Visual studio and sql server tutorial
Imports ĭim connStr = "Data Source=.\SQLEXPRESS AttachDbFilename=|DataDirectory|\myDatabase.
Visual studio and sql server tutorial code#
I am comfortable with T-SQL, so I’ll enter this code at the. This opens the Table Designer at the top and a code panel to enter TSQL, at the bottom. Open SQL Server Object Explorer in Visual Studio, expand your instance and development database, right-click the Tables folder and choose Add New Table. The following example queries the names from the system view "sys.objects", which exists in every database, so you can run it without any modification. Making database changes in Visual Studio. Other option is to use a DataReader, it works like a server cursor and you can process the data row by row. Server, but for large results it will use a lot of memory on the client. In your first sample you used DataAdapter+ DataSet with this all rows from the result set will be transfered from SQL Server to the client into the DataSet, with that you can then work "offline" without an existing connection to SQL Not sure which is best or whether either works.Ĭan give me an example of a method to display a set of rows via looping through the results from a select query? Say, 'select surname from myTable where id<5'. They make decisions based on those reports. The report managers check the report, matching it with the given requirements. Dim connection As New SqlClient.SqlConnectionĭim adaptor As New SqlClient.SqlDataAdapterĬonnection.ConnectionString = ("Data Source=.\SQLEXPRESS AttachDbFilename=|DataDirectory|\myDatabase.mdf Integrated Security=True User Instance=True")Ĭommand.CommandText = "SELECT * FROM WHERE forename!=''" It is a publishing tool, that is hosted in Visual Studio or Business Intelligence Development Studio (BIDS). Then there is the SQLServer code I tried but I can't get it to work with all insert/select/update/delete requests. Objcmd = New OleDbCommand(strSQL, objconnection) StrSQL = "insert into myTable(forename,surname)values(Bob,Smith)" Objconnection.ConnectionString = strconnection Objconnection = New OleDbConnection(strconnection) Strconnection = "provider=SQlOLEDB data source=? database=myTable user ID=? password=? " Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Clickĭim objconnection As OleDbConnection = Nothing
I'm not sure if this is even a local internal database access code.
Visual studio and sql server tutorial how to#
Put in the data source bit, whether I need to add a resource for something and how to assign the username/password. This seems to be a straightforward method and seems easier than sqlserver method but I can't work out what to Below is some sample code that needs tweaking or some further explanation to deal with insert/select/update/delete. From PHP I know all the methods for querying the db table but I can't find an easy way to write a runtime command in VB. Saeid - I've checked out the video and whilst it shows how to create a database and make queries it doesn't seem to show any VB code.