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商品描述
If you are looking for a practical DB2 book that focuses on application programming, this is the book for you. Written from the programmer's point of view, it will quickly teach you what you need to know to access and process DB2 data in your COBOL programs using embedded SQL. This second edition has been thoroughly updated and expanded to make it even more valuable to the programmer who is slugging it out on the job. You will learn: the critical DB2 concepts that let you understand how DB2 works; the basic DB2 coding features you will use in every program you write; how to use version 4 enhancements like outer joins and explicit syntax for inner joins; how to work with column functions, scalar functions, and subqueries to manipulate data; how to use error handling techniques and ROLLBACK to protect DB2 data; why program efficiency is vital under DB2...and more.
商品描述(中文翻譯)
如果你正在尋找一本實用的DB2書籍，專注於應用程式編程，那麼這本書就是適合你的。從程式設計師的角度出發，它將迅速教你如何使用嵌入式SQL在COBOL程式中存取和處理DB2數據。這本第二版已經經過全面更新和擴充，使其對於在工作中努力奮鬥的程式設計師更加有價值。你將學到：關鍵的DB2概念，讓你了解DB2的運作方式；你在每個程式中都會使用的基本DB2編碼功能；如何使用版本4的增強功能，如外部連接和內部連接的明確語法；如何使用列函數、標量函數和子查詢來操作數據；如何使用錯誤處理技術和ROLLBACK來保護DB2數據；為什麼在DB2下程式效率至關重要...等等。
