前面的访问计划显示select语句的总成本是3420.41timerons,这来自于表扫描操作符(TBSCAN)对ACCOUN t表进行的操作。
The earlier access plan shows that the total cost of the SELECT statement is 3420.41 timerons, which is from the table scan operator (TBSCAN) against the ACCOUNT table.
前面的访问计划显示select语句的总成本是3420.41timerons,这来自于表扫描操作符(TBSCAN)对ACCOUN t表进行的操作。
The earlier access plan shows that the total cost of the SELECT statement is 3420.41 timerons, which is from the table scan operator (TBSCAN) against the ACCOUNT table.
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