Introduction to Database System Which command is used to remove an index from the database in SQL? DROP INDEX REMOVE INDEX DELETE INDEX ROLL BACK INDEX DROP INDEX REMOVE INDEX DELETE INDEX ROLL BACK INDEX ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Entities use identifiers while tables use keys. False True False True ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Properties that describe the characteristics of entities are called: relationships. identifiers. entities. attributes. relationships. identifiers. entities. attributes. ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Sort/report generators none of the listed here require more disk space than index/report generators are faster than index/report generators do not need to sort before generating a report none of the listed here require more disk space than index/report generators are faster than index/report generators do not need to sort before generating a report ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A primary key is a composite key that was selected to be the main identifier for the relation. False True False True ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System The term _____ is sometimes used to refer to a data file in which all the records have the same record format, that is, the same field names, field lengths, and data types. Flat file Data structure Table None of these Database Flat file Data structure Table None of these Database ANSWER DOWNLOAD EXAMIANS APP