Which of the following statements is correct? (refer to the tables in the JustLee Books database.)a. If a subquery is used in the outer query’s FROM clause, the data in the temporarytable can’t be referenced by clauses used in the outer query.b. The temporary table created by a subquery in the outer query’s FROM clause must be assigned a table alias, or it can’t be joined with another table by using the JOIN keyword.c. If a temporary table is created through a subquery in the outer query’s FROM clause, the data in the temporary table can be referenced by another clause in the outer query.d. none of the above
Which of the following statements is correct? (refer to the tables in the JustLee Books database.)a. If a subquery is used in the outer query’s FROM clause, the data in the temporarytable can’t be referenced by clauses used in the outer query.b. The temporary table created by a subquery in the outer query’s FROM clause must be assigned a table alias, or it can’t be joined with another table by using the JOIN keyword.c. If a temporary table is created through a subquery in the outer query’s FROM clause, the data in the temporary table can be referenced by another clause in the outer query.d. none of the above
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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Which of the following statements is correct? (refer to the tables in the JustLee Books
a. If a subquery is used in the outer query’s FROM clause, the data in the temporary
table can’t be referenced by clauses used in the outer query.
b. The temporary table created by a subquery in the outer query’s FROM clause must be assigned a table alias, or it can’t be joined with another table by using the JOIN keyword.
c. If a temporary table is created through a subquery in the outer query’s FROM clause,
the data in the temporary table can be referenced by another clause in the outer query.
d. none of the above
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