Introduction to Database System Composite identifiers consist of two or more attributes. True False True False ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which command is used to remove an index from the database in SQL? ROLL BACK INDEX DELETE INDEX DROP INDEX REMOVE INDEX ROLL BACK INDEX DELETE INDEX DROP INDEX REMOVE INDEX ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System The Management Information system (MIS) structure with one main computer system is called a hierarchical MIS structure centralized MIS structure decentralized MIS structure distributed MIS structure hierarchical MIS structure centralized MIS structure decentralized MIS structure distributed MIS structure ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A computer file can be best described as a general collection of data items a random collection of data items a single data item an orderly collection of data items None of these a general collection of data items a random collection of data items a single data item an orderly collection of data items None of these ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A number of related records that are treated as a unit is called data field batch file data field batch file ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System The primary key is selected from the: foreign keys. composite keys. determinants. candidate keys. foreign keys. composite keys. determinants. candidate keys. ANSWER DOWNLOAD EXAMIANS APP
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