In SQL Programming, My questions are about ANY and ALL operators and their uses in queries?

Question

These two operators tend to get mixed up and miss-used.
Please show me a situation in which you would use each of these operators and why you would choose that particular operator for the task. Are there occasions where you could design a query to use either?

Answer 1

Any and All are used with subqueries and the results ( for a code example have a look at http://www.nettakeaway.com/tp/article/22/all-and-any-in-sql ).

But in brief - all means the condition must apply to every row in the subquery, any means it only needs to apply to one row to be true.

If you wanted to find if something is the lowest price, you'd say price < all (), if you want to say it isn't the most expensive you'd use price < any ().

Answer 2

SQL Programming



http://social.msdn.microsoft.com/Search/en-us?query=SQL+Programming

Answer 3

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Answer 4

The way in which i was taught to do retreive all data on an SQL table was by using the asterix



For Example in PHP;



$sql = "SELECT * FROM table_name";

mysql_query($sql);



I would only assume that ANY would be the same function

Answer 5

Here's some examples:

http://www.sql-tutorial.ru/en/book_using_any_all_keywords_with_comparison_predicates.html