Getting The Highest Number From A Field (Row) In A Database?
May 8, 2011
I created a code that inserts a number into a row every time someone submits a form.I am able to read the data back to the form using a loop.My confusion is I would like to get the highest number from the data field(column)Lets say the Field(column) has five numbers from 1 to 5.How do I get the highest number?I was looking at using a loop to go through the field and bring out the highest number, but should I use an array?
I have a table named as table1 with IDNo column and the ID numbers starts with HL, EL, EE, HE plus the year and a four digits. [code]On form load, the user will select from radio button which category he/she would like to work on, whether HL, EL, EE, HE. Let's say that the user selected HL, I would like to get the highest number in table1 and extract the last 4 digits truncating any zero digit starting from the left side and update table2's sequence column with the extracted value.
What is the right way to find Highest decimal number out of 10 different numbers(or more)? I made this code below, and surprisingly it doesn�t work every time! All numbers are declared as decimals but some times 0.02 is a higher number then 0.11!
If n2 > (n3 And n4 And n5 And n6 And n7 And n8 And n9) Then TextBox11.Text = n2 End If
I have a file which has numeric values like [code]What would be the best way to display the highest number in a textbox +1?I have the following coding but to be honest it just keeps showing random numbers in the textbox.[code]Also what would you be the best way to append to the file? I have the following coding to append to the last line.[code]
I know how to get Total, Average, Highest and Lower number from using input boxes and so on, but how do you get them from within a listbox?I kno the format of the code, I'm just lost in how to get them from a listbox...I just need a few hints.
I am new to using VB2010 (and coding in general). Also brand new to these forums . Okay so I am making a program that: allows the user enter the number of customers served for each of 12 months into an array. The application should calculate and display the following statistics: total number of customers for the year, the average monthly number of customers, and the months with the highest and lowest numbers of customers. Use inputBox to get user input. Do not accept non-numeric or negative numbers.
The problem that I am having is that I do not know how to display which was the best and worst month. I imagine I need something that targets the highest/lowest number and finds the text in the corresponding index but I'm not sure how to do this.
I don't know if I worded this properly, but I have a mdb query that I display in a Datagrid on my form. The first column is TransactionNumber, which is the primary key and a running total (ex. RackingTransactionKey=RackingTransactionKey + 1). What I need to do is when the form is opened, find the highest (last) TransactionNumber from the query or Datagrid and assign it to a variable (RackingTransactionKey), so I can can update it (+1), therefore generating a unique number so I can add data to the query.
Create a program where the user can find the highest number and the smallest number from a list of values It needs to operate as follows: Enter a value (number) in the TextBox and click on a button [Add to list]. Once this is done, the program analyzes if the number is the highest entered or the smallest. To view which is the smallest and largest, a second button [highest and lowest] will populate fields (texboxes) with highest and lowest numbers. I've attached an image of what the program should look like.
I need a way to detect which one is the largest, and which is the smallest, and assign them to a variable.If SideA is the largest, then it is variable C, and SideB is the smallest, so its variable A, leaving SideC as variable B
I got a problem with dataview that get data from datatabel (Col1 : ID,Col2: Time) and I'm sorting by Time in desc ... when the values for example {40.21,80.21,70.25,25.2} the dataview sorting them as I need but when one of values goes above 100 for example {40.21,80.21,100.25,25.2} the dataview always sort the highest number is the buttom, I don't know why ..
This is a sample code
Dim dt As New DataTable dt.Columns.Add("ID") dt.Columns.Add("Time") [CODE]...
There are lots of questions about this but I've not been able to solve my problem using the answers to any of them (after many, many attempts..)
I'm working in vb.net creating an asp.net web application. I have an SqlDataSource and a GridView on my page.
I want to change the DoNotMail boolean value represented by a Gridview checkbox and automatically update in the database if the checkbox is checked from 0 (False, Will Mail) to 1 (True, Won't Mail) here is the code I used. [code]...
is it possible to do a two way sync on the entire gridview when the user hits a button so you don't have to do an update every time a row is changed? because the user might check the box and then check another box then uncheck a box and it would be a lot of updates...
I created a local Database in VB2008 with 4 tables, the problem is that I have a textbox in one table and a combobox in other table and I want that the information that I put in textbox appear after in combobox from the other table... that's possible?
Table: Filmes ... Field: NomeTextBox Table: Tempo de Aluguer ... Field: Nome_FilmeComboBox
Dim query as String = "Select * from openquery (devbook, 'SELECT wb.arrival_time FROM web_bookings wb ')"All I need is to convert my arrival_time into a datetime field in the query
I am creating a database in VB.NET for a movie rental place. I currently have three forms;
Member Information DVD Information Borrow DVDs
What I would like to do is when I am viewing a member's details, if I click a button 'Borrow DVD for Member', the member's ID number transfers over to the Borrow DVDs table in the Member ID which also would hold some information from the DVD Information table, but I'm sure if i can figure out how to do this firstly, I will be able to apply the same rule and work it out myself.I have been trying to use a query statement like;
INSERT INTO [Borrow DVDs].[Member ID] [IN goodstuffvideos.mdb] SELECT [Member Information].[Member ID] FROM [Member Information]
but that has been coming up with error codes and completely not working.
Borrow DVDs table fields are: Borrow ID, Member ID, DVD ID Number, Hiring Fee, Borrowing Limit?
DVD Information table fields are: DVD ID Number, Title, Rating, Hiring Fee, Borrowing Limit Member?
Information table fields are: Member ID, Family Name, Given Name, Address, Town/Suburb, Postcode?
The error coming up is; Error in INSERT statement. Unable to parse query text.And under that it says The query cannot be represented graphically in the Diagram and Criteria Pane.
Probably a simple question for most of you. I'm putting members of a group into a SQL Database so we can better manage attendance and 'points' that they earn for doing work. I've written the program in VB and have the SQL server running fine. However, I have created a separate table to handle the points and have marked the relationship between the table - the column is named 'PointID', and should be unique for each person. When I add a new user to the database, I want it to automatically assign a value to that without me having to do anything extra beyond pressing save. From this PointID, it should identify the user and it will bring up the person's points.
how do i get the number of years this person hs had licence. so basically dim age1 = current year - (dob - license_age)how do i find out which year he got his license based on the above two fields?
I am writing a program that takes a SSN into a number field.Issue is when a SSN is entered with a leading 0. Ex. 012-34-5678 The zero is cut off and turns it into an 8 byte field, which is not good for SSN obviously.What can I do to prevent this from happening?
so below is my code. I am trying to get the autonumber generated in newdb into txtcallid field. the error i get is that the field is not unique. What i am trying to do is to get the form to fill the db witha new blank record, assign the auto number and then display that number with the blank record info in my form. I will be making it so that the data must be changed before saving so that the form will not be blank save for when it is loaded.
Imports System.Data.OleDb Imports ChessyFunk1._5._1.ADODB Public Class frmNewCall
i am using vb/vb.net and the database is visual foxpro 6.0 then i want to create the tables from the application using sql statement.i need to add the number field into the table. i can not add the number field in the tableres.open "CREATE TABLE Customer ( CustName char(50), CustId int(2))",conXavier
I got a Mysql sql database for my project. The id field is set as auto increment, which seems to function correctly. But on the form in my text field and datagrid i see a negative number, while in the database its a postitive number. I do not really plan to use the id field right now, but when i do it might cause some problems.
Anybody know why it would show as a negative number on the form(textbox/gridview) and as a positive in the actual database?
I have a txtbox(for barcode).. if i input a item number in that txtbox and if that number will match in your database, the other information(shall we say, product type, item ID, etc..) will display in my other txtboxes..
