AdvPL (''Advanced Protheus Language'') is a proprietary

programming language A programming language is a system of notation for writing computer programs. Most programming languages are text-based formal languages, but they may also be graphical. They are a kind of computer language. The description of a programming l ...

based on

xBase xBase is the generic term for all programming languages that derive from the original dBASE ( Ashton-Tate) programming language and database formats. These are sometimes informally known as dBASE "clones". While there was a non-commercial predec ...

. It was released in 1999 and is used for development of applications in the ERP Protheus made by TOTVS.What is AdvPL? - TOTVS Technology - TDN
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References

XBase programming language family {{prog-lang-stub