SAS SQL的应用案例源代码。结构化查询语言SQL过程也是SAS一个内嵌组成模块。 SQL过程为Base SAS软件的一部分，可以使用它与任何SAS数据集（表）。通常情况下，PROC SQL可以替代其他SAS程序或数据的步骤。您可以在SQL过程中使用SAS语言元素，如全局报表、数据集选项、函数、输入和输出格式，如同在其它SAS过程步那样。-SOURCE CODE FOR SAS SQL PROCEDURE. The SQL procedure is SAS　implementation of Structured Query Language. PROC SQL is part of Base SAS software, and you can use it with any SAS data set (table). Often, PROC SQL can be an alternative to other SAS procedures or the DATA step. You can use SAS language elements such as global statements, data set options, functions, informats, and formats with PROC SQL just as you can with other SAS procedures.