The cardinality represents the estimated number of rows returned from the access plan operator.

基数(cardinality)表示访问计划操作符所返回的行的估计数目。

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The access plan operator is either an action that must be performed on data, or the output from a table or an index.

访问计划操作符要么是必须在数据上执行的动作，要么是表或索引的输出。

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At each operator in the access plan, the optimizer estimates the cardinality output from the operator.

对于访问计划的每个操作符，优化器将估计该操作符的基数输出。

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Dulce Pugliese de Godoy Bueno met her ex-husband, Amil founder Edson de Godoy Bueno, in medical school and helped him build the Brazilian health plan operator, starting with the acquisition of a few medical clinics.

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Yet over 90% of the consumers who Ratemizer application identified as overspenders could change to a substantially cheaper plan while remaining with the same operator.

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For example, as the vice president of marketing for a major cable television operator, my marketing plan relied on our engineering division making major upgrades to our cable systems.

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