The Experts below are selected from a list of 231 Experts worldwide ranked by ideXlab platform
Mengchi Liu - One of the best experts on this subject based on the ideXlab platform.
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DTD schema: a simple but powerful XML schema language
International Journal of Web Information Systems, 2008Co-Authors: Mengchi LiuAbstract:Purpose – The purpose of this paper is to describe a novel XML schema language called DTD Schema that solves major limitations of document type definition (DTD) and supports features that XML Schema supports in a simple and concise way.Design/methodology/approach – DTD Schema is designed based on DTD and data definition language of object‐oriented and object‐relational databases. It extends DTD with namespaces, richer built‐in types and user‐defined subtypes, local elements and attributes, complex types with nonmonotonic multiple element and attribute inheritance with overriding, blocking, conflict handling, and polymorphism.Findings – XML Schema is recommended by W3C as the schema language for XML. It uses a set of predefined XML tags to define the schema, which is often a long, intricate specification, full of details and concepts and its verbose syntax often doubles or triples the document length. It is so complicated that even XML experts do not find it human‐readable, mostly due to the XML‐based synt...
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design and implementation of the olog deductive object oriented database management system
Lecture Notes in Computer Science, 2000Co-Authors: Mengchi LiuAbstract:OLOG is a novel deductive database system for advanced intelligent information system applications. It directly supports effective storage, efficient access and inference of large amount of persistent data with complex structures. It provides a SQL-like data definition language and data manipulation language, and a declarative rule-based query language. It combines the best of the deductive, object-oriented, and object-relational approaches in a uniform framework. This paper describes the design and implementation of the OLOG system.
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DEXA - Design and Implementation of the OLOG Deductive Object-Oriented database Management System
Lecture Notes in Computer Science, 2000Co-Authors: Mengchi LiuAbstract:OLOG is a novel deductive database system for advanced intelligent information system applications. It directly supports effective storage, efficient access and inference of large amount of persistent data with complex structures. It provides a SQL-like data definition language and data manipulation language, and a declarative rule-based query language. It combines the best of the deductive, object-oriented, and object-relational approaches in a uniform framework. This paper describes the design and implementation of the OLOG system.
Joseph Fong - One of the best experts on this subject based on the ideXlab platform.
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Translating object-oriented database transactions into relational transactions
Information and Software Technology, 2002Co-Authors: Joseph FongAbstract:Abstract In this paper, we present methods of translating transactions from object-oriented database (OODB) to relational database (RDB). The process involves schema mapping in data definition language and transaction translation in data manipulation language. They include scheme definition, data query and transaction operation of insert, update, and deletion. We also discuss the object-oriented features in OODB operations that are not supported by RDB, such as class hierarchy, class composition hierarchy, and set attribute, and provide a general solution to realize those mechanisms by traditional relation operations. The result of the transaction translation can be applied into adding object-oriented interface into relational database management system and to the interoperability between OODB and RDB.
Garth Wells - One of the best experts on this subject based on the ideXlab platform.
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data definition language
Code Centric: T-SQL Programming with Stored Procedures and Triggers, 2001Co-Authors: Garth WellsAbstract:DDL (data definition language) is the subset of T-SQL that you use to create, alter, and delete database objects. This chapter will not provide complete coverage of all the DDL statements in T-SQL, but will instead concentrate on the ones you are most likely to use in your programming endeavors.
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DML: Inserting, Updating, and Deleting data
Code Centric: T-SQL Programming with Stored Procedures and Triggers, 2001Co-Authors: Garth WellsAbstract:DML (data Manipulation language) is the subset of T-SQL that allows you to manipulate data stored in objects created by DDL (data definition language) statements. Chapter 4 covered the data retrieval aspect of DML and this chapter explores the data modification portion of DML. data modification is fundamental to using a database, and fortunately the statements used to this are fairly straightforward. The examples presented in this chapter will demonstrate how easy it is to add, update, and delete data from a table.
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DML: SELECT, JOINs, and Control-of-Flow
Code Centric: T-SQL Programming with Stored Procedures and Triggers, 2001Co-Authors: Garth WellsAbstract:DML (data Manipulation language) is the subset of T-SQL that allows you to manipulate data stored in the database objects created with DDL (data definition language) statements. DML is fundamental to working with SQL Server (and understanding the examples presented later in the book) so this chapter covers a lot of important material. The SELECT statement and some of the more useful clauses and operators are covered in detail and the various JOINs are presented and explained through a series of examples. The chapter completes with coverage of the control-of-flow statements available in T-SQL.
Rob Tiffany - One of the best experts on this subject based on the ideXlab platform.
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SQL Server CE data definition language
SQL Server CE Database Development with the .NET Compact Framework, 2003Co-Authors: Rob TiffanyAbstract:The SQL data definition language (DDL) specifies how to create, modify, and delete various database objects, including tables, views, privileges, indexes, triggers, and stored procedures. This specification generally assumes that all the functions performed by DDL are written in pure SQL. In the case of SQL Server CE, you’ll use a combination of pure SQL and ADO.NET method calls to perform all of your DDL tasks. Before attempting to work with SQL Server CE, you must set a reference to System.data.SqlServerCe in Visual Studio. Even though you can use Query Analyzer to perform all your DDL tasks, this chapter will focus on doing these things programmatically. Throughout this chapter, I’ll provide examples in the form of fully functional code snippets along with the necessary Imports to make the code work properly. Feel free to create a Smart Device Application and type these code snippets into the click events of button controls if you like.
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The Pocket SQL data definition language
Pocket PC Database Development with Embedded Visual Basic, 2001Co-Authors: Rob TiffanyAbstract:The sql data definition language (DDL) specifies how various database objects are created, modified, and deleted. Normally these objects include such things as tables, views, privileges, indexes, triggers, and stored procedures. In Chapter 1, you learned that on the Pocket PC you’re limited to using a subset of the Structured Query language. It should then come as no surprise that you’ll find yourself limited when it comes to the database objects you can work with. Those of you who are accustomed to using GUI tools, such as Microsoft Access or the SQL Server Enterprise Manager, to construct and modify databases are probably wondering why you even need to know the Pocket SQL DDL. The answer is simple: There is no GUI tool available to build and modify Pocket Access databases on the Pocket PC. Pocket Access databases have to be built programmatically using Pocket SQL DDL, eMbedded Visual Basic, and ADOCE. While it may seem like you’re having to do things the hard way, you’ll gain the skills you need to build your own Access-like GUI tool later on in this book.
Akhmad Dahlan - One of the best experts on this subject based on the ideXlab platform.
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Transact ‐ SQL : data definition language 1st
2009Co-Authors: Akhmad DahlanAbstract:Transact‐SQL adalah pengembangan dari bahasa SQL dipublikasikan oleh International Organzation for Standardization (ISO) dan American National Standards Institute (ANSI).Transact‐SQL adalah sekumpluan perintah/program yang dijalankan pada objek‐objek atau data dalam database. Setiap aplikasi yang berkomunikasi dengan SQL Server akan mengirim perintah Transact‐SQL ke server. SQL Server mempunyai tiga jenis Transact‐SQL yaitu data definition language (DDL), data Control language (DCL), dan data Manipulation language (DML). data Definitioan language DDL dipakai untuk mendefinisikan dan mengatur semua skema, atribut dan properti dari objek dalam database server. Dengan DDL kita dapat menentukan tata letak dan definisi field, field‐field kunci, lokasi file, membuat database, tabel dan objek lainnya
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transact sql data definition language 1st
KARYA ILMIAH DOSEN UNIVERSITAS AMIKOM YOGYAKARTA, 2009Co-Authors: Akhmad DahlanAbstract:Transact‐SQL adalah pengembangan dari bahasa SQL dipublikasikan oleh International Organzation for Standardization (ISO) dan American National Standards Institute (ANSI).Transact‐SQL adalah sekumpluan perintah/program yang dijalankan pada objek‐objek atau data dalam database. Setiap aplikasi yang berkomunikasi dengan SQL Server akan mengirim perintah Transact‐SQL ke server. SQL Server mempunyai tiga jenis Transact‐SQL yaitu data definition language (DDL), data Control language (DCL), dan data Manipulation language (DML). data Definitioan language DDL dipakai untuk mendefinisikan dan mengatur semua skema, atribut dan properti dari objek dalam database server. Dengan DDL kita dapat menentukan tata letak dan definisi field, field‐field kunci, lokasi file, membuat database, tabel dan objek lainnya
