join query 连接查询
spatial join query 空间连接查询
multi join query 多元连接查询
Join Query with Additional Conditions 附带条件的连接
Multi-Join Query 多连接查询
Query Design Join 查询设计连接
The experiments prove that th~ rewriter rules are effective and genetc algorithm has obvious advantage while processing multi-join query.
结果表明,本文提出的重写规则是很有效的,遗传算法在处理多连接查询时具有明显的优越性。
参考来源 - 关系数据库查询优化技术的研究与实现·2,447,543篇论文数据,部分数据来源于NoteExpress
A star join query typically involves a fact table and several dimension tables, with join predicates between the fact table and each dimension table.
一个星型连接查询通常包含一个事实表和几个维度表,事实表和每个维度表之间都有连接谓词。
If specified, it can only take the value 'TRUE' to indicate that the given table must be the first table accessed in a join query.
如果指定了的话,它将只接受“TRUE”值,表示给定表必须是连接查询中进行访问的第一个表。
The output of our disconnected JoinRowSet object correctly parallels the data we obtained when we performed our server side database JOIN query (compare to Table 3).
非连接对象JoinRowSet的输出与我们在服务器端执行join查询得到的数据完全一致(与表3比较)。
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