Introduction to SQL
Which of the following is the original purpose of SQL?

To specify the syntax and semantics of SQL data definition language
To specify the syntax and semantics of SQL manipulation language
All of these
To define the data structures

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Introduction to SQL
Find the name of cities with all entries whose temperature is in the range of 71 and 89

SELECT * FROM weather WHERE temperature NOT IN (71 to 89);
SELECT * FROM weather WHERE temperature BETWEEN 71 AND 89;
SELECT * FROM weather WHERE temperature NOT IN (71 and 89);
SELECT * FROM weather WHERE temperature NOT BETWEEN 71 to 89;

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