execution costs中文什么意思

执行成本

• costs of execution:    执行的费用
• execution:    n. 1.实行，履行，执行；贯彻。 ...
• the execution:    执行死刑

例句与用法

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1. query execution costs are estimated by the query optimizer
   由查询优化器估计查询执行开销。
2. approximate query execution costs are estimated by the query optimizer
   由查询优化器估计查询执行的大致开销。
3. automatically determines the column order in recommended indexes based on query execution cost
   基于查询执行开销，按照建议的索引自动确定列的顺序。
4. the serial execution cost of the query is not high enough to consider an alternative, parallel execution plan
   查询的串行执行成本并不过高，无需考虑替代的并行执行计划。
5. so far, all we have done is estimated the one-time execution cost of each of the two proposed coding styles
   到目前为止，我们所做的只是评估了所提到的两种编码风格中每一种一次性执行的开销。