Introduction to SQL The SQL statementSELECT SUBSTR('abcdefghij', INSTR('123321234', '2', 3, 2), 2) FROM DUAL;prints gh ab bc 23 gh ab bc 23 ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL Find all the cities whose humidity is 89 SELECT city FROM weather; SELECT city WHERE humidity = 89; SELECT city FROM weather WHERE humidity = 89; SELECT humidity = 89 FROM weather; SELECT city FROM weather; SELECT city WHERE humidity = 89; SELECT city FROM weather WHERE humidity = 89; SELECT humidity = 89 FROM weather; ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL Which of the following command makes the updates performed by the transaction permanent in the database? COMMIT DELETE ROLLBACK TRUNCATE COMMIT DELETE ROLLBACK TRUNCATE ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL SELECT DISTINCT is used if a user wishes to see duplicate columns in a query. False True False True ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL Which of the following group functions ignore NULL values? MAX SUM All of these COUNT MAX SUM All of these COUNT ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL A view is which of the following? A virtual table that can be accessed via SQL commands A virtual table that cannot be accessed via SQL commands A base table that can be accessed via SQL commands A base table that cannot be accessed via SQL commands A virtual table that can be accessed via SQL commands A virtual table that cannot be accessed via SQL commands A base table that can be accessed via SQL commands A base table that cannot be accessed via SQL commands ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS