Introduction to Database System Which type of entity represents an actual occurrence of an associated generalized entity? Instance entity Archetype entity Supertype entity Subtype entity Instance entity Archetype entity Supertype entity Subtype entity ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which of the following is a type of DBMS software? utilities database manipulation language report writer All of these query language utilities database manipulation language report writer All of these query language ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which of the following is not a restriction for a table to be a relation? No two rows in a table may be identical. The cells of the table must contain a single value. The columns must be ordered. All of the entries in any column must be of the same kind. No two rows in a table may be identical. The cells of the table must contain a single value. The columns must be ordered. All of the entries in any column must be of the same kind. ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System In the relational model, relationships between relations or tables are created by using: determinants. foreign keys. candidate keys. composite keys. determinants. foreign keys. candidate keys. composite keys. ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A logical schema All of these describes how data is actually stored on disk None of these is the entire database is a standard way of organizing information into accessible parts All of these describes how data is actually stored on disk None of these is the entire database is a standard way of organizing information into accessible parts ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A maximum cardinality is the maximum number of entity instances that can participate in a relationship instance. False True False True ANSWER DOWNLOAD EXAMIANS APP
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