scan table 中文意思是什麼

scan table 解釋
掃描表
  • scan : vt （ nn ）1 細看，細察；審視。2 〈口語〉大略一閱；瀏覽。3 按韻節念，按句調讀，標出（詩）的格律（...
  • table : n 1 桌子；飯桌，餐臺。2 手術臺；工作臺；游戲臺；賭臺；寫字臺。3 （飯桌上的）食物，酒菜，伙食；一...
  1. It is composed of three mian protocols : call synchronization protocol, control frame transmission protocol based on arq mechanism and data transmisstion protocol based on slot precontract mechanism. one scan channel table is shared in the hfmanet. the nodes in the same dwell group work in the same scan channel, and the nodes in the different dwell group work in the different scan channel

    該協議的網路拓撲結構採用分散式分群結構，協議不同於傳統的短波點到點及需要中心節點轉發的組網方式，而是初步實現了短波電臺之間多跳組網功能，其協議內容主要包括同步呼叫協議、基於arq的控制幀傳輸協議和基於虛電路及時隙預約方式的數據幀傳輸協議。
  2. Carrying out the data nbank meter scan, the affix that record, delete and modify, report of born, carried out the synthetase working of the polypeptide data nbank meter, carry out many conditions inquire and blurrings inquire, and vivid carried out the paraquinones and can ' t renew the renewal that inquire as a result gather working, carried out the lord to operate from the table, carry out the secret code maintenance function, ultimately, system can also with the guide data nbank with steer the working to the ad libitum and the data nbank of the structure

    實現了數據庫表的瀏覽，記錄的添加、刪除和修改，報表的生成，實現了多數據庫表的連接操作，實現了多條件查詢和模糊查詢，並靈活實現了對不可更新查詢結果集的更新操作，實現了主從表操作，實現了密碼維護功能，最後，系統還可以導入數據庫以對任意同結構的數據庫進行操作。
  3. It will choose indexed access if it has lower cost than table scan

    如果使用索引的開銷比表掃描的開銷低，優化器將選擇索引訪問。
  4. Table scan behavior

    表掃描行為
  5. Avoid indexing very small tables because it is typically more efficient to do a table scan

    因為進行表掃描通常效率更高，所以要避免對非常小的表創建索引。
  6. The optimizer is more likely to choose a full table scan over an index if the value of this parameter is high

    為什麼設置高了，優化器會選擇全表掃描而不選擇索引？
  7. This prevents a large table scan from completely dominating the buffer pool and adversely impacting random operations

    這樣可以防止大規模的表掃描完全支配緩沖池，並惡劣地影響隨機操作。
  8. To save on i o operations, the query processor may choose to scan another index instead of performing a table scan

    為了節省i / o操作，查詢處理器可以選擇掃描另一個索引，而不是執行表掃描。
  9. The optimizer, in the absence of current statistics, is choosing to do a table scan on both tables involved in the join

    在缺少當前統計的情況下，優化器選擇對參與聯接的兩個表進行表掃描。
  10. Specifies that the query optimizer use a table scan, one or more indexes, or a locking method with this table or view and for this select, insert, update, or delete statement

    指定查詢優化器使用一個表掃描、一個或多個索引，或為當前表或視圖以及當前的select 、 insert 、 pdate或delete語句使用鎖定方法。
  11. Moreover, based on in - depth research of " the existing scan - line polygon fill algorithm, the author has introduced a new fast method for clipping arbitrary boundary areas algorithm which uses the edge consistency and the scan - line consistency and adopts sorted chain table, i t can reduce the quantity of calculating intersection points and improve the efficiency of algorithm

    另外，作者在對已有的掃描線填充演算法深入研究的基礎上，介紹一種利用裁剪區域的邊的連貫性和掃描線的連貫性，從而減少求交計算量、提高演算法效率的有序鏈表的快速裁剪演算法。
  12. The first example shows how to force the optimizer to use a nonclustered index to retrieve rows from a table, and the second example forces a table scan by using an index of 0

    優化器提示的兩種方式。第一個示例說明如何強制優化器使用非聚集索引檢索表中的行，第二個示例使用索引0強制執行表掃描。
  13. However, if no indexes are available, the query optimizer must use a table scan

    但如果沒有索引，則查詢優化器必須掃描表。
  14. A table scan generates many disk i o operations and can be resource intensive

    掃描表會有許多磁盤i / o操作，並佔用大量資源。
  15. The method may be a table scan, or may be scanning one or more indexes if they exist

    可能採用的方法包括掃描表和掃描一個或多個索引（如果有） 。
  16. This means that statistics tied to indexes, which are created with full scan when the index is built, require the whole table scan to be refreshed

    這意味著，對于在生成索引時通過完全掃描創建的索引相關統計信息，將需要刷新整個表掃描。
  17. And introduced the information discover technology, which includes topology discovery, host scan and host os detection, etc. and is needed by the isolation technology. and then introduced the principal of end host isolation technology based on ospf, put forward two methods of isolation : configure ip address and configure the routing table. and the compared the use area and the speed of this two methods

    然後介紹了末端隔離技術所需要的網路信息獲取技術原理，包括拓撲發現和主機探測技術，接著介紹了基於ospf的末端隔離技術的原理，提出兩種隔離方式:配置主機ip和配置路由表方式，並對比分析了這兩種方式的使用范圍和速度，介紹了隔離效果驗證與對隔離節點訪問的重定向技術。
  18. In a quick test on a table with 100, 000 rows loaded using a sequence, a normal index was used for most queries returning up to 30 rows, as was the reverse key index, however, when the number of rows went up to 1, 000, 000 the reverse key index was never used and a full table scan was used every time

    在一個用一個序列載入並含100 ， 000行的表上做一個快速的測試，分別用普通索引和逆序索引查詢並返回30行數據，當行數增長到1 ， 000 ， 000 ，將不再使用逆序索引而是每次使用全表掃描。
  19. The chief disturbances are the ripple of direct current power supply to scan pzt, resonant box effect of usual optical table using to weaken the environmental vibration disturbances, and the effect of air flow

    主要干擾為掃描pzt直流電源的波紋系數、減震光學平臺的共振箱作用以及氣流的影響。尤以共振箱影響最大。
  20. Depending on the structural feature of the discernible vector, a plus rule for the discernible vector sets was defined, and a scan vector with concise structure but representing the information table can be obtained through scanning the discernible vector just one time

    根據粗糙集理論知識，定義了一個新概念差別向量，利用差別向量將信息表轉換成差別向量組；根據差別向量的結構特徵，定義了差別向量加法法則；運用這個加法法則僅需對差別向量組掃描一次，就可以形成結構簡潔卻能代表原信息表屬性特徵的掃描向量。
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