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 Which of the following is not true about modifying table columns? You can add a column at any time as long as it is a NULL column. 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 drop a column at any time. You can add a column at any time as long as it is a NULL column. 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 drop a column at any time. ANSWER DOWNLOAD EXAMIANS APP
Managing Databases with Oracle In creating a procedure, you may get a message if you have compile errors. Which of the following is true? If there are no syntax errors, you will receive the message "NO ERRORS." To see the errors, enter SHOW ERRORS in SQL*Plus. SQL*Plus will automatically show the errors to you. The line numbers reported match the line numbers you see in your text editor. If there are no syntax errors, you will receive the message "NO ERRORS." To see the errors, enter SHOW ERRORS in SQL*Plus. SQL*Plus will automatically show the errors to you. The line numbers reported match the line numbers you see in your text editor. ANSWER DOWNLOAD EXAMIANS APP
Managing Databases with Oracle Oracle does NOT support a CASCADE UPDATE constraint. True False True False ANSWER DOWNLOAD EXAMIANS APP
Managing Databases with Oracle Which of the following is not true about indexes? 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. Indexes are created with the ALTER TABLE command. Indexes are created to enable fast retrieval by column values. 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. True False True False ANSWER DOWNLOAD EXAMIANS APP
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