Beginning Oracle Database 11g Administration From Novice to Professional

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CHAPTER 8 USER MANAGEMENT AND DATA LOADING
The object types shown in Listing 8-1 are very common. Tables are the containers for
our data; indexes help us find the data; sequences are continuously incrementing counters
that generate unique identification numbers for data records; procedures are blocks
of application logic that are stored within the database; triggers are specialized blocks of
application logic that are triggered by specific events, such as a data record being added
to a table; and views are “virtual tables” that can combine data from multiple tables.
Notice that we found the information we needed in . Coincidentally enough,
Oracle manages the contents of a database using its own tables, indexes, sequences, procedures,
triggers, and views; these are stored in the schema. For example, is
a dictionary view in the schema. Listing 8-2 shows the contents of the schema; notice
the wide variety of object types.
Listing 8-2. Objects Found in the Schema