Verify that the patch package exists and that you can access it, or contact the application vendor to verify that this is a valid Windows Installer patch package Another version of this product is already installed. To configure or remove the existing version of this product, use Add/Remove Programs on the Control Panel The installer cannot install the upgrade patch because the program being upgraded may be missing or the upgrade patch updates a different version of the program.
Verify that the program to be upgraded exists on your computer and that you have the correct upgrade patch.
If an entire row can be inserted into a single data block, then Oracle stores the row as one row piece.
However, if all of a row's data cannot be inserted into a single data block or if an update to an existing row causes the row to outgrow its data block, then Oracle stores the row using multiple row pieces.
A chained row's pieces are chained together using the rowids of the pieces.