一般来说，索引扫描是访问数据的最有效的方法，尤其是表很大但符合条件的行很少的时候。
Index scans are usually the most efficient way to access data, especially when the table is large but the number of qualified rows is small.
以上计数查询的结果是cust_customer表中有588行符合条件记录。
The result of the above count query shows that there are about 588 qualified rows from CUST_CUSTOMER.
符合条件的企业在银行间债券市场向合格机构投资者发行短期融资券的行？是被允许的。
It is allowed that eligible enterprises can issue short-term finance bills to qualified institutional investors in the inter bank bond market.
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