.
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Jul 7, 2004
I 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
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Oct 7, 2004
Hi,
Anyone got any ideas how to calculate the occupied row size of a table?
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Dec 3, 2004
Hi,
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
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Jan 27, 2005
Hi, 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
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May 16, 2007
I've done a search and I THINK I've got my head round this, but I'd be very grateful if someone could reassure me:
SELECT Email FROM List1 WHERE EXISTS (
SELECT Email FROM List2 WHERE List2.Email= List1.Email
) AND List1.Email <> '44'
That will give me every email address from list one that (a) appears in list two, and (b) isn't '44'. Right?
And to find all the emails from List1 that DON'T occur in List2 (and aren't '44'), I just put "NOT" in front of "EXISTS". Right?
Sorry for asking an obvious question but I'm having a real mental block here. :o
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Feb 8, 2008
I have many tables in one database, and some of them are empty. How can I list / find (for eg. names) only non-empty tables?
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Apr 15, 2013
Our products exist in batches. These batches reference a warehouse.Each warehouse carries a set of 'roles'.Users on our system also carry 'roles'. Comparing user and warehouse roles tells the system what warehouses a user can access.
So, if:
WAREHOUSE1 has roles A + B
WAREHOUSE 2 has role B
WAREHOUSE 3 has roles A + C
and
USER1 has role A
USER2 has roles A + B + C
USER3 has role C
then
USER1 will have access to WAREHOUSE1 and WAREHOUSE3
USER2 will have access to all 3 warehouses
USER3 will have access to WAREHOUSE3.
What I need to do is write some SQL which allows a part number to be entered, and a list of batches for that part to be shown with a list of users who *CANNOT* access that part - because they do not have the relevant 'roles' for the warehouse(s) the part is in.
I can do the *opposite* of this quite easily (ie: show users who HAVE got access):
select distinct sb.batchnumber, ur.userid
from stockbatches sb
inner join warehouseroles wr on sb.warehouseid = wr.warehouseid
inner join user_roles ur on wr.roleid = ur.roleid where sb.partid = @part
order by sb.batchnumber, ur.userid
- it's a straightforward join between the warehouse and user roles, with a 'distinct' to eliminate any duplications.
Fair enough, but it's not what I want.
Using the role data above, with the following batch info:
Batch 1000, warehouse WAREHOUSE1
Batch 1001, warehouse WAREHOUSE2
Batch 1002, warehouse WAREHOUSE3
I actually want to get this results set:
Batch Users who can't use this batch
1000 USER3
1001 USER1
1001 USER3
I'm certain I can write the necessary logic programmatically in T-SQL, looking for single-statement SQL call?
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Feb 26, 2004
Hi All,
Sql server 7
Is there anyway of listing the indexes that are present in a database.
TIA
Adil
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Mar 19, 2004
According to a developer that worked on my db, there is a view :
xvw_CheckVoucherReport
I cant see it is there any way i can find out it exsist and if so what database on my server it is in?
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Apr 8, 2008
So here is my dilemma:
We have licensed software from a 3rd party and we do not have the source code, nor can we do anything to change the database schema, write our own procs, triggers, etc.
With that said, we want to know which records in certain tables have been added or modified since a certain time (for example, in the past 24 hours). However, none of the tables has any datetime or timestamp columns on them for create date, update date, etc.
I tried to look into hacking thru DBCC log (dbname, 2) to see if that would help, what a mess. Using a tool like that from Luminent or Red Gate doesnt help either, because long term this needs to be automated if possible. Does anyone have any ideas on how to do this, or is the answer simply, "Sorry mate, you need to get them to allow you to change the database to add new columns and/or triggers". :)
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Apr 9, 2008
Hi, I have two tables, Weekly and AverageEngTime. Weekly table has 14 columns, "Mon_Day,Mon_Night,Tue_day,....Sun_Night". AverageEngTime table has 15 columns, "Shifts,Mon_Day,Mon_Night,Tue_day,....Sun_Night". I have inserted "Average" as a value for column "Shifts" in AverageEngTime table. Now how do I find the average for each column in Weekly table and insert into AverageEngTime table in the respective columns, and in the row where Shifts = "Average".
I used the following codes to try but i receive errors at where statement.Please correct me. The expected output as below.
Shifts | Mon_day | Mon_Night | Tue_Day.....
Average | 5.2 | 10.2 | 15.2........
The codes that i tried..
declare @Weekday tinyint, @hour int
select @Weekday = datepart(dw,getdate()),@hour= datepart(hh,getdate())
if (@Weekday= 1 and (@hour>= 7 AND @hour<19))
begin
Insert Into AverageEngTime(Sat_Night) where Shifts = 'Average'
SELECT AVG(Sat_Night)
FROM Weekly
end
if ((@Weekday= 1 and @hour >= 19) OR (@Weekday = 2 and @hour < 7))
begin
Insert Into AverageEngTime(Sun_Day) where Shifts = 'Average'
SELECT AVG(Sun_Day)
FROM Weekly
end
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Apr 18, 2008
I need to find the object which holds the value(in column)
Whether it is possible?
suppose i need to find the text 'Goal' in stored procedure then i will give:
select * from syscomments where text like '%goal%'
suppose i need to find the text 'Goal' in table level.any system stored procedure?
Txs in Advance..
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May 2, 2008
Hi,
How to find if a column exists in Database Table ?
thanx in advance
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May 30, 2008
Hi,
I our firm there are 4 people who are working on a database. I need to edit all of my views. Is there any way I can find out which view was created by me?
Please help me.
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Jun 5, 2008
how can i find duplicates in my database? i want to find them in the website and expressemail field
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