Examlex
Connectivities and cardinalities are usually based on ____________________ rules.
Q8: The hierarchical data model was developed in
Q9: An alternate syntax for a join is
Q31: The SDLC's planning phase yields a general
Q31: Describe what metadata are and what value
Q34: In a relational model,if A determines B,C,and
Q38: _ are important because they help to
Q45: Incomplete or improper transactions can have a
Q47: A trigger is procedural SQL code that
Q55: A _ key is defined as a
Q78: A(n)_ join returns not only the matching