Group By - Count Returns No Rows
Jun 12, 2007
Hi everyone:
I guess this should be a simple question but have not been able to find the answer, does anyone know how to make a SQL Sentence to return at least one row when counting?
SELECT COUNT(Id_Field), Field2 FROM Table1 WHERE Code_Field = 1 GROUP BY Field2
This will return 0 rows when the where criteria is not matched by any record on the Table1, but I would like to have one row counting 0 rows, in stead it returns no rows at all.
Thanks for any help.
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Jan 29, 2007
I'm new to MSSQL 2005 and want to get a summary of a log table. I want to count all the rows for each date based on a DATETIME field called 'post_date' that holds the date and time of each record's creation.
this is the best I can come up with:
Code:
SELECT
DISTINCT(LEFT(post_date,11)) AS post_date, COUNT(DISTINCT(LEFT(post_date,11))) AS total_posts
FROM log_directory_contacts
GROUP BY post_date
The results show each date but the count column ('total_posts') returns '1' for every row even when I know their are more than 1 record on that date.
What am I doing wrong? Thanks!
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May 20, 2008
I'm running SQL Server 2008 Feb08 CTP and I've got a tablix with column groupings and row groupings which works nicely, I'm a becomming a big fan of the tablix.
However sometimes the filter I have on a column group returns no records and the whole column group disappears.
Is there any way to make this column appear with but with empty cells as I have another tablix down the page with the same columns and I want the columns to all line up on the multiple tablix.
In Version 2005 I used to achieve the equivalent of a column group within a table by adding a list with filter to the cell, this meant the column always was shown, the tablix allows does this much more elegantly but I'll have to go back to the old method if I can't make the column remain.
Am I just missing a simple option?
Nathan
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Dec 24, 2003
Hi, I am trying to get the first row of what might be a group of any size of rows within an id that may contain a specific field. For eg
Row A = NoteID 1, FK_JobID 1, UnRead
Row B = NoteID 2, FK_JobID 1, UnRead
Row C = NoteID 3, FK_JobID 1, UnRead
I need the sql to return to just one Job (row) even though the job as 3 UnRead fields. But its returning 3 because its only doing what I'm asking. What I need it to do is just get the one Job (row) where any of the notes = UnRead.
I tried using Top 1, but that will only ever return one row and since I need it to return more than one job (row) it won't work.
Heres my attempt
DECLARE @UserID INT
SET @UserID = 4
SELECT User_Notes.BeenRead, Master_Jobs.By_Who, Master_Jobs.Next_Action, Master_Jobs.Due_Time, Master_Jobs.Due_Date, Master_Jobs.Contact,
Master_Jobs.Job_Title, Master_Jobs.JobID
FROM User_Notes INNER JOIN
Note ON User_Notes.FK_UN_NoteID = Note.NoteID INNER JOIN
Master_Jobs ON Note.FK_JobID = Master_Jobs.JobID
WHERE Note.FK_UserID = User_Notes.FK_UN_UserID AND
BeenRead = 'UnRead'
Thanks in advance
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May 1, 2007
Hello.
I built a report with one field as a group.
I want to count the number of rows in each field so I can add it to the group field or somw where in the report.
How can I count how many rows do I have in each group?
Thanks.
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Jun 25, 2007
Hi all
i using lookup error output to insert rows into table
Rows count rows has been inserted on the table 59,123,019 mill
table rows count 6,878,110 mill ............................
any ideas
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May 1, 2014
select top 15 count(*) as cnt, state from table
group by state
order by cnt desc
[code[...
Can the above three queries be combined into one and still be fast, if so how?What i am trying to go is an item count, by group, similar to ones Inbox in Outlook.
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Dec 13, 2014
Why does this return 64.00000 Hours Worked when if you do the calculation yourself you see that it should only be 16?
Code:
Create Table #One
(
BadgeNum int,
NameOnFile varchar(1000),
hoursworked int
[code]....
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Feb 6, 2008
HiI am new to SQL and am having a problem. I need to fix my query to do the following...2) get a total of the number of rows returned.
DECLARE @StartDate varchar(12)DECLARE @EndDate varchar(12)DECLARE @Region varchar(20)
SET @StartDate = '01/01/2002'SET @EndDate = '12/31/2008'SET @Region = 'Central'
SELECTA.createdon,A.casetypecodename,A.subjectidname,A.title,A.accountid,A.customerid,A.customeridname,B.new_Region,B.new_RegionName
FROM dbo.FilteredIncident AINNER JOIN dbo.FilteredAccount B ON A.customerid = B.accountid
WHERE (A.createdon >=@StartDate AND A.createdon <= @EndDate)AND (B.new_RegionName = @Region)AND (A.casetypecode = 2)
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Mar 4, 2005
OK heres the situation, I have a Categories table and a Products table, each Category can have one or many Products, but a product can only belong to one Category hence one-to-many relationship.
Now I want to do a SELECT query that outputs all of the Categories onto an ASP page, but also displays how many Products are in each category eg.
CatID | Name | Description | No. Products
0001 | Cars | Blah blah blah | 5
etc etc
At the moment I'm doing nesting in my application logic so that for each category that is displayed, another query is run that returns the number of products for that particular category. It works ok!
However, is there a way to write a SQL Statement that returns all the Categories AND number products from just the one SELECT statement, rather than with the method I'm using outlined above? The reason I'm asking is that I want to be able to order by the number of products for each category and my method doesn't allow me to do this.
Many thanks!
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Jan 3, 2008
After changing the Service account for a SQL Server 2005 SP2 machine the DMV sys.dm_os_performance_counters
is returning zero rows. These values were availiable prior to change
The change in Service account was done via the Configuration manager and the Service account is also part of the Local Administrator group
Since this change the Performance Counters in Perfmon for SQLSEVERatabases and others are also not availiable
Any suggestions on where to start looking ?
Nadreck
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May 7, 2007
Good day,
I just like to ask if anybody has experienced getting empty rows from SQL data adapter? I'm using SQL Server 2005. Problem is when the sql is run on Query Analyzer it retrieves a number of rows but when used in my application it returns 0 or empty rows.
I thought the connection is not the problem since I got my columns right. Below is my code snippet.
Thanks!
const string COMMAND_TEXT = @"select distinct somefield as matchcode, count(somefield) "
+ "as recordcount from filteredaccount where StateCode = 0 group by somefield having count(somefield) > 1";
SqlDataAdapter adapter = new SqlDataAdapter(COMMAND_TEXT, connection);
DataTable dt = new DataTable(sometablename);
adapter.Fill(dt);
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Nov 1, 2005
Hi all,
I am trying to build a association table (t2) to store a list of users
have viewed an item in my records table (t1). My goal is to send the
UserID parameter to the query and return to the user a read / not read
marker from the query so I can handle the read ones differently in my
.net code. The problem is that I cannot work out how to return anything
but the read data to the client. So far my stored proc looks like this
DECLARE @UserID AS Int -- FOR TESTING
SET @UserID = 219 -- FOR TESTING
SELECT t1.strTitle, t1.MemoID, Count(t2.UserID) AS ReadCount,t2.UserID
FROM t1
LEFT OUTER JOIN
t2 ON t1.MemoID = t2.MemoID
WHERE t2.UserID = @UserID
GROUP BY t1.MemoID, t1.strTitle,t2.UserID
It works fine but only returns those records from t1 that are read. I
need to return the records with null values also! I may have built the
assoc table wrong and would really appreciate some pointers on what I
am doing wrong. (assoc table has rID, MemoID and UserID columns)
Please help!
Many thanks
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Aug 15, 2003
Hi,
I have DB monitoring jobs which use Sysperfinfo to monitor some of the counters. On One SQL 2K Server since few days the select on sysperfinfo returns 0.
Do you think I need to start any service from the OS side to enable this?
Your input is highly apppreciated.
Thanks,:confused:
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Oct 23, 2007
Hi,
I'm having a little trouble with the following code:
SELECT DISTINCT cd1.*, cd2.*
FROM Table1 cd1 LEFT JOIN Table2 cd2
ON cd1.RegNr=cd2.RegNr
WHERE cd1.RegNr = $RegNr
I want it to return the 2 rows that is present in the tables but it returns 4.
1262007-10-20 10:14:00
1262007-10-20 10:14:00
1262007-10-20 10:17:00
1262007-10-20 10:17:00
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Feb 24, 2007
I have the following query:
select sq.*, p.numero, p.nombre
from paf p right outer join dbo.GetListOfSquaresForShippingLot(@lot) sq on sq.number = p.numero and sq.version = p.numero
The @lot parameter is declared at the top ( declare @lot int; set @lot = 1; ). GetListOfSquaresForShippingLot is a CLR TVF coded in C#. The TVF queries a XML field in the database and returns nodes as rows, and this is completed with information from a table.
If I run a query with the TVF only, it returns data; but if I try to join the TVF with a table, it returns empty, even when I'm expecting matches. I thought the problem was the data from the TVF was been streamed and that's why it could not be joined with the data from the table.
I tried to solve that problem by creating a T-SQL multiline TVF that is supposed to generate a temporary table. This didn't fix the problem.
What can I do? Does anybody know if I can force the TVF to render its data somewhere so the JOIN works? I was thinking a rowset function could help, but I just can't figure out how.
PLEASE HELP!!!!
Let me know if you want the code for the CLR TVF. This is the code for the T-SQL TVF:
CREATE FUNCTION [dbo].[GetTabListOfSquaresForShippingLot]
(
@ShippingLot int
)
RETURNS
@result TABLE
(
Number int, Version int, Position smallint,
SubModel smallint, Quantity smallint,
SquareId nvarchar(5),
ParentSquareId nvarchar(5),
IsSash smallint,
IsGlazingBead smallint,
Width float,
Height float,
GlassNumber smallint,
GlassWidth float,
GlassHeight float
)
AS
BEGIN
INSERT INTO @result
SELECT *
FROM dbo.GetListOfSquaresForShippingLot(@ShippingLot)
RETURN
END
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Apr 24, 2008
I have a Select Distinct myfield that returns multiple rows with same value for myfield when it should only one. Why is this happening?
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Sep 8, 2004
I maintain a simple employment (job) tracking web application.
Jobs can be set to 5 different statuses: Open, Closed, Filled, Pending, or Cancelled.
There is a table in the database called statusLog, which records everytime a job is set to opened, or set to closed, etc. It records the job number, the date it was changed, and what the job was changed to.
Here is a short example of what a few entries might look like:
Status Date Job number
Open10/6/2002 2:34:56 PMTEST2845
Hold10/11/2002 12:19:29 PMTEST2845
Closed10/29/2002 2:00:54 PMTEST2845
Pending10/25/2002 3:37:06 PMTEST2877
What I need to do is write an SQL query that will return to me all entries in this table, between two certain dates, that ONLY have entries during those dates.
Basically I need to know how many "new" jobs were set to open during a month. I can easily just do a count of how many jobs were set to open, but this will not give a count of "new" jobs.
Example: during june a job could be set to open. Then in july it could be set to pending. Then in august, it could be re-opened, and set to open.
If I ran this query for the month of August, it would return that job as being opened in august. But it wasn't a new job, meaning it had already been in the system in previous months.
Is there some way I can select all "Open" jobs, between a certain date, that do not exist anywhere in the table previous to the date it was entered? This would give me a result set containing only new jobs.
The only way I've thought of yet is to get a result set of all jobs simply set to open during a month, then one by one for each record, go back and run another SQL query to see if it exists in the table anywhere other than in that month.
This seems horribly inefficient to me however, as I do not want to be doing 34,000 independent SQL calls for every single "open" job it finds during a certain month.
thanks
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Oct 25, 2004
We are running the following query, which has a unique index on Table_2 (col1 and sys1), and Column col1 from Table_1 is unique.
select top 100 s.*, x.col1
from Table_1 s
left outer join Table_2 x
on x.col1 = s.col1 and x.sys1 = 'SYSTEM0'
Unfortunately this query returns duplicate rows. And every time the result is different
But once we dbcc dbreindex the unique index on Table_2, the result will not have any dups.
Any ideas?
Thanks
Steve
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Dec 3, 2013
Here is my query which returns multiple rows
SELECT
R.name, R.age,R.DOB,
ISNULL(D.Doc1,'NA') AS doc1,
ISNULL(C.Doc2,'NA') AS doc2
FROM
REQ R
inner join RES S ON R.Request_Id=S.Request_Id
inner join RES1 D ON D.Response_Id=S.Response_Id
inner join REQ1 C ON C.Request_Id=R.Request_Id
select * from RES1 where Response_Id = 111 -- return 3
select * from REQ1 where Request_Id = 222 --- returns 2
So at last inner join retuns 3*2 = 6 records , which is wrong here and i want to show 3 records in doc1 row and 2 records in doc 2 rows ...
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May 2, 2007
Without systemAdmin role, xp_AvailableMedia can still run (after granting execute permission) but just return 0 rows.
It seems we have to give the user SystemAdmin role, in order to get the list of devices in SQL 2005, while in previous versions of SQL Server, the user granted the execute permission for xp_AvailableMedia will be able to get the list of devices.
Is this be design? Is there any way the a NON-SA user can retrieve device list? If yes, what extra permissions do we have grant?
Thanks in advance for your help.
Frank
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May 8, 2008
I'm pretty new to .NET and am looking for advice on how to speed up a simple stored procedure that returns 35,000 plus rows. It's a super simple query that returns a client list. It's just that there is soooooo many rows, it's super slow when the page loads.
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Jul 22, 2007
Hello All.
I am struggling with the below join block in my stored procedure.
I can't seem to get the duplicate row problem to go away. It seems that SQL is treating each new instance of an email address as reason to create a new row despite the UNIONs.
I understand that if I am using UNION, using DISTINCT is redundant and will not solve the duplicate row problem.
Primary Keys: none of the email address columns are primary keys. Each table has an incrementing ID column that serves
as the primary key.
I am guessing I am encountering this problem because of how
I have structured my Join statements? Is it possible to offer advice without a deeper understanding of my data model or
do you need more information?
Thanks for any tips.
Code:
select emailAddress from Users union
select user_name from PersonalPhotos union
select email_address from EditProfile union
select email_address from SavedSearches union
select distinct email_address from UserPrecedence union
select email_address from LastLogin) drv
Left Join Users tab1 on (drv.emailAddress = tab1.emailAddress)
Inner Join UserPrecedence tab5 on tab5.UserID=tab1.UserID
Left Join PersonalPhotos tab2 on (drv.emailAddress = tab2.user_name)
Left Join LastLogin tab4 on (drv.emailAddress = tab4.email_address)
Left Join EditProfile tab3 on (drv.emailAddress = tab3.email_address)
Left Join SavedSearches tab6 on (drv.emailAddress = tab6.email_address
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Aug 9, 2014
I don't understand using a dynamic cursor.
Summary
* The fetch next statement returns multiple rows when using a dynamic cursor on the sys.dm_db_partition_stats.
* As far as I know a fetch-next-statement always returns a single row?
* Using a static cursor works as aspected.
* Works on production OLTP as well as on a local SQL server instance.
Now the Skript to reproduce the whole thing.
create database objects
-- create the partition function
create partition function fnTestPartition01( smallint )
as range right for values ( 1, 2, 3, 4, 5, 6, 7, 8 , 9, 10 ) ;
[Code]....
Why does the fetch statement return more than 1 row? It returns the whole result of the select-statement. When using a STATIC cursors instead I get the first row of the cursor as I would expect. Selecting a "normal" user table using a dynamic cursor I get the first row only, again as expected.
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Jun 18, 2015
I have a query that based 2 tables. I wrote a query with a left join on the base table but the result set returns multiple rows for each occurrence in the second table because of the left join. I want but to return all records from on table A and only matching records from table B which id but I would wan tit to keep return them vertically as the because it make it difficult to read when put in a spreadsheet. It want it to return the values horizontally so the rows are not increasing for each occurrence on table b.
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Nov 29, 2013
I am trying to do a bulk import of data from XML into sQL.
My query returns no errors but no data gets imported.
Here is my XML
?xml version="1.0" encoding="utf-8"?>
<status>
<connection_status>successful</connection_status>
<operation_status>successful</operation_status>
<CustomerDeposits>
[code]....
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Jan 19, 2015
I have a simple query that joins a largeish fact table (3 million rows) to a view that returns 120 rows. The SKEY in the view is returned via a scalar function. The view returns instantly if queried on it's own however when joined to the fact table in the simple query below results in a query execution plan that runs forever. Interestingly if I change the INNER JOIN to a LEFT OUTER JOIN the query returns the matched results almost instantly.
Select
Dimension.Age_Band.[10_Year_Age_Band],
Count(*)
From
Fact.APC_Episodes
Inner Join Dimension.Age_Band ON
Fact.APC_Episodes.AGE_BAND_SKEY = Age_Band.AGE_BAND_SKEY
Group By
Dimension.Age_Band.[10_Year_Age_Band]
I know joining to a view using a column generated by a scalar function is not a good recipe for performance. I also know that I could fix this by populating a physical table with the view first as I have already tested this though I hoping not to have to go down that route.
Why a LEFT OUTER JOIN works and not an INNER JOIN or anyway I can get the query optimizer to generate an execution plan that works?
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Oct 22, 2015
Here's what my table looks like;
UniqID | Code |
1 | ABC
1 | 123
2 | ABC
3 | ABC
4 | ABC
4 | ABC
I only want to UniqIds that only have the CODE of ABC... and if it contains ANYTHING other than ABC then It doesnt return that UniqID... Now keep in mind there's multiple different codes.. I'm just looking for a bit of code that drops any ID's that don't have my criteria.
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Feb 13, 2015
comparing UNIQUEIDENTIFIER columns..This query returns several rows where the [ReportId] and [LastRunDate] columns are both NULL:
SELECT [c].[Name],[c].[ItemID],[xl].[ReportID]
, MAX([TimeStart]) [LastRunDate]
FROM [dbo].[Catalog] [c]
LEFT JOIN [dbo].[ExecutionLogStorage] [xl] on [c].[ItemID] = [xl].[ReportID]
WHERE [c].[Type] NOT IN (1,5) -- Not a folder or a data source!
group by [c].[Name],[c].[ItemID],[xl].[ReportID]
order by 4
However, trying to just list catalog reports with no execution history returns 0 rows, but I'm expecting it to return a row for every NULL [ReportId] from the above query:
SELECT *
FROM [dbo].[Catalog]
WHERE [Type] NOT IN (1,5) -- Not a folder or a data source!
AND [ItemID] NOT IN (SELECT [ReportID] FROM [dbo].[ExecutionLogStorage])
I even tried casting [ItemId] and [ReportId] columns in the 2nd query to VARCHAR(255), and still got no rows, but the following queries return 0 rows and 1 row (respectively).
select * from [dbo].[ExecutionLogStorage] where [ReportID] = '0BB2209C-7736-46C8-AD02-4614EBA4F0F1'
select * from [dbo].[Catalog] where [ItemID] = '0BB2209C-7736-46C8-AD02-4614EBA4F0F1'
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Dec 21, 2007
I want to know how to merge the following data. I am using 4 queries below. I was hoping to do it with 1 query. Table1Dist Fund VAE AOVAW AOMD CourtMD JudgeCAC AOCAC CourtVAE JudgeVAE JudgeI want to join the following 3 queries:DcountAll DcountAOSelect Dist, Count(Dist)as Count from Table1 GROUP BY Table1.Dist Select Dist, Count(Dist) as Count from Table1 Where Dist='AO' GROUP BY Table1.DistDcountCourtSelect Dist, Count(Dist) as Count from Table1 Where Dist='Court' GROUP BY Table1.DistSELECT DCountAll.Dist, DCountAll.Count, DcountAO.Count AS AO, DcountCourt.CountFROM DcountCourt RIGHT JOIN (DcountAO RIGHT JOIN DCountAll ON DcountAO.Dist = DCountAll.Dist) ON DcountCourt.Dist = DCountAll.Dist;
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May 30, 2008
hi everyone, I have a table: Help
A B C05/01/2008 100 1 05/01/2008 100 205/01/2008 100 205/01/2008 200 1 05/01/2008 200 2
SELECT A, COUNT(DISTINCT C) FROM help GROUP BY A
Result:1> 05/01/2008 2I need:1> 05/01/2008 4Thanks !!!
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Nov 3, 1998
TO all SQL Gurus,
The following statement returns let say 4 records -
SELECT title, price FROM table GROUP BY title
what is the correct syntax for the statement to return the count of 4 ?
if I put ->
SELECT count (*) FROM table GROUP BY title
it'll return 1.
Thanks,
Frank
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May 23, 2008
Hi everybody I have this sql code
SELECT i.infid, i.infname, i.infcalled, p.pubinfid, p.pubpub, p.publang, p.pubcount, p.pubid, n.cdpldesc
FROM info AS i INNER JOIN
pubssubscribe AS p ON i.infid = p.pubinfid INNER JOIN
newpubs AS n ON p.pubid = n.pubid
WHERE (i.infcond IS NULL)AND (p.pubid BETWEEN 30 AND 33) AND (p.pubcount > 1) AND (NOT (p.publang = '.'))
there are many records where infid appears more than once because people could subscribe in different in different publicatons.
ex.
infid pubid
1 30
1 32
1 33
2 30
etc... I want to count the infid appearing once and group it with infid
thanks
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