The number of column values copied into the array.
复制到数组中的列值数。
Query output has a fixed number of columns, with each row filling in values for every fixed column.
在查询输出中，列的数量是固定的，每行填入了每个固定列的值。
While all rows in a result set share the same number of columns and column types, different result sets can have different column layouts.
一个结果集中的所有行具有相同的列数量和列类型，而不同的结果集可以具有不同的列布局。
So, in most cases you will need a meaningful header, an optimal number of columns, pagination, alternating row colors, proper column alignment, sorting and filtering capabilities and much more.
因此，在大多数情况下，需要一个有意义的表头，最佳的列数、分页、交替行颜色、适当列对齐、排序和过滤功能等等。
For a column family, different rows in the table can have a different number of members.
对于一个列族，表中的不同行可以拥有不同数量的成员。
Each column family can have an arbitrary number of members identified by labels (or qualifiers).
每个列族可以拥有任意数量的成员，它们通过标签(或修饰符)识别。
Statistics about individual columns such as he number of distinct values in a column.
有关单个列的统计信息，比如一列中唯一值的数量。
The second operator extracts a number of relational column values from various XML nodes.
第二个操作符从不同的xml节点提取一些关系列值。
For example, if you select the WI_SEVERITY column, the results show the number of work items with that severity on each day.
例如，如果您选择了wi_severity列，那么结果显示了每一天严重性的工作项的数量。
This column shows the number of assets that matched your search criteria compared to the total number of assets in the application database.
该列显示了资源的数量，并与程序数据库中资源的总体数量相比较以匹配您的搜索标准。
For TP, design decisions include selecting the column to use as the table partitioning key and number of partitions.
对于TP，设计决定包括选择用作表分区键的列和分区的数量。
This aggregation takes all the sentences in a column and counts the words, returning an integer value containing the number of words for that column.
此聚合获取一列中的所有句子并计算字数，返回一个包含该列的字数的整数值。
Therefore, the maximum number of characters that can be stored in the column might be reduced if non-ASCII characters are involved.
因此，如果涉及非ascii字符，那么列中可以存储的最大字符数可能会减少。
COLCARDF (see number 4 in Figure 5) : column cardinality, which denotes the estimated number of distinct values in the column.
COLCARDF(见图5中4)：列基数，表示评估的列中不同值的数目。
The number of occurrences of frequently used column values.
经常使用的列值的出现次数。
Similarly, if you want to display a view in a narrow column, you might choose a small number of pertinent columns of information to display.
同样，如果需要在窄栏中显示视图，则可以选择显示少量相关的信息栏。
For each distribution channel, one column that denotes the number of entries for the customer for that particular channel.
对于每一个分销渠道来说，一个列表示适用于特别渠道的客户条目的数量。
The large number of distinct values in the pdb_id column ensures a relatively even distribution of rows over the database partitions.
pdb_id列中各异的值数量很大，这就确保了跨数据库分区可以获得相对均衡的行分布。
You can use the following functions and tests to count the number of values in a column
可利用如下函数及测试来计数一个列中值的数量
The number in the Cycles column lists the number of CPU cycles that the process used during the interval that PTT collected statistics.
Cycles栏中的数字列出了在PTT收集统计数据的时间间隔内那个进程所使用的CPU 周期数。
The Number column indicates the number of logical logs sequentially.
Number列显示逻辑日志的编号。
The num_quantiles database configuration parameter specifies the number of sections into which the column data values should be grouped.
num_quantiles数据库配置参数指定应将列数据值分成的组数。
The second column specifies the number of distinct elements within the range, and the third column specifies the highest values within the range.
第 2列指定当前范围中不同元素的数量，第 3 列指定当前范围中的最大值。
The page section in the output indicates current paging status of your system; pi column indicates number of pages read into the memory and po column indicates number of pages paged out of the memory.
输出的page部分指示系统的当前分页状态；pi列指示读入内存的页数目，而po 列则指示移出内存的页数目。
In addition to the scans column, the TCB index Stats section of the db2pd utility results has a IxOnlyScns column that shows the number of index only scans.
除了scans列之外，db 2 pd实用程序的TCBIndexStats部分还有一个ixonlyscns列，它显示仅扫描索引的数量。
Column group Statistics obtains the number of distinct combinations of values for a group of columns.
列组(ColumnGroup)统计信息将获得一组列的不同值组合的数目。
In explicit UPDATE STATISTICS operations in MEDIUM mode, a new SAMPLING SIZE option in the resolution clause specifies the minimum number of rows to sample for column distributions.
在使用MEDIUM模式的显式的UPDATESTATISTICS操作中，可以在resolution子句中使用新的SAMPLINGSIZE选项为列分布抽样指定最小行数。
U - number of unknown answers in the first pass of the repetition, i.e. the number of questions that have one or more dots in their first column of the repetition scores field.
U-没答对问题的个数，也就是在重复学习评分栏里有一个或多个点的问题个数。
The purpose of this column is to show the number of the recursive step n that produced the row.
这个列的作用是表明产生行的递归步骤n 属于第几步。
The purpose of this column is to show the number of the recursive step n that produced the row.
这个列的作用是表明产生行的递归步骤n 属于第几步。
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