Managing Databases with Oracle Indexes are created to enforce uniqueness on columns and to enable fast retrieval by column values. False True False True ANSWER DOWNLOAD EXAMIANS APP
Managing Databases with Oracle An Oracle System Change Number (SCN): is a value that keeps track of explicit locks. is incremented whenever a deadlock occurs. is a value that is incremented whenever database changes are made. is a value that is incremented whenever a dirty read occurs. is a value that keeps track of explicit locks. is incremented whenever a deadlock occurs. is a value that is incremented whenever database changes are made. is a value that is incremented whenever a dirty read occurs. ANSWER DOWNLOAD EXAMIANS APP
Managing Databases with Oracle What is the type of Oracle backup in which all uncommitted changes have been removed from the datafiles? Full backup Differential backup Inconsistent backup Consistent backup Full backup Differential backup Inconsistent backup Consistent backup ANSWER DOWNLOAD EXAMIANS APP
Managing Databases with Oracle Oracle directly supports the definition of surrogate keys. False True False True ANSWER DOWNLOAD EXAMIANS APP
Managing Databases with Oracle Of the three ways to create an Oracle database, which one is the easiest and most recommended? Using the Oracle-supplied database creation procedures. Using the SQL CREATE DATABASE command. Using the Oracle Database Configuration Assistant. None of these Using the Oracle-supplied database creation procedures. Using the SQL CREATE DATABASE command. Using the Oracle Database Configuration Assistant. None of these ANSWER DOWNLOAD EXAMIANS APP
Managing Databases with Oracle Which of the following is not true about modifying table columns? You can increase the number of characters in character columns or the number of digits in numeric columns You can add a column at any time as long as it is a NULL column. You can drop a column at any time. You cannot increase or decrease the number of decimal places. You can increase the number of characters in character columns or the number of digits in numeric columns You can add a column at any time as long as it is a NULL column. You can drop a column at any time. You cannot increase or decrease the number of decimal places. ANSWER DOWNLOAD EXAMIANS APP
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