A data dictionary is used in computing to mean a compilation of information about data. The purpose of a data dictionary is to give important information about the data it documents.
example of data dictionary
Data dictionary is a repository to store all information. Meta data is data about data. It is data that defines other data. The data dictionary can be metadata that describes some information about the database.
Data dictionary it contains the names and description of the dictionary tables and views.
A data dictionary is a centralized repository of information about data,. The purpose of a data dictionary in oracle is to indicate a more general software utility than a catalogue.
Data dictionary allow the user to split data about in multiple direction
Data dictionary is a set of meta-data which contains the definition and representation of data elements.It gives a single point of reference of data repository of an organization.Data dictionary lists all data elements but does not say anything about relationships between data elements.
how are the elements used for user permissions in the data dictionary
Describe what would happen if there were no data dictionary for a given database.
DATABASE is a repository of data...... it is a place which holds the entire data together......while DATA DICTIONARY defines the basis to distinguish the data....this can be in the form of tables, views
data dictionary- Used to store schema descriptions and other information such as design decisions, application program descriptions, user information, usage standards, etc. Active data dictionary is accessed by DBMS software and users/DBA. Passive data dictionary is accessed by users/DBA only.
maintaining data in updated form
The integrated data dictionary is called active if it is checked by DBMS every time a data base is accessed. It is always consistent with actual data base structure. It is automatically maintained by the system.The integrated data dictionary is called passive if it is not used in day to day database processing.
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. Data dictionaries do not contain any actual data from the database, only bookkeeping information for managing it. Without a data dictionary, however, a database management system cannot access data from the database.
A data dictionary is structured data about data (metadata), typically employed by a DBMS, either passively (requiring manual, independant updating), or actively (automatically updated alongside and prior to DBMS updates). Data dictionarie's don't really apply to the C++ language as such, but you can model a data dictionary using C++ wherever you need structured data about data within your database programs.
Data Definition Lenguage (DDL) Data Manipulation Lenguage (DML) Data Dictionary
Data Dictionary means that data about data i.e, meta data. And Meta Data means that the properties about your data. Example: - By Right clicking on any file or folder and selecting the properties option. and the properties dialog box will open on your screen as properties is called Meta Data.
One reason is to keep clean and consistent data. By understanding the process of data dictionary compilation, it can aid the system analyst in conceptualizing the system and how it works.
The data she typed into the computer was flawed. For "was" read "were" ---"data" is a plural word - check your dictionary.
The repository for definitions of data processes data flows data stores and data elements is the "DATA DICTIONARY"
Tries, it is a kind of tree data structure that can be used.