Managing Databases with Oracle An Oracle System Change Number (SCN): is incremented whenever a deadlock occurs. is a value that keeps track of explicit locks. is a value that is incremented whenever a dirty read occurs. is a value that is incremented whenever database changes are made. is incremented whenever a deadlock occurs. is a value that keeps track of explicit locks. is a value that is incremented whenever a dirty read occurs. is a value that is incremented whenever database changes are made. ANSWER DOWNLOAD EXAMIANS APP
Managing Databases with Oracle Oracle, the world's most popular DBMS, is powerful and robust, running on many different operating systems. True False True False ANSWER DOWNLOAD EXAMIANS APP
Managing Databases with Oracle To obtain the structure of an Oracle table, the command to use is: DESCRIBE STRUCTURE [TableName]. DESC TABLE [TableName]. STRUCTURE [TableName]. DESCRIBE [TableName]. DESCRIBE STRUCTURE [TableName]. DESC TABLE [TableName]. STRUCTURE [TableName]. DESCRIBE [TableName]. ANSWER DOWNLOAD EXAMIANS APP
Managing Databases with Oracle Which statement about sequences is not true? Sequences are most often used to provide values for surrogate keys. NextVal and CurrVal are both sequence methods. 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. Sequences guarantee valid surrogate key values. A sequence is an object that generates a sequential series of unique numbers. ANSWER DOWNLOAD EXAMIANS APP
Managing Databases with Oracle Which of the following is not true about indexes? Indexes are created with the ALTER TABLE command. Indexes are created to enable fast retrieval by column values. Columns that are frequently used with equal conditions in WHERE clauses are good candidates for indexes. Indexes are created to enforce uniqueness on columns. Indexes are created with the ALTER TABLE command. Indexes are created to enable fast retrieval by column values. Columns that are frequently used with equal conditions in WHERE clauses are good candidates for indexes. Indexes are created to enforce uniqueness on columns. ANSWER DOWNLOAD EXAMIANS APP
Managing Databases with Oracle You can use the DROP statement to remove structures from the database. True False True False ANSWER DOWNLOAD EXAMIANS APP
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