| 3. | However , by the time we started collecting index statistics , for example , for the primary key defined on the integer column , there were 10 , 000 additional records inserted , hence , the number of rows in the table is 1 , 110 , 000 , and hence the primary index firstkeycard would be 1 , 110 , 000 但是,在我们开始收集索引统计数据时,例如,对于整型列上所定义的主键,就插入了10 , 000条附加记录,因此,该表中的行数是1 , 110 , 000 ,而主索引firstkeycard将是1 , 110 , 000 。 |