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INF3707 Exam Questions & Answers
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INF3707 Exam Questions & Answers
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INF3707 Exam Questions & AnswersWhich of the followmg statements 1s true about sub quenes? A. A sub query cannot be used m an SQL query statement that uses group functions
B.A sub query can be used only m SQL query statements C.A sub query can retneve zero or more rows
D. A sub query should retrieve only one row - ANSWER-C
What is the syntax of the CREATE TABLE statementy - ANSWER-CREATE TABLE acctmanager
(amid VARCHAR2(4),
amname VARCHAR2(20),
amedate DATE DEFAULT
SYSDATE,
region CHAR(2));
The keywords CREATE TABLE instruct Oracle 12c to create a table. Optionally, a
schema can be included to indicate who "owns" the table. For example, if the person
creating the table is also the person who owns the table, the schema can be omitted
What happens when a DROP TABLE command is issued - ANSWER-After the table has been dropped, the table name is no longer valid, and the
table can't be accessed by any commands.
In recent
Oracle versions, a dropped table is now placed in a recycle bin and can be restored—both
table structure and data!
How to show the second highest retail price - ANSWER-SELECT title, retail FROM books
WHERE ISBN IN (SELECT ISBN FROM books
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