Oracle® Objects for OLE Developer's Guide 11g Release 2 (11.2) for Microsoft Windows Part Number E17727-03 |
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Locks a referenceable object in the database.
OraRef.Edit
Call this method before modifying any attributes of an underlying referenceable object of OraRef
or an error is raised. This call makes a network round-trip to lock the object in the database. An error is raised if the object is changed by another user in the database. The object can also be locked during the pin operation using the EditOption
property.
The following examples update the attributes of the "PERSON"
referenceable object in the database.
Before running the sample code, make sure that you have the necessary data types and tables in the database. See "Schema Objects Used in the OraObject and OraRef Examples".
Dim OraSession as OraSession Dim OraDatabase as OraDatabase Dim OraDynaset as OraDynaset Dim Person as OraRef 'Create the OraSession Object. Set OraSession = CreateObject("OracleInProcServer.XOraSession") 'Create the OraDatabase Object by opening a connection to Oracle. Set OraDatabase = OraSession.OpenDatabase("ExampleDb", "scott/tiger", 0&) 'create a dynaset object from customers set OraDynaset = OraDatabase.CreateDynaset("select * from customers", 0&) 'retrieve a aperson column from customers. 'Here Value property of OraField object 'returns Person OraRef set Person = OraDynaset.Fields("aperson").Value 'locks the Person object in the server for modifying its attributes Person.Edit Person.Name = "Eric" Person.Age = 35 'Update method flushes the modified referenceable object in the server Person.Update
Dim OraSession as OraSession Dim OraDatabase as OraDatabase Dim Person as OraRef 'Create the OraSession Object. Set OraSession = CreateObject("OracleInProcServer.XOraSession") 'Create the OraDatabase Object by opening a connection to Oracle. Set OraDatabase = OraSession.OpenDatabase("ExampleDb", "scott/tiger", 0&) 'create an OraParameter object represent Address object bind Variable OraDatabase.Parameters.Add "PERSON", Null, ORAPARM_OUTPUT, _ ORATYPE_REF,"PERSON" 'execute the sql statement which selects person from the customers table OraDatabase.ExecuteSQL ("BEGIN select aperson into :PERSON" & _ "from customers where account = 10; END;") 'get the Person object from OraParameter set Person = OraDatabase.Parameters("PERSON").Value 'locks the Person object in the server for modifying its attributes Person.Edit Person.Name = "Eric" Person.Age = 35 'Update method flushes the modified referenceable object in the server Person.Update
See Also:
EditOption (OraRef) Property