MySQL, Short WHERE query

Here is my example query.

SELECT * FROM `table` WHERE `id` = '1' OR `id` = '8' OR `id` = '12'

Is there a quicker way for WHERE part开发者_如何学JAVA?

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You could use the IN clause:

SELECT * 
  FROM `table` 
 WHERE `id` IN ('1', '8','12')

Since the query optimizer will convert this query into an execution plan which will be very similar to the sequence of ORs it won't really make a performance difference. It's about aesthetics and/or less typing :)

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Not sure if it runs faster, but it may read more cleanly:

SELECT * ... WHERE ID in ('1', '8', '12' )

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To check for multiple potential values in a where clause for the same field, you need to use IN.

In your example, you would use:

SELECT *
FROM `table`
WHERE `id` IN (1, 8, 12)

This feature is also useful for using subqueries, such as:

SELECT *
FROM `table`
WHERE `id` IN (
    SELECT `id`
    FROM `table2`
)