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6.3.1.2 比較演算子 »
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6.3.1.1. かっこ

( ... )

式での評価を特定の順序で行うよう強制するには、次のようにかっこを使用します。 

mysql> SELECT 1+2*3;
        -> 7
mysql> SELECT (1+2)*3;
        -> 9

This is a translation of the MySQL Reference Manual that can be found at dev.mysql.com. The original Reference Manual is in English, and this translation is not necessarily as up to date as the English version.