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]. ALTER TABLE [TableName]. MODIFY TABLE [TableName]. CHANGE TABLE [TableName]. UPDATE TABLE [TableName]. ALTER TABLE [TableName]. MODIFY TABLE [TableName]. ANSWER DOWNLOAD EXAMIANS APP
Managing Databases with Oracle Which of the following is not true about modifying table columns? You cannot increase or decrease the number of decimal places. 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 can increase the number of characters in character columns or the number of digits in numeric columns You cannot increase or decrease the number of decimal places. 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 can increase the number of characters in character columns or the number of digits in numeric columns ANSWER DOWNLOAD EXAMIANS APP
Managing Databases with Oracle The semicolon terminates a SQL statement (and executes it). False True False True ANSWER DOWNLOAD EXAMIANS APP
Managing Databases with Oracle SQL*Plus will finish the statement and execute it when the user types in this: A semicolon ( ; ) followed by [Enter]. A left slash ( ) followed by [Enter]. A colon ( : ) followed by [Enter]. A period ( . ) followed by [Enter]. A semicolon ( ; ) followed by [Enter]. A left slash ( ) followed by [Enter]. A colon ( : ) followed by [Enter]. A period ( . ) followed by [Enter]. ANSWER DOWNLOAD EXAMIANS APP
Managing Databases with Oracle When you type Start FILENAME, the statement in your file will be executed automatically. False True False True ANSWER DOWNLOAD EXAMIANS APP
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