PC-based DBMSs offer both a data dictionary and a catalog.
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Q1: In two-phase locking,the second phase is the
Q4: _ denies access by other users to
Q5: In some database systems,such as Microsoft Access,users
Q6: Data about the data in a database
Q7: _ contain information about table relationships,views,indexes,users,privileges,and replicated
Q8: When the DBMS locks more rows and
Q8: The successful completion of a transaction is
Q9: Concentric update occurs when multiple users make
Q11: The more important it is to avoid
Q11: Each user transaction requires only one lock.
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