Introduction to Database System Periodically adding, changing and deleting file records is called file upgrading renewing Updating restructuring upgrading renewing Updating restructuring 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. True False True False 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. None of these Database Table Flat file Data structure None of these Database Table Flat file Data structure ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System In a large DBMS all of the listed here each subschema contains every field in the logical schema each user can access every sub¬schema each user can "see" only a small part of the entire database all of the listed here each subschema contains every field in the logical schema each user can access every sub¬schema each user can "see" only a small part of the entire database ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System The main idea behind computer files is that it is convenient to create them store information together access them arrange them create them store information together access them arrange them ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System In SQL, which command(s) is(are) used to redefine an index's future storage allocation ALTER INDEX None of these REDEFINE INDEX DO INDEX MODIFY INDEX ALTER INDEX None of these REDEFINE INDEX DO INDEX MODIFY INDEX ANSWER DOWNLOAD EXAMIANS APP
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