IT DATA DICTIONARY



It Data Dictionary

Data Definition of Data by Merriam-Webster. A data dictionary contains a list of all files in the database, the number of records in each file, and the names and types of each field. Most database management systems keep the data dictionary hidden from users to prevent them from accidentally destroying its contents., data dictionary: Database about a database. A data dictionary defines the structure of the database itself (not that of the data held in the database) and is used in control and maintenance of large databases. Among other items of information, it records (1) what data is stored, (2) name, description, and characteristics of each data element,.

What is a Data Dictionary? DATAVERSITY

Data Dictionary Real Estate Standards Organization. WPA Intelligence Data Dictionary. WPA Intelligence has developed models and modeled audience tags for voters across the country. Every universe defined below can be subset according to any demographic group or political geography, from gender and age group to state, Congressional District, and State Legislative District., The data dictionary has more than 80 core data elements and more than 30 Trauma Quality Improvement Program (TQIP) data elements. Information provided in the dictionary includes the following: Name of the data element; Definition of the data element; Data type of the data element (many data elements have comments provided to assist in the.

Data Dictionary. The data dictionary provides details about every data attribute and metric available in the NICE inContact analytics suite of features and products. With this topic, you can determine the definition of a particular attribute or metric, its calculation if applicable, and details about where to … Data Dictionary. The data dictionary provides details about every data attribute and metric available in the NICE inContact analytics suite of features and products. With this topic, you can determine the definition of a particular attribute or metric, its calculation if applicable, and details about where to …

12/13/2017 · Description about what is data dictionary in SQL Server and generate or export the SQL Server database data dictionary by using SQL Query. Data dictionary in SQL server is collection of explanation about tables, columns/fields, data type, length, constraints, relationship between tables and data model to understand the participated objects in the database. Data Dictionary. The data dictionary provides details about every data attribute and metric available in the NICE inContact analytics suite of features and products. With this topic, you can determine the definition of a particular attribute or metric, its calculation if applicable, and details about where to …

What is ABAP data dictionary? SAP ABAP data dictionary is a central and structured source of data for development of objects. It is a database independent DDL (Data Definition Language) and mainly deals with create, edit, drop the database tables. In data dictionary you can define and maintain objects which are related to database. buildingSMART Data Dictionary The buildingSMART Data Dictionary (bSDD) is a shared library of objects and their attributes utilizing ISO 12006-3 ontology for the building and construction industry. It is used to identify objects in the built environment and their specific properties regardless of language. The bSDD is open and international, allowing architects, engineers, consultants, owners…

buildingSMART Data Dictionary The buildingSMART Data Dictionary (bSDD) is a shared library of objects and their attributes utilizing ISO 12006-3 ontology for the building and construction industry. It is used to identify objects in the built environment and their specific properties regardless of language. The bSDD is open and international, allowing architects, engineers, consultants, owners… 12/23/2017 · A Data Dictionary is a description of data in business terms, also including information about the data such as data types, details of structure, and security restrictions. Unlike Business Glossaries, which focus on data across the organization, Data Dictionaries support Data Warehouses by defining how to use them. The content of the Data Dictionary often originates from the logical data …

What is ABAP data dictionary? SAP ABAP data dictionary is a central and structured source of data for development of objects. It is a database independent DDL (Data Definition Language) and mainly deals with create, edit, drop the database tables. In data dictionary you can define and maintain objects which are related to database. The data dictionary provides details about every data attribute and metric available in the NICE inContact analytics suite of features and products. With this topic, you can determine the definition of a particular attribute or metric, its calculation if applicable, and details about where to find it and how to use it.

The DBMS software manages the active data dictionary automatically. The modification is an automatic task and most RDBMS has active data dictionary. It is also known as integrated data dictionary. Managed by the users and is modified manually when the database structure change. Also known as non Ein Data Dictionary (Datenwörterbuch oder Datenkatalog) ist ein Katalog von Metadaten, der die Definitionen und Darstellungsregeln für alle Anwendungsdaten eines Unternehmens enthält sowie die Beziehungen zwischen den verschiedenen Datenobjekten.Das Ziel eines Data Dictionary ist, den Datenbestand redundanzfrei zu halten und einheitlich zu strukturieren.

NTDS data dictionary. The benefits of having a national trauma registry standard that can support comparative analyses across all facilities are enormous. The combination of having the NTDS standard as well as vendor- supplied mappings (to support that … Data definition is - factual information (such as measurements or statistics) used as a basis for reasoning, discussion, or calculation. How to use data in a sentence. Is data singular or plural?

What is the Data Dictionary? It’s Real Estate’s “Rosetta Stone” The Data Dictionary serves as the real estate industry’s “Rosetta Stone” for real estate data. Hundreds of MLSs, and other source providers gather data. But what good is it if the data cannot be shared or understood? The Data Dictionary ensures that each system “speaks” […] buildingSMART Data Dictionary The buildingSMART Data Dictionary (bSDD) is a shared library of objects and their attributes utilizing ISO 12006-3 ontology for the building and construction industry. It is used to identify objects in the built environment and their specific properties regardless of language. The bSDD is open and international, allowing architects, engineers, consultants, owners…

Data dictionary Article about data dictionary by The. The data dictionary provides details about every data attribute and metric available in the NICE inContact analytics suite of features and products. With this topic, you can determine the definition of a particular attribute or metric, its calculation if applicable, and details about where to find it and how to use it., 12/23/2017 · A Data Dictionary is a description of data in business terms, also including information about the data such as data types, details of structure, and security restrictions. Unlike Business Glossaries, which focus on data across the organization, Data Dictionaries support Data Warehouses by defining how to use them. The content of the Data Dictionary often originates from the logical data ….

Chapter 14 MySQL Data Dictionary Developer Zone

it data dictionary

Data Dictionary in DBMS tutorialspoint.com. The DBMS software manages the active data dictionary automatically. The modification is an automatic task and most RDBMS has active data dictionary. It is also known as integrated data dictionary. Managed by the users and is modified manually when the database structure change. Also known as non, 6/4/2014В В· Heyy guys here is a tutorial on how to create a basic Data Dictionary!.

DATA meaning in the Cambridge English Dictionary

it data dictionary

Data Dictionary in DBMS tutorialspoint.com. The EAS Dictionary web site has been updated! It now includes new enhancements, such as, faster searching and global data filtering. You can search this site for the dictionaries associated with the following business areas: Student Records (SRDB), Scheduling, Course History, Admissions, CARS, SHOTS, Financial Aid, and RBHS Course Catalog. https://id.wikipedia.org/wiki/Kamus_data 11/9/2017В В· The Data Dictionary contains detailed information on the content, format and structure of each water data set: rivers, lakes, groundwater, transitional, coastal and marine waters, and water quantity. Latest released definitions.

it data dictionary


11/9/2017В В· The Data Dictionary contains detailed information on the content, format and structure of each water data set: rivers, lakes, groundwater, transitional, coastal and marine waters, and water quantity. Latest released definitions The data dictionary has more than 80 core data elements and more than 30 Trauma Quality Improvement Program (TQIP) data elements. Information provided in the dictionary includes the following: Name of the data element; Definition of the data element; Data type of the data element (many data elements have comments provided to assist in the

10/29/2019 · The NHS Data Model and Dictionary provides a reference point for assured information standards to support health care activities within the NHS in England. buildingSMART Data Dictionary The buildingSMART Data Dictionary (bSDD) is a shared library of objects and their attributes utilizing ISO 12006-3 ontology for the building and construction industry. It is used to identify objects in the built environment and their specific properties regardless of language. The bSDD is open and international, allowing architects, engineers, consultants, owners…

A Data Dictionary Definition. A Data Dictionary is a collection of names, definitions, and attributes about data elements that are being used or captured in a database, information system, or part of a … Ein Data-Dictionary – deutsch Datenwörterbuch, Datenkatalog oder etwas unschärfer Datenverzeichnis genannt – ist ein Katalog von Metadaten, der die Definitionen und Darstellungsregeln für alle Anwendungsdaten eines Unternehmens und die Beziehungen zwischen den verschiedenen Datenobjekten enthält, damit der Datenbestand redundanzfrei und einheitlich strukturiert wird.

What is the Data Dictionary? It’s Real Estate’s “Rosetta Stone” The Data Dictionary serves as the real estate industry’s “Rosetta Stone” for real estate data. Hundreds of MLSs, and other source providers gather data. But what good is it if the data cannot be shared or understood? The Data Dictionary ensures that each system “speaks” […] NTDS data dictionary. The benefits of having a national trauma registry standard that can support comparative analyses across all facilities are enormous. The combination of having the NTDS standard as well as vendor- supplied mappings (to support that …

The DBMS software manages the active data dictionary automatically. The modification is an automatic task and most RDBMS has active data dictionary. It is also known as integrated data dictionary. Managed by the users and is modified manually when the database structure change. Also known as non The DBMS software manages the active data dictionary automatically. The modification is an automatic task and most RDBMS has active data dictionary. It is also known as integrated data dictionary. Managed by the users and is modified manually when the database structure change. Also known as non

A Data Dictionary Definition. A Data Dictionary is a collection of names, definitions, and attributes about data elements that are being used or captured in a database, information system, or part of a … data definition: 1. information, especially facts or numbers, collected to be examined and considered and used to…. Learn more.

Ein Data Dictionary (Datenwörterbuch oder Datenkatalog) ist ein Katalog von Metadaten, der die Definitionen und Darstellungsregeln für alle Anwendungsdaten eines Unternehmens enthält sowie die Beziehungen zwischen den verschiedenen Datenobjekten.Das Ziel eines Data Dictionary ist, den Datenbestand redundanzfrei zu halten und einheitlich zu strukturieren. A data dictionary contains a list of all files in the database, the number of records in each file, and the names and types of each field. Most database management systems keep the data dictionary hidden from users to prevent them from accidentally destroying its contents.

What is Data Dictionary? Webopedia Definition

it data dictionary

Data-Dictionary – Wikipedia. A Data Dictionary Definition. A Data Dictionary is a collection of names, definitions, and attributes about data elements that are being used or captured in a database, information system, or part of a …, The data dictionary has more than 80 core data elements and more than 30 Trauma Quality Improvement Program (TQIP) data elements. Information provided in the dictionary includes the following: Name of the data element; Definition of the data element; Data type of the data element (many data elements have comments provided to assist in the.

Data Dictionary Rutgers University

DATA meaning in the Cambridge English Dictionary. Ein Data-Dictionary – deutsch Datenwörterbuch, Datenkatalog oder etwas unschärfer Datenverzeichnis genannt – ist ein Katalog von Metadaten, der die Definitionen und Darstellungsregeln für alle Anwendungsdaten eines Unternehmens und die Beziehungen zwischen den verschiedenen Datenobjekten enthält, damit der Datenbestand redundanzfrei und einheitlich strukturiert wird., 11/9/2017 · The Data Dictionary contains detailed information on the content, format and structure of each water data set: rivers, lakes, groundwater, transitional, coastal and marine waters, and water quantity. Latest released definitions.

WPA Intelligence Data Dictionary. WPA Intelligence has developed models and modeled audience tags for voters across the country. Every universe defined below can be subset according to any demographic group or political geography, from gender and age group to state, Congressional District, and State Legislative District. 6/4/2014В В· Heyy guys here is a tutorial on how to create a basic Data Dictionary!

The DBMS software manages the active data dictionary automatically. The modification is an automatic task and most RDBMS has active data dictionary. It is also known as integrated data dictionary. Managed by the users and is modified manually when the database structure change. Also known as non The data dictionary provides details about every data attribute and metric available in the NICE inContact analytics suite of features and products. With this topic, you can determine the definition of a particular attribute or metric, its calculation if applicable, and details about where to find it and how to use it.

Ein Data Dictionary (Datenwörterbuch oder Datenkatalog) ist ein Katalog von Metadaten, der die Definitionen und Darstellungsregeln für alle Anwendungsdaten eines Unternehmens enthält sowie die Beziehungen zwischen den verschiedenen Datenobjekten.Das Ziel eines Data Dictionary ist, den Datenbestand redundanzfrei zu halten und einheitlich zu strukturieren. data dictionary[′dad·ə ‚dik·shə‚ner·ē] (computer science) A catalog which contains the names and structures of all data types. data dictionary (database) A data structure that stores meta-data, i.e. data about data. The term "data dictionary" has several uses. Most generally it is a set of data descriptions that can be shared by several

Data Dictionary. The data dictionary provides details about every data attribute and metric available in the NICE inContact analytics suite of features and products. With this topic, you can determine the definition of a particular attribute or metric, its calculation if applicable, and details about where to … 11/9/2017 · The Data Dictionary contains detailed information on the content, format and structure of each water data set: rivers, lakes, groundwater, transitional, coastal and marine waters, and water quantity. Latest released definitions

buildingSMART Data Dictionary The buildingSMART Data Dictionary (bSDD) is a shared library of objects and their attributes utilizing ISO 12006-3 ontology for the building and construction industry. It is used to identify objects in the built environment and their specific properties regardless of language. The bSDD is open and international, allowing architects, engineers, consultants, owners… data dictionary: Database about a database. A data dictionary defines the structure of the database itself (not that of the data held in the database) and is used in control and maintenance of large databases. Among other items of information, it records (1) what data is stored, (2) name, description, and characteristics of each data element,

Ein Data Dictionary (Datenwörterbuch oder Datenkatalog) ist ein Katalog von Metadaten, der die Definitionen und Darstellungsregeln für alle Anwendungsdaten eines Unternehmens enthält sowie die Beziehungen zwischen den verschiedenen Datenobjekten.Das Ziel eines Data Dictionary ist, den Datenbestand redundanzfrei zu halten und einheitlich zu strukturieren. data definition: 1. information, especially facts or numbers, collected to be examined and considered and used to…. Learn more.

12/23/2017 · A Data Dictionary is a description of data in business terms, also including information about the data such as data types, details of structure, and security restrictions. Unlike Business Glossaries, which focus on data across the organization, Data Dictionaries support Data Warehouses by defining how to use them. The content of the Data Dictionary often originates from the logical data … Ein Data Dictionary (Datenwörterbuch oder Datenkatalog) ist ein Katalog von Metadaten, der die Definitionen und Darstellungsregeln für alle Anwendungsdaten eines Unternehmens enthält sowie die Beziehungen zwischen den verschiedenen Datenobjekten.Das Ziel eines Data Dictionary ist, den Datenbestand redundanzfrei zu halten und einheitlich zu strukturieren.

10/29/2019В В· The NHS Data Model and Dictionary provides a reference point for assured information standards to support health care activities within the NHS in England. The data dictionary provides details about every data attribute and metric available in the NICE inContact analytics suite of features and products. With this topic, you can determine the definition of a particular attribute or metric, its calculation if applicable, and details about where to find it and how to use it.

12/23/2017 · A Data Dictionary is a description of data in business terms, also including information about the data such as data types, details of structure, and security restrictions. Unlike Business Glossaries, which focus on data across the organization, Data Dictionaries support Data Warehouses by defining how to use them. The content of the Data Dictionary often originates from the logical data … Ein Data Dictionary (Datenwörterbuch oder Datenkatalog) ist ein Katalog von Metadaten, der die Definitionen und Darstellungsregeln für alle Anwendungsdaten eines Unternehmens enthält sowie die Beziehungen zwischen den verschiedenen Datenobjekten.Das Ziel eines Data Dictionary ist, den Datenbestand redundanzfrei zu halten und einheitlich zu strukturieren.

11/9/2017 · The Data Dictionary contains detailed information on the content, format and structure of each water data set: rivers, lakes, groundwater, transitional, coastal and marine waters, and water quantity. Latest released definitions buildingSMART Data Dictionary The buildingSMART Data Dictionary (bSDD) is a shared library of objects and their attributes utilizing ISO 12006-3 ontology for the building and construction industry. It is used to identify objects in the built environment and their specific properties regardless of language. The bSDD is open and international, allowing architects, engineers, consultants, owners…

What is the Data Dictionary? It’s Real Estate’s “Rosetta Stone” The Data Dictionary serves as the real estate industry’s “Rosetta Stone” for real estate data. Hundreds of MLSs, and other source providers gather data. But what good is it if the data cannot be shared or understood? The Data Dictionary ensures that each system “speaks” […] data dictionary: Database about a database. A data dictionary defines the structure of the database itself (not that of the data held in the database) and is used in control and maintenance of large databases. Among other items of information, it records (1) what data is stored, (2) name, description, and characteristics of each data element,

Ein Data-Dictionary – deutsch Datenwörterbuch, Datenkatalog oder etwas unschärfer Datenverzeichnis genannt – ist ein Katalog von Metadaten, der die Definitionen und Darstellungsregeln für alle Anwendungsdaten eines Unternehmens und die Beziehungen zwischen den verschiedenen Datenobjekten enthält, damit der Datenbestand redundanzfrei und einheitlich strukturiert wird. 11/9/2017 · The Data Dictionary contains detailed information on the content, format and structure of each water data set: rivers, lakes, groundwater, transitional, coastal and marine waters, and water quantity. Latest released definitions

What is Data Dictionary tutorialspoint.com. 12/23/2017 · A Data Dictionary is a description of data in business terms, also including information about the data such as data types, details of structure, and security restrictions. Unlike Business Glossaries, which focus on data across the organization, Data Dictionaries support Data Warehouses by defining how to use them. The content of the Data Dictionary often originates from the logical data …, What is the Data Dictionary? It’s Real Estate’s “Rosetta Stone” The Data Dictionary serves as the real estate industry’s “Rosetta Stone” for real estate data. Hundreds of MLSs, and other source providers gather data. But what good is it if the data cannot be shared or understood? The Data Dictionary ensures that each system “speaks” […].

What is Data Dictionary? Webopedia Definition

it data dictionary

Data Definition of Data by Merriam-Webster. Ein Data Dictionary (Datenwörterbuch oder Datenkatalog) ist ein Katalog von Metadaten, der die Definitionen und Darstellungsregeln für alle Anwendungsdaten eines Unternehmens enthält sowie die Beziehungen zwischen den verschiedenen Datenobjekten.Das Ziel eines Data Dictionary ist, den Datenbestand redundanzfrei zu halten und einheitlich zu strukturieren., The data dictionary provides details about every data attribute and metric available in the NICE inContact analytics suite of features and products. With this topic, you can determine the definition of a particular attribute or metric, its calculation if applicable, and details about where to find it and how to use it..

it data dictionary

What Is a Data Dictionary? UC Merced Library. The data dictionary has more than 80 core data elements and more than 30 Trauma Quality Improvement Program (TQIP) data elements. Information provided in the dictionary includes the following: Name of the data element; Definition of the data element; Data type of the data element (many data elements have comments provided to assist in the, 6/4/2014В В· Heyy guys here is a tutorial on how to create a basic Data Dictionary!.

NATIONAL TRAUMA DATA STANDARD DATA DICTIONARY

it data dictionary

Data Dictionary Real Estate Standards Organization. data dictionary: Database about a database. A data dictionary defines the structure of the database itself (not that of the data held in the database) and is used in control and maintenance of large databases. Among other items of information, it records (1) what data is stored, (2) name, description, and characteristics of each data element, https://id.wikipedia.org/wiki/Kamus_data WPA Intelligence Data Dictionary. WPA Intelligence has developed models and modeled audience tags for voters across the country. Every universe defined below can be subset according to any demographic group or political geography, from gender and age group to state, Congressional District, and State Legislative District..

it data dictionary


The EAS Dictionary web site has been updated! It now includes new enhancements, such as, faster searching and global data filtering. You can search this site for the dictionaries associated with the following business areas: Student Records (SRDB), Scheduling, Course History, Admissions, CARS, SHOTS, Financial Aid, and RBHS Course Catalog. The data dictionary provides details about every data attribute and metric available in the NICE inContact analytics suite of features and products. With this topic, you can determine the definition of a particular attribute or metric, its calculation if applicable, and details about where to find it and how to use it.

What is ABAP data dictionary? SAP ABAP data dictionary is a central and structured source of data for development of objects. It is a database independent DDL (Data Definition Language) and mainly deals with create, edit, drop the database tables. In data dictionary you can define and maintain objects which are related to database. The EAS Dictionary web site has been updated! It now includes new enhancements, such as, faster searching and global data filtering. You can search this site for the dictionaries associated with the following business areas: Student Records (SRDB), Scheduling, Course History, Admissions, CARS, SHOTS, Financial Aid, and RBHS Course Catalog.

Data definition is - factual information (such as measurements or statistics) used as a basis for reasoning, discussion, or calculation. How to use data in a sentence. Is data singular or plural? data dictionary: Database about a database. A data dictionary defines the structure of the database itself (not that of the data held in the database) and is used in control and maintenance of large databases. Among other items of information, it records (1) what data is stored, (2) name, description, and characteristics of each data element,

What is the Data Dictionary? It’s Real Estate’s “Rosetta Stone” The Data Dictionary serves as the real estate industry’s “Rosetta Stone” for real estate data. Hundreds of MLSs, and other source providers gather data. But what good is it if the data cannot be shared or understood? The Data Dictionary ensures that each system “speaks” […] 12/13/2017 · Description about what is data dictionary in SQL Server and generate or export the SQL Server database data dictionary by using SQL Query. Data dictionary in SQL server is collection of explanation about tables, columns/fields, data type, length, constraints, relationship between tables and data model to understand the participated objects in the database.

9/10/2019 · A data dictionary should be a one-stop-shop for IT system analysts, designers and developers to understand everything about their metadata. They are used to help translate data level business requirements into technical requirements, and should ideally be able to provide this information in an easily understood, structured and organized way. Ein Data-Dictionary – deutsch Datenwörterbuch, Datenkatalog oder etwas unschärfer Datenverzeichnis genannt – ist ein Katalog von Metadaten, der die Definitionen und Darstellungsregeln für alle Anwendungsdaten eines Unternehmens und die Beziehungen zwischen den verschiedenen Datenobjekten enthält, damit der Datenbestand redundanzfrei und einheitlich strukturiert wird.

A data dictionary contains a list of all files in the database, the number of records in each file, and the names and types of each field. Most database management systems keep the data dictionary hidden from users to prevent them from accidentally destroying its contents. data dictionary: Database about a database. A data dictionary defines the structure of the database itself (not that of the data held in the database) and is used in control and maintenance of large databases. Among other items of information, it records (1) what data is stored, (2) name, description, and characteristics of each data element,

What is ABAP data dictionary? SAP ABAP data dictionary is a central and structured source of data for development of objects. It is a database independent DDL (Data Definition Language) and mainly deals with create, edit, drop the database tables. In data dictionary you can define and maintain objects which are related to database. 10/29/2019В В· The NHS Data Model and Dictionary provides a reference point for assured information standards to support health care activities within the NHS in England.

A Data Dictionary Definition. A Data Dictionary is a collection of names, definitions, and attributes about data elements that are being used or captured in a database, information system, or part of a … 11/9/2017 · The Data Dictionary contains detailed information on the content, format and structure of each water data set: rivers, lakes, groundwater, transitional, coastal and marine waters, and water quantity. Latest released definitions

Data definition is - factual information (such as measurements or statistics) used as a basis for reasoning, discussion, or calculation. How to use data in a sentence. Is data singular or plural? 9/10/2019В В· A data dictionary should be a one-stop-shop for IT system analysts, designers and developers to understand everything about their metadata. They are used to help translate data level business requirements into technical requirements, and should ideally be able to provide this information in an easily understood, structured and organized way.

data dictionary[′dad·ə ‚dik·shə‚ner·ē] (computer science) A catalog which contains the names and structures of all data types. data dictionary (database) A data structure that stores meta-data, i.e. data about data. The term "data dictionary" has several uses. Most generally it is a set of data descriptions that can be shared by several A Data Dictionary Definition. A Data Dictionary is a collection of names, definitions, and attributes about data elements that are being used or captured in a database, information system, or part of a …

7/27/2018В В· A data dictionary contains metadata i.e data about the database. The data dictionary is very important as it contains information such as what is in the database, who is allowed to access it, where is the database physically stored etc. The users of the database normally don't interact with the data What is ABAP data dictionary? SAP ABAP data dictionary is a central and structured source of data for development of objects. It is a database independent DDL (Data Definition Language) and mainly deals with create, edit, drop the database tables. In data dictionary you can define and maintain objects which are related to database.

WPA Intelligence Data Dictionary. WPA Intelligence has developed models and modeled audience tags for voters across the country. Every universe defined below can be subset according to any demographic group or political geography, from gender and age group to state, Congressional District, and State Legislative District. 12/23/2017 · A Data Dictionary is a description of data in business terms, also including information about the data such as data types, details of structure, and security restrictions. Unlike Business Glossaries, which focus on data across the organization, Data Dictionaries support Data Warehouses by defining how to use them. The content of the Data Dictionary often originates from the logical data …

it data dictionary

Data definition is - factual information (such as measurements or statistics) used as a basis for reasoning, discussion, or calculation. How to use data in a sentence. Is data singular or plural? data dictionary: Database about a database. A data dictionary defines the structure of the database itself (not that of the data held in the database) and is used in control and maintenance of large databases. Among other items of information, it records (1) what data is stored, (2) name, description, and characteristics of each data element,