1Z0-061 · Question #57
View the Exhibit and examine the structure of the product, component, and PDT_COMP tables. In product table, PDTNO is the primary key. In component table, COMPNO is the primary key. In PDT_COMP…
The correct answer is C. RIGHT OUTER JOIN; LEFT OUTER JOIN. See the full explanation below for the reasoning.
Question
View the Exhibit and examine the structure of the product, component, and PDT_COMP tables. In product table, PDTNO is the primary key. In component table, COMPNO is the primary key. In PDT_COMP table, <PDTNO, COMPNO) is the primary key, PDTNO is the foreign key referencing PDTNO in product table and COMPNO is the foreign key referencing the COMPNO in component table. You want to generate a report listing the product names and their corresponding component names, if the component names and product names exist. Evaluate the following query:
SQL>SELECT pdtno, pdtname, compno, compname FROM product _____________ pdt_comp USING (pdtno) ____________ component USING (compno) WHERE compname IS NOT NULL; Which combination of joins used in the blanks in the above query gives the correct output?
Exhibit
Options
- AJOIN; JOIN
- BFULL OUTER JOIN; FULL OUTER JOIN
- CRIGHT OUTER JOIN; LEFT OUTER JOIN
- DLEFT OUTER JOIN; RIGHT OUTER JOIN
How the community answered
(32 responses)- A16% (5)
- B3% (1)
- C75% (24)
- D6% (2)
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