execution plan

基本解释

So we added indexes on those joining columns and from the following query execution plan, we can see the query cost is greatly reduced.
因此，我們在這些連接列上添加了索引，從下列查詢執行計劃中我們可以看到，查詢成本減少了很多。
From version 9.3 on, there is a nice enhancement of this utility; you can get the detailed query execution plan without ever executing the query.
從版本 9.3 開始，該實用程序得到了較好的提高；您可以獲取詳細的查詢執行計劃，而不必執行該查詢。
At this step, you need to use the tools discussed above to get statistics on the query: its response time, its detailed execution plan, and costs for later in-depth analysis.
在這一步中，需要使用上麪討論的工具來獲取該查詢的統計數據：其響應時間、詳細的執行計劃和成本，以便稍後進行深入分析。

it's not about numbers. It's about a plan and the execution of a plan to have tens-of-thousands of people removed from an areas by killing them, by putting them in camps,by rapes.

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