Managing Databases with Oracle Oracle commands, column names, table names, view names and all other database elements are case sensitive. True False True False 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 enforce uniqueness on columns. Columns that are frequently used with equal conditions in WHERE clauses are good candidates for indexes. Indexes are created to enable fast retrieval by column values. Indexes are created with the ALTER TABLE command. Indexes are created to enforce uniqueness on columns. Columns that are frequently used with equal conditions in WHERE clauses are good candidates for indexes. Indexes are created to enable fast retrieval by column values. 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 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. 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 Which SQL phrase is not supported by Oracle? ON UPDATE CASCADE ON DELETE CASCADE DROP SEQUENCE [SequenceName] CREATE SEQUENCE [SequenceName] ON UPDATE CASCADE ON DELETE CASCADE DROP SEQUENCE [SequenceName] CREATE SEQUENCE [SequenceName] ANSWER DOWNLOAD EXAMIANS APP
Managing Databases with Oracle You have linked SQL*Plus to an external text editor. To invoke the text editor for use within SQL*Plus, which command do you use? Edit [FileName] Open [FileName] Alter [FileName] Show [FileName] Edit [FileName] Open [FileName] Alter [FileName] Show [FileName] 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 a value that is incremented whenever a dirty read occurs. is incremented whenever a deadlock occurs. is a value that keeps track of explicit locks. is a value that is incremented whenever database changes are made. is a value that is incremented whenever a dirty read occurs. is incremented whenever a deadlock occurs. is a value that keeps track of explicit locks. ANSWER DOWNLOAD EXAMIANS APP
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