Oracle® Objects for OLE Developer's Guide 11g Release 2 (11.2) for Microsoft Windows Part Number E17727-03 |
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An OraDatabase
interface represents a user session to an Oracle database and provides methods for SQL and PL/SQL execution.
An OraDatabase
interface in Oracle8i and higher releases adds additional methods for controlling transactions and creating interfaces representing instances of Oracle object types. Attributes of schema objects can be retrieved using the Describe
method of the OraDatabase
interface.
In previous releases, an OraDatabase
object is created by invoking the OpenDatabase
method of an OraSession
interface. The network alias, user name, and password are passed as arguments to this method. In Oracle8i and higher releases, invocation of this method results in implicit creation of an OraServer
object.
As described in the OraServer
interface description, an OraDatabase
object can also be created using the OpenDatabase
method of the OraServer
interface.
Transaction control methods are available at the OraDatabase
(user session) level. These methods include:
BeginTrans
CommitTrans
Rollback
For example:
MyDatabase.BeginTrans MyDatabase.ExecuteSQL("delete from emp where empno = 1234") MyDatabase.CommitTrans
Note:
If theAutoCommit
property is set to True
, transactions are committed automatically, and you do not need to use the transaction control methods.