.net - Return Top 5 Records Of A Table In A Dataset?
Mar 30, 2010I want to return the top 5 records of a table in a dataset for datagrid view. The following does not work.
DataGridView.DataSource = DS.Tables("TABLENAME").Select("SELECT TOP 5")
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VS 2005 Inserting Records From Dataset To Table?
May 11, 2012Im inserting records from a dataset to access table by selecting a key(dix) from a listbox. below is the code Sub loop2(ByVal dix)
ds.Clear()
table_name1 = "TestStepDetailTable"
con.ConnectionString = dbprovider
con.Open()
'MsgBox("database is open")
[Code]...
The problem is when i insert a first key(dix) records its coying fine. But when i insert the second set of records in is sorting int he table. but when i looked at the dataset by using gridview the recods appears in a right order. but the updated table is somewat sorted order. Is there any possible way to insert the records in the same order in the dataset..
Datatable Getdata Performance - In-line Table Valued Function In SSMS Takes About 6 Seconds To Return 11088 Records?
Mar 25, 2011An in-line table valued function in SSMS takes about 6 seconds to return 11088 records. The same function in VB .Net 4.0 using TableAdapters.InputTableAdapter.GetData (Created with data set designer) takes about 15 minutes complete.Both are executed from the same workstation.Why does this discrepancy exist?
Workstation:
Windows XP SP3, 2GB
VS2010 Ultimate
.Net 4.0 Framework
Server:
SQL Server 2008
[VB 2010] Return Alert Message If SQL Query Return No Records
Dec 12, 2011I use this code to return records in a DataGridView:
[Code]....
Sql Server - Updating SqlClient Dataset Table With OracleClient Dataset Table?
May 5, 2012I use a dbDataAdapter to populate a DataTable from an unlinked oracle database.I have a dbDataAdapter that I want to insert rows into an SQL Server table using SQLCommandBuilder.I have been trying all day to update the DataTable that references the SQL Server table with the data from the Oracle DataTable so that I can insert the rows.
View 2 RepliesUpdate Records In A Dataset With Records In A Transaction File?
Dec 29, 2011How do I update records in a dataset with records in a transaction file?
View 3 RepliesVS 2010 Records In Table Are Determined By Records In Another Table?
Apr 22, 2012I have a database with 3 tables: Student, Unavailability and Duty.The fields for Student are entered in a form I have. One of the fields in Unavailability is filled by a form, the other fields are an autonumber and a foreign key to the Student table.ow I want records in the Duty table to be created and automatically filled in depending on what the values of the fields are in the Student table.For example, If the Boarder field in the Student table is 'yes' then I want the Duty Number field in the Duty table to be '1', '3' and '4'. If it is 'no' then I want the value to be '2' and '5'. I recognize it will have to create several different records to incorporate the different duty numbers for each StudentID. Obviously this will require an if statement, however this is my first time implementing a database with my limited experience with programming and Visual Basic, so I don't know how to refer to the specific fields in a table and set the value of other fields depending on the data in other fields.
View 6 RepliesInsert Records Into One Table Using Records From Other 3 Tables?
Mar 27, 2012I have this piece of code wich works perfectly when inserting records into one table using records from another table. My question is that now i need to create another table by using records from 3 other tables (tables are related). Can i use aliases on the column names, like on Oracle SqlPlus? How will be the syntax of the 'INSERT INTO SQL statement?
Dim MyConn As ADODB.Connection
Dim MyRecSet As ADODB.Recordset
Dim tmpSQL As String
MyConn = New ADODB.Connection
[code]....
VS 2010 Insert Records In One Table From Another Table With Sql Satement?
Mar 27, 2012I do this in Oracle databases just in a snap, but now I have to do it in VB using ADODB and I don't know how to do it.
I have two Access 2007 tables. Table A contains: Col1 (text), Col2 (text), Col3(date), Col4(amount), Col5(text)
Table B contains Col1(date), Col2(amount) What I need to do is to insert into table B the records of table A (col4 summed) grouped by date of table A. The date is a variable contained in a text box so it cannot be hardcoded into the SQL statement.
Sql - How To Use A Query That May Return Zero Records
Apr 8, 2012I have a query that I am running and it will on occasion return zero records.
This is perfectly fine for me, but how do I handle this to avoid throwing an exception?
Filter Out System Table And Only Return User Table?
Oct 12, 2011I would like to know how to filter out system tables and only return user tables .when i run the code it displays lists of system tables with user tables list in combobox.I have just gotten into vb.net and have tried few ways to do this but dont understand well enough.
[Code]....
Add A Master Table To A Dataset Where The Detail Table Is Already Linked To A Windows Form?
Jul 2, 2009I have a large form that is set up from master-detail datasets in Visual Studio 2008.I havene master table with a large amount of detail tables. Several of the detail tables also have detail tables linked.Now I need to add a master table that sits on top of my existing master table making it a detail table.
View 7 RepliesUpdate A Single Table Of A DataSet Using A TableAdapter Without Hard-coding The Table Name?
Nov 13, 2009I have a project which contains a large number of lookup tables, and I have all of these lookup tables represented in a single typed DataSet, which contains TableAdapters for each lookup. I've designed an editor for these lookup tables, which should allow editing of one of these at a time. My front-end is written in VB and WinForms, the back-end is a SOAP web service; I can successfully pass the changes to the DataSet back to the web service, but can't find a way to use a TableAdapter to update the single table that has been changed.
What I'm trying to do is instantiate the appropriate TableAdapter for the updated DataTable by sending the name of the table back to the web service along with the DataSet, then referring to the TableAdapter with a dynamic name. The normal way to instantiate a TableAdapter is this:
Dim ta As New dsLookupsTableAdapters.tlkpMyTableTableAdapter
What I'd like to do is this, but of course it doesn't work:
strTableName = "tlkpMyTable"
Dim ta As New dsLookupsTableAdapters(strTableName & "TableAdapter")
Is there any way to achieve this, or am I taking the wrong approach altogether? My other alternative is to write separate code for each table, which I'd prefer to avoid!
Asp.net - Query/return Records With Dates Between Sunday And Saturday?
Mar 18, 2012I need to add a gridview to my page where the sqldatasource is based on a query that returns records that fall between Sunday and Saturday of the current week. (Each record has one date field) The records are for payroll purposes and the payroll week runs from Sunday to Saturday. I need to find all records that fall in the current pay week.
View 2 RepliesUpdate Dataset Table With Mysql Database Table?
May 22, 2011How can I update local dataset with mysql database without making duplicates. Assuming I set some column in mysql as primary key, which has unique string.
adapter.fill will just add duplicates, but adapter.clear before that is not an option.
So I want to update if the key column is the same with mysql data and if there is option for ignore adding new row.
Can't Add New Records To A Reopened Dataset
Jul 16, 2009I'm following a tutorial using serialization/saving records.I can make records, display them ok in a datgridview and then save them ok using serialization. Then I can reopen the programme and reload the dataset from the deserialised file, and show the records ok [code]....
View 1 RepliesCan't Add Records To A Reopened Dataset
Jul 16, 2009I'm following a tutorial using serialization/saving records. I can make records, display them ok in a datgridview and then save them ok using serialization. Then I can reopen the programme and reload the dataset from the deserialised file, and show the records ok - but I cannot add any more records to the datagridview.
Here is my code:
Imports System.IO
Imports System.Runtime.Serialization
Imports System.Runtime.Serialization.Formatters.Binary
[Code].....
Save Records To A Dataset?
Jul 18, 2010i have a register form and a dataset called clifs_project21Dataset.xsd
i just want to update
de info from register form to dataset and i use acces 2007
Adding Records To An Existing Dataset?
Mar 12, 2009having trouble adding records to an existing dataset, I tried the following code but it made a new connection which I don't want:
Dim inc As Integer
Dim con As New OleDb.OleDbConnection
Dim da As OleDb.OleDbDataAdapter
Dim sql As String
[code].....
How To Read Records (Rows) From DataSet
Jun 24, 2010I have used VB6 for all kinds of database programming. Now I am fairly new to the vb.net. How do we read the records (rows) from a dataset and manipulate data? I want to populate a combobox or a datagrid with a recordset (in VB6 language). What is the .net equivalent of ado dataset, and how do I use it. I have tried several ways using dataadapters and dataset, etc.
View 4 RepliesListView To Display Records From DataSet
Feb 21, 2012I am trying to use a ListView to display records from a dataset. In these records, I have 4 columns: EmployeeID, EmployeeName, CustomerID, and CustomerName. It is possible for both the Employee and Customer to be listed multiple times, but with different combinations.
For instance, if we have Employees 1, 2, 3 and Customers A, B, C we could have:
(1A)
(1B)
(1C)
(2A)
(2B)
etc.
What's going on with mine is I add say (1A) to the listView and then when it tries to add (1B) I get an error saying that it cannot add the same item.
Here is my code so far:
With list
.Clear()
.Columns.Add("Employee ID")
.Columns.Add("Employee Name")
.Columns.Add("Customer ID")
.Columns.Add("Customer Name")
[Code] .....
Records Inserts Into Dataset, But Not In Database
Mar 11, 2012so I have chosen to add the database to my vb project when the connection was being set up in Visual Studios 2010. so the code below inserts it to dataset, but database doesnt seem to be updated, I am trying to add new records to Business and Login tables and have defined two functions to assign the value of text boxes to the fields on the records: [Code]
View 6 RepliesC# - .NET Dataset Design - Have A Dataset For Each Table?
Jul 23, 2010I have some concern about designing Datasets. I was told that it would be good to have a dataset for each table for maintenance purpose. Because frequent change in database tables is expected, having one dataset including every tables would be pain to make the corresponding change in the application.
Q. is it good approach to have a dataset for each table ( I would end up having 30~40 datasets for each db table using Stored procedure) ?
I have a separate project for commonly used datasets. each project include "dataset project" as a reference, and use it by including needed dataset into Forms, classes, etc.
Q. Does this approach makes the whole system to be slower? If I have a set of datasets as a separate project, it would be beneficial, since It will be easier to make a change (I only need to make modification in one place)
Transfer Table's Records To Another Table?
Jun 12, 2011just wondering how do i transfer table's records to another table??i'm wondering where do i put the queries, or am i gonna put it in my stored proc?
View 3 RepliesReporting Services - Input Parameter Needs To Return All Records If Left Blank
Jul 9, 2009I have an input parameter for my stored Proc, Instead of choosing available values from a drop Dwn, the customer wants an empty input box that when left blank returns all records. the parameter type is numeric(6,0) in the Db. I have not found a way to leave the input blank and retrieve all records. my default value for all records is '-99' and also is declared as the default value for the param in the proc.
View 1 RepliesDataset Doesn't Return The Selections?
Aug 17, 2010im trying to get a selected time and my dataset doesn't return the selections what am i doing wrong in this statement
dim startindex as integer= 0
dim endindex as integer= 0
for each regel as datarow in my dataset.tables("Bookingen").rows
[Code].....
Return A Dataset And An Integer From One Function?
Nov 5, 2009I'm trying to write a function that will return a dataset and an integer, is this possible?
View 1 RepliesDataset Merging Sorts Records Incorrectly?
Feb 4, 2011I have a temp dataset (ds) that I load with data from a filtered dataset. I run this in a loop essentially populating the temp dataset with select records from the main dataset. I then merge the temp dataset back to the main dataset (dsSpecifics). The issue I am running into is that the records are loaded into the temp dataset in the way they were merged. record 1 is at row 0, record 2 is at row 1 and so on. When I merge the ds back to dsSpecifics, they load out of order but in a predictable way. Here is a snipit of the code:
myAircraft.Reset()
While myAircraft.MoveNext()
Me.TblAircraftSpecificTableAdapter.FillBy(Me.DsSpecifics.tblAircraftSpecific, CInt(myAircraft.Key.ToString))
[Code].....
It seems that after the final merge, the merge starts with the last record of ds and and then rolls over to record position 0.
Display Dataset Records In Textboxes Instead Of GridView?
Jun 7, 2010I want to display dataset records in textboxes instead of GridView. I also want to provide next, previous and search option to navigate between records in the dataset. And I also want to provide update and delete buttons to update and delete the current record that is being displayed.
View 4 RepliesGet Accidental Deleting Records In Dataset Back?
Jun 19, 2011I'm having a problem with editing records in my DataSet. When adding a record to the database, I have a button that adds to the binding source
[code]...