The arguments for the method are:
| Arguments | Description |
|---|---|
[in] size |
An Integer specifying the number of elements to trim. |
The elements are removed from the end of the collection. An error is returned if the size is greater than the current size of the collection.
The following example illustrates the Trim method. Before running the sample code, make sure that you have the necessary data types and tables in the database. See "Schema Objects Used in OraCollection Examples" .
Example: Trim Method for the OraCollection Object
Dim OraSession as OraSession
Dim OraDatabase as OraDatabase
Dim OraDynaset as OraDynaset
Dim EnameList as OraCollection
'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 department
set OraDynaset = OraDatabase.CreateDynaset("select * from department", 0&)
'retrieve a Enames column from Department.
'Here Value property of OraField object returns EnameList OraCollection
set EnameList = OraDynaset.Fields("Enames").Value
'display the size of the collection
msgbox EnameList.Size
'Trim the EnameList collection by one. Before that row level
'lock should be obtained
OraDynaset.Edit
EnameList.Trim 1
OraDynaset.Update
'display the new size of the collection
msgbox EnameList.Size