2085 - Informix 4GL 期货.pdf

1、Session code(ID number)Session TitleFirstname LastnameCompany,Job TitleIBM Informix 4GL/SQLOrlando,FLOctober 69IBM TechXchange2025IBM Informix 4GL/SQLOrlando,FLOctober 69IBM TechXchange2025Kevin MayfieldActian Division of HCLSoftwareDirector of Informix EngineeringSession:2085Agenda:Informix 4GL bas

2、ics:IntroductionWhat are 4GL and ISQLComponents4GL language4GL compilers example4GL debuggerScreen formsReportsInformix 4GLCompatibilityWhats newWhats coming.IBM TechXchange|2025 IBM Corporation34GL basics:Introduction Informix 4GL/SQL consists of a suite of tools that allow you to efficiently produ

3、ce complex interactive database applications.Using the 4GL language,you can quickly write sophisticated,portable,forms-driven,full-screen applications for data entry,data lookup and display,and report generation.The 4GL/SQL development environment provides all the tools necessary to design screen fo

4、rms,construct and manage program modules,and compile source modules.IBM TechXchange|2025 IBM Corporation44GL basics:What are they?Informix 4GL is a full-featured,general-purpose,fourth-generation programming language with special facilities for creating applications that access Informix databases wi

5、th:Database query and database access using the Structured Query Language(SQL).Form and menu-based multi-user applications.Reports from a database or other data.4GL can be extended by integrating external C functions to handle tasks that are not natively supported.Informix SQL consists of a set of i

6、nteractive tools utilized for creating,modifying,and running screen forms and reports,which can be used by 4GL applications or directly through ISQL.IBM TechXchange|2025 IBM Corporation54GL basics:Components Informix 4GL(know as I4GL)Informix 4GL compiler(i4gl).Compiles 4GL source to ESQL/C and C pr