As our bus entered the outskirts of modern Athens, the capital and largest city in Greece (pop. 3,096,775 in 1991), our guide pointed to the city's justly famous landmark, the Acropolis, a flat-topped limestone hill housing the remains of the Parthenon and other structures.
MQL5 Reference. 1  MetaQuotes Language 5 (MQL5) is a high-level language designed for developing technical indicators, trading robots and utility applications, which automate financial trading. MQL5 has been developed by MetaQuotes Software Corp. for their trading platform.
This version, initially called SEQUEL (Structured English QUEry Language), was designed to manipulate and retrieve data stored in IBM's original quasi-relational database management system, System R, which a group at IBM San Jose Research Laboratory had developed during the 1970s.QL was one of the first commercial languages for Edgar F. Codd 's relational model, as described in his influential 1970 paper, A Relational Model of Data for Large Shared Data Banks.. Despite not entirely adhering to the relational model as described by Codd, it became the most widely used database language.