A、Our teacher tells us some stories today.
B、Tom made the girl cry.
C、Please give it to her.
D、She gave me a cup of tea.
A、Our teacher tells us some stories today.
B、Tom made the girl cry.
C、Please give it to her.
D、She gave me a cup of tea.
Consider the following relational schema employee(empno, name, office, age) books(isbn, title, authors, publishe r) loan(empno, isbn, date) Write the following queries in relational algebra. a. Find the names of employees who have borrowed a book published by McGraw-Hill. b. Find the names of employees who have borrowed all books published by McGraw-Hill. c. Find the names of employees who have borrowed more than five different books published by McGraw-Hill. d. For each publisher, find the names of employees who have borrowed more than five books of that publisher.
A、Fact is usually the objective reality.
B、Opinion can be only a subjective statement.
C、Opinion is often an interpretation.
D、Facts may be biased and arguable.
A、object.
B、direct object
C、attribute
D、predicate
A、Construct analysis model
B、Identify analysis classes
C、Determine interface specification
D、Evaluate analysis model
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