PL/SQL 比 T-SQL 有何优势？
我们可以比较 T-SQL 和 T-SQL 吗？ PL/SQL？ ，我们如何定义它们之间的差异，以及为什么它们不同？归根结底，他们的场景是数据定义和数据操作：-S
Can we compare T-SQL & PL/SQL ? , how we define the differences between these , and WHY its different ? end of the day their scenario is Data definition and data manipulation :-S
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PL/SQL 来自 Oracle。 T-SQL来自微软。两家公司都希望实现额外的功能，让开发人员的工作变得更轻松，但由于它们不符合 SQL 标准，因此它们获得了新名称。
PL/SQL is from Oracle. T-SQL is from Microsoft. Both companies want to implement extras that make things easier for their developers, but since they are outside of the SQL standard they get new names.
它们是不同的，因为它们是由两组不同的程序员编写的。解决问题总是有不止一种方法。他们超越了标准 SQL，因为他们正在寻找一些不在标准中但应该是的东西，这是一个很好的功能（将销售更多单位），或者他们想要一些执行速度更快的东西（性能至关重要）在企业数据库中）。他们试图销售他们的产品，所以他们当然想要制作一些足够不同的东西，以使其成为一个卖点。
They are different because they were written by two different sets of programmers. There is always more than one way to solve a problem. They go beyond the standard SQL because they are looking for something that either isn't in the standard and should have been, is a nice to have feature (that will sell more units) or they want something that will perform faster (performance is critical in Enterprise databases). They are trying to sell their product, so of course they want to make something that is enough different that it will be a selling point.