Introduction to Database System A key is a group of one or more attributes that uniquely identifies a row. False True False True ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System The logical data structure with a one-to-many relationship is a tree chain relational network tree chain relational network ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System In a relational schema, each tuple is divided into fields called Relations Queries Domains All of the listed here Relations Queries Domains All of the listed here ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A relation is in this form if it is in BCNF and has no multivalued dependencies: domain/key normal form. second normal form. fourth normal form. third normal form. domain/key normal form. second normal form. fourth normal form. third normal form. ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which of the following is a serious problem of file management systems? lack of data independence difficult to update program dependence data redundancy All of these lack of data independence difficult to update program dependence data redundancy All of these ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System In SQL, which command(s) is(are) used to create a synonym for a schema object? CREATE SAME CREATE SCHEMA CREATE SYNONYM All of the listed here CREATE SAME CREATE SCHEMA CREATE SYNONYM All of the listed here ANSWER DOWNLOAD EXAMIANS APP
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