Introduction to Database System A key is a group of one or more attributes that uniquely identifies a row. True False True False ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A _____ Contains fields of data about one entity. None of these Fields File Document Record None of these Fields File Document Record ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A key: can only be one column. identifies a row. must always be composed of two or more columns. identifies a column. can only be one column. identifies a row. must always be composed of two or more columns. identifies a column. ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System In SQL, the CREATE TABLESPACE is used All of these to create a place in the database for storage of scheme objects, rollback segments, and naming the data files to comprise the tablespace None of these to create a database trigger to add/rename data files, to change storage All of these to create a place in the database for storage of scheme objects, rollback segments, and naming the data files to comprise the tablespace None of these to create a database trigger to add/rename data files, to change storage ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System The primary key is selected from the: candidate keys. determinants. composite keys. foreign keys. candidate keys. determinants. composite keys. foreign keys. ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A top-to-bottom relationship among the items in a database is established by a Relational schema All of the listed here Network schema Hierarchical schema Relational schema All of the listed here Network schema Hierarchical schema ANSWER DOWNLOAD EXAMIANS APP
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