Introduction to SQL You can add a row using SQL in a database with which of the following? CREATE INSERT MAKE ADD CREATE INSERT MAKE ADD ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL A dynamic view is one whose contents materialize when referenced. True False True False ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL Which of the following SQL commands is used to retrieve data? JOIN INSERT SELECT DELETE JOIN INSERT SELECT DELETE ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL Which of the following query finds the total rating of the sailors who have reserved boat "103"? SELECT SUM(s.rating) FROM sailors s, reserves r WHERE s.sid = r.sid AND r.bid = 103 SELECT SUM(s.rating) FROM sailors s, reserves r AND r.bid = 103; c) SELECT COUNT(s.rating) FROM sailors s, reserves r WHERE s.sid = r.sid AND r.bid = 103 SELECT s.rating FROM sailors s, reserves r WHERE s.sid = r.sid AND r.bid = 103 SELECT SUM(s.rating) FROM sailors s, reserves r WHERE s.sid = r.sid AND r.bid = 103 SELECT SUM(s.rating) FROM sailors s, reserves r AND r.bid = 103; c) SELECT COUNT(s.rating) FROM sailors s, reserves r WHERE s.sid = r.sid AND r.bid = 103 SELECT s.rating FROM sailors s, reserves r WHERE s.sid = r.sid AND r.bid = 103 ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL The SQL statementSELECT SUBSTR('123456789', INSTR('abcabcabc', 'b'), 4) FROM DUAL; 456789 2345 6789 1234 456789 2345 6789 1234 ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL What is a view? None of these A view is a special stored procedure executed when certain event occurs. A view is a virtual table which results of executing a pre-compiled query. A view is not part of the physical database schema, while the regular tables are. A view is a database diagram. None of these A view is a special stored procedure executed when certain event occurs. A view is a virtual table which results of executing a pre-compiled query. A view is not part of the physical database schema, while the regular tables are. A view is a database diagram. ANSWER DOWNLOAD EXAMIANS APP
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