该程序从客户表中提取行并将它们发送到报告目标，它在本例中是标准输出。

The program fetches rows from the customer table and spools them to the report target, which is a standard output in this example.

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应用程序1 (A 1)在一个游标内从单独一个表选择行。

Application 1 (A1) selects rows from a single table in a cursor.

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虽然有一些增加并发的技巧，但是，如果应用程序需要的是表级别或行级别的锁定，那么DBMS能够更好地满足您的需求。

There are little tricks one can do to increase concurrency, but if your applications need table-level or row-level locks, a DBMS will better suit your needs.

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