In our example, plain SQL is not sufficient to select only department PR27 and only return the employee names.

在我们的示例中，普通 SQL 不足以实现仅选择部门 PR27 且仅返回员工姓名这项任务。

youdao

An application can run hundreds of different SQL statements; if only one of them is incorrectly coded or not tuned to its best, the entire system's performance can be impacted.

应用程序可以运行上百条不同的sql语句；如果其中只有一条的代码不正确或未调至最优，那可能会影响整个系统的性能。

youdao

Not only can this can greatly improve readability when working with large SQL statements, you can also easily compare and make changes using the Eclipse text compare features.

这不仅可以在处理大型sql语句时改善可读性，还可以使用Eclipse文本比较特性轻松进行比较并更改。

youdao