Perform An Sql Query Onto A DataTable Not A Database Table?
Dec 19, 2009How do I perform an sql query onto a DataTable not a Database table?
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Database Table Attributes - Query A List Of Table Names In The Database Ordered By Date Created
Jan 22, 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?
View 6 RepliesConvert A JSON Constructed From Table To A Datatable For An Update Query?
Jan 29, 2011I would like to send json data from a HTML table to the ASP.NET code-behind and update the data in and SQL Server database. The code and JSON for the TableProductToUpdate() is below.
function UpdateProductTable() {
$.ajax({
type: "POST",
[code].....
Correct SQL Query: Error "Microsoft Jet Database Engine Cannot Find The Input Table Or Query 'IF'?
Aug 27, 2010The database:
"ID (Primary key)" | "Title"
0 | "title1"
[code].....
OK, before adding values to database, we should check if a row exists with this values :)TO do this, creating a Stored Procedure is a best way to deal with the database fastly.So... The problem now is, at the runtime, Miss OleDB throw this error:Microsoft Jet database engine cannot find the input table or query 'IF
Correct This SQL Query: Error "Microsoft Jet Database Engine Cannot Find The Input Table Or Query 'IF'?
May 29, 2009i should say hi experts :D . Help me with this pretty code :)
The database:
"ID (Primary key)" | "Title"
0 | "title1"
[code].....
OK, before adding values to database, we should check if a row exists with this values :)TO do this, creating a Stored Procedure is a best way to deal with the database fastly.So... The problem now is, at the runtime, Miss OleDB throw this error:Microsoft Jet database engine cannot find the input table or query 'IF
Loading Table In Datatable From Database?
Dec 30, 2009I am using Dynamic Textboxes. I am Loading table in Datatable from Database. From that Datatable i am naming the textboxes. After entering some values in the textboxes during runtime, i want that values to be added to the database. So i Coded as below. But i am getting errors as value of type '1-dimensional array of System.Windows.Forms.Control' cannot be converted to 'System.Windows.Forms.TextBox'.Here's my coding
Private Sub btn_click(ByVal sender As Object, ByVal e As System.EventArgs)
[Code]...
Appending Table To A Database From DataTable Object
Jun 1, 2011I am trying to convert some old VB6 code into VB.NET. The old code used DAO and now I am trying to replicate it in ADO.NET/OleDB. I have made some advances (I think...) but now I can't figure out how to add the DataTable object into the database.[code]So instead of the TableDef, I am taking the data from the same sheet and putting it in a DataTable object (dt). I hope this is correct so far. Now my question is how to replicate the m_db.TableDefs.Append td line from above.
View 1 RepliesAdd A Row To The Database Table Using DataTable.AddRow(DataRow)
Nov 5, 2010In a web applicaion using vb.net as the code behind. I have created a DataSet (hdar) in the designer with a data table and table adapter (AccessRequests). I am trying to add a row to the database table using datatable.add row
[Code]...
Save Datatable Content Into Sql Database Table?
Mar 15, 2012I'm creating an small application where I search from the databse table tems and add the result line to a datarow of my datatable "dt", I the set the datagridviewe datatsource to this same dt.How can I save this dt content into another table of the same database.I'm not ussing stored procedures and dont understand much of parameters.
CODE
Dim cs As New SqlConnection("Data Source=myserver;Initial Catalog=mydatabase;Integrated Security=True")
Dim da As New SqlDataAdapter
Dim ds As New DataSet("Chosed")
[code]....
Asp.net - Insert Datatable Into A Database Table From A Stored Procedure?
Feb 29, 2012I have a datatable with some rows I need to insert that datatable in to database using a stored procedure.
For Each row As DataRow In dt.Rows
cmd.Parameters.Add(New MySqlParameter("@DOWNLOAD_ID", dt.Rows(0)("DOWNLOAD_ID").ToString()))
cmd.Parameters.Add(New MySqlParameter("@FINALY_FIELDCODE", dt.Rows(0)("FINALY_FIELDCODE").ToString().Replace("|", "").ToString()))[code]....
When i do this I got an exception {"Parameter '@DOWNLOAD_ID' has already been defined."} How to get rid of this exception and can we insert the datatable with out for loop.
Database - Insert A DataTable With Existing Key To A SQL Server Table
Mar 18, 2010I am working with VB.NET.. i have a DataTable called "QUESTION", containing 3 fields:
QuestionNumber (unique integer key)
QuestionText
QuestionType
In my SQL Server database I created a Table called "QUESTION" with the same fields.
QuestionNumber is defined as integer unique key, auto increment
Now, when i make a bulk copy to insert the DataTable into the SQL Server, the database overwrites my QuestionNumber from the DataTable and generates new ones (starting from 1 increment 1).
How do i have to change my database setup, that the original QuestionNumbers are copied into the database?
Save DataTable Structure And Data Into A Database Table?
Mar 10, 2010How to Save DataTable Structure And Data Into A Datatbase Table..
View 7 RepliesDB/Reporting :: Transfer The Data From A DataTable To An Access Database Table?
Apr 29, 2009Source: DataTable
Destination: Access Database Table
I should mention that the DataTable contains data resulted by an SQL SELECT query and it's not related to the "targeted" Access Database Table.
Insert Changed Data From One DataTable Into A Database Table In A Different DataSet
Oct 26, 2011I want to track changes in an application. So I've made a copy of the main table in that application, and am accessing both tables in the application using two separate datasets.
My plan was to use the HasChanges method of the main DataSet to get changed rows and then insert those into the copy table. When I run the code I get an error:
A first chance exception of type 'System.InvalidCastException' occurred in MyApp.exe
Unable to cast object of type 'MainDataTable' to type 'MainAuditDataTable'.
Here's the code:
If Me.DataSet3.HasChanges Then
' 'look for each row that has changes, not new rows
' 'insert that row into the auditing table
[Code].....
Perform An Aggregation On A DataTable With Linq In .net
Dec 22, 2009I wish to output an IEnumerable type (dictionary(of T) would be perfect, otherwise a datatable would be acceptable) that provides an aggregation of the data within the datatable.In SQL I would write the query as such: select groupByColumn, sum(someNumber) from myTable group by groupByColumn
In VB.NET the closest I have got to this (achieved using information here) is: dt is a datatable containing two columns, referred to by index in p below Dim q = From p In dt Group p By p(0) Into Sum(p(1)) Select p(0), SumOfNumber = Sum
However I receive error: "Range variable name can be inferred only from a simple or qualified name with no arguments." on the p(0) element. Therefore my question is as follows:How can I resolve this error? How do I process the result (q) as an IEnumerable type? Life isn't made any easier because I'm using Linq in unfamiliar vb.net. Many examples are in C#, but I haven't really come across anything suitable even in C#.
Save A Query From Datagridview Back To Database Table?
Mar 11, 2010Dim da2 As OleDb.OleDbDataAdapter
[code]...
Save A Query From Datagridview Back To The Database Table?
Mar 11, 2010Dim da2 As OleDb.OleDbDataAdapter
Dim cols As Integer = Attendance_QueryDataGridView.ColumnCount
Dim rows As Integer = Attendance_QueryDataGridView.Rows.Count
[code].....
Use The Combo Box Value As A Table Name In Access Database Query Statement?
May 1, 2012[Code]...
how can get the name of the table that = to the name of the combobox1 when i select it.
[Code]...
How To Perform A DNS Query
Sep 16, 2009I've been reading the official DNS RFC [URL].. and looking at articles like this that explain how DNS query packets are structured [URL].. but I'm having a hard time trying to combine the two and actually get to a point where I know what to do
Basically I know that I need to use UDP to send the query and there is only one type of query I actually want to perform - an MX lookup. So I'm hoping that means I dont need to account for a lot of things that anyone creating a complete DNS Resolver would need to implement.
The only experience I have with network communication like this is with protocols that are text based (and use TCP, but I dont think that makes much difference here, if anything UDP should be easier). DNS however is binary based and I just cant figure out how I would know what bytes to send down the wire for a specific MX query..
VS 2010 Perform Row Delete To Datatable Which Is A Datasource To The Grid?
May 11, 2011I want to know how to perform row delete to datatable which is a datasource to the grid.
In details: I have a datagridview (dg) and its datasource is set to dtItem. User will select some rows in dg and press 'delete' button.
dg.DataSource = dtItem;
I will perform a loop and delete the records. Here is the code eg:
foreach (DataGridViewRow drw in dg.Rows)
{
if (drw.Selected)
[Code]....
The problem is it didn't delete correctly. If user selects row index 0 and 1 in dg and delete it, it will delete the first one correctly and then finished cuz no more row is selected in next gridviewrow.
I tried google and didn't find what I want. may be because i don't know the correct keywords I should use to search.
SQL Select From A Table In An Oracle Database, And Show Results Of Query In VB Application
May 14, 2009I want to (SQL) select from a table in an Oracle database, and show the results of the query in the VB application, in a Excel like manner (rows, columns, selectable, etc.). Or in a SQL developer manner. How can I do that? Browsed through a lot of tutorials and howtos on the internet, did not get anywhere. I think (and correct me if I am wrong) that it's gotta be something with DataGridView. But I don't know how to create and populate a datatable with the result of as Select statement, how to create a dataset.
View 3 RepliesLoading The Contents Of DataTable Adapter Query Into A Datatable?
Nov 18, 2009load the contents of a query from a dataTable Adapter into a datatable?
View 2 RepliesCreated A SELECT FROM WHERE Query To Perform A Search
Jun 21, 2010I have created a SELECT FROM WHERE query to perform a search here is my code:
SELECT EmployeeID, DepartmentID, Forename, Surname, Role, Email, Telephone, Extension, Mobile, Photo FROM Employees
WHERE (Forename = ? or ? = '') and (Surname = ? or ? = '') and (Role = ? or ? = '')
I have then put the folllowing code to rung the query within my form:
Me.EmployeesTableAdapter.FillByName(Me.myDataSet.Employees, Me.ForenameTextBox.Text, Me.ForenameTextBox.Text, Me.SurnameTextBox.Text, Me.SurnameTextBox.Text, Me.RoleTextBox.Text, Me.RoleTextBox.Text)
When i search by forename or surname it works fine but when i search by role i get this error..oledbException occured No value given for one or more required parameters.
Using Keys To Perform Data Entry Or Query
Oct 26, 2011In my company we use Oracle Applications. Almoust every form in these applications have a common behaviour, which is:
Whenever the forms is opened one can immediately start entering data but one can also press F7, which makes the form to enter in query-mode. You can then fill one or more forms fileds with the data you are searching for and press F8, which executes the query and returns the data into the form. The query mode can be interrupted by pressing Ctrl+Q, returning to data entry mode.
My question is if there is a way of having similar behaviour on building VB forms. I'm using VS 2010.
VS 2008 Perform Order By TCount In This Query?
Jan 2, 2010How can i perform order by tCount in this Query?
Public sub StatReport()
Dim Transaction = xmlDataset.Tables("ebus_transactions")
Dim TranCounts = From T In Transaction Take 2 _
[code]....
Query A DataTable - Change The Query At Runtime (ex. Changing The Customer Name)
Oct 15, 2011I created a RDCL in the designer. I would like the User to Determine what is shown in the Report. How can I change the query at runtime? (ex. changing the customer Name)
This is the query that I have in the properties:
SELECT [Date], Address, Customer, Orders
FROM Report_qry
WHERE (Customer= 'JohnDoe')
Perform A Linq Query To Obtain The Events For The Relevant User?
Jun 9, 2010I can achieve in VB what the following C# snippet does but it seems very clunky since I perform a Linq query to obtain the events for the relevant user. Is there a neat way?
ctx.FetchEventsForWhichCurrentUserIsRegistered((op) =>
{
if (!op.HasError)[code]........
VS 2005 Perform A MySQL Query To Get A Single Record (searched For By ID?
Jul 8, 2009I want to know if it is possible to perform a mySQL query to get a single record (searched for by ID) and then split each field into a seperate text box.I think im ok with the SQLQuery to get the record. its the splitting it into individual text boxes that im strugling with.
View 1 RepliesError "The Microsoft Office Access Database Engine Cannot Find The Input Table Or Query 'Puna'
Jun 6, 2011icant conect to database with visual basic i get this error "The Microsoft Office Access database engine cannot find the input table or query 'Puna'. Make sure it exists and that its name is spelled correctly"
Here is my code :Public Class dataLayer Private Shared connection As OleDb.OleDbConnection Private Shared Sub connect()connection = New OleDb.OleDbConnection("Provider=Microsoft.ACE.OLEDB.12.0;Data Source=" & IO.Path.Combine(My.Application.Info.DirectoryPath, "Fiskal.accdb") & ";Persist Security Info=False;")
[Code]...
Loop Through Data Table And Perform Calculations?
Jan 12, 2011I have an Access database that has thousands of records. The fields in the database are EMPID, FIRST, LAST, JOBTYPE and PAGES. I would like to know how to loop through the database and for each individual EMPID to calculate the sum of the PAGES foreach JOBTYPE. There are four JOBTYPE's: "E", "K", "O" and "R".
Her is some code:
Dim
WebAllEmployeeQuery As
[code].....