Introduction to Database System Entity instances are associated by relationship classes. True False True False ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System When designing a database, first identify the entities, then determine the attributes, and finally establish the relationships. False True False True 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 SCHEMA CREATE SYNONYM CREATE SAME All of the listed here CREATE SCHEMA CREATE SYNONYM CREATE SAME All of the listed here ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A compound key is made up a several pieces of information uniquely identifies an item in a list is a combination of each unique key None of these both (a) and (b) is made up a several pieces of information uniquely identifies an item in a list is a combination of each unique key None of these both (a) and (b) ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System The physical location of a record is determined by a mathematical formula that transforms a file key into a record location in an indexed file a tree file a hashed file a sequential file None of these an indexed file a tree file a hashed file a sequential file None of these ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which of the following is not a restriction for a table to be a relation? The cells of the table must contain a single value. No two rows in a table may be identical. All of the entries in any column must be of the same kind. The columns must be ordered. The cells of the table must contain a single value. No two rows in a table may be identical. All of the entries in any column must be of the same kind. The columns must be ordered. ANSWER DOWNLOAD EXAMIANS APP
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