ILOG OPL Development Studio Language Reference Manual

The oildatabase exampleThe syntax for databases is valid only for data files, with the extension .dat, not for modelfiles with the extension .mod. This section uses the oilDB example to demonstrate operationswith a Microsoft Access database. You can find this example in/examples/opl/oilwhere is your installation directory.Working with databases (oilDB.dat)DBConnection db("access","oilDB.mdb");Gasolines from DBRead(db,"SELECT name FROM GasData");Oils from DBRead(db,"SELECT name FROM OilData");GasData from DBRead(db,"SELECT * FROM GasData");OilData from DBRead(db,"SELECT * FROM OilData");MaxProduction = 14000;ProdCost = 4;DBExecute(db,"drop table Result");DBExecute(db,"create table Result(oil varchar(10), gas varchar(10), blend real,a real)");Result to DBUpdate(db,"INSERT INTO Result(oil,gas,blend,a) VALUES(?,?,?,?)");56I L O G O P L D E V E L O P M E N T S T U D I O L A N G U A G ER E F E R E N C E M A N U A L