但是，它们不包含生成s QL查询所需的某些信息，比如联结。

However, they do not contain some information, such as joins, which are needed to generate SQL queries.

youdao

在横切比较工具中比较这些图，以发现受方面影响的联结点所出现的不希望的改变。

Compare the maps in the crosscutting comparison tool to detect any unwanted changes to the join points affected by your aspects.

youdao

因为这是一个内联结，所以这个视图不包含出现在wells表中但没有出现在wells _ pts表中的记录(因为这些记录具有空的或无效的坐标)。

Since this is an inner join, this view has no rows for records that appear in Wells but not in wells_pts (because they have null or invalid coordinates).

youdao