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![]() ![]() In the default state, Oracle Objects for OLE sets unset fields to NULL while adding records using the AddNew method. The ORADYN_DEFAULT parameter value specifies the default dynaset state. The CreateDynaset() method returns a pointer to the result of the SQL SELECT statement. Set EmpDynaset = OraDatabase.CreateDynaset("select * from emp", _ In the example, the statement selects all the rows from the emp table and assigns the resulting dynaset to the global EmpDynaset variable as follows: The OraDatabase.CreateDynaset() method creates the dynaset specifying a valid SQL SELECT statement. The Employee application needs a global dynaset that the rest of the program can access. Oracle Objects for OLE lets users browse and update data using an object called a dynaset. When Visual Basic executes this line, a connection is created to the specified database.Ĭreate a global OraDynaset object to manipulate the data. The constant ORADB_DEFAULT represents the default database mode. The method call must specify the database name, the connection string, and a bit flag that represents the database mode. ![]() The OraSession.OpenDatabase() method creates the OraDatabase object. Set OraDatabase = OraSession.OpenDatabase("Exampledb", "scott/tiger", _ To do so, you must create the OraDatabase object as follows: Executing this command starts the Oracle In-Process Server.Īfter the OIP server is running, you can connect to a local or remote Oracle database. The right side identifies the type of object to create, in this case, the XOraSession object. The left side of the argument defines the application name as registered in your system, in this case, OracleInProcServer. When creating the OraSession object, the argument supplied to the CreateObject() function must always be OracleInProcServer.XOraSession. Set OraSession = CreateObject("OracleInProcServer.XOraSession") To start the Oracle In-Process Server, you must create an OraSession object using the Visual Basic CreateObject() function, as follows: The Oracle In-Process Server (OIP) provides the interface between the Visual Basic application and Oracle Database. Start the Oracle In-Process Automation Server. Sample code for this example is provided in "Completed Sample Form_Load Procedure". Getting Started: Steps to Accessing Oracle Dataīefore server data can be manipulated, the application must accomplish the four steps that are described in this section.
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