|Oracle® Objects for OLE Developer's Guide
11g Release 2 (11.2) for Microsoft Windows
Part Number E17727-03
|PDF · Mobi · ePub|
Trims a given number of elements from the end of the collection.
The arguments for the method are:
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" .
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