Introduction to SQL Indexes may be created or dropped at any time. True False True False ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL Which of the following is valid SQL for an Index? CREATE INDEX ID; REMOVE INDEX ID; ADD INDEX ID; CHANGE INDEX ID; CREATE INDEX ID; REMOVE INDEX ID; ADD INDEX ID; CHANGE INDEX ID; ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL Which of the following is a valid SQL type? NUMERIC CHARACTER FLOAT All of these NUMERIC CHARACTER FLOAT All of these ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL Indexes can usually be created for both primary and secondary keys. False True False True ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL The SQL statementSELECT SUBSTR('abcdefghij', INSTR('123321234', '2', 3, 2), 2) FROM DUAL;prints ab bc 23 gh ab bc 23 gh ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL Find all the cities whose humidity is 89 SELECT city FROM weather WHERE humidity = 89; SELECT city FROM weather; SELECT city WHERE humidity = 89; SELECT humidity = 89 FROM weather; SELECT city FROM weather WHERE humidity = 89; SELECT city FROM weather; SELECT city WHERE humidity = 89; SELECT humidity = 89 FROM weather; ANSWER DOWNLOAD EXAMIANS APP
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