执行副总裁 Executive Vice-President ; EVP ; Executive VP ; Executive Vice President
执行总监 Executive Director ; Chief Executive Officer ; CEO
高级执行副总裁 EVP ; SEVP ; Senior Executive Vice President
市场执行总监 Executive Marketing Director
首席执行官/总经理 CEO/GM/President
总执行长 Chief Executive Officer
总裁/首席执行官 President/CEO ; Chief Executive Officer
执行总结 Executive Summary ; Sum-up of performing
执行总编 Managing Editor ; Chief Reviewing Editor
首席执行总裁 chief executive officer ; CEO
准备阶段需要的时间占语句总执行时间的很大一部分。
The time required for the prepare phase of the SQL statement makes up a significant portion of the statement's overall execution time.
DB 2优化器计算不同的访问计划，并试图找出总执行成本最低的计划。
The DB2 optimizer computes different access plans and tries to find the one where the overall execution costs are minimal.
最重要的是总执行成本，因为总执行成本关系到应用程序的响应时间。
But most important is the total execution time because the total execution time is responsible for the response time of the application.
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