Introduction to Database System In SQL, which command is used to select only one copy of each set of duplicable rows SELECT DISTINCT All of these None of these SELECT UNIQUE SELECT DIFFERENT SELECT DISTINCT All of these None of these SELECT UNIQUE SELECT DIFFERENT ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Prior to 1970, all data was stored in separate files, which were mostly stored on reels of magnetic tape. False True False True ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which of the following is not the responsibility of the utilities component of DBMS software? None of these creating the physical and logical designs creating and maintaining the data dictionary removing flagged records for deletion monitoring performance None of these creating the physical and logical designs creating and maintaining the data dictionary removing flagged records for deletion monitoring performance ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A maximum cardinality is the maximum number of entity instances that can participate in a relationship instance. False True False True ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System In order to use a record management system None of these Both (a) and (b) You need to understand the model the record management system uses. You need to understand the low-level details of how information in stored All of these None of these Both (a) and (b) You need to understand the model the record management system uses. You need to understand the low-level details of how information in stored All of these ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System One data dictionary software package is called None of these TOTAL any of the above DB/DC dictionary ACCESS None of these TOTAL any of the above DB/DC dictionary ACCESS ANSWER DOWNLOAD EXAMIANS APP
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