I've read some article say that RDBMS such as MySQL is not good at scalable,but NoSQL such as MongoDB can shard well. I want to know which feature that RDBMS provided make itself can not shard well.
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I've read some article say that RDBMS such as MySQL is not good at scalable,but NoSQL such as MongoDB can shard well. I want to know which feature that RDBMS provided make itself can not shard well.