A database schema is specified by a set of definitions expressed by a special language called a Data Definition Language. The schema is compiled and the results are stored in the data dictionary. The date dictionary contains metadata about the database and is used before before the actual data is read or modified in the DBMS.
A coded catalog of all data types listing data names and structures.
A dictionary-style listing of the attributes available in the Data Warehouse, grouped by object.
Catalog of definitions of the contents of a digital data base, including data element reference labels, file formats, internal reference codes and text entry, as well as their relationships.
The data model methodology that allows user-defined fields in PTWin32. Field names are stored in a data table that is used to point to an associated field in another data table.
A directory of all data items in a GIS. It does not contain the actual data items, but information on the types, names and structures of the data items. It is data about the data.
A directory of all data items, giving the name and structure of each. It does not contain the actual data. The contents of a data dictionary are sometimes called metadata.
Lists the elements for which standards exist. The Joint Electronic Document Interchange (JEDI) committee developed a data dictionary that is employed by many EDI users.
A file or a list that contains all known information about variables such as format, data type, field width, and source.
The data dictionary gives definitions for all of the tables in the Enterprise Data Warehouse and Data Marts as well as column names and descriptions, table keys, and sample valid values. The data dictionary is useful for finding out more about a specific table or column. ()
(IEEE) (1) A collection of the names of all data items used in a software system, together with relevant properties of those items; e.g., length of data item, representation, etc. (2) A set of definitions of data flows, data elements, files, data bases, and processes referred to in a leveled data flow diagram set.
An organized collection of information about the definition, structure, and use of data in an organization.
This is a JGOFS construct. The JGOFS API uses data set names instead of file names to refer to data sets. The API uses the data dictionary to look up the data set names, where it finds the file names or URLs to which the name refers.
a data dictionary names and defines data items within a business use context. Designers, users and administrators use a data dictionary to manage information.
a catalog of all the data items and their characteristics, including their format and how they are related to other data items
a central catalogue of the definitions and usage of the data within an organisation
a directory of the definitions, purpose, policies and structure about data
a form of metadata or "data about the data
a kind of metadata
a repository (manual or computed-based) containing information about the various data objects appearing on each DFD
a set of metadata that contains definitions and representations of data element s
a set of terms, with their definitions, used in a computerized system
a tool which lists all data items that are used, their definitions, how and where they are used, and who is responsible for them
Listing of information about data elements. Data dictionaries commonly describe the contents of data elements, provide the names used by functional users of the system to refer to elements, as well as the name or representation used within the programming and tables of the system, and other descriptive information. The other descriptive information may include the logic used to obtain that element; the size of the element; formatted reports that use the element; and the source, type and potential users of the element. (JFMIP Framework) HUDCAPS Core Financial System Standard Accounting Interface, dated 9/30/97
A record of a file's structure, its elements (fields and their attributes), and relationships to other files. Often abbreviated as DD.
A document that contains features, rules and item definitions for a specific set of geospatial data.
Holds the definitions of all of the data tables and describes the type of data that is being stored.
The repository of all data definitions in a database.
The central repository of information about the database.
A data dictionary is a repository of descriptive information about data. Data dictionary information includes database elements and valid values used to describe datasets. Source: ESDIS IMS Lexicon.
A central, integrated and active control facility that provides the basis for shared and consistent system resource management. A data dictionary is used to: manage definitions and syntax, enforce naming standards, support data protection, create data relationships, and act as a central point of communication.
1. Document containing information about a series of datasets. Information found in a data dictionary typically are names of the data, information about the attributes, and information about any relational tables to the spatial datasets. 2. A data entry menu that defines the structure of data collected. They are typically used in GPS data collection and remote GIS data collection with portable devices such as a PDA. A data dictionary does not contain the actual information captured in the field but prompts the user to enter this informaition. It can also limit what is entered, helping to ensure data integrity and compatibility with the central database.
database about the structure of a database, including table names, structure, and information about their use. A Data Dictionary is commonly used to control user input during data entry.
contains metadataâ€”data about data, for example, database and query statistics, data partitioning and placement information, the machine state.
n. A centralized repository of information about data such as meaning, relationships to other data, origin, usage, and format. It assists management, database administrators, system analysts, and application programmers in planning, controlling, and evaluating the collection, storage, and use of data.
contains metadata, data about data, fully describes all data in a table
A specialized type of database containing metadata, which is managed by a data dictionary system; a repository of information describing the characteristics of data used to design, monitor, document, protect, and control data in information systems and databases; an application of data dictionary systems.
1. A repository of all definitive information about the relevant data in an enterprise, including characteristics, relationships, usage and responsibility. 2. A central source within a database of information about database objects, users, privileges, events, and use.
(SQL) System tables that hold information about the structure of the database. ddldml.php
A data dictionary is a database that contains the name, type, range of values, source and authorization for access for each data element in a database. It also indicates which application programs use that data so that when a data structure is contemplated, a list of the affected programs can be generated. The data dictionary may be a stand-alone information system used for management or documentation purposes, or it may control the operation of a database.
In database design, a collection of the names of all data items used in a software system, together with relevant properties of those items; for example, length of data item, representation, etc. In structured programming, a set of definitions of data flows, data elements, files, databases, and processes referred to in a data flow diagram set.
1) A catalog of requirements and specifications for an information system. 2) A file that stores facts about the files and databases for all systems that are currently being used or for the software involved.
The cross-reference of definitions and specifications for data categories and their relationships.
A set of tables Oracle uses to maintain information about the database. The data dictionary contains information about tables, indexes, clusters, and so on.
repository of metadata ( information about data), such as its meaning, relationships to other data, origin, usage and format. The dictionary assists company management, database administrators, systems analysts and application programmers in effectively planning, controlling and evaluating the collection, storage and use of data.
A database about data and database structures. A catalog of all data elements, containing their names, structures, and information about their usage. A central location for metadata. Normally, data dictionaries are designed to store a limited set of available metadata, concentrating on the information relating to the data elements, databases, files and programs of implemented systems.
A set of system tables, stored in a catalog, that includes definitions of database structures and related information, such as permissions.
A repository of information about data. A data dictionary stores relational information on all objects in a database.
A file, part of a file, or part of a printed codebook containing information about a data file, including the name of the element, its format, location, and size.
A component that stores metadata. Thus, the data dictionary contains the data definition as well as its characteristics and relationships.
A repository of information about data, such as its meaning, relationships to other data, origin, usage and format. A data dictionary manages data categories such as aliases, data elements, data records, data structure, data store, data models, data flows, data relationships, processes, functions, dynamics, size, frequency, resource consumption and other user-defined attributes.
A collection of descriptions of the entities in a data model or schema. Data Dictionaries are usually written in natural language, as opposed to rationalizations.
The central place where all field definitions are stored and maintained. This is the place where the administrator may change the display titles for database fields (database tab), screen fields (label tab), screen titles (screen tab), and user-defined fields (UDF tab).
List of all the data elements stored in a database, with descriptions, definitions, relationships, and information about which reports or other application programs use the data.
A part of a database that holds definitions of data elements, such as tables, columns, and views.
A collection of Metadata. Many kinds of products in the data warehouse arena use a data dictionary, including database management systems, modeling tools, middleware, and query tools.
A database that contains definitions of all data items defined during analysis.
A way of organizing information, which is collected. This information enables one to work out the composition of the data, uniqueness and consistency of names and definitions of terms, and document them in dictionary which all team members can use
a software tool for recording the definition of data, the relationship of one category of data to another, the attributes and keys of groups of data, and so forth.
Defines the characteristics (i.e., formats and values) of each field in a database, enabling data to be used in a consistent manner. It is usually presented in a list format.
Information about the defi nition and structure of data.
It is a collection of definitions and specifications for data categories and their relationships. It is a database of data about data (meta data).
The central set of tables and views that are used as a read-only reference about a particular database. A data dictionary stores such information as: The logical and physical structure of the database Valid users of the database Information about integrity constraints How much space is allocated for a schema object and how much of it is in use A data dictionary is created when a database is created and is automatically updated when the structure of the database is updated.
A comprehensive set of tables and views automatically created and updated by the ORACLE Server, which contains administrative information about users, data storage, and privileges. It is installed when ORACLE is initially installed and is a central source of information for the ORACLE Server itself and for all users of ORACLE. The tables are automatically maintained by ORACLE. It is sometimes referred to as the catalog.
Defines the fields you will fill during data collection using the GPS equipment. Very similar to describing the fields in a record for a database program.
A file that defines the basic organization of a database. It will contain a list of all files in the database, the number of records in each file, and the names and types of each field.
a data dictionary names and defines data items within a business use context. It describes each item and says where it fits within the data model. A data dictionary is used so that information can be correctly recorded within the system and retrieved if it is needed. For example, a bank's data dictionary would hold definitions of Account Name, Account Balance, Credit Limit etc. The dictionary is part of the system that is invisible to most users.
repository of information about the definition, structure, and usage of data. It does not contain the actual data.
A catalog of all data held in a database, or a list of items giving data names and structures. Also referred to as DD/D for data dictionary/directory. Commercial RDBMSs have online data dictionaries stored in special tables called system tables.
DBMS element that contains data about each file in the database and each field within those files. Sometimes called a repository or metadata. 13.14- 15, 14.27, 15.4
Section of the project dictionary that stores a data item's name, description, and other details about each data item. 14.19
In database management systems, a file that defines the basic organisation of a database. A data dictionary contains a list of all files or tables in the database, the number of records in each file, and the names and types of each field.
A data dictionary is a collection of descriptions of the data objects or items in a data model for the benefit of programmers and others who need to refer to them. A first step in analyzing a system of objects with which users interact is to identify each object and its relationship to other objects. This process is called data modeling and results in a picture of object relationships.