Increment and decrement operators cause side-effects when you use them in expressions that cannot be replicated in SQL and are, therefore, not supported.
在无法复制到SQL中的表达式中使用增量和减量运算符时会产生副作用,因而不支持此类运算符。
These include pre- and post-increment/decrement ( i++, --foo ), add/sub/mult/div assign operators ( a+=3, b*=2, c/=2.2, d-=6.2 ).
其中包括前后加/减(i++、--foo), 加减乘除赋值运算符(a+=3、b*=2、c/=2.2、d-=6.2)。
These include pre- and post-increment/decrement ( i++, --foo ), add/sub/mult/div assign operators ( a+=3, b*=2, c/=2.2, d-=6.2 ).
其中包括前后加/减(i++、--foo), 加减乘除赋值运算符(a+=3、b*=2、c/=2.2、d-=6.2)。
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