Database Table Is Not Ordered?
Apr 30, 2011Sometimes when I insert a new row to a table in my database, it comes before the last row.I will explain. If I have the following table:
ID Name
1 James
2 Terry
[code].....
Sometimes when I insert a new row to a table in my database, it comes before the last row.I will explain. If I have the following table:
ID Name
1 James
2 Terry
[code].....
[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 RepliesI am having a remote server it has INVENTORY DATABSE , and also iam having same databse in my local system. I want to populate by local database table with my Remote database table through Vb.net code by click a button. How to do this .
View 1 RepliesI want to add a new table in my accdb and copy the content tfrom an existing table into the new one.
Is there an easy way to do this?
Dim intNumber As Integer
Dim arrNumber(0 To 51) As Integer
Dim i, x, y As Integer
[code]....
When I select a row from my gridview by clicking on a linkbutton called 'Modify' and is the last cell in the row. Using the code below I can retrieve the key value from within the GridView1_RowCommand sub and move to the modify screen with the correct data.
Dim r As Integer = e.CommandArgument
GridView1.SelectedIndex = r
Dim Company As String = GridView1.SelectedDataKey(0).ToString
[Code].....
When I try to access the first row it returns the first row value from the original Gridview and not from the re-ordered one.
I want to grab Top 10 most Ordered product by customer... Im counting how many lines that this product have been ordered .
Sample data:
ProdName
A
B
C
[Code]....
Ive done this in other database using LIMIT 10.. but here in SQL server the result of that query is the bottom record's
I have searched the Internet and this forum for any help on making specialized lists in a Richtextbox instead of the default bulleted list (i.e: Numbered, Upper Roman, Lower Roman, etc.). I know that the default Richtextbox only supports Bulleted lists. I have tried to find a custom Richtextbox control that does it and nothing.I found this code snippet on another site, but after messing with it for a while I just put this on the back-burner while I worked on other things.
View 2 RepliesI have three tables,
Products(ProductID, ProductName)
Orders(OrderID, OrderDate)
OrderDetails(ProductID, OrderID) Junction table between Products and Orders.
For example, there are Three ProductID in Products table A01, A02, A03
Four OrderID in Orders table
1. 01/01/2009, 2. 03/01/2009, 3. 05/01/2009, 4. 07/01/2009.
OrderDetails data as below:
A01 -- 01/01/2009
A02 -- 01/01/2009
A01 -- 03/01/2009
[Code]....
then I want to display the date that A03 is not ordered from range 02/01/2009 till 08/01/2009 which could have the result like this.
DateMissingOrder for Product A03 in range of date 02/01/2009 to 08/01/2009:
03/01/2009
07/01/2009
How can I do this in LINQ to SQL Visual Basic?
I was hoping to save some coding by using views to access my forms in VBInstead of using a very long query I was hoping to use
Code:
Select * FROM my_view
[code].....
I have a utiility that users can re-order DataGridView Columns in to their hearts content. I want them to be able to create a named list so they can have multiple Column Patterns to choose from.When I restore though the re-ordered Columns are not where I saved them.
View 1 RepliesI'm trying to generate a report that shows the products ordered for a given customer.
I'm getting an error on the line that states:
lblList.Text &= rowInvoices(
"ProductCode")
& " "
& rowInvoices("Quantity")
The error message states: Column 'ProductCode' does not belong to table Customers.
I have three tables: The Customer Table, which points to the Invoice Invoice table via the CustomerID.
Also, the Invoice table, which contains the product code, points to the Invoice table via the InvoiceID.
If possible I'd like to bring in the Products table to get the Product description.
[Code]...
I have a database that has two tables in it. One is a table of items (table1) and the other is the table of current items (table2).On form load I need to generate a random amount of the items from table1 and populate table2 with them. I was trying to do something like this:
[Code]...
I added a table to my Access database. I added that table to my dataset. Using Database Designer VB Studio, my table and tableadapter show up in the design view. The class definition is in the datasetdesigner.vb, and it shows in the object browser. But, I can't reference it in code. I am a newby and obviously missing somethning.
View 1 RepliesHow 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.
So Im a student and I need some help I have a question "Write a program that displays a list of Super Bowl winners ordered by the number of games won." I need to use arrays, in the most basic way possible someone was telling me about keys but I havent done that yet...The array is a text file with just the 44 names of the Superbowl Winners...
View 12 RepliesI need to Update Access Database Table with Data from a Different Table. Not all the rows of original Table to be Updated will be affected. How do you loop through the 2 Tables to do the required Update.
The Table to be updated is called "RecordList" and Table with new Data is called "RecListReport".Every attempt I've made won't work. I tried to Use 2 Datagridviews but couldn't get it to work right.
NewTestConn()
Dim Testconn2 As New OleDbConnection(NewTestConn1)
Dim da As New OleDbDataAdapter
[Code]....
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.
I am using the tutorial posted here for my database testing. I have gotten it to display the data using a messagebox but it just goes through them 1 by one. I want it to display all the data from the database in a table on my form.
Using connection As New SqlClient.SqlConnection("Server=71.200.87.112MySQLExpress; Database=database_test;User ID=sa;Password=greddy6;Trusted_Connection=False;")[cod
I am trying to copy a table from a network database to a local database. I used DAO and could check if the network table existed using a function that tried to assign a TableDef object to the table in question. If there was no error then I assumed that the table existed and the function returned true...Or it would error out and return false.I could then proceed with the copy or not as the case may be.I am converting the code to ADO.net and need to know how to check for a table. [code]
View 1 RepliesI have a form that cycles through a database table with next and prev buttons Database name is "China.accb" and the table is called Users Table Users has two fields, both text.One is called UserID and the otheris Password"am getting an error message when I try to click the next button that states: "Unable to cast object of type "System.String' to type System.Windows.Forms.Textbox'. I've highlighted the line causing the error below
Imports System.Data.OleDb
Public Class frmUsers
Dim intMaxRows As Integer
[code].....
I have to write a code in vb.net (2010).To get a data from Database A table 1 and dump it to Database B Table 2.What's the best way to do this? Most efficient way? I know I can do this very easily in sql management studio but I need to write a code to do this in vb.net.
View 2 RepliesIf want to do a DataView.Find on a DataTable that is already 'ORDERED' by the Column I am seaching, so a DataView.SORT should not be necessary, but it throws an Exception if I don't give a .sort command before the .find command. Is there any way to avoid this apparant duplication ? and speed up the search time. Its a very large table - 1 million rows. I am using VB 2010
View 6 RepliesI am trying to copy a table in a database into another database on another connection in VB.NET, using OleDb. If they were on the same connection I would just use SELECT INTO, but they are not. I have two different OleDbConnection and cannot see an easy way to do this.
Right now I am attempting to just copy the database into a DataTable using an OleDbDataAdapter, and then loop through the DataTable and insert every record into the target database one at a time. This obviously takes a ton of time for the large DB I could potentially be dealing with, and I have to deal with escaping strings, null values, etc.
edit - just to make this more clear: I have two OleDbConnection objects, one is linked directly to a local .mdb file on my computer (JET). The other is linked to a database on our servers (SQLOLEDB). I am wanting to do this:
"SELECT * FROM fromDB INTO toDB"
But I can't because fromDB and toDB are on different connections, and the OleDbCommand object is only attached to one. The only way I can see how to do this is to connect to fromDB, copy it into a DataTable, connect to toDB, and copy all of the data in the DataTable row by row into toDB. I was wondering if there is an easier way to do this.
i want to update my inventory table in database from another database name. Example: In VB, i had a form named Orderform. User need to select e product that they want and key in the quantity. all these information are able to store inside my database named ORDERTAB. but now the problem is i wanted to update another field in my database named INVENTORY by minus the quantity tat the user had key previously. i totally had no idea how it going to works.
View 3 RepliesI have a dataset (WW1Dataset) with one data table(WW1).(database used in an access database) I'm trying to filter the dataset e.g a user wants to filter by a chosen surname (SurnameTextBox.text) so the datset is filtered to display only those records wherethe surname column in the dataset matches SurnameTextBox.text.
View 1 RepliesI am using VB 2008 Professional with the SQL Sererver that is installed with it. I have a SQL datbase in my program. The database has a table with several columns on which a parameterized query is based for selecting a specific jpg file name out of 114 of them at run time. I want to add a column to this table that contains the actual jpg images, so that they are stored and retrievable directly from the database.If I go to Server Explorer, expand the database, expand Tables, right click on the table for the jpg's and select Open Table Definition, I could add a column with Data Type "Image". If I a column this way and then opened Show Table Data, how would I add the jpg's in the column with the Data Type "Image" or is this the wring way to add that jpg's to the data base?
View 3 RepliesI have database called 'BCN.mdb'
the database includes a table called "BCN_Table"
I want to add a table while program running with DAL[codde]...
I'm trying to program a sort of point of sale system which involves getting the completion time of a job from a database, and then calculating the total value. So far I have[code]....
View 1 RepliestableList = Conn.GetOleDbSchemaTable(OleDbSchemaGuid.Tables, New Object() {Nothing, Nothing, Nothing, "TABLE"})
For i As Integer = 0 To tableList.Rows.Count - 1
rtn.Add(tableList.Rows(i).Item("TABLE_NAME").ToString())
Next
I am using above way to get the table name in the database, but it returns several temp table such as "~TMPCLP...". How can I get rid of it? Is this the right way to obtain the table names?