天翻地覆 王力宏 专辑：你的爱。 语种：国语 流派：Pop 唱片公司：宏声音乐 发行时间：2015-01-23
http://en.wikipedia.org/wiki/Relational_algebra#Semijoin Let\'s say that I have two tables:A and B.I want to make a query that would work similarly to th开发者_高级运维e following SQL statement using
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