A、Looking for opportunities.
B、Considering a starting point.
C、Establishing the focal point.
D、Examining the future carefully.
A、Looking for opportunities.
B、Considering a starting point.
C、Establishing the focal point.
D、Examining the future carefully.
A、In mapping one-to-one association
B、In mapping one-to-many associations
C、In mapping many-to-one associations
D、In mapping many-to-many associations
A、Relational.
B、Object-relational.
C、Object-oriented.
D、All of the above.
A、Dirty read possible
B、Nonrepeatable read possible
C、Phantom possible
D、Repeatable read
A、Structured types.
B、References.
C、Collections.
D、All of the above.
A、Map the entire class hierarchy to a single “superclass” table.
B、Map each disjoint concrete class to a table.
C、Map each abstract class to a table.
D、None of the above – all are permissible.
A、Unit of work.
B、Identity map.
C、Data mapper.
D、Lazy load.
A、to program business rules
B、in support of database security
C、to define domains
D、none of the above.
A、Write intent lock.
B、Read lock.
C、Shared lock.
D、No lock.
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