I am trying to bind an Access database to a MSChart control in VB Net 2008. I have a test database populated with four fields SAMPLE-DateTime, Values-Number, MAX-Number and MIN-Number. I'd like to only display the rows that fall within a specific date range but I'm running into a problem when i try to execute the following command:
cmd = "SELECT SAMPLE,VALUES,MAX,MIN FROM TABLE1 WHERE [CHECK_DATE] BETWEEN 01/01/2009 AND 01/01/2011"
[Code] my issue is that now i need two cases, first i need a query that will return the date created and modified of the table and i also need to know if its possible to query a list of table names in the database ordered by date created but that have a certain thing in their names. for example the database contains the following tables: [Code] and what i need the query to return is the tables that contain "Data", settings and employees are for the other functions of the program. so the query should return the 4 data tables in order of date created. but i have no idea how to go about doing that in the query, does anyone know how this is done?
I'm receiving an error when trying to query a range of dates from a MS SQL DB in MVC Entity Framework. Unable to cast the type 'System.Boolean' to type 'System.Data.SqlTypes.SqlBoolean'. LINQ to Entities only supports casting Entity Data Model primitive types. This is our query:
I want to retrieve query from MS.Access database criteria is between some date range,but I get the following error when execute my reader:Syntax error in date in query expression 'D_ate BETWEEN # @DateFrom # AND # @DateTo #'.
Dim StrSQL As String StrSQL = "Select * from Pla_Comp Where D_ate BETWEEN # @DateFrom # AND # @DateTo #" myCommand = New OleDbCommand(strSQL, conn)
I am trying to bind an Access database to a MSChart control in VB Net 2008. I have a test database populated with four fields SAMPLE-DateTime, Values-Number, MAX-Number and MIN-Number. I'd like to only display the rows that fall within a specific date range but I'm running into a problem when i try to execute the following command:
Would it be possible to search a table, confining to a specific date range based on a date-time column, and get a count of the 10 most used words in a particular var-char column excluding a list of words?All in SQL?Currently I am pulling out the records that match and sorting through the contents outside of SQL, I would think where I can do it directly on the server it would be more efficient.(SQL 2008)
When user stores a record, I need to make sure dates don't overlap.My simple code checks date ranges within a specific record (e.g. user enters 9/16/2011 or 10/21/2011, I throw an exception.)But, on the slim chance a user gets creative (e.g. 10/14/2011 - 10/23/2011 or even 10/14/2011 to 11/16/2011), now they have circumvented my check.BTW, the user could enter 10/14/2011 to 10/23/2011 if they were editing the record that contained values 10/15/2011 - 10/22/2011.So, I'm trying to solve this riddle with a linq query. However, what I have isn't working exactly right.
UPDATE Nevermind about code not working. While trying to provide an example to expand on Miika's repsonse, I found my answer. So, giving credit to Miika for pointing me in the right direction and posting my working code below:
Here's my code:
Private Sub CheckForOverlap(myMonth As Messages.MyMonth) Dim am As New MyMonth() Dim amCollection As Messages.MyMonthCollection
I am getting the error:"Range variable 'sender' hides a variable in an enclosing block or a range variable previously defined in the query expression."for this
Imports System.Data.SqlClient Imports System.Linq Public Class Form1
[code]....
I can select any other item from the table without the error. "sender" has the same properties as "receiver" in the SQL table.
I am trying to get a list of dates from a provided StartDate and EndDate in my database, and use these dates to link to dates in a database (to display another variable on the y-axis of the chart) and to populate the x-axis of a chart (with the list of dates). Is it possible to get a list of dates in VB and pass them into a chart this way?
I have database in MS Access and this is Embedded to my program in VB2010 this is a Product Database now I try to create a reminder about my product expiration date
i just want to ask how can i populate a listview n vb.net that has a is limited by a date from and date to.i have a datetimepicker for start date and datetimepicker for end date and i want do list all the entry of my database in listview that is within the range of the start date and end date.
Right now i have a form in the VB where there are 2 combobox in it. user can choose from a range of products that comes together with some description and these are to be stored in a database table.. when i retrieve these data from another form in VB, i'm only able to retrieve the first product and it repeat e same product in my second textbox.
I have 2 datagrids. One to show Product information and another for Product purchase details entry. Both share the same dataset. The dataset (ds) is filled up with columns from 2 table
The problem is that: Showing from dataset or entering new records into the dataset is no problem, but am not able to save the modified dataset into DataBase. SqlCommandBuilder failed to generate the corresponding INSERT, UPDATE command as the dataset has multiple base tables.
I am looking for a free utility or way to protect my software by requiring a Product ID (Which will be created when a customer requests a paid license) to use the application after a demo version. Like most shareware apps.
Ex. the month of April, the number of days is only 1 to 30. What if the user will enter the date range of 4/1/2011 to 4/31/2011 in the mask textbox? I am using Mask textbox because datetimepicker will not accept empty value and it cannot be empty either.
I'm asking this because I encountered an error when querying in MS SQL SERVER 2005. It says "The conversion of char data type to smalldatetime data type resulted to in an out-of-range smalldatetime value." I thought it was the casting or conversion problem. I've observed the SQL when transacting and I found no difference with my code.
So then, I just figured it out that my date exceeded the number of days of the April month.
i am having problems getting my calendar to work, passing a start and end date for a rental car and displaying on the form the number of days chosen and the amount for the total. This is the first form problem I have done. I cannot see what I am doing wrong. It does not figure number of days and the amount just stays zero.
using System; using System.Collections.Generic; using System.ComponentModel; using System.Data;
I'm trying the fetch only the date within the current and return how many rows Dim dc as new dataclassesdatacontext dim q=from p in dc.worktime where p.name.equals(session("name") and p.date ).count what I should I put after "p.date" ? And if I want to search for the record which there are record that are insert five days earlier, how to do that ? use (datetime.now - 5) ?
Trying to work out if there's a nice way of doing this, preferably in Linq rather than loops, which is what I've done for now.
I want the number of days my Product is active between two dates.
Product has many ProductHistories, ProductHistory has values for DateActive and DateInactive. DateInactive can be null, and often will be, to show that this history is ongoing. Histories won't overlap.
I want to sum the maximum of my startDate or the ProductHistory's DateActive, and subtract that total from the sum of the minimum of endDate or ProductHistory's DateInactive (endDate by default if DateInactive has no value).
Worked example:
Get active number of active days between 2011-01-01 (1st Jan) and 2011-02-01 (1st Feb)
Histories:
Active 2010-12-25 : Inactive 2011-01-05 Active 2011-01-15 : Inactive 2011-01-20 Active 2011-01-25 : Inactive null
i have an app that pings all IP's on my network and then adds all alive hosts to a list, then my WMI query runs for all of them ips and gets some information. it all works fine except for when it gets to printers and switches/routers which obviously dont support WMI. Is there some way i can check if a device supports WMI and skip the query if it does not?
I have a datagrid view with some data in it. The first column (0) is called 'Date' and contains the dates I want to work with.What I would like is to be able to filter (only display) the data between a date range selected by the user using 'Datetimepicker1' and 'Datetimepicker2'
This is the code I have. its not right of course, but it may help explain what I'm trying to achieve, I wonder if someone could give me a pointer?
i dun know wats wrong wit my code.....i would like to search the date which located between 2 date time picker and make it goes into print preview.
Dim CustomerFound As Boolean = False Dim daterange As String daterange = "[Date of Booking] >=#" & Datetimepicker1.Text & "# AND [Date of Booking] <=#" &
I would like to select transaction id based from its creation date. All transactions are displayed on form load event on a datagrid. The select function should be executed on 2 datetimepicker (the first should be the start date, the last should be the end date).So there are three controls on a form, 2 datetimepicker and a datagrid. I managed to load all transactions into a datagrid, and managed to select/filter those transaction based on id, but not date.the table is called 'transaction_details', it contains 'transaction_id', 'transaction_date', and few other columns. transaction_id is the primary key.
I'm wanting to loop through a range of dates set by date time picker. This is my code and as the SD.Value.Date is 23/05/2010 it shows Sunday for me. However on the Loop it keeps showing Sunday and Never stops.
Dim SD As Date = StartSearchDate.Value.Date Dim ED As Date = EndSearchDate.Value.Date Do While SD.Date <= ED.Date MsgBox(SD.DayOfWeek.ToString) SD.Date.AddDays(1) Loop
