Managing Databases with Oracle Which of the following is not true about modifying table columns? 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 can add a column at any time as long as it is a NULL column. You cannot increase or decrease the number of decimal places. 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 can add a column at any time as long as it is a NULL column. You cannot increase or decrease the number of decimal places. ANSWER DOWNLOAD EXAMIANS APP
Managing Databases with Oracle If there is only one statement and no ambiguity about what is wanted, Oracle will treat the semicolon and slash as the same. False True False True ANSWER DOWNLOAD EXAMIANS APP
Managing Databases with Oracle Which of the following is NOT an Oracle-supported trigger? BEFORE AFTER DURING INSTEAD OF BEFORE AFTER DURING INSTEAD OF ANSWER DOWNLOAD EXAMIANS APP
Managing Databases with Oracle The default extension for SQL*Plus is .sql. False True False True ANSWER DOWNLOAD EXAMIANS APP
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
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