primary key 中文意思是什麼
primary key
解釋
（主健，關系模型）：在一個表中用來標識記錄唯一性的候選鍵。-
Automatic primary key and unknown primary key generation for cmp
自動為cmp生成主鍵和未知的主鍵 -
Note : the primary key field is numeric by default
注意：主鍵欄位默認為數值型。 -
For an rda tracked table, the updates, inserts, and deletes are tracked based on the primary key
對于rda跟蹤的表，基於主鍵跟蹤更新、插入和刪除。 -
The reason why these other tables are missing is probably because they do not have a primary key index field associated with them : only the
其他表為什麼沒有出現，可能是因為它們沒有相關聯的主鍵（索引欄位） ：只有 -
Ejb primary key class
Ejb主要關鍵字類 -
Primary key class
主要關鍵字類 -
List are not the names of the primary key columns
列表中顯示的項不是主鍵列的名稱。 -
For a primary key column, but it can be set for any column
，但也可為任意列設置該值。 -
Is not set and primary key information is present in the
中存在主鍵信息，可使用 -
The query returns column and primary key information
此查詢返回列和主鍵信息。 -
A primary key can also be created by selecting the primary key tool in the tool palette and clicking on a table
主鍵也可以透過選擇工具面板中的primary key工具並在表上點選一下進行建立。 -
If no primary key exists, incoming rows are appended to the
如果主鍵不存在，則傳入行會追加到 -
Second, the primary key contrain names are duplicated
其次，主鍵約束名重名了。 -
Is defined to return a primary key instead of void
來返回一個主鍵而不是void值。 -
The table does not have a primary key
該表沒有主鍵。 -
Is thrown when invoking the following methods to access a row in a table that has no primary key
在調用以下方法訪問沒有主鍵的表中的行時引發 -
Represents the exception that is thrown when you try to access a row in a table that has no primary key
表示在嘗試訪問沒有主鍵的表中的行時引發的異常。 -
The method returns the current rows in order of primary key or lacking one, order of addition
該方法按照主鍵順序返回當前行（如果沒有主鍵，則按照添加順序） 。 -
If the index enforces a primary key or unique constraint and the index definition is not altered in any way, the index is dropped and re - created preserving the existing constraint
如果索引強制primary key或unique約束，且索引定義沒有任何改變，則會刪除並重新創建該索引並保留現有約束。 -
The column or columns serving as the unique row identifier for a table are the primary key of the table
作為表的唯一行標識符的列是表的主鍵。
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