Oracle Q/A

A join is used to compare and combine specific rows of data from two or more tables in a database....

The “ANALYZE” command allows the user to perform various functions on index, table or cluster. It helps:  To identify migrated...

Various Oracle database objects are: Tables – set of elements arranged in vertical and horizontal manner Tablespaces – logical storage...

An Oracle database can contain one or more tablespaces or logical storage units. These tablespaces collectively store all the data...

We can represent comments in Oracle in the following two ways: Two dashes (–) before the line starts – Single...

Nested table is a data type in Oracle used to hold columns for storing multi-valued attributes. A nested table can...

A table is the basic unit of data storage in the Oracle database. Data is stored in rows and columns. ...

The two main components of logical database structure in the Oracle database are:  A tablespace is the logical storage unit of an...

The components of the physical database structure are: 

Schema objects are tables, indexes, databases, views, sequences, synonyms, triggers, functions, procedures, and packages.