Introduction to Database System In SQL, which command(s) is(are) used to redefine an index's future storage allocation MODIFY INDEX REDEFINE INDEX ALTER INDEX None of these DO INDEX MODIFY INDEX REDEFINE INDEX ALTER INDEX None of these DO INDEX ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which of the following is not a restriction for a table to be a relation? The columns must be ordered. All of the entries in any column must be of the same kind. The cells of the table must contain a single value. No two rows in a table may be identical. The columns must be ordered. All of the entries in any column must be of the same kind. The cells of the table must contain a single value. No two rows in a table may be identical. ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which type of entity is related to two or more associated entities that each contain specialized attributes that apply to some but not all of the instances of the entity? Subtype entity Supertype entity Archetype entity Instance entity Subtype entity Supertype entity Archetype entity Instance entity ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Sort/report generators require more disk space than index/report generators do not need to sort before generating a report none of the listed here are faster than index/report generators require more disk space than index/report generators do not need to sort before generating a report none of the listed here are faster than index/report generators ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A key: identifies a row. can only be one column. must always be composed of two or more columns. identifies a column. identifies a row. can only be one column. must always be composed of two or more columns. identifies a column. ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System One data dictionary software package is called TOTAL any of the above DB/DC dictionary None of these ACCESS TOTAL any of the above DB/DC dictionary None of these ACCESS ANSWER DOWNLOAD EXAMIANS APP
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