表数据倾斜指的是特定的一些数据库分区上的某个表内的记录数与这个表所跨的所有数据库分区的平均记录数之间的差额。
Table data skew refers to a difference between the number of records in a table on particular database partitions and the average number of records across all database partitions for this table.
关系数据库的核心是以记录表示数据，记录存放在数据库表，数据库使用查询语言(SQL)对数据进行搜索与查询，同时，数据库对各个数据表进行关联。
The database offers a way to search the records using a query language, nowadays SQL. The database offers a way to correlate information from multiple tables.
用node和 node_revisions表中的数据库记录数据填充这个节点对象（node object），这个记录的主键字段值与URL 中的节点id相同。
This node object is populated with data from the database record in the node and node_revisions tables, whose primary key field value is the same as the node id in the URL.
数据记录：每各班组都要记录表具读数，操作人员一定要明白数据采集的作用。
METER READINGS: Reading's should be taken during each shift and the results thoroughly understood by the operating staff.
数据库模块中数据的存储主要设计了三个记录表：读入数据记录表、写至数据记录表和网页数据记录表；
The design of graphics module is based upon vector graph. Database module includes three tables. They are reading data table, writing data table and web data table.
数据库模块中数据的存储主要设计了三个记录表：读入数据记录表、写至数据记录表和网页数据记录表；
The design of graphics module is based upon vector graph. Database module includes three tables. They are reading data table, writing data table and web data table.
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