Because of the higher level of abstraction it provides, SQL, unlike procedural languages, lets programmers focus on what data they need, not how to retrieve it.
由于SQL与过程化语言不同，它提供了更高的抽象级别，因此它可以让程序员把精力集中到他们需要什么样的数据，而不是如何检索数据。
Because SQL is a non-procedural language, a single statement can take the place of a series of procedures.
因为SQL是一种非过程化语言，所以一条语句可以代替一系列过程。
For making this both easier and more standardized, Embedded SQL is a metaprogramming system used to easily combine database access with C.
要让这个过程变得又简单、又标准化，那么嵌入式SQL就是一个很好的元编程系统，可以在C 语言中简单地合并数据库访问的功能。
PL/SQL is a process language of ORACLE, including a complete set of data categories, conditional structure, loop structure and exceptional processing structure.
PL/SQL是ORACLE的过程化语言，包括一整套的数据类型、条件结构、循环结构和异常处理结构。
PL/SQL is a process language of ORACLE, including a complete set of data categories, conditional structure, loop structure and exceptional processing structure.
PL/SQL是ORACLE的过程化语言，包括一整套的数据类型、条件结构、循环结构和异常处理结构。
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