Count() And Sub-select
Aug 26, 2004
Hello,
I'm new to SQL.
For a statistic application, I wish know the subtotal of lines pro region (Mitte, ost, west, ost, etc).
How can I do that?
A lot of thx for your help and time,
Regards, Dominique
Code:
SELECT
distinct case
when ANZSUCHEN.KANTON = '' then 'nicht_zugeteilt'
when ANZSUCHEN.KANTON = '----------------------------------' then 'nicht_zugeteilt'
when ANZSUCHEN.KANTON = 'AG' then 'mitte'
when ANZSUCHEN.KANTON = 'AI' then 'ost'
when ANZSUCHEN.KANTON = 'AR' then 'ost'
when ANZSUCHEN.KANTON = 'BE' then 'bern'
when ANZSUCHEN.KANTON = 'BL' then 'mitte'
when ANZSUCHEN.KANTON = 'BS' then 'mitte'
when ANZSUCHEN.KANTON = 'FR' then 'west'
when ANZSUCHEN.KANTON = 'GE' then 'west'
when ANZSUCHEN.KANTON = 'GL' then 'ost'
when ANZSUCHEN.KANTON = 'GR' then 'ost'
when ANZSUCHEN.KANTON = 'JU' then 'west'
when ANZSUCHEN.KANTON = 'LU' then 'mitte'
when ANZSUCHEN.KANTON = 'NE' then 'west'
when ANZSUCHEN.KANTON = 'NW' then 'mitte'
when ANZSUCHEN.KANTON = 'OW' then 'mitte'
when ANZSUCHEN.KANTON = 'SG' then 'ost'
when ANZSUCHEN.KANTON = 'SH' then 'ost'
when ANZSUCHEN.KANTON = 'SO' then 'mitte'
when ANZSUCHEN.KANTON = 'SZ' then 'mitte'
when ANZSUCHEN.KANTON = 'TG' then 'ost'
when ANZSUCHEN.KANTON = 'TI' then 'west'
when ANZSUCHEN.KANTON = 'UR' then 'mitte'
when ANZSUCHEN.KANTON = 'VD' then 'west'
when ANZSUCHEN.KANTON = 'VS' then 'west'
when ANZSUCHEN.KANTON = 'ZG' then 'mitte'
when ANZSUCHEN.KANTON = 'ZH' then 'ost'
end as region,
(SELECT count(*) FROM ANZSUCHEN WHERE ANZSUCHEN.KANTON = 'FR')
FROM
ANZSUCHEN
GROUP BY
ANZSUCHEN.KANTON
ORDER BY
region
Results:
Code:
region (No colomn name)
bern34
mitte34
nicht_zugeteilt34
ost34
west34
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Jun 21, 2006
I have created two select clauses for counting weekdays. Is there a way to combine the two select together? I would like 1 table with two columns:
Jobs Complete Jobs completed within 5 days
10 5
-------------------------------------------------------------------------------------------------
SELECT COUNT(DATEDIFF(d, DateintoSD, SDCompleted) - DATEDIFF(ww, DateintoSD, SDCompleted) * 2) AS 'Jobs Completed within 5 days'
FROM dbo.Project
WHERE (SDCompleted > @SDCompleted) AND (SDCompleted < @SDCompleted2) AND (BusinessSector = 34) AND (req_type = 'DBB request ') AND
(DATEDIFF(d, DateintoSD, SDCompleted) - DATEDIFF(ww, DateintoSD, SDCompleted) * 2 <= 5)
---------------------------------------------------------------------------------------
Select COUNT(DATEDIFF(d, DateintoSD, SDCompleted) - DATEDIFF(ww, DateintoSD, SDCompleted) * 2) AS 'Total Jobs Completed'
From Project
WHERE (SDCompleted > @SDCompleted) AND (SDCompleted < @SDCompleted2) AND (BusinessSector = 34) AND (req_type = 'DBB request ')
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Aug 23, 2013
I am using three tables in this query, one is events_detail, one is events_summary, the third if gifts. The original select statement counted the number of ids (event_details.id_number) that appear per event_name (event_summary.event_name).
Now, I would like to add in another column that counts the number of IDs that gave a gift who attended an event that were also listed in the event_ details table. So far I have come up with the following. My main issue is linking the subquery properly back to the main query. how to count in the sub-query and have the result placed within the groups results in the main query.
SELECT es.event_name, es.event_id, COUNT(ed.id_number) Number_Attendees,
(
SELECT COUNT(gifts.donor_id) AS Count2
FROM gifts
WHERE gifts.donor_id = ed.id_number
) subquery2
[code]....
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Oct 25, 2007
Hello, I would like to count the number of items in a table. I used the following code:1 Dim Comments As Integer
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3 Dim SqlCommand As New SqlCommand("SELECT COUNT(CommentID) FROM Comments WHERE ThemeID = '3', cnn")
4
5 cnn.Open()
6 Comments = SqlCommand.ExecuteScalar()
7 cnn.Close()
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Nov 18, 2007
I need to select total number of rows from my data base table....here is what ive been trying....I know it wrong...but maybe someone can fix it. Thank you very much.
Function DBConnection(ByVal strUserName As String, ByVal strPassword As String) As BooleanDim MyConn As New Data.SqlClient.SqlConnection(ConnectionString)
Dim cmd As New Data.SqlClient.SqlCommand("Select count * from ClassifiedAds", MyConn)Dim dr As Data.SqlClient.SqlDataReader
'cmd.Parameters.Add(New Data.SqlClient.SqlParameter("@UserName", textbox_username.Text))
' cmd.Parameters.Add(New Data.SqlClient.SqlParameter("@Password", textbox_password.Text))
cmd.Connection.Open()
dr = cmd.ExecuteReader()
dr.Read()
If dr.HasRows Then
Label_totalclassifieds.Text = dr.Read
Return True
Else
dr.Close()
cmd.Connection.Close()
Return False
End If
End Function
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May 3, 2007
I have the following code in VB.Net trying to count # of records in the datatable. Upon execution of the code, it returns only 1 record. I know for fact that there are more than 1 record in the datatable (there are 230 records in the table).
Can somone please tell me where is my problem ?
Public Function Get_Record_Count(ByVal Table_Name As String, ByVal Criteria As String) As Long
Dim tbl As DataTable
strSQL = "SELECT count(*) FROM [" & Table_Name & "]"
If Len(Criteria) > 0 Then
strSQL &= " WHERE " & Criteria
End If
ADO_Adapter = New OleDb.OleDbDataAdapter()
tbl = New DataTable(Table_Name)
ADO_Adapter.SelectCommand = New OleDbCommand(strSQL, ADO_Conn)
Dim Builder As OleDbCommandBuilder = New OleDbCommandBuilder(ADO_Adapter)
ADO_Adapter.Fill(tbl)
'Return # of records found in table
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tbl.Dispose()
End Function
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Jan 9, 2008
Hallo!
I have a table student(teacherID, studentID, studentName...) that contains data for a certain student and a table teacher(teacherID, teacherName...) that contains data for the teacher. Student can be imagine as follow:
tID | sID ... other fields
----------
1 1
1 2
1 3
1 4
2 5
2 6
2 7
3 8
For example, teacher of tID=1 teachs to 4 students.
I'd like to select all the fields from teacher where the teacher has more than x students.
Is it possible? How can I do?
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SchoolTable:
SchoolName | ApplicantName | Admission
------------------------------------------------
North School | Student1 | Admitted
North School | Student2 |
North School | Student3 |
East School | Student4 |
East School | Student5 |
East School | Student6 |
West School | Student7 | Admitted
West School | Student8 |
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------------
East School
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Jan 4, 2007
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Oct 21, 2007
When I try and execute this query I get the belwo error.
I want to get the ItemName and the Count as one column.
How can this be done?
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ERROR: Conversion failed when converting the nvarchar value 'Spark Plug - ' to data type int.
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Nov 23, 2007
Hello,
I am writing a piece of code in ASP.NET and I'd like to get the # of records on a table and used this code:
Dim ConnString As String = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source='G:Aco ProntoBSCBSC_v1.mdb'"Dim Con As New OleDbConnection(ConnString)
Dim Cmd As New OleDbCommand("SELECT COUNT(*) AS Expr1 FROM Metricas", Con)Dim reader As OleDbDataReader
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reader.Close()
Con.Close()
I am getting an error that that's no data in the table.
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Feb 25, 2008
HI All, I have what is most likely a simple MS SQL query problem (2005).I need to add two computed columns to a result set, both of those columns are required to provide the count of a query that contains a parmamter. (The id of a row in the result set) 3 Tables (Showing only the keys)t_Sessions-> SessionID (Unique) t_SessionActivity-> SessionID (*)-> ErrorID (Unique) t_SessionErrors-> ErrorID (1) I need to return something like (Be warned the following is garbage, hopefully you can decifer my ramblings and suggest how this can actualy be done) SELECT SessionID, (SELECT COUNT(1) AS "Activities" FROM t_SessionActivity WHERE t_SessionActivity.SessionID = t_Sessions.SessionID), (SELECT COUNT(1) AS "Errors" FROM dbo.t_Sessions INNER JOIN dbo.t_SessionActivity ON dbo.t_Sessions.SessionID = dbo.t_SessionActivity.SessionID INNER JOIN dbo.t_SessionErrors ON dbo.t_SessionActivity.ErrorID = dbo.t_SessionErrors.ErrorID WHERE t_SessionActivity.SessionID = t_Sessions.SessionID)FROM t_Sessions Any help greatfully received. Thanks
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Plz help me out making a SELECT for my imagegallery.
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Table two: [images] contains the fields [imageId], [imagePath] and forign key [albumId}
In my albumspage i would like to show all albums listed in [albums] (the easy part) AND for every album i would like to count how many images there's related to the particular album AND a random retrieve a random [imagePath]
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Jul 16, 2006
Hello
I want to get the COUNT of
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doesnt work
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Jul 19, 2006
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Apr 23, 2008
I'm ashamed! I'm stuck on something so simple....
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SELECT cnt=CASE WHEN (SELECT COUNT(*) FROM MyTable)>0 THEN 1 ELSE 0 END
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Any suggestions welcome.
Cheers!
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Jun 11, 2008
Here's my tables:
-------------------------------------------------------
tblMembers
-------------------------------------------------------
MemberID | CountryID
-------------------------------------------------------
-------------------------------------------------------
tblCountries
-------------------------------------------------------
CountryID | CountryName
-------------------------------------------------------
-------------------------------------------------------
tblOrders
-------------------------------------------------------
OrderID | MemberID | OrderTypeID
-------------------------------------------------------
-------------------------------------------------------
tblSubscriptionOrders
-------------------------------------------------------
SubscriptionOrderID | OrderID | SubscriptionPackID
-------------------------------------------------------
-------------------------------------------------------
tblSubscriptionPacks
-------------------------------------------------------
SubscriptionPackID | TypeID
-------------------------------------------------------
Here's what I'm trying to do:
1. Output each country in one column
2. Output the number of subscriptions made from a member of that country where tblOrders.orderTypeID = 3 and tblSubscriptionPacks.TypeID = 1 in the next column
3. Output the number of subscriptions made from a member of that country where tblOrders.orderTypeID = 3 and tblSubscriptionPacks.TypeID = 2 in the next column
My problem was that I was doing joins, and I was somehow ending up with orders where the OrderTypeID was NOT equal to 3, even though I declared it specifically in the WHERE clause.
Can someone help me with this query?
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Mar 2, 2006
I'm trying to create a DTS package that uses CDO to send users an email. I need to create a sql query that counts two columns. I also need to create aliases for these two columns and then reference this in the sendEmail function. I have something that looks like this but I'm getting a DTS error. I think that it's because I'm not using an alias to reference Valid and Invalid. Can someone tell me how to alias the subselect columns correctly?? thanks :)
select advertiseremail, accountnumber from miamiherald where AdvertiserEmail is not null (select Valid = (select count (*) from miamiherald where validad = 1), Invalid = (select count (*) as Invalid from miamiherald where validad = 0))
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Jul 20, 2005
Hi,I'm trying to get the count of rows from the union of several tables.My code is:select count(*) from (select * from #AdvSearch_Mainunionselect * from #AdvSearch_Atty)This will not get past the syntax check saying that the error occurs onthe final closing ")".Can someone tell me how to correctly write this?Thanks,Glen--------------------------Numbers 6:24-26----------------------------------------------------Numbers 6:24-26--------------------------*** Sent via Developersdex http://www.developersdex.com ***Don't just participate in USENET...get rewarded for it!
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Jul 20, 2005
Could someone assist with getting the count function working correctlyin this example please. I know the count function will return all rowsthat do not have null values, but in this case I want to count all therows except those with a zero sale price, (which are unsold).The table shows works offered for sale by an artist, with a positivefigure under SalePrice indicating a sale, and I want to count thenumber sold by each auction house, and sum the sale price by auctionhouse. The table is as follows:NameSalePriceAuctionDowling12000ChristiesDowling 0ChristiesDowling10000ChristiesDowling 0ChristiesDowling 0ChristiesDowling 6000SothebysDowling 0SothebysDowling 0SothebysDowling 8000SothebysDowling 0SothebysDowling 0SothebysDowling 0SothebysWhen I run this query:SELECT MyTable.Name, Count(MyTable.Name) AS [Number],Sum(MyTable.SalePrice) AS TotalSales, MyTable.AuctionFROM MyTableGROUP BY MyTable.Name, MyTable.AuctionHAVING (((MyTable.Name)="Dowling") AND ((Sum(MyTable.SalePrice))>0));The results are:NameNumberTotalSalesAuctionDowling 5 22000 ChristiesDowling 7 14000 SothebysThe TotalSales is correct, but the Number (Count) is incorrect, as therows with zero were also included. The results should be:NameNumberTotalSalesAuctionDowling 2 22000 ChristiesDowling 2 14000 SothebysHow do I prevent the unsolds (zeros) being counted?Thanks in advance,John Furphy
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Sep 4, 2007
HI,
We have one table have problem when run "select count(*) from table". This is a sql 2000 server. it returned different count everytime when I ran the "select count(*) from table". I used DBCC to check the table and did not find any problems. I can fix it by recreate the table and reimport the data, but the problem come back after we update some data in the table monthly with a stored procedure. Any suggestion?
Thanks
Sand
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Apr 25, 2008
I found some really helpful code that allows for quick retrieval of select count(*). But am I right in saying that select count(*) can cause locks on the table?
This is the code
dbcc updateusage (N'Test')
go
select count(1) from Testdb
go
CREATE FUNCTION dbo.udf_Tbl_RowCOUNT (
@sTableName sysname -- Table to retrieve Row Count
)
RETURNS INT -- Row count of the table, NULL if not found.
/*
* Returns the row count for a table by examining sysindexes.
* This function must be run in the same database as the table.
*
* Common Usage:
SELECT dbo.udf_Tbl_RowCOUNT ('')
* Test
PRINT 'Test 1 Bad table ' + CASE WHEN SELECT
dbo.udf_Tbl_RowCOUNT ('foobar') is NULL
THEN 'Worked' ELSE 'Error' END
* © Copyright 2002 Andrew Novick http://www.NovickSoftware.com
* You may use this function in any of your SQL Server databases
* including databases that you sell, so long as they contain
* other unrelated database objects. You may not publish this
* UDF either in print or electronically.
***************************************************************/
AS BEGIN
DECLARE @nRowCount INT -- the rows
DECLARE @nObjectID int -- Object ID
SET @nObjectID = OBJECT_ID(@sTableName)
-- Object might not be found
IF @nObjectID is null RETURN NULL
SELECT TOP 1 @nRowCount = rows
FROM sysindexes
WHERE id = @nObjectID AND indid < 2
RETURN @nRowCount
END
GO
GRANT EXECUTE ON [dbo].[udf_Tbl_RowCOUNT] TO PUBLIC
GO
use Test -- assuming the UDF was created in Test
go
SELECT [name]
, dbo.udf_Tbl_RowCOUNT ([name]) as [Row Count]
FROM sysobjects
WHERE type='U' and name != 'dtproperties'
ORDER BY [name]
GO
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Apr 22, 2008
Hi,
I have a query:
-- main select
WITH Orders AS
(
SELECT
ROW_Number() OVER(MyDate ASC) RowNo,
** rest o the query ***
)
SELECT *
FROM Orders
WHERE RowNo BETWEEN 100 AND 200
ORDER BY RowNo
--count of records
DECLARE @COUNT INT
SELECT @COUNT = COUNT(*)
FROM ** the same query as above ***
RETURN @COUNT
In this case it can happen that when counting records there will be different number of records that it was at time of paging. Also server has to execute this query twice and the query is quite complicated means that takes time.
Is there any better way to get number of rows in the same part of query with paging ?
Thanks for help
Przemo
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Oct 28, 2006
I have 2 tables, Jobs and Categories.Each job belongs to a category. At present, I am returning all categories as follows:SELECT categoryID, categoryName FROM TCCI_CategoriesWhat I'm trying to do, is also return the number of jobs assigned to each category, so in my web page display, it would show something like this:Engineering(5)Mechanical(10) etc.My db currently has 5 categories, with only one job assigned to a category. I tried the following sub-query, but instead of returning all the categories with their job counts, it just returns the category that has a job assigned to it:SELECT c.categoryID, c.categoryName, COUNT(j.jobID)FROM TCCI_Categories c, (SELECT jobID, categoryID FROM TCCI_Jobs) jWHERE j.categoryID = c.categoryIDGROUP BY c.categoryID, c.categoryName, j.jobIDThis is the output when I run the query:categoryID categoryName Column1 ---------------- ---------------------- ------------------------------32 Engineering 1 How would I fix this?
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Feb 12, 2008
Hi,I'm
apologizing in advance for using someone else's brainpower on what is
basically a logic problem rather than a creative use of T-SQL, but it's
doing me head in.I have a table which contains information on
bookings for runs of advertising. This includes a BookingStart dateTime
field and a BookingEnd datetime field. Between BookingStart and
BookingEnd an ad is considered to be "live".What I need to do
is construct a query which, given a start date and and end date returns
a count of all the records which were "live" between those dates and -
here's the catch - each week must count separately. In other words if
my query asks for data across four weeks, and an ad was "live" for two
of those weeks, it should return a count of two.Any help much appreciated.Cheers,Matt
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Feb 19, 2008
I have the following Select SQL Statement in which I get the count of the 'Code' column based upon a criteria and Group By clause:BEGIN
SELECT Code, COUNT(Code)as exprCount1a
FROM dbo.[Test]
WHERE Section = '1' and Item = 'a' GROUP BY Code ORDER BY Code
END
The results of the statement:
Code | exprCount1a
1 22 44 1
I would like the following results:
Code | exprCount1a
1 22 4
3 04 1
Note: Code ' 3 ' doesn't have any rows that meet the select count statement criteria but I still need to populate ' 0 ' in the results.
Thank you in advance
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Jun 10, 2008
I am attempting to determine if a record for TODAY has been written. If one, I update it. If no records for TODAY have been created yet, I INSERT a new one. I am basing my "if" (C#) on a Select count(*) WHERE as shown below. My problem is that I do not know how to obtain the result. The debugger displays a -1 as the count and the IF falls through to its companion ELSE. Can anyone please set me straight? Oh, I build 'TestDate' from getdate and it ends up as a str like "6/10/2008". The Date column is also a varchar with the same kind of string as its contents.String fpsqlA = ("SELECT count(*) from DailyCounts WHERE Date = '"+testDate+ "'");
SqlCommand fpcmdA = new SqlCommand(fpsqlA, connStringDaily);fpcmdA.CommandType = CommandType.Text;
int iCount = fpcmdA.ExecuteNonQuery();SqlDataAdapter ad1 = new SqlDataAdapter(fpcmdA);
ad1.Fill(dtA);
//Test to see if a record for 'today' has already been written to the DailyCounts table. if (iCount <= 0)
{
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Nov 22, 2003
The following sql works great when the field for my main blog message is type nvarchar but doesn't work for text which I need to convert to.
select
a.id, b.textField
count(b.a_id) as myCount
from a left join b on a.id = b.a_id
group by a.id, b.textField
What other methods could i use to get "myCount" within one sql statement?
Thanks in advance, Jeff
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Jan 18, 2003
Two tables: CompanyPrices(CompanyID, ProductID, Price), CompanyRegion(CompanyID, Region)
ProductID is the primary key.
I want to get 10 smallest prices in each Region. In other words, I am looking for 10 cheapest prices in each region. So, if there are 20 regions, I should get excatly 200 rows having prices for products from 200 companies if there were at least 10 companies in each region.
I tried the follwoing, but get incorrect results.
select S1.Region, S1.Price from (select CompanyPrices.*, Region from CompanyPrices inner join CompanyRegion on CompanyPrices.CompanyID=CompanyRegion.CompanyID) S1 inner join
(select CompanyPrices.*, Region from CompanyPrices inner join CompanyRegion on CompanyPrices.CompanyID=CompanyRegion.CompanyID) S2 on S1.Region = S2.Region
group by S1.Region, S1.Price having count(*)<=10 order by S1.Region, S1.Price
However, if I want to get 10 cheapest products for each company, the above sql works by modifying the join condition. Instead of S1.Region = S2.Region , I use S1.CompanyID = S2.CompanyID and I get correct results for 10 cheapest products for each company.
select S1.CompanyID, S1.Price from (select CompanyPrices.*, Region from CompanyPrices inner join CompanyRegion on CompanyPrices.CompanyID=CompanyRegion.CompanyID) S1 inner join
(select CompanyPrices.*, Region from CompanyPrices inner join CompanyRegion on CompanyPrices.CompanyID=CompanyRegion.CompanyID) S2 on S1.CompanyID = S2.CompanyID
group by S1.CompanyID, S1.Price having count(*)<=10 order by S1.CompanyID, S1.Price
I am not sure what is wrong in the first query and why it does not work when the second one works. Could someone help in making the first query work to give me correct results?
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Jul 12, 2004
I am trying to get the below query to work and can't seem to get past this error. Not sure but everywhere I look I think my syntax is right. I am probably missing something obvious but I'm just back from vacation and trying to get in the swing of things. Any help would be appreciated.
Select Distinct(chadcd) as Adjustor, Count (Distinct chclno) as NumberOfCases, Count (Distinct chclno,chwkno)as NumberofClauses
from clmhdr
where chpddt = '20040630'
Group By chadcd
Order by Adjustor
Server: Msg 170, Level 15, State 1, Line 1
Line 1: Incorrect syntax near ',chwkno'.
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