Introduction to Database System A relation is in this form if it is in BCNF and has no multivalued dependencies: second normal form. domain/key normal form. third normal form. fourth normal form. second normal form. domain/key normal form. third normal form. fourth normal form. ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A relational database management (RDBM) package manages data in more than one file at once. How does it organize these file? As relations tuple both (a) and (b) tables None of these relations tuple both (a) and (b) tables None of these ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System The activity of a file is a measure of the percentage of existing records updated during a run refers to how closely the files fits into the allocated if high, reduces processing efficiency for sequential and nonsequential files is a low percentages of number of records added or deleted from a file None of these is a measure of the percentage of existing records updated during a run refers to how closely the files fits into the allocated if high, reduces processing efficiency for sequential and nonsequential files is a low percentages of number of records added or deleted from a file None of these ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System In a relation, the rows are sometimes called "fields". False True False True ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System An indexing operation establishes an index for a file sorts file using two keys sorts a file using a single key None of the listed here establishes an index for a file sorts file using two keys sorts a file using a single key None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which command(s) is(are) used to redefine a column of the table in SQL ? MODIFY TABLE DEFINE TABLE all of the listed here ALTER TABLE MODIFY TABLE DEFINE TABLE all of the listed here ALTER TABLE ANSWER DOWNLOAD EXAMIANS APP
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