Introduction to Database System Which of the following is NOT a basic element of all versions of the E-R model? Primary keys Relationships Attributes Entities Primary keys Relationships Attributes Entities ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A large computer information system maintains many different computer files. Which amongst them is called a perpetual file? Master file Log file Update file Specialized file Master file Log file Update file Specialized file ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System An attribute describes the entity's characteristics. True False True False ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which of the following is not an advantage of the data-base approach? elimination of the data redundancy increased security All of these program/data independence ability to associate related data elimination of the data redundancy increased security All of these program/data independence ability to associate related data ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System An indexing operation sorts file using two keys None of the listed here sorts a file using a single key establishes an index for a file sorts file using two keys None of the listed here sorts a file using a single key establishes an index for a file ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which command(s) is(are) used to enable/disable/drop an integrity constraint in SQL? DEFINE TABLE All of the listed here ALTER TABLE MODIFY TABLE DEFINE TABLE All of the listed here ALTER TABLE MODIFY TABLE ANSWER DOWNLOAD EXAMIANS APP
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