U
- Undo Advisor
A tool within the Oracle advisory framework that uses past undo usage to recommend settings for the UNDO_RETENTION parameter as well as an optimal size for the undo tablespace.
- undo data
The record of changes to database blocks recorded in the undo tablespace to facilitate reverting the effect of an insert, update, or delete operation on the block.
- Unicode
A universal encoded character set that allows you to store information from any known written language. Unicode provides a unique code value for every character, regardless of the platform, program, or language.
- Unicode code point
A unique value assigned to every character in a Unicode character set.
- Unicode datatype
Oracle datatypes used to store Unicode data when ...
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