In the wake of a rise of a variety of so-called NoSQL databases, there’s no doubt that data management has become more complex. But the one surprising thing is how constant the use of SQL has been.

我们日常使用的数据库主要包括Oracle、MySQL、DB2和SQL Server等。在操作Oracle数据库时，PL/SQL是匹配度最高的工具之一。那么如何 ...