query catalog 中文意思是什麼
query catalog
解釋
查詢一覽表-
The equipment guide is revised on an annual basis and the updating of information relies heavily on voluntary data provided from the manufacturers. additions in this issue include a generic introduction to the taiwan environment industry and an index listing of domestic environment protection equipments. an english version of the domestic equipment manufacturers catalog is also added to facilitate marketing the fine quality environment protection product to international customers with a goal of overseas market expansion and provide fast and effective query service
便覽逐年增修新版，資料更新多賴廠商所提供資料，並增設我環保產業一般性介紹，國產設備一覽表與實用索引，本次國產設備廠商名錄並新訂英文版，以便向國外廠商推銷我國優良環保產品，擴展海外市場，提供各界快又有效率的查詢服務。 -
This article can only provide a brief introduction as the event catalog would on its own require a further article to describe how users can add, remove, and query event definitions and categories
本文僅作簡短介紹，因為事件目錄本身需要更多的文章來描述用戶如何添加、刪除和查詢事件定義和類型。 -
Query the event catalog
查詢事件目錄 -
To accomplish this, the db2 optimizer applies query cost formulas that evaluate and weigh four factors for each potential access path : the cpu cost, the i o cost, statistical information in the db2 system catalog, and the actual sql statement
要實現這個目標， db2優化器會應用查詢成本公式，該公式對每條可能的存取路徑的四個因素進行評估和權衡： cpu成本、 i / o成本、 db2系統目錄中的統計信息和實際的sql語句。 -
The optimizer uses the following system catalog information as it creates a query plan
當優化器創建查詢計劃時，它將使用下列系統目錄信息： -
To find out all accounts with privileges, you can query each of the system catalog views and combine the results together using the union operator, as shown in
要查明具有特權的所有帳號，可以查詢每個系統編目視圖並使用union操作符將結果組合在一起，如
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