24-Mar-2001: Changes in 1.2.1 (since 1.2.0):

	New Features and Enhancements:

		In Oracle.h: Added method what() to Error classes (which
		returns str()) to more accurately echo the std::exception
		interface.

		In Number.h/cc: Added several methods which access standard
		OCI numeric functions: abs(), ceil(), floor(), mod(), round(),
		pow(), sqrt(), trunc().

	Bugs Fixed:

		In Connection.h: Added private default and copy constructors
		to disallow their use.

		In Non_Sel_Stmt.h: Added a private default constructor to
		disallow its use.

16-Mar-2001: Changes in 1.2.0 (since 1.1.0):

	New Features and Enhancements:

		Added a new Cursor class to support the use of ref cursors.
		The Cursor class inherits from Nullable (so that you can
		bind() them) and Select_Stmt (so you fetch() and so on).

		In the Nullable class and derived classes (Date, Number):
		Renamed the type() member function to sqlt() to differentiate
		it from the Stmt::oci_type() function (since Cursor inherits
		from both Nullable and Stmt).

		In the Stmt class and derived classes (Non_Sel_Stmt,
		Select_Stmt): Renamed the get_type() member function to
		oci_type().

		In the Stmt class and derived classes (Non_Sel_Stmt,
		Select_Stmt): Added a protected default constructor to allow
		creation of an uninitialized Stmt object (to support the
		Cursor class).

		In the Stmt class and derived classes (Non_Sel_Stmt,
		Select_Stmt): Added a member function sql_fcode() to retrieve
		the OCI SQL function code for the statement.

		In Select_Stmt.h/cc: Created a new protected member function
		get_column_info() so that column information can be retrieved
		both by the (non-default) constructors and when initializing a
		default-constructed object.

		In Env.h: Added the Cursor class as a friend class.

		In Nullable.h: Changed the following member functions to
		virtual: set_null(), is_null(), indicator().

		In Makefile: Added build support for the Cursor class.

	Bugs Fixed:

		In Rowtype.cc: Fixed a nasty memory leak where the vector
		object containing the column names was not released upon
		destruction of the Rowtype object.

		In Stmt.cc: Fixed possible references to a null pointer in
		oci_type() (formerly get_type()), do_exec() and bind() when
		generating an error object.

3-Jan-2001: Changes in 1.1.0 (since 1.0.0):

	New Features and Enhancements:

		I made an effort to make throw specs more consistent and
		changed most of them to the base class Error.

		References to friend classes were changed from the obsolete
		"friend classname" to "friend class classname".

		Inlined operator<<() in the Nullable class and derived
		classes.

		Enhanced error reporting by using the Error classes' desc data
		member more widely.

		In Date.cc: Added an assign() method to the Date class which
		allows assignment of a string with an arbitrary format.

		In Rowtype.cc: Added a default constructor to the Rowtype
		class to allow construction of an empty Rowtype object.

		In Rowtype.cc: Added an add(Nullable*, string&) method to allow
		manual building of Rowtype object contents.

		In Rowtype.cc: Inlined all versions of operator[]().

		In Select_Stmt.cc/h: Added a bind_col(Nullable* ...) method so
		that multiple columns may be bound to host variables with a
		single statement.

		In Select_Stmt.cc: bind_col() will now initialize an empty
		Rowtype object.

		In Stmt.cc/h: A prepare() method with no arguments was added
		so that the text of a statement built as a stream can be
		prepared with out being executed.

		In Stmt.cc/h: Added a bind_q(Rowtype&) method so that all
		objects contained in a Rowtype object may be bound in one
		step.

		In Stmt.h: The Stmt_Manip class was renamed to Stmt_Null_Manip
		to logically accommodate a Stmt_Row_Manip class for using
		Rowtype objects as arguments to manipulators.

	Bugs Fixed:

		In Date.cc: Fixed a bug in Date's copy constructor that caused
		a Date object to remain uninitialized if if the object being
		copied is NULL.

		In Date.cc: Fixed the Date-to-Date assignment operator so
		that it checks for self-assignment.

		In Number.cc: Added a call to OCINumberSetZero() to the
		default and copy constructors so that later assignments would
		not result in an error.

		In Number.cc: Fixed the Number-to-Number assignment operator
		so that it checks for self-assignment; fixed a bug that caused
		a Number object to remain uninitialized if the rhs object is
		NULL.

		In Number.cc: Fixed a bug in operator+=(Number), -=, *= and /=
		which caused a problem for uninitialized lhs objects.

		In Oracle.cc/h: Added a copy constructor for the OCI_Error
		class.

		In Varchar.cc: In constructor Varchar(int) added
		initialization of the new character array to an empty string.

		In Varchar.cc: Fixed a bug in Varchar's copy constructor that
		caused a Varchar object to remain uninitialized if if the
		object being copied is NULL.

		In Varchar.cc: Fixed the Varchar-to-Varchar assignment
		operator so that it checks for self-assignment; fixed a bug
		that left the lhs object's indicator variable unchanged.