D ata Dictionary is a tool which is used to create/design database. Data Dictionary creates table,table's field,table's attribute.T...
Data Dictionary is a tool which is used to create/design database.Data Dictionary creates table,table's field,table's attribute.This concept comes under DBMS(Database Management System).It maintain database information.It is also called as meta data(data about data).
Example of Table(SQL)
Data Dictionary contains definition of structure,elements,data flow,data store etc.
1)Data Element:-Smallest part of data.
2)Data Structure:-Group of elements.
3)Data Flow:-Data at motion.
4)Data Store:-Data at rest.
Format of data dictionary:-
Its format contains-
1)Data Element
2)Data Flow
3)Data Structure
4)Entities and Process.
Sample Format:-
DATA DICTIONARY:STUD_ROLL NO.
LENGTH:4
RANGE:0 TO 9999
DATA STORE:Roll no. of student.
Related posts:-
1)Decision Tree
2)Decision Table
| Roll no. | Name | Board | Percentage |
|---|---|---|---|
| 1 | ABC | CBSE | 81% |
| 2 | XYZ | ICSE | 66% |
| 3 | QWE | UP | 77% |
Data Dictionary contains definition of structure,elements,data flow,data store etc.
1)Data Element:-Smallest part of data.
2)Data Structure:-Group of elements.
3)Data Flow:-Data at motion.
4)Data Store:-Data at rest.
Format of data dictionary:-
Its format contains-
1)Data Element
2)Data Flow
3)Data Structure
4)Entities and Process.
Sample Format:-
DATA DICTIONARY:STUD_ROLL NO.
LENGTH:4
RANGE:0 TO 9999
DATA STORE:Roll no. of student.
Related posts:-
1)Decision Tree
2)Decision Table
That's all about what is data dictionary and its techniques,if you have any query then leave your comments and don't forgot to follow me on Google+,Facebook,Twitter.
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