I have about 4 different tables with the exact same column names. What I would like to do is select the top 4 records out of all of these tables combined ordered by date (as date is one of the columns that they all share).
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I have two tables as follows:
Customer | Product
------------------
A | Car
A | Bike
A | Boat
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If I use a normal JOIN then I get a list of friends for every separate product. I just want the two lists once.
The output lists with '-' need not be table cells, they can be <ul>s.
How can I achieve this? I would like to bind to ASP.net GridView. Should I try to do it all in one query, or use multiple queries and somehow add them both to the same Grid?
Each row actually forms part of a long report. Essentially each row of the report contains Customer ID, a bunch of other fields which match one-to-one with Customer ID, then the two lists for each Customer ID I described. Perhaps I can use a separate query for each list, then manually add each list to the grid on RowDataBound or similar?
I am trying to delete particular tables routinely from the sys.tables in vb.net. here is code, but it does not work.
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I have a select query like this. But from the below codes, I cannot update t2.unit_price in the same SqlDataAdapter
My Codes :
Dim MyQuery1 as String="Select t1.item_id,t1,group_id,t2.unit_price from Table1 t1 left outer join Table2 t2 on T1.Item_ID=T2.Item_ID"
Dim DAp1 as SqlDataAdapter,Ds1 as New DataSet
Con.Open()
DataAdapter1=New SqlDataAdapter(MyQuery1,Con)
DataAdapter1.Fill(Ds1)
[Code] .....
From the above codes
Dim Sav1 As String = "insert into table1 .........."
I don't know how to mention table2 also there ?
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I have Memberships and Bookings tables in database containing an attribute cust_id which is primary key in Memberships and reference key in Bookings. When i am executing data reader I want it to read cust_id values from membership table but it is reading it from the bookings table.....
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I have a web portal designed in ASP.NET in which we ask customers to enter the data. On the click of submit button all i have done is, just read the data and called a stored procedure which inserts that into a table. There seems to be a problem in SQL Server 2005 while inserting the data from multiple computers at the same time. We have tested in our lab with three computers, result is that we get the data inserted successfully in only one machine and on the other two machines we get error on page. I have used transactions in the stored procedure and also tried setting the isolation levels to READ_UNCOMMITTED, SERIALIZABLE and SNAPSHOT. Nothing seems to work properly.
View 4 RepliesI 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]....
have a datagridview containing 2 tables left joined, so that:table1 LEFT JOIN table 2 ON table1.id=table2.idI get an error whenever I try to edit my datagridview."invalidOperationException was unhandled by the user codeDynamic SQL generation is not supported against multiple base tables."The error points to this line:
da.FillSchema(dt, SchemaType.Mapped)
da.Update(dt) << This line
'da = dataadapter
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I am trying to load some data from a database table into a data grid. However the way it is accomplished is that the user will be able to select the database (i.e. the database can be located anywhere in the hard drive) and once he or she selects the database, a second interface would allow him or her to select the number of tables within that database (can be any number of tables). Once the table is selected the contents of the table will be loaded into the datagrid. It is just like opening an Access (.mdb) file and then click and open a table within the file except that it is done programatically
View 8 RepliesI'm probably doing something wrong but, SQL statement on an access database works fine until I add in the second table. As soon as I do it just hangs....??
sql = "SELECT Candidate.Candidate_Number, Candidate_Name FROM Candidate, Candidate_Counties WHERE Technical_Skills LIKE '%" & Q1 & "%'" ' AND Anywhere_UK = 1"
Technical_Skills is on Table Candidate
Anywhere_UK is on Table Candidate_Counties
I want to insert existing tables in new table stock by selecting from date and to date ..I tried this
cmd = New SqlCommand("INSERT INTO Stock (OpeningStockdate,Productcode,Openingstock,Despatch,Receipt,ClosingStock) (SELECT A.OpeningStockdate as OpeningStockdate, A.PC as Productcode,MAX(A.Openstock) AS Openingstock ,SUM(C.Qty) AS Despatch,SUM(B.Qty)
AS Receipt,MAX(Openstock) + ISNULL(SUM(B.Qty),0) -ISNULL(SUM(C.Qty),0) AS ClosingStock FROM Product A LEFT JOIN Receipt B ON
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i got this error" Incorrect syntax near the keyword 'Where' "
what i have is 3 text boxes
User
Role
Upgrade To
and a gridview
what i am trying to do is :when i type in the user the system will look in my table cg_security_user and recognise that the current role is "guest". Then in the Upgrade to when i type in "admin" it will update the current role(guest) to admin here is a picture is attached of what i am trying to do as it might paint a better picture the code which i have made so far is
Private Sub cmdupdate_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles cmdupdate.Click
Dim myAdapter As New OleDbDataAdapter
strsql = "update table1 set studname = @field2, studaddress=@field3, studage=@field4 where studid=@field1"
[code]....
I am creating an application with html using vb as the back end. Microsoft Visual Studio is the application I am using.I have two drop down boxes...one called department, the other program. When a department is selected, I want the program dropdown to only display the programs that are associated with the department chosen. I have found several different codes to do this but nothing has worked so far.
View 4 RepliesAssuming this schema:
Table1 (Col1 int, Col2 str, Col3 str, ...)
Table2 (Col1 int, Col2 str, Col3 str, ...)
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I need to select all records from Table2 where there are NO records in Table1 having matches of both Col2 & Col3. For instance, Table 2 records where Table1.Col2 <> Table2.Col2 AND Table1.Col3 <> Table2.Col3.
i want to show records from other tables but this error occurs
Sub fillorderdetail()
conn.Open()
Dim adpt As New SqlDataAdapter("select * from orderdetail", conn)
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I have a vb.net web application and when a particular function runs , i get data timeouts in the rest of the application..(ie..row not found errors or column does not belong to table but it does) The function is adding multiple rows in multiple tables in the database and is running in a for loop. It seems to be all SQL related but I am not seeing anything in the error logs in SQL or in the application Right now I am assuming it is memory related where to start note..the for loop will be replaced with a bulk insert but right now I jest need to resolve the issue of the timeouts
View 1 Repliesi have 3 tables in ms access that is patient , NOK,and admission they have related fields, i am using vb 2005. when i delete a record from the patient table i want the related records from the other tables to be deleted.
View 1 RepliesHow can I use Linq to SQL in Vb.net to combine the records of two tables into a datagrid such as shown in this example:Assume i have two tables tbl1 and tbl2
tbl1:
col1 col2
A1 B1
A2 B2
tbl2:
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i've implemented a system on vb.net 2010 having its database on Ms Access 2010 (.accdb). i have to read records from the tables to a combo box by binding its datasource to the tables directly. the problem is that the data in the combo box is not sorted since in the database itself the records are not sorted. how can i achieve the sorting?
View 1 RepliesI'm trying to utilize two tables with SQLReader but it's not working as planned.This is a simple explanation:
Table1 has columns c1 and c2, both integer.
Table2 has column data that is string (numeric with hyphen separators).
A typical record has this: : 20123-456-9834-167
The user inputs two integer values in variables uf2 and uf3.I want to get records from table1 that match the criteria:
1. Column c2 equals uf2.
2. A table2 record is found that:
a. has "-" + c1 at the end. (e.g. If c1 value is 167, the record above matches.)
b. has "-" + uf3 elsewhere in the record. (e.g. If uf3 value is 456, the record above matches.)
There is no "relationship" between the two tables.
The pertinent SQL code I have tried is similar to this:
dim strQuery as string = "SELECT c1, c2, data FROM table1, table2 WHERE " & _
"c2 = @f2 AND data LIKE '%-' + c1 AND " & _[code].....
How can i execute my query to insert records in tables?[code]...
View 7 RepliesI've got a form where a user enters data. When the user submits that data, it inserts a record to two separate tables via a dataset. One of the records has no problem being saved into the database (in the table it was put into), but the other record seems to temporarily be in there (according to a third form), because it exists for the duration of the application, but when I exit, and then check the database, it's not there, and it's not shown on the third form when I restart the application again either.
View 11 RepliesI'm writing an assignment in VB for a class which displays records from an Access database. It goes as follows:
From a "Rooms" table, I get the rooms to be displayed in a combo box along with 3 checkboxes which will tell me if they have a jacuzzi, private access of a fire place. From a different table in the same database I need to display in text boxes the bed size, weekday and weekend prices for booking each room. The text boxes should display the correct information according to what was selected in the combo box, but I can't get that to work! The checkboxes work fine, but the text boxes stay the same.
Here's what I have so far:
Private Sub Rooms_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Try
Dim RoomsData As New RoomsDataTier
Dim RoomsDataSet As New CottagesDataSet
RoomsDataSet = RoomsData.GetRooms
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I have been trying to display records from two tables from seperate databases into a datagrid. So far I can only get to display one record.
View 9 RepliesUsing a datagrid, binding to one table, and related to one combobos, I cant update records, cause gives me a violation error. I'm not changing the primary key, so, I dont undersatnd cause this happen. I prepair a example of this error, and it was attached to this message.
View 5 RepliesI have a small project i am doing for work to compare our website catalogue to our actual inventory in our financial software. To do this, i have exported the online catalogue as a delimited text file using "^" as the delimiter. I then want to go into our Accpac data a find out if all the items are still active, the current price and the stock on hand.
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I want to create a sub that gets changes from my typed dataset and datatable. But it says mydatatable is not a public member of dataset. Passing in as objects.
Public Sub GetRateChanges(ByVal myDataSet, ByVal myDataTable)
If myDataSet.HasChanges(DataRowState.Modified Or DataRowState.Added) Then
' Create DataSet variable.
Dim xDataSet As DataSet
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Another question. . I pull this infor from a view via tableadapter and it comes from several different tables.. How could I save my changes and insert the new records to the appropriate tables>?
I try to fill up a data grid view with records of two related tables. Beneath you can find the code I use to handle this.
The first table �GemeentenT� has the following columns.
GemeenteId Primary key
GemeentePostnummer
GemeenteNaam
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I would like to display the multiple records in multiple textboxes Following is my tables and data:
tblJan with these data:
col id
1
2
3
col January
10
20
30
now i want to display the value 10 in one textbox and the value 20 in another textbox and so with the value 30 in another textbox..
I have a DataGridView that is being populated. What I'm trying to accomplish is when I select like 3 rows I click a button and it gives me the "row numbers" for those three rows.
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