I have two tables. Houses and Guests. The guests are the people who visited the houses tied by the HouseNo.
I want to list all of the houses which has HouseName, Address, HouseNo. Then I want to show a column for the number of guests who visited it.
The Guest table has GuestName and HouseNo. How can I do a select on all houses and then show a column of COUNT(GuestName) for all the guests with the HouseNo matching each row?
Dear MS SQL Experts,I have to get the number of datasets within several tables in my MSSQL2000 SP4 database.Beyond these tables is one table with about 13 million entries.If I perform a "select count(*) from table" it takes about 1-2 min toperform that task.Since I know other databases like MySQL which take less than 1 sec forthe same taskI'm wondering whether I have a bug in my software or whether there areother mechanisms to get the number of datasets for tables or the numberof datasets within the whole database.Can you give me some hints ?Best regards,Daniel Wetzler
View 5 Replies View RelatedHi friends,
I have problem when retrieving a result from SELECT COUNT(*) FROM [Table] from an Oracle database.
When I try to put the result (single row) in a variable I get the following error message.
[Execute SQL Task] Error: An error occurred while assigning a value to variable "RowsSource": "Unsupported data type on result set binding RowsSource.".
Pls help me
Mahe
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!
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 ')
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]....
SQL 2000I have a table with 5,100,000 rows.The table has three indices.The PK is a clustered index and has 5,000,000 rows - no otherconstraints.The second index has a unique constraint and has 4,950,000 rows.The third index has no constraints and has 4,950,000 rows.Why the row count difference ?Thanks,Me.
View 5 Replies View Related Hello, I would like to count the number of items in a table. I used the following code:1 Dim Comments As Integer
2 Dim cnn As New SqlConnection(ConfigurationManager.ConnectionStrings("ConnectionString1").ToString())
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()
But this only gives me the error message "ExecuteScalar: Connection property has not been initialized." Can anyone help me with this? Thanks
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
I have sql statement like "select count(*) from table where id = 1", and I want to assign the result to label.text. How do I do that? Thanks.
View 7 Replies View RelatedHello,
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
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
Get_Record_Count = tbl.Rows.Count.ToString
tbl.Dispose()
End Function
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?
Thank you!
I am having trouble creating a query which will list schools with ALL their Admission = Null. For example, if at least one record is not null, don't list it, but as long as ALL the records have Admission = Null, then list it. I hope that's clear. Thanks!
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 |
Results:
SchoolName
------------
East School
Is there a method to convert "Select * From Table" to "Select field1,field2,...fieldn From Table" ?
Thanks
I need to write a select statement that take the upper table and select the lower table.
View 3 Replies View RelatedHello,
I hope someone can answer this, I'm not even sure where to start looking for documentation on this. The SQL query I'm referencing is included at the bottom of this post.
I have a query with 3 select statements joined together like tables. It works great, except for the fact that I need to declare a variable and make it a table within two of those 3. The example is below. You'll see that I have three select statements made into tables A, B, and C, and that table A has a variable @years, which is a table.
This works when I just run table A by itself, but when I execute the entire query, I get an error about the "declare" keyword, and then some other errors near the word "as" and the ")" character. These are some of those errors that I find pretty meaningless that just mean I've really thrown something off.
So, am I not allowed to declare a variable within these SELECT tables that I'm creating and joining?
Thanks in advance,
Andy
Select * from
(
declare @years table (years int);
insert into @years
select
CASE
WHEN month(getdate()) in (1) THEN year(getdate())-1
WHEN month(getdate()) in (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12) THEN year(getdate())
END
select
u.fullname
, sum(tx.Dm_Time) LastMonthBillhours
, sum(tx.Dm_Time)/((select dm_billabledays from dm_billabledays where Dm_Month = Month(GetDate()))*8) lasmosbillingpercentage
from
Dm_TimeEntry tx
join
systemuserbase u
on
(tx.owninguser = u.systemuserid)
where
Month(tx.Dm_Date) = Month(getdate())-1
and
year(dm_date) = (select years from @years)
and tx.dm_billable = 1
group by u.fullname
) as A
left outer join
(select
u.FullName
, sum(tx.Dm_Time) Billhours
, ((sum(tx.Dm_Time))
/
((day(getdate()) * ((5.0)/(7.0))) * 8)) perc
from
Dm_TimeEntry tx
join
systemuserbase u
on
(tx.owninguser = u.systemuserid)
where
tx.Dm_Billable = '1'
and
month(tx.Dm_Date) = month(GetDate())
and
year(tx.Dm_Date) = year(GetDate())
group by u.fullname) as B
on
A.Fullname = B.Fullname
Left Outer Join
(
select
u.fullname
, sum(tx.Dm_Time) TwomosagoBillhours
, sum(tx.Dm_Time)/((select dm_billabledays from dm_billabledays where Dm_Month = Month(GetDate()))*8) twomosagobillingpercentage
from
Dm_TimeEntry tx
join
systemuserbase u
on
(tx.owninguser = u.systemuserid)
where
Month(tx.Dm_Date) = Month(getdate())-2
group by u.fullname
) as C
on
A.Fullname = C.Fullname
I have a view that I want to find all the rows that have a matching itemid and have more than 3 rows in them and group them by the itemid.
I am not quite sure how to do this.
Any ideas?
~mike~
Hello,We have a database filled with local restaurants for a directory. What I'm trying to do is display a list of all the cuisines and the number of restaurants who serve that type of cuisine in parentheses. It should look like the example below:American (12)Chinese (3)Italian (5)...Here are the tables with only the relevant columns: restaurants---------------...cuisine_id... cuisines-----------cuisine_idcuisine_name... So basically I want to pull all the names from the cuisines table and then the restaurant count from the restaurants table. The only way I can think of doing that is to grab the cuisine_ids, put them in an array and then use that in a loop to get the count from the restaurants table. That's not very elegant. Is there a better way?Thank you
View 3 Replies View RelatedWhen 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?
SELECT itemName, itemName +' - '+ COUNT(itemName) AS itemNameCount FROM tblItems GROUP BY itemName
ERROR: Conversion failed when converting the nvarchar value 'Spark Plug - ' to data type int.
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
Con.Open()
reader = Cmd.ExecuteReader()Dim NumMetr As Integer = Val(reader("Expr1"))
reader.Close()
Con.Close()
I am getting an error that that's no data in the table.
Any suggestions?
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
View 4 Replies View RelatedPlz help me out making a SELECT for my imagegallery.
Table one: [albums] contains the fields [albumId], [albumTitle] and [albumDesc] - the name says it all.
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]
To extract the albums something like this works: SELECT * FROM [albums] ORDER BY [albumTitle]
To count the images in a sertain album this works: SELECT COUNT(*) AS imagesCount WHERE [albumId] = ...the albumId from the album-select
And to retrieve a random imagePath this works fine: SELECT TOP 1 [imagePath] FROM [images] WHERE [imageId] = NEWID()
-But how do i combine them so that i can retrieve the data in one request? Suppose theres going to be some JOIN and group but i cant figure it out. Please help me out.
Hello
I want to get the COUNT of
SELECT MAX(id) AS ids, Name, Version, Pack, Serial
FROM Products
GROUP BY Name, Version, Pack, Serial
SELECT COUNT(MAX(id) AS ids) AS countIds, Name, Version, Pack, Serial
FROM Products
GROUP BY Name, Version, Pack, Serial
doesnt work
thank you
helloi want to do only one query for :SELECT DISTINCT Name FROM UsersSELECT COUNT(Name) AS Names FROM Users WHERE (Name LIKE 'xxx')something like :SELECT Name, COUNT(Name) AS Names FROM Users WHERE Name IN (SELECT DISTINCT Name FROM Users)i must get :Joe 23julie 17.....thank you
View 3 Replies View RelatedI'm ashamed! I'm stuck on something so simple....
I want to return a value of 1 if count(*)>0 AND 0 if COUNT(*) is 0
I have currently have this below, but isn't there a better way?
SELECT cnt=CASE WHEN (SELECT COUNT(*) FROM MyTable)>0 THEN 1 ELSE 0 END
(The full code is rather more complex than this, but the problem is the same)
Any suggestions welcome.
Cheers!
Mark
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?
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))
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!
View 1 Replies View RelatedCould 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
View 2 Replies View RelatedHI,
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
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
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