Managing Databases with Oracle
When using SQL*Plus, Oracle commands, column names, table names and all other database elements:

are case insensitive.
are case sensitive.
must always be in lower case.
must always be in upper case.

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Managing Databases with Oracle
Which statement about sequences is not true?

NextVal and CurrVal are both sequence methods.
Sequences are most often used to provide values for surrogate keys.
A sequence is an object that generates a sequential series of unique numbers.
Sequences guarantee valid surrogate key values.

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Managing Databases with Oracle
Which of the following is not true about indexes?

Columns that are frequently used with equal conditions in WHERE clauses are good candidates for indexes.
Indexes are created with the ALTER TABLE command.
Indexes are created to enforce uniqueness on columns.
Indexes are created to enable fast retrieval by column values.

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