The row key is the primary key of the table and is typically a string.
行键是表的主键，通常是一个字符串。
This means that every row in the point table must have a key value (consisting, in this case, of two column values) that must also exist in the source table.
这意味着点表中每一行的键值（在这个示例中，由两个列值组成）必须也在源表中存在。
The surrogate key values start with a number, for example "1", for the first row of the table, and is incremented by one for each row thereafter.
代理键的值从某一个数字开始，例如 "1"，以这个数字作为该列在表中第一行的值，之后的每一行中该列的值都按 1递增。
It queries your database, indexes each column in each row of the result, and ties each index entry to the row's primary key.
它将查询数据库，为结果的每行中的每列建立索引，并且将每个索引条目绑定到行的主键上。
A primary key is a special thing in the relational model: It must be unique to each record (row) of a table.
在关系模型中主键是特殊的事物：它对于表的每个记录(行)必须是唯一的。
A partitioning key is a column (or group of columns) that is used to determine the partition in which a particular row of data is stored.
分区键是用于确定特定一行数据存储在哪个分区的一个列(或一组列)。
Then for each row from the fact table scan, the foreign key is also hashed and probed into the bit vector to determine whether the current fact table row is filtered out.
然后针对事实表扫描的每一行，外键也被散列并探测到位向量中，从而判断当前的事实表行是否被过滤掉了。
The best practice is to have many columns in a row, as opposed to linking different rows across different tables via key columns.
相对于通过键列跨不同的表链接不同行，最佳实践将是在一行中有许多列。
That is it only brings in one row of data for a unique key combination.
即它在一个唯一键组合上只会产生一行数据。
To define a composite key, you simply take some attributes from the domain and combine them to provide the required degree of row uniqueness.
要定义组合键，只需从该领域中选择一些属性，并将其组合在一起，提供所需的行唯一性程度。
In a DPF environment, each table row is distributed to a database partition according to the distribution key specified in the CREATE table statement.
在DPF环境中，根据CREATE table语句中指定的分区键，表中的每个行被分布到一个分区上。
However, each row must have a unique primary key, which is a sort of name for that particular bundle of data.
不过，每一行的主键(一种用于特定一组数据的名称)必须是唯一的。
The optimizer will deduce key value selection based on the functional dependency of the column within the row.
优化器将根据行中列的函数依赖性来推断关键值选择。
Before an RPG program updates a row accessed by a key it must perform a read operation to lock the row for update intent.
R PG程序更新通过键访问的行之前，必须执行一个读操作，以便锁定该行，进行更新。
In this case the row returned to RPG is dependent on which of the duplicate key handling DDS keywords (LIFO (default), FIFO or LCFO) were used when creating the keyed logical file.
在这种情况下，返回R PG的行取决于创建键逻辑文件时使用的是哪个用于处理DDS关键字的重复键(LIFO(默认值)、FIFO或LCFO)。
We keep only a compound primary key and a secondary index for each row, and answer all queries from a single index.
我们只保留了一个组合主键和一个辅助索引来完成所有的查询。
The key of the row is the ID of the document; the value is the document itself.
行的键是文档的ID；值就是文档本身。
Since the username is a primary key, there will be at most one matching row.
因为用户名(username)是主键，最多将有一行匹配。
This method accepts five arguments: the row index, the column index, the cell value, the spreadsheet key, and the worksheet key.
该方法接受5个参数：行索引、列索引、单元格值、电子表格键和工作表键。
You saw how the findByPrimaryKey causes the container to retrieve a row in a database using the primary key of the EJB component as the primary key of the row in the database.
您已看到了findByPrimaryKey 子句如何让容器使用EJB组件中的主键作为数据库中行的主键来检索数据库中的行。
InsertJSON expects two input parameters: the unique key value for primary key and the row data in JSON format.
insertJSON需要两个输入参数：主键的惟一键值与json格式的行数据。
DB2's row compression, unlike Oracle's key compression, does not require keys to be specified.
DB2的行压缩不像Oracle的键压缩，它不需要指定键。
A partitioned key is a column, or group of columns, used to determine the partition in which the particular row of data is stored.
分区键(partitioned key)是指一列或一组列，用于确定特定行数据所存储的分区。
Syscat.tabconst Contains a row for each unique (u), primary key (p), foreign key (f), or table check (k) constraint db2 select constname, tabname, type from syscat.tabconst.
tabconst为每个唯一性(U)、主键(p)、外键(f)或者表检查(K)约束保持一个行db2select constname,tabname,typefrom syscat . tabconst。
Create a new row in the transtimes table with timestamp, unique key, and connect time.
用时间戳、惟一键和连接时间在transtimes表中创建一个新行。
Key Item locked: the key pointing to the locked row.
KeyItemLocked：指向锁定的行的键。
In order to build the WHERE part of the DeleteCommand, you need to obtain the value of the key field for the current row.
为了构建DeleteCommand的WHERE部分，您需要获取当前行的关键字段值。
These next key locks are only obtained when the key INSERT finds that a scanner with a Repeatable Read (RR) isolation level has a row lock on the next-higher key in the index.
这些nextkey锁只有在keyINSERT发现带有RepeatableRead (RR)隔离级别的扫描器在索引中的next -higher键上有一个行锁时才能获得。
These next key locks are only obtained when the key INSERT finds that a scanner with a Repeatable Read (RR) isolation level has a row lock on the next-higher key in the index.
这些nextkey锁只有在keyINSERT发现带有RepeatableRead (RR)隔离级别的扫描器在索引中的next -higher键上有一个行锁时才能获得。
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