index key 中文意思是什麼

index key 解釋
索引鍵
  • index : n (pl es dices )1 索引。2 指標,標準,標志。3 示[食]指 (=index finger)。4 指數。5 【印刷】指...
  • key : n 1 鑰匙。2 要害,關口,要沖。3 關鍵,線索,秘訣;解法。4 (外國書的)直譯本,圖例,題解,圖解,...
  1. Vsam arranges records by an index key, relative record number, or relative byte addressing

    Vsam通過一個索引鍵值,相關記錄號或者相關位元組地址來組織記錄。
  2. When locking rows or index key ranges, the database engine places an intent lock on the pages containing the rows or keys

    當鎖定行或索引鍵范圍時,數據庫引擎將在包含行或鍵的頁上放置意向鎖。
  3. For a clustered table, the row locator is the clustered index key

    對于聚集表,行定位器是聚集索引鍵。
  4. A nonclustered index contains the nonclustered index key values and each key value entry has a pointer to the data row that contains the key value

    非聚集索引包含非聚集索引鍵值,並且每個鍵值項都有指向包含該鍵值的數據行的指針。
  5. Create index statement, the index key could be defined as

    子句,可以將索引鍵定義為(
  6. List of the column ids of the columns that make up the index key

    組成索引鍵的列id列表。
  7. The maximum size for an index key is 900 bytes

    索引鍵的最大大小為900位元組。如果創建索引時,
  8. To display the index key columns, use

    若要顯示索引鍵列,請使用
  9. They can be data types not allowed as index key columns

    它們可以是不允許作為索引鍵列的數據類型。
  10. The data rows are stored in order based on the clustered index key

    數據行基於聚集索引鍵按順序存儲。
  11. Up to 16 columns can be combined into a single composite index key

    一個組合索引鍵中最多可組合16列。
  12. These column modification restrictions also apply to index key columns

    這些列修改限制也適用於索引鍵列。
  13. This means no two rows can have the same value for the index key

    這意味著任何兩行都不能有相同的索引鍵值。
  14. All the columns in a composite index key must be in the same table or view

    組合索引鍵中的所有列必須在同一個表或視圖中。
  15. Neither column of the output result set is a key, but together they form an index key

    輸出結果集中的任一列都不是一個鍵,但是它們結合在一起將形成一個索引鍵。
  16. The clustered index is implemented as a b - tree index structure that supports fast retrieval of the rows, based on their clustered index key values

    聚集索引按b樹索引結構實現, b樹索引結構支持基於聚集索引鍵值對行進行快速檢索。
  17. Columns ; however, such columns cannot be included in the clustered index key

    列;但聚集索引健中不能包含這類列。
  18. Including whether an index exists, the organization of the index number of leaf pages and number of levels, the number of discrete values for the index key, and whether the index is clustered

    的當前狀態,包括是否存在索引、索引的組織(葉子頁的數量和級別的數量) 、索引鍵的離散值的數量以及是否群集索引;
  19. An index in which the logical order of the index key values is different than the physical order of the corresponding rows in a table. the index contains row locators that point to the storage location of the table data

    1 .多維數據集中的一組操作,用於重新生成多維數據集的結構,將數據加載到多維結構中,計算匯總信息,並保存預先計算的聚合。
  20. It should be noted that the db2 index key size limit is 1024 bytes, and the index key limit includes all overhead bytes

    應該注意, db2索引鍵的大小限制為1024位元組,而且索引鍵限制包括佔用的所有位元組。
分享友人