There are still keys but they point to multiple columns.
Select one or more lists.
There are still keys but they point to multiple columns.
The old and new name can be composed of several columns.Combinations with other parts of speech
但该索引可以包含多个列(组合索引),就像电话簿按姓氏和名字进行组织一样。
However, the index can contain multiple columns(a composite index), like the way a telephone directory is organized by last name and first name.Foreach命令实现一个循环,在这里循环变量从一个或多个列表接受值。
The foreach command implements a loop where the loop variable(s)take on values from one or more lists.但是,如果一个或多个列需要单独设置自己的背景色,那么它的视觉完整性的设计就显得非常重要了。
But if one or more columns need to have their own background, it becomes very important to the visual integrity of the design.Cassandra中的表可以使用由多个列组成的复合主键来声明。
A table in Cassandra can bedeclared with a compound primary key consisting of several columns.每个Kudu表必须声明一个主键索引由一个或多个列组成。
Each Kudu table mustdeclare a primary key comprised of one or more columns.
A table can have only one primary key,comprising one or several columns.
A table may have only one primary key,which consists of one or more columns.例如,您可以水平合并多个单元格,以创建横跨多个列的表格标题。
For example, you can merge several cellshorizontally to create a table heading that spans several columns.无论何时我们需要添加与某个对象相关的更多数据,该任务就像添加一个或多个列那样简单。
Whenever you need to add more data about a certain object,the task is as simple as adding one or more columns.每个表都可以有零个或多个统计,每个统计报告一个或多个列的数据。
Each table can have zero or more statistics,and each statistic reports data for one or more columns.客户端可以遍历多个列家族,并且有几种机制可以用来对一次扫描中所产生的行、列和时间戳的数量进行限制。
Clients can iterate over multiple column families, and there are several mechanisms for limiting the rows,columns, and timestamps produced by a scan.
PRIMARY KEY(one or more columns).客户端可以把多个列家族一起分组到一个localitygroup中。
Clients can group multiple column families together into a locality group.如果您指定在步骤2中的多个列,您必须选择将用于唯一标识每个值的列。
If you specified more than one column at step 2, you must choose which column you will use to uniquely identify each value.如果你有多个TIMESTAMP列,只有第一个自动更新。
If you have multiple TIMESTAMP columns in a table, only the first one is updated automatically.索引可以覆盖多个数据列,如像INDEX(columnA,columnB)索引。
Indexes can cover multiple data columns, such as INDEX(columnA, columnB) indexes, which are joint indexes.如果一张表中有多个TIMESTAMP列,只有第一个被自动更新。
If you have multiple TIMESTAMP columns in a table, only the first one is updated automatically.索引可以覆盖多个数据列,如像INDEX(columnA,columnB)索引,这就是联合索引。
Indexes can cover multiple data columns, such as INDEX(columnA, columnB) indexes, which are joint indexes.换句话说,删除一个或多个X列可能会得到同样精度的y预测值。
In other words, eliminating one or more X columns might lead to predicted Y values that are equally accurate.
Each project is made up of one or more components.Kudu表由一个列或多个列组成,每个列都有一个定义的类型。
A Kudu table consists of one or more columns, each with a defined type.
Of one or more related ideas.