Get Row Count From SELECT Query?
Jul 16, 2010
I'm trying to get a simple count of rows meeting some criteria. The value returned does not coincide with the correct number of rows when running the same query in Management Studio (SQL 2005)
vb.net
Public Function RowsAffectedCount() As Integer
Dim result As Integer = 0
[code]....
'result' always returns 1, but I have 3 records meeting that criteria in the database. Been staring at the code for a couple hours now and can't figure it out... I just need to know if the Count of rows returned from a SELECT statement is greater than 1 (at least two records).
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Jul 23, 2011
I want to select to multiple sql tables using select query in vb.net..I have 2columns in sql table..I have tried this query.. But i'm getting error.
TextBox11.Text = Val(27)
cmd = New SqlCommand("SELECT outside,power FROM vijay21 INNER JOIN vijay22 ON vijay21.outside=vijay22.outside WHERE outside BETWEEN " & Val(TextBox11.Text) & " AND " &
[code].....
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Apr 16, 2009
I am using VB2005 ASP/VB. I have a Gridview placed on a web form which is popluated by a query based on user input.select * from view_main where initials = ddlfilter.textThis works fine. However I want to display a realtime record count based on that query and dump the info in a label called 'recordcount' which appears at the bottom of the grid.
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Jun 8, 2011
My problem is i don't know how to query TOP ORDER PROD using COUNT,AVG...
-LIST OF ORDER'S-
ITEM CODE | ITEM NAME |
4323 PROD A
4323 PROD A
4323 PROD A
i don't know how display TOP ORDER PROD. using count and average
[code]....
-TOP ODER PRODUCT-
ITEM CODE | ITEM NAME | TOTAL NO. OF ORDERS | PERCENTAGE RATE
4323 PROD A 5 4.23%
2345 PROD B 3 2.33%
3462 PROD C 2 1.56%
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Jan 12, 2012
I want to do a SQL SELECT COUNT in VB .NET to an Access DB. I can get the code to work using a text fields and text criteria but if I use a date field and Date criteria it returns 0 when there are some 47 records that it should count.
Dim Results As String
Dim InvDT As String = Date.Today
InvDT = "#" & InvDT & "#"
Dim strCnn As String = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=S:MainData.mdb" connection string to your DB'
[Code] .....
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Dec 2, 2010
HI would like to count all the records in my query below and output the results to a text box. [code]...
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Mar 6, 2012
I'm currently doing a project which requires me to count a specific number of records who have a certain checkbox marked as true, passed questionnaire, it then needs to display this result in a textbox when the form is loaded. However i am having problems displaying the result in the textbox, this is my current code.
Imports System.Data
Imports System.Data.OleDb
Public Class frmCandidateGathering
[code]....
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Jan 25, 2012
What I have right now is this:
Dim users = From users In tempTable _
Distinct Select users.Item("s_userid")
Dim usersCount As Integer = users.Count
But I pretty sure I shouldn't have to do that. I should be able to get the count in/from that first linq query.
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Apr 1, 2009
When I type in cntrows. I get all my table variables except the one I want which is TotalComments. How do I return the Count from my scalar query? I have a Table Adapter named :
[Code]...
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Feb 24, 2009
how do i add a count down (eg, 20secs) and unless the user clicks something, then "Yes" is automatically selected? [code]
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May 25, 2011
My tables sectionName column has an existing value. I want to update its Adviser column but my select count always evaluate to false. I want to check if my table's SectionName column record matches the selected value of my CboSectionName. if there is a match then i'll check if such section has an adviser already. If there is an adviser already, then ask the user if he/she wants to change the adviser of that section. If he/she wants to change/update the adviser then update it else exit. however, if there is no adviser yet then assign an adviser to column adviser from cboAdviser. If no record yet in table's SectionName column then prompt the user that there is no section name yet, then exit. I have been debugging the code below for hours now but I can seem to locate why my sql count always resulted to false. [Code]
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Aug 21, 2010
I've tried to write a code which will count the orders for each person in my users table. This is what I have but it's not working. What is wrong?
vb.net
Dim command As New SqlClient.SqlCommand("SELECT *, COUNT(Orders.Username) FROM Users LEFT OUTER JOIN Orders ON Users.Username = Orders.IssuedBy ORDER BY Users.PersonName")
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Dec 8, 2010
I'd take both C# and VB.NET suggestion.I'm using LINQ to query data. I'm trying to query the parent and count the child tags.Here's my Tags table column:
TagId (int primary)
TagName
ParentId (int Allow NULL referred to TagId column)
Here's some sample data:
[Code]...
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Apr 17, 2012
I have a the following Class structure. Company > List(of Departments) > List(of Employees) I want to Query a Company to find out if it has a department of the following name and a Employee in that department with the following ID! How could I query this. The way I have the code it expect to return one department so I have it doing
[Code]...
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Aug 10, 2010
I'm using VB.NET, and I'm trying to write a program for the company I work for, that interacts with a database designed for logging web site email submissions (After a user fills out a form for a item request or comment sheet, the email the form sends gets logged so we can more easily see which site gets spammed more, and we keep a record of the actual spam). My program mainly just makes the data easier to read. However, I want to add a feature so that a user can click a button, then an automatic query will take place so that all the preserved URLs in the database are tested, then a form will appear that states something along the lines of: These Sites Sent This Number of Emails
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Feb 28, 2012
I have the following SQL query to return all Customers who have no OrderLines with no Parts assigned - i.e. I only want the customers within which every order line of every order has no parts assigned - (in the actual problem I am dealing with a different domain but have translated to customers/orders to illustrate the problem)
SELECT c.Customer_PK
FROM Customers c
INNER JOIN Orders o[code].....
This works but generates less than optimal SQL - it is doing a subquery for Count on each row of the customers query rather than using Group By and Having. I tried making the LINQ Group By syntax work but it kept putting the filter as a WHERE not a HAVING clause.Edit in response to Answers below: I am accepting JamieSee's answer as it addresses the stated problem, even though it does not produce the GROUP BY HAVING query I originally had.I am a VB developer so I have had a crack translating your code to VB, this is the closest I got to but it does not quite produce the desired output:
Dim qry = From c In context.Customers
Group Join o In context.Orders On c.Customer_PK Equals o.Customer_FK
Into joinedOrders = Group[cod].....
The problem I had is that I have to push "jl" into the Group By "Key" so I can reference it from the Where clause, otherwise the compiler cannot see that variable or any of the other variables appearing before the Group By clause.With the filter as specified I get all customers where at least one order has lines with no parts rather than only customers with no parts in any order.
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Sep 29, 2011
So I'm writing a query as follows:
Dim assSummary = From a In db.Assignments
Join ur In db.UserRegions
On a.Origin.ID Equals ur.Region.ID
[code]....
In the controller I can return the data easily as follows:
For Each c In assSummary
MsgBox(c.Description & " " & c.AssCount)
Next
If I pass the object through to the view using Viewdata("assSummary") = assSummary, how do I display the data? Every method I've tried results in messages about 'VB$AnonymousType_7(Of Integer,String) and I don't know how to retrieve the data from the anonymous type.
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Apr 21, 2009
I'm trying to access the Count Property on the array of rows returned by the datatables select method, this is after converting the Web Project to 3.5
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Mar 16, 2009
I have an ado.net statement I want to convert to use NHibernate:
Dim sql As New StringBuilder()
sql.AppendLine("SELECT r.RoleId, r.RoleName ")
sql.AppendLine("FROM dbo.aspnet_Roles r ")
[code]...
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Nov 20, 2011
I have pulled information from a database into a datatable (dtCustomerInfo) then I expanded on the columns by processing the data and I can display this in a datagridview without any problem. However, the data is in detail and I want to ultimately summarize by customer name.The code below has a commented sql statement that is the statement I ultimately want but it is not working. However, the idea is that I want to Select from one datatable into another but run aggregate sum on several columns so that I will get one record per customer showing totals for each column.So I broke it down to just pull all data possible into the second table.[code]I do know the grouping in the current select * statement does nothing but my issue is more that the columns do not show up.
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Feb 21, 2011
On an SQL query I have. I have the select query working fine but according to the result I need to set the column of a table to 0. I have the following Select query:
CODE:
So where the CommissionCalculator SetUp > 0 I want it to Update the CommissionStructure SetUp column to 0. I was thinking I might need an IF statement but I dont know how to work with them in SQL.
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Jan 19, 2009
I'm tying myself in knots with AND OR NOT qualifyers to return all rows having two different items. From a column headed 'Instrument' I want to retun 'CELLO' and 'VIOLIN' Where am I going wrong with the following?
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Sep 18, 2009
class:
Public Sub insetTotalPaidAmt(ByVal dtSDate As Date)
Dim comm As OleDbCommand
Try
strQry = "INSERT INTO rpt_Paid_Amt(ST_ID,ST_PAY_AMT,ST_DIS_AMT) " & _
"SELECT S.ST_ID,SUM(P.PAY_AMOUNT),SUM(P.PAY_DIS) " & _
[Code]...
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Mar 14, 2012
how to select multiple table in vb2010? i trying to create a login so i need to retrieve the data in 3 different tables in one database i have a code but not work.[code]
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Jun 21, 2010
Linq to SQL query to Select the maximum "MeanWindSpeed" value? The database name is "WeatherArchives" The TableName is "TblValues" The Column is "MeanWindSpeed" And Also, I would like to have a query to get me the Max "MeanWindSpeed" in each year,
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Feb 6, 2010
i have a project which is room scheduling. i'm having a problem on how to make my query to be able to select the available rooms for the givin time start and time end.
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Mar 30, 2010
I am trying to link to a Access database at runtime using a SELECT FROM WHERE query, which I can do but.......
with the WHERE part I want to select several conditions, 4 actually and it is not working, what am I doing wrong?
Here is my code,
Dim con As OleDbConnection = New OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;Data Source=V:GYMDBFLineProdSanderProduction.mdb")
[Code]....
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Jun 7, 2011
Public Shared Function getrealrequests(ByVal itemname1 As String) As ArrayList
Dim sqlStr As String = "data source=localhost;initial catalog=Customers;integrated security = true"
Dim dbRecords As ArrayList = New ArrayList
Dim dbConn As SqlConnection = New SqlConnection(sqlStr)
[Code] .....
I'm trying to pass the value of 'itemname1' to the select query. What's the correct syntax to get it to work?
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Jan 4, 2012
I've a collection with the data like this.[code]...
how can select the distinct data using linq?
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Nov 2, 2009
Dim MyQuery = From c In xdoc.Descendants() _
Where c.Attribute(OriginY) IsNot Nothing _
Order By Val(c.Attribute(OriginY).Value), Val(c.Attribute(OriginX).Value) _
Select c.Attribute(UniStr)
Right above you can see my First! linq attempt! And here comes my first question.
How can i select more than one column in a linq query in vb.net?
For example... Select c.Attribute(UniStr) AND c.Attribute(OriginY)
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