青年中文primary key的意思
primary key中文翻譯：
主（關）鍵（字）
主關鍵字，[計]主鍵標
相似詞語短語
primary cell───[電]原電池
primary aim───主要目的；首要目的
primary cares───初級治療，初級護理；基層醫療
primary cells───原電池
primary metal───原料金屬
primary tense───主要時式
primary care───初級治療，初級護理；基層醫療
primary role───主要任務；主要角色
primary task───主任務
雙語使用場景
A primary key is a column a unique value for each row.───主鍵是指每記錄行帶有唯一值的欄目.
Gets the row specified by the primary key value.───獲取包含指定的主鍵值的行.
However, you can change the order of columns after the primary key is created.───但是, 可在創建主鍵后更改列的順序.
RemoveExceptionRemove an EJB object identified by its primary key.───刪除由主鍵標識的EJB對象.
So what is a primary key?───那么什么是主鍵？
Right - click the column you want to set as the primary key.───右擊要將其設置為主鍵的列.
This index requires each value in the primary key to be unique.───該索引要求主鍵中的每個值都唯一.
Accessor 1 contains all columns except the primary key.───訪問器1包含除主鍵外的所有列.
Make sure each table has a primary key.───確保每個表都有一個主鍵。
Recreate the primary key.───重新創建主鍵。
Right - click the row selector for the column and select Set Primary Key.───右擊該列的行選擇器,然后選擇“設置主鍵”.
You must specify the primary key for a table.───您必須指定主鍵的表.
The primary key can be specified only for the top root view.───不可以在一列或多列上同時有主鍵和唯一約束.
Defining the table's primary key ( after creating columns ).───在創建列后 定義表 的主鍵.
The element defines the primary key of the main table.───元素定義了主表格中的主鍵.
The primary key can't be a primitive type.───主類型不能成為主鍵.
Note: The primary key field is numeric by default.───注意: 主鍵字段默認為數值型.
Choose two fields from the database table that comprise the primary key.───從數據庫表中選擇構成主關鍵字的兩個字段.
英語使用場景
RemoveExceptionRemove an EJB object identified by its primary key.
We keep only a compound primary key and a secondary index for each row[sentencedict.com], and answer all queries from a single index.
Note: The primary key field is numeric by default.
Primary key property is invalid; please validate database.
There is exactly one primary key and at most one secondary key for the wireless Hosted Hetwork on any computer.
Gets the row specified by the primary key value.
The primary key can't be a primitive type.
You must specify the primary key for a table.
Accessor 1 contains all columns except the primary key.