Sql - Get Information From The 2 Tables Into 1 Row?
Feb 8, 2012
Dim LocationList =
From rows In db.Locations, clientRow In db.Clients, stateData In db.Ref_States
Where rows.State = stateData.ID
Select ClientName = clientRow.Name, rows.ID, rows.Address1, rows.Address2, rows.City, StateName = stateData.Name, ShortStateName = stateData.ShortName, rows.ZipCode Order By Address1
That's what I have and it is very wrong. Everything shows up, but the data displays incorrectly, displays more rows than exist.
Dim LocationList =
From rows In db.Locations, clientRow In db.Clients, stateData In db.Ref_States
Where rows.State = stateData.ID And rows.ClientID = ucClientID And rows.ClientID = clientRow.ID
Select ClientName = clientRow.Name, rows.ID, rows.Address1, rows.Address2, rows.City, StateName = stateData.Name, ShortStateName = stateData.ShortName, rows.ZipCode Order By Address1
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Jun 9, 2011
The program is currently trying to pull information from three different database tables and compiling the information onto one screen, to do this i am using three different connections and a function to handle the data at each stage. The issue is as my code hits PageLoadStage of "2" and runs the QueryDatabase() Function i am encountering an error of: "OleDB exception unhandled: No value given for one or more of the required parameters." This occurs on line 15 of the first code snippet. Can anyone explain this and/or identify any code issues if that is the cause.
[Code]...
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Feb 15, 2012
what i need to do is to get information from 2 tables and show it to the listview. for example, i want to get the surname, first name and middle name from the student_info table and the Payment_Status from the accounting_system. i don't want to show the information that is already on the accounting system that has 'Paid' on the Payment_Status.[code]but the listview only showed the first data on the database
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Jan 13, 2010
I have to tables into my SQL Server 2008 database
1st table: tblUser (user_id, user_name, user_photo);
2nd table: tblAccess (id, user_id, status_access);
I need to permit access or denied access using this 2 tables....
The problem is: When the user type a 'user_id' in textbox, the application go to table tblAccess and verify if the status_access is true or false.... if is false, the application show a msgbox saing "Access denieded"... when status_access is true the application go to table 'tblUser' and get user_name, user_photo and show the user photo to the picturebox, show the user name to the labeltext and a message box saying : access permited...
How can I do it in VB.net 2008
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Aug 15, 2009
The code I am having problems with is supposed to take a ID number and load the information from several different tables into a game object, then return the object. When it tries to load the data into the object I get an error saying there is no data in the row or column. [code]
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Jul 25, 2012
I am using VS2008 and SQLite. I have created a database and several tables and am attempting to populate the tables with data from arrays.
The following code (example) works fine but stops after it inserts 30 to 50 records. I am running the VB code in debug mode and when it stops, I press pause to see where it is. It stops on "SQLcommand.ExecuteNonQuery()" and when I press continue (F5) it will insert another 30 to 50 records.
I do not get an error message. Is this a timeout issue? How do I keep the loop running to the end of the array?
Following is example code.
Dim
SQLconnect As New SQLite.SQLiteConnection()
Dim SQLcommand As SQLiteCommand
CODE:.....................
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Jul 12, 2011
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
[code].....
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Oct 29, 2010
In my datagridview I was fill in using join tables (table1 = pr_employees, table2 = pr_employee_deduction). My problem now is during save button I want to update records from table2 only.[code]
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May 10, 2012
We are presently developing an application, let's call it APP1, which uses a SQL Database which have about 800 stored procedures, 600 tables, etc. APP1 was originally created in order to replace another application, APP0, from which we do not have source code but only SQL tables, Stored Procedures, views, etc. Previous programers of APP1 used some DB objects from this same database and added some other objects specific to APP1 because it becomes bigger than APP0. And we do not need APP0 anymore as APP1 does all what we want, and more.
So, now, we are thinking about a way to find out which objects are used by APP1 in order to remove objects which are ONLY used by APP0.What is the best approach to discover all objects used by APP1 without having to open every single class and form?
Once we will have a complete list of these objects, it will be easy to use a program we bought which detects all dependencies for all SQL Objects specified directly from SQL and remove objects which do not return from any dependencies. Any ideas of how I could get this list without having to go through all our program that have many, many, many classes and forms?
Note : I know, in a perfect world, all calls to PSs and tables should be in a DAL but in the case of the application we're presently working on ... this is not our case! Yippy! (sarcastic yippy) ;)
Note 2 : This application is not using any ORM. So all queries are directly using SqlCommand. So any call to any DB objects are in string format.
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Mar 25, 2009
I have a 5 tables in my database and i want to access all my tables togather at a time.e.g.I have a code for one table i.e. rs.Open "select * from Group_info", con, adOpenDynamic, adLockBatchOptimistic. instead of Group_info table i want to access 5 tables also as Login_table,User_info table,group_name table etc. How i do that
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Feb 2, 2011
I was looking for some stuff online, and i was looking through my reference sheets for vb.net, but it seems in the code i have found, there is declare in methods. Below is an example i am talking about. The thing is, that i dont recognize it and believe that it is an earlier version of Visual Basic ( 6 or earlier) which used it. Should i just keep looking for different code?
Public Declare Function RegOpenKey Lib "advapi32.dll" Alias "RegOpenKeyA" (ByVal hKey As Long, ByVal _
lpSubKey As String, phkResult As Long) As Long
Goal: Find information on how to implement a method which will check if a certain DSN exists, and then if it does, extract the information and use the information for connection purposes.
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May 24, 2012
I have a text box where i am entering numbers of double datatype andon the Keytdown event of the textbox some checks take pace and in certain circumstances I want to be able to stop the user from entering other information until they enter the right information in the textbox (where it says right here) . now when I say exit sub the textbox somehow loses focus . but this is not how I want it to be I want the textbox to remain with the focus so the user can change the information . How can i go about this. And the other thing is why is my txtDestPayRate1.Focus() just befor the exit sub not working?
Private Sub txtDestPayRate1_KeyDown1(sender As Object, e As System.Windows.Forms.KeyEventArgs) Handles txtDestPayRate1.KeyDown
If e.KeyCode = Keys.Enter Then
[CODE]...
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Dec 3, 2009
I am designing a backup/restore utility for work.atm i have been able to populate field for PC name, IP address, MAC address, number of printers installed on the PC but i am wondering is it possble to get all the printer information 'with the click of a button' to print all information like the prnmngr.vbs script down.I am able to run a batch file but i wanna get it to go from that app or even embed to batch file to the app and run it form there .
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Jun 6, 2011
SQL statements:
SQL = "SHOW TABLES;"
Try
conn.Open()
The remarked area works fine when I'm accessing a specific table. I've successfully inserted the products_model field into the combobox too. The datagridview does show the table names in the db using the SHOW TABLES sql statment, but I'm not understanding how to get this info into the combobox instead.
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Aug 27, 2009
I am using VB2005 and trying to put an application together.What it needs to do is retrieve information from a binary file, possibly alter that information, and put it back into a new file.The file is a .wav file with data appened to the end. There is an additional section at the end of the .wav file which stores xml data.I have found that if I open this in a hex editor and make a 1:1 swap on any of the bytes that the application that the file is for can still read the XML.If I tried to add or remove characters from the XML then it would not read. I located a header byte and incremented it to resolve this.
This worked as an excellent bandage to do conversions where the data always needed to be changed to the same thing.What I have been asked to do is build logic that allows for different things to happen depending upon what data is contained within the file.The method that I am currently trying to impliment is:
Read through the file with a system.io.binaryreader
Searche for a bytestream that will signal data is coming
For example:
If System.IO.File.Exists("C: est estread.wav") Then
Dim findit() As Integer = New Integer() {&H3C, &H55, &H73, &H72, &H44, &H65, &H66, &H30, &H31, &H30}
Dim i As Integer[code].....
And then extract all the data till the end of element marker "<" It seemed like there should be a better way and I was looking for some insight. If I proceed with this method, I will have to read the file one time to gather the information and then a second time to write it all out with the header modified for length.This is my first experiene with working with binary files in this way.Also,I've been experiementing with building a string and slapping it back in at the end using the binarywriter.write(string) method.I noticed that it was putting in header characters before the string.These seem to change if I change the length of the string.At one point it was d0 07. Later it became e7 07. Does anyone know of a way to prevent this header from being inserted?
I tried a for each loop to grab all of the characters from the string, convert them to a byte array and deposit the byte array into the file, but the header remained the same. When I write the byte array generated from a system.io.binaryreader I do not get this header.
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Aug 14, 2009
I am trying to make a database, fill it with tables and then fill the tables. I am having problems connecting to the server and am really not sure why. I have posted this thread in two areas of this site because I was not sure what was the best area to put it in. [code]
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Oct 8, 2009
I have a fair bit of experience with VB.NET and C# (In this case I chose VB.NET, blame my laziness), but I do most of my professional work using PHP. I have no experience what so ever in using any database with VB.NET let alone MySQL.Just FYI, at the moment I am only trying to Query the database to gather the information required to activate. The Activation wizard and algorithm building (which is finished anyway), and everything else will come soon. I chose the MySQL database because I have experience with it, and it seems the best option for remote usage.The whole idea already works in PHP, I'm just have major issues moving it accross into VB.NET (Using the MySQL Connector.NET);I understand the basics, and all I need to know how to do is Count Rows and gain access to the other information in a row based on provoided information (in PHP, through mysql_ result)
So, here goes nothing, this is the Query code I am using in PHP to complete the job I want to do in VB.NET. [code] As you can see, I basically need to get the PHP code into VB.NET to fit into the 'btnQueryDB.Click' Command in VB.NET. By Equivalent, the Product ID in VB.NET will come from 'txtPID' and similar, Serial Number will come from txtSNUM. Once counted to be 1, the Activation Code and Status will be fed into 2 other text boxes in the form. (acCode, and acStatus).
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Sep 13, 2011
Private Sub frmReportExpenses_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
Dim objDatasetExpence As New dSetExpences // dataset object named as dSetExpences
Dim objRptExpence As New rptExpences // Crystal report object
Dim MyCommand As New OleDbCommand()
[code]....
This code show error "Report has no tables"i want to show crystal report using Access 2003 Database pragmatically. blank report is added in project and trying to fill it DataSet object.
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Dec 31, 2010
I signed up for a free 30 of Azure. I logged in, created a database. I am able to connect (=Test Connectivity). But that's it. I don't see anyway to create tables, etc. Also how can I connect this db to vb.net (I am using vs.net 2010)?
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Dec 5, 2010
I've been programming an application for someone, and have run into various questions.
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Jun 10, 2012
I really need assistance for this multiple problem am facing here. Let me take you to my hell: I've got three tables in my database that are:
1) tbAthlete (athleteID, nationID, gameID, fname, lname)
2)tbNation (nationID, nation)
3)tbGame (gameID,game)
I connected the database to vb and created a (form1) based on a query that use all fields except IDs. that form1 is just good as displaying and navigating throug records. Now i wanted to link that form1 to another form(2) which will allow me to update and add new record. in the form2, country and game need to be combobox as there is no need to enter new record for them. so when adding new record, only "tbAthlete" table get affected. form1 works as excpected. how do i go for the form2
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Jun 21, 2010
How to check whether two tables in SQL are the same using vb.net? Would u mind giving me the code?
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Apr 13, 2011
I would like to know how to compare two tables which are in a datagridview each one. I imported one from excel and the other one from sql, i want to add the info that is in each cell of excel's table in sql table..though i don't want to have duplicated data.I want to do something like this
'datagridview1=exceldv
'datagridview2= sqldv
for each item1 in exceldv
for each item2 in sqldv
[code]....
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Aug 30, 2009
I want to track changes of a document which sits in a DB table like :
document starts
document continues 1
document continues 2
document continues ...
document ends
(Each line is a record but if needed I can combine them all to one record)I have the document before changes in one table and the document after the change in another table.My problem is that if I just compare them by ID then I'll get many more changes than actually occured. Ex: If a line (/record) was added between record 2 and record 3, instead of tracking 1 change I will see that all the records from 3 and on have changed (because they will be pushed off by one record). Can be also something which knows to compare documents and I'll take the information out to document for comparison.
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Dec 31, 2010
I have a table called PARTS and table called PARTEXT.
PART has:
PartID
PartDescription
PartCostPrice
PartSalePrice
PARTEXT has:PartID
PartImagePath
For some reason (please don't ask me why) the designer of the database splitted the tables.I need a sql command to "combine" between the two tables by making new View, so it will show the content of the PART table and in each row it will get the PartImagePath of the same PartID that both tables have.
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Jan 10, 2010
How to copy records from one table to another table?
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Aug 12, 2010
I am trying to achieve this.
Public Enum Tables
customers
[code].....
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Mar 12, 2010
how can I get all Tables from a Database, which I'm connected to. By the way, this is a MSDE Database.
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Mar 7, 2011
I've got two different tables in my database. One is Class and other one is LAREACT and both of them have a key field of MAIN FACILITY USED. In the following part of my code a DataTable will be generated based on the sum of the records on both tables.Based on the bellow code ACTIVITYLOOKUP datatable is having "MAIN FACILITY USED","Description","TypeName","Type","Id" columns. The issue happens when there is a row with the same MAIN FACILITY USED entity. The datatable will not show it (filter it?). Do you know where the problem lies? and how it will be fixed without any modification in database?
[Code]...
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Jan 29, 2010
I need your help with Getting MPEG-2 PSI Tables. Anyone can tell me what can i do to get MPEG-2 PSI Tables? I found some information here:[URL]... but there is nod said how to get MPEG-2 PSI Tables.
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