Describe what the multiplicity constraint represents for a relationship type.
What will be an ideal response?
Multiplicity represents the number (or range) of possible occurrences of an entity type that
may relate to a single occurrence of an associated entity type through a particular relationship
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An operator's associativity establishes its priority in relation to all other operators.
Answer the following statement true (T) or false (F)
Match each item with a statement below.
A. Shortens the time it takes to write a change from buffer to disk B. Allows for updates and changes to a database at the same time, improving data loading and manipulation speeds C. Provides a method for applying security to specific rows of a table D. A tool that provides synchronization of replicated databases E. Eliminates the need for processes participating in online operation to maintain exclusive access to tables F. A tool that allows for the precomputing of data and prejoining of tables, increasing performance by improving query performance G. A divide-and-conquer approach to large-table and full-table scans H. A tool that allows for bidirectional copying of database objects, procedures, and indexes I. Enables the creation of failover databases for instances of failure