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	Data Definition Language - Wikipedia, the free encyclopedia
		A Data Definition Language (DDL) is a computer language for defining data.
		XML Schema is an example of a pure DDL (although only relevant in the context of XML).
		DDL SQL statements are more part of the DBMS and have large differences between the SQL variations.
	en.wikipedia.org /wiki/Data_Definition_Language (244 words)

	DDL - Data Definition Language, Document Description Language
		DDL is an acronym for Dictionary Definition Language.
		Language describing the schema for a user database, data names and access paths, and their interrelationships.
		DDL is a Data Description Language that describes HDF5 objects in Backus-Naur Form.
	www.auditmypc.com /acronym/DDL.asp (233 words)

	Data Mining Extensions (DMX) Reference
		The data mining features in Analysis Services are built to comply with the Microsoft OLE DB for Data Mining specification, which was first released to coincide with the release of Microsoft SQL Server 2000.
		Use data definition statements in DMX to create and define new mining structures and models, to import and export mining models and mining structures, and to drop existing models from a database.
		Data definition statements in DMX are part of the data definition language (DDL).
	msdn2.microsoft.com /en-us/library/ms132058.aspx (913 words)

	Data Definition Language
		The Data Definition Language (DDL) is used to described to ACCENT R in what general form the data appears and the fields defining the data.
		PURPOSE: The characteristics of the data are specified by the data definition statements of a Schema Definition (SD).
		Therefore, if data is entered to secondary fields, and if the secondary fields leave gaps in the primary field, the nulls left in the primary field will cause ACCENT R to see an empty or truncated field when the primary field is addressed.
	www.nis.com /volume_1/chapter_4.html (6825 words)

	Schema Data Definition Language (DDL)
		This description is in terms of the names and characteristics of the data items, data aggregates, records, areas, and sets included in the database, and the relationships that exist and must be maintained between occurrences of those elements in the database.
		A data manipulation language (DML) is a language used to cause data to be transferred between a run unit and the database.
		Any required data transformations between the representation of the data as it appears in the database (as declared in the schema) and the representation of the data as it appears in a program's UWA (as declared by the subschema) are handled by the DBMS.
	www.tpub.com /incs/62.htm (1003 words)

	Using Data Definition Language with SQL Server 2000 Analysis Services Client Applications
		Data mining dimensions are not a substitute for prediction queries; instead, data mining dimensions allow reorganization of multidimensional data based on the statistical data stored by the data mining model.
		Data mining dimensions are a special type of grouping dimension that are based on the information represented by a data mining model.
		The node organization of the data mining model is used to construct a grouping dimension, in which each level in the data mining dimension represents each node level within the data mining model, while each member group represents each node at a given node level.
	www.microsoft.com /technet/prodtechnol/sql/2000/maintain/anserddl.mspx (6574 words)

	MDDL Market Data Definition Language
		Market data is often delivered on dedicated circuits using highly specific compression schemes involving a large base refresh or "snapshot" of the data followed by subsequent smaller "streaming" updates.
		Many market data related corporations are understanding that end-users do not require up-to-the-millisecond data and needs can be satisfied in a request-response environment facilitated by a browser and a website on a public or private network.
		By placing this common data within a single instance (perhaps in the references section of a static file on a website), MDDL can refer to this information in a way that indicates to the receiver that the data, if imported into the document, can be placed inline.
	www.idealliance.org /papers/xml2001/papers/html/04-03-05.html (3411 words)

	mothballed project data definition language
		The most atomic level backup of a database system is the actual (DDL) Data Definition Language code, usually SQL (Standard Query Language) or a SQL derivative.
		With minor modifications the DDL from one database system that conforms to SQL standards can be applied to any other that also complies to the standards.
		Most systems will have Data Dictionary tables that can be queried like any other database tables allowing the DDL to be dynamically generated for each type of database object.
	www.dba-oracle.com /t_mothballed_project_data_definition_language.htm (418 words)

	Data Definition Language
		Null values are a member of all data types.
		The data can be up to 38 characters long.
		ANSI standard types are allowed in the DDL, but get converted to the preferred Oracle equivalent.
	www.cs.umbc.edu /461/current/burt/lectures/lec06/DDL.shtml (545 words)

	Handling Data Definition Language (ADO and SQL Server (SQL Server)) (Site not responding. Last check: 2007-09-18)
		Data definition language (DDL) statements are SQL statements that support the definition or declaration of database objects (for example, CREATE TABLE, DROP TABLE, and ALTER TABLE).
		Because executing DDL queries with this method does not generate any recordsets, there is no need for a Recordset object.
		Microsoft® ActiveX® Data Objects Extensions for Data Definition Language and Security (ADOX) is an extension to the ADO objects and programming model.
	msdn.microsoft.com /library/en-us/adosql/adoprg03_4vj9.asp?frame=true (388 words)

	Cover Pages: Market Data Definition Language (MDDL)
		MDDL provides a common format for market data so that it can be efficiently passed from one processing system to another and provides a common understanding of market data content by standardizing terminology and by normalizing the relationships of various data elements to one another...
		Documentation for the vocabulary definitions is being reviewed by a small group and will be released for global review by mid-July (even though the beta specification will be released on July 1, 2002).
		Reuters is the world's largest supplier of financial data, so this is a practical discussion of what is and is not possible at present, and what is in the pipeline going forward.
	xml.coverpages.org /mddl.html (2754 words)

	Access Data Definition Language (DDL): Creating and Altering Tables On The Fly
		This too is part of the SQL language and can be run from an Access query, or through VBA code, but unlike DML, these commands do not return a result set.
		DDL is used to create and alter database objects, such as tables.
		The process to create a DDL query is a little different from what you might be used to.
	www.databasejournal.com /features/msaccess/article.php/3460771 (1235 words)

	Data definition language (Site not responding. Last check: 2007-09-18)
		A language enabling the structure and instances of a database to be defined in a human-, and machine-readable form.
		SQL contains DDL commands that can be used either interactively, or within programming language source code, to define databases and their components, e.g.
		It is used in the Eli compiler-compiler to manage type definitions.
	burks.bton.ac.uk /burks/foldoc/46/28.htm (84 words)

	Web Service Definition Language (WSDL) (via CobWeb/3.1 planetlab2.netlab.uky.edu) (Site not responding. Last check: 2007-09-18)
		In WSDL, the abstract definition of endpoints and messages is separated from their concrete network deployment or data format bindings.
		This allows the reuse of abstract definitions: messages, which are abstract descriptions of the data being exchanged, and port types which are abstract collections of operations.
		This is used to attach a specific protocol or data format or structure to an abstract message, operation, or endpoint.
	www.w3.org.cob-web.org:8888 /TR/wsdl (7561 words)

	Visual C++ 6 Unleashed > Data Definition Language (Site not responding. Last check: 2007-09-18)
		Data Definition Language is the portion of SQL used for defining the structure of the database and creating objects within the database.
		Tables are constructed of columns that contain several types of data, so before moving on to the specifics of creating a table, let's look at the available data types for columns.
		The SQL data types that you will look at here are grouped according to ODBC SQL conformance levels, although most implementations don't adhere strictly to the conformance-level specifications.
	www.samspublishing.com /library/content.asp?b=Visual_C_PlusPlus&seqNum=174 (902 words)

	Using the Data Definition Description Language
		All three payload data elements are defined as strings with different delimiters for separating their data.
		The D3L translation engine compares the data structure in the native format message to each D3L file until it finds the correct one to use for translation, unless one of the methods described in "Message Header Attributes" is used.
		In "Creating Data Type Definitions for Application Views", a DTD file and a D3L file are created that match the common view attributes shown in Table B-3.
	www.boku.ac.at /oradoc/ias/10g(9.0.4)/integrate.904/b10404/appx_d3l.htm (5883 words)

	Data Definition Language
		It should contain the following data: department number, average, minimum and maximum salary in department (monthly salary plus commission), budget (sum of employees’ salaries) and the number of salaries and commissions.
		View should verify the data in following manner: it should not be possible to increase employee’s salary beyond 2000$.
		It should retrieve the following information and it should control employee’s salary not to be greater then his boss’ salary.
	www.cs.put.poznan.pl /rwrembel/08Views.htm (196 words)

	Reverse Engineer to Extract and Export Oracle Data Definition Language (DDL) Scripts
		Oracle is very anal retentive about getting usable and complete data definition language (DDL) out of its database servers before release 9i and still provides very limited schema utilities.
		This was written to extract the data definition language (DDL) for database development projects and configuration management and the end result is a runable DDL script to create a database or a user schema.
		Use the Oracle imp (import) utility to get the DDL (the show option) from an Oracle exp (export) file to make a text file.
	www.tc.umn.edu /~hause011/code/ugly_DDL.ksh (408 words)

	RFIDa - RFID Data Definition
		The data that the RFID tag communicates to the RFID reader is a sequence of bytes that encode the identity of the object that the tag is placed on.
		When the data is transferred from the RFID tag to the reader, a server performs a cross-reference of the tag data with reference data on the internet to obtain the detailed master records about the specific object.
		RFID or radio data tagging, as it is more commonly known, is one of the most rapidly expanding areas of data capture technology.
	www.rfida.com /nb/rfiddata.htm (1398 words)

	Executing Data Definition Language (DDL) statements
		Data Definition Language (DDL) statements manage schema objects in the database.
		DDL statements create new tables, drop old tables, and establish other schema objects.
		DDL statements also allow you to work with objects in the Oracle database server.
	www.stanford.edu /dept/itss/docs/oracle/10g/win.101/b10118/o4o00019.htm (46 words)

	Data Definition Language, Part 1
		Several of MySQL's SQL statements comprise the Data Definition Language (DDL) that is used to define the structural characteristics of your databases.
		It also describes how to use each of the DDL statements and discusses the available column datatypes, their properties, how to use them, and the syntax for writing column definitions.
		Related to the DDL statements, MySQL supports several statements that are helpful for checking what databases or tables exist and for getting information about the internal column and index structure of tables.
	www.devshed.com /c/a/MySQL/Data-Definition-Language-Part-1 (1365 words)

	How to use common Data Definition Language (DDL) SQL statements for the Jet database engine
		This article demonstrates some common DDL (Data Definition Language) SQL statements for the Microsoft Jet database engine.
		Microsoft Jet provides a full set of Data Definition Language SQL statements, which can be used to create, modify, and delete tables, indexes, and relationships in a Microsoft Access database file.
		The DROP DDL statement is used to delete existing tables or indexes.
	support.microsoft.com /support/kb/articles/q180/8/41.asp (855 words)

	ETL Data Definition Language Documentation (Site not responding. Last check: 2007-09-18)
		ETL has a secondary language, called DDL (Data Definition Language) that is used to describe sets of variables that are passed to a template.
		This is a useful technique for creating lists of hashes that can be used like objects in your ETL templates.
		This form of %include pulls the contents of its argument into the current namespace, potentially overwriting data that's already there.
	etl.i-want-a-pony.com /doc/ddl.html (279 words)

	SQL Server 2005 - Data Definition Language Triggers
		One of the many new features that have been added to SQL Server 2005 is DDL triggers.
		We use DML triggers in SQL Server 7.0 and 2000, which executes a bunch of SQL statements or procedures whenever an INSERT, UPDATE or DELETE statement is executed and limited to a table or view object.
		DDL triggers are used when you want a certain action to be performed when a schema change occurs.
	www.databasejournal.com /features/mssql/article.php/3581846 (954 words)

	DDML Specification, Version 1.0 (via CobWeb/3.1 planetlab2.netlab.uky.edu) (Site not responding. Last check: 2007-09-18)
		In order for document processing to be reliable, it is necessary to be able to describe classes of documents and to verify individual documents' membership in these classes -- in other words, to be able to express constraints on documents and thus define 'document types'.
		Proposals for describing SGML document type definitions using document syntax rather than the separate declaration syntax have been under development for a number of years, and used by several tools for documentation.
		Content within an element declared as mixed can be parsed character data, one or more of the elements referenced by Ref elements nested in the Mixed element, or a mixture of both.
	www.w3.org.cob-web.org:8888 /TR/NOTE-ddml (8155 words)

	SQL: Chapter 5: SQL Data Definition Language (Site not responding. Last check: 2007-09-18)
		All of the statements considered in previous sections belong to the data manipulation part of the SQL language and allow users to interrogate and change the data of selected database tables.
		The name and data type of each column in the new table are specified by columnname and format arguments respectively.
		A View, as we will see, is a definition for a "virtual table" (virtual because there is no permanent allocation of storage space) which is assembled at reference time from selected rows and/or columns of one or more real tables.
	www.cs.unibo.it /~ciaccia/COURSES/RESOURCES/SQLTutorial/sqlch5.htm (1471 words)

	Data Definition Language (DDL) (Site not responding. Last check: 2007-09-18)
		Used to specify a database scheme as a set of definitions expressed in a DDL
		DDL statements are compiled, resulting in a set of tables stored in a special file called a data dictionary or data directory.
		The storage structure and access methods used by the database system are specified by a set of definitions in a special type of DDL called a data storage and definition language
	www.cs.sfu.ca /CC/354/zaiane/material/notes/Chapter1/node16.html (114 words)

	DDL (Data Definition Language) <definition> (Site not responding. Last check: 2007-09-18)
		Those statements in SQL that define, as opposed to manipulate, data.
		The schema of a database is created or modified with DDL.
		This HTML Help has been published using the chm2web software.
	www.nukz.net /reference/ado26/htm/mddefddl.htm (45 words)

	ONLamp.com -- Data Definition Language
		We've been focused on the data manipulation aspect of SQL for the past few months, which I hope has improved your day-to-day development of database-backed applications.
		For the next few columns, we're going to take a slight left turn and talk about the data definition aspect of SQL -- how to use SQL to define the database and its component tables and other artifacts.
		The differences between the details of defining a database among the database platforms should be no surprise -- the differentiating factors between databases are in the types of data elements, the operations allowed on the data and database elements, and even in the construction of the tables themselves.
	www.onlamp.com /pub/a/onlamp/2001/08/30/aboutSQL.html (613 words)

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