Which statement about sequences is not true? Sequences guarantee valid surrogate key values. A sequence is an object that generates a sequential series of unique numbers. Sequences are most often used to provide values for surrogate keys. NextVal and CurrVal are both sequence methods. TRUE ANSWER : ? YOUR ANSWER : ?
Indexes are created to enforce uniqueness on columns and to enable fast retrieval by column values. True False TRUE ANSWER : ? YOUR ANSWER : ?
Of the three ways to create an Oracle database, which one is the easiest and most recommended? Using the Oracle Database Configuration Assistant. Using the SQL CREATE DATABASE command. None of these Using the Oracle-supplied database creation procedures. TRUE ANSWER : ? YOUR ANSWER : ?
What is the type of Oracle backup in which all uncommitted changes have been removed from the datafiles? Full backup Inconsistent backup Differential backup Consistent backup TRUE ANSWER : ? YOUR ANSWER : ?
To obtain the structure of an Oracle table, the command to use is: DESC TABLE [TableName]. DESCRIBE STRUCTURE [TableName]. DESCRIBE [TableName]. STRUCTURE [TableName]. TRUE ANSWER : ? YOUR ANSWER : ?
You have linked SQL*Plus to an external text editor. To invoke the text editor for use within SQL*Plus, which command do you use? Open [FileName] Alter [FileName] Show [FileName] Edit [FileName] TRUE ANSWER : ? YOUR ANSWER : ?
The left-leaning slash tells Oracle to execute whatever statement is in the buffer. True False TRUE ANSWER : ? YOUR ANSWER : ?
Oracle, the world's most popular DBMS, is powerful and robust, running on many different operating systems. False True TRUE ANSWER : ? YOUR ANSWER : ?