... operating-performance income statement 营业实绩收益表 operation statement营业表, 损益表 partial income statement 部分损益表 ...
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[会计]?损益表
...损益表 account of business; earnings statement，income statement; income account; income sheet; income statement / profit and loss statement; income statement/profit-and-loss account; operation statement; p.& l profit and loss; p.
Since only one row is expected in the result set from this SELECT statement, the table scan here is considered an expensive operation.
因为该select语句的结果集中只期望一行，所以表扫描在这里被认为是代价较高的操作。
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Among the three LocalVariables in the operation model, we are particularly concerned with the one called result, since it will hold the value to be returned after the last statement of the operation.