... 锁定过程参数（Lock Procedure Arguments） 预计算汇总（Precompute Summaries） 在数据块菜单中列出（Listed In Block Atribute） ...
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而查询优化是解决ROLAP性能问题的重要环节之一，本文针对基于预计算汇总的ROLAP查询优化及基于采样的查询优化进行深入的探讨。
This text goes deep into discussing the query of ROLAP in optimization based on pre-count summary and the query of sample based on query optimization.
因此，汇总表通常包含基于其定义所基于的表中的现有数据的预计算结果。
As such, the summary table typically contains pre-computed results based on the data existing in the table or tables that its definition is based on.
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