Challenges for OLAP in the Big Data Era
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conducted not only via distributed computing engines but also through the storage. Usage of advanced storage forms such as parquet, orc and carbondata can greatly improve analysis performance. ...
New in MySQL 8.0.0 - Role
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can grant a uniform role permission to multiple accounts, and modifications to the role can be achieved through modifying the ...
Java threads
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look at the thread stack through several cases:
Case 1: Acceptor in the NIO
"qtp589745448-36 Acceptor0 ...
A clever BaseDao design
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philosophy. We achieve implementation through reflection + generic type + interface-oriented programming. I found a UML diagram on ...