How to declare a variable in MySQL?

Question

How to declare a variable in mysql, so that my second query can use it?

I would like to write something like:

SET start = 1;
SET finish = 10;

SELECT         


        

Answer 1

Use set or select

SET @counter := 100;
SELECT @variable_name := value;

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example :

SELECT @price := MAX(product.price)
FROM product