SPL also has significant advantages over Java. Java is a full-featured programming language, and can handle any data computing task in theory. However, due to its too native nature and lack of necessary computation libraries, all computing tasks need to be developed from scratch, resulting in a difficulty to implement.
Especially for high-performance algorithms, it is more difficult to implement in Java. Even if programmers take a great effort to work it out, the performance is pretty poor. Therefore, not only is the development cost high, but the performance is too low. As a result, the hardware cost is increased.
In addition, Java has some shortcomings in practice. For example, it is difficult to achieve hot swap as a compiled language; tight coupling occurs since different applications/modules need be deployed together with main application. These shortcomings have a significant adverse impact on data analysis scenarios that frequently undergo changes. To avoid these shortcomings, programmers often use SQL together with Java in practice, for the reason that SQL is simpler and more convenient for many calculations. However, in doing so, not only does the SQL problem still exist, but it also brings new Java problem, resulting in complex technology stack, a difficulty to use, and high O&M costs.
In contrast, SPL does not have these problems, because it provides rich computing libraries, making it easy to implement calculation tasks, and offers many low-complexity algorithms to guarantee performance. In addition, as an interpreted language, SPL naturally supports hot swap, and coupling problem will never occur. Compared with SQL, SPL has a greater advantage over Java.
As for Python, some problems exist in processing structured data. Python (Pandas) itself provides rich computing libraries, and it is easy to code in Python for many simple calculations, making Python basically equivalent to SQL. However, for some slightly complicated calculations, it is difficult to code in Python, and the development cost is still high.
Moreover, Python has the problem of version chaos. Incompatibility between different versions will lead to high usage and O&M costs and, Python is very poor in integration, making it difficult to be combined in applications, and hence it often needs to deploy separate service, yet this will increase O&M costs. Like Java, Python is also frequently used together with SQL in practice, and likewise, the existing SQL problem still exists while new problem arises.
The advantages of SPL in terms of development and performance have been described a lot above. In addition, SPL has many other advantages: no version issue; good integration makes it possible to integrate in applications seamlessly; fully-featured; simpler technology stack; no need to resort to other technologies; lower O&M costs.