5 连接（Join）优化: Nested Loop Join, Block Nested Loop Join, Index Nested Loop Join 讲课 CZ NLJ, BNLJ, INLJ 6 连接（Join）优化: Sort Merge Join, Hash Partition JOIN 讲课 CZ SMJ, HPJ 7 E/R模型, 数据表设计 讲课 CZ 8 ...

Jean: And I’m Jean. Helen: Today we’re going to look at words and phrases that have recently become part of the English language. Jean: 在我们的 Real English 地道英语节目中，我们要来学学当今英国最新出现的一些新词汇和新说法。Now Helen, ...