STDL - A Portable Language for Transaction Processing
Philip A. Bernstein, Per O. Gyllstrom, Tom Wimberg · 1993
Structured Transaction Definition Language (STDL) is a language for distributed transaction processing, developed by the Multivendor Integration Architecture consortium. STDL is a block-structured language, specialized for transaction processing. It is designed for application portability across multiple STDL implementations on different vendors ’ transaction processing systems. This paper describes STDL’s transaction features: transaction bracketing, transactional remote procedure call, transactional queuing, recoverable terminal I/O, and transactional exception handling. STDL relies on standard C and COBOL for most application logic and all operations on SQL databases and files. All transactional features of STDL and new features outside standard C and COBOL are isolated in procedures written in the STDL language. These procedures are called tasks. This isolation of transactional features is quite different than other persistent programming languages: one can use applications written in standard C or COBOL; and to implement STDL, it is possible to map clauses of task language onto operations of most any distributed TP monitor.