Progress/OpenEdge语言手册

QADERP专用数据库及程序开发语言手册ABLReferencePrefaceThisPrefacecontainsthefollowingsections:*Purpose*Audience*Organization*Usingthismanual*Typographicalconventions*Examplesofsyntaxdescriptions*Exampleprocedures*OpenEdgemessages*ThirdpartyacknowledgementsPurposeThisbookdescribe