Managing Databases with Oracle Oracle maintains a System Change Number (SCN) which is a database-wide value that is incremented by Oracle whenever database changes are made. False True False True ANSWER DOWNLOAD EXAMIANS APP
Managing Databases with Oracle After a table has been created, its structure can be modified using the SQL command: CHANGE TABLE [TableName]. UPDATE TABLE [TableName]. MODIFY TABLE [TableName]. ALTER TABLE [TableName]. CHANGE TABLE [TableName]. UPDATE TABLE [TableName]. MODIFY TABLE [TableName]. ALTER TABLE [TableName]. ANSWER DOWNLOAD EXAMIANS APP
Managing Databases with Oracle Which of the following is not true of SQL views? The SQL-92 standard does not allow the use of the ORDER BY clause in view definitions. Oracle views are created using the standard SQL-92 CREATE VIEW command. Oracle views cannot use the ORDER BY clause in view definitions. Oracle views can by queried. The SQL-92 standard does not allow the use of the ORDER BY clause in view definitions. Oracle views are created using the standard SQL-92 CREATE VIEW command. Oracle views cannot use the ORDER BY clause in view definitions. Oracle views can by queried. ANSWER DOWNLOAD EXAMIANS APP
Managing Databases with Oracle Which statement about sequences is not true? A sequence is an object that generates a sequential series of unique numbers. NextVal and CurrVal are both sequence methods. Sequences are most often used to provide values for surrogate keys. Sequences guarantee valid surrogate key values. A sequence is an object that generates a sequential series of unique numbers. NextVal and CurrVal are both sequence methods. Sequences are most often used to provide values for surrogate keys. Sequences guarantee valid surrogate key values. ANSWER DOWNLOAD EXAMIANS APP
Managing Databases with Oracle Oracle does NOT support a CASCADE UPDATE constraint. False True False True ANSWER DOWNLOAD EXAMIANS APP
Managing Databases with Oracle An Oracle System Change Number (SCN): is a value that is incremented whenever database changes are made. is incremented whenever a deadlock occurs. is a value that is incremented whenever a dirty read occurs. is a value that keeps track of explicit locks. is a value that is incremented whenever database changes are made. is incremented whenever a deadlock occurs. is a value that is incremented whenever a dirty read occurs. is a value that keeps track of explicit locks. ANSWER DOWNLOAD EXAMIANS APP
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