Data models pdf download






















Here you can download simple blank biodata formats which you can use to apply for any job. Bio Data Format 1. Bio Data Format 2. Bio Data Format 3. Bio Data Format 4. Bio Data Format 5. Bio Data Format 6.

Bio Data Form 7. Bio Data Format 8. Bio Data Format 9. Bio Data Format for Fresher 1. Bio Data Format for Fresher 2. New Biodata Formats. You can download the above free biodata formats in word formats and you can make edits as per your requirements.

In the olden days people used the word bio data more frequently. But bio data is a shorter form of resume. Whereas in resume you. In most case, bio data format should be limited to 1 page and the resume can consist of pages. CV means Curriculum Vitae, it is a longer form of biodata. Flat data model is the first and foremost introduced model and in this all the data used is kept in the same plane. Since it was used earlier this model was not so scientific. Entity relationship model is based on the notion of the real world entities and their relationships.

While formulating the real world scenario in to the database model an entity set is created and this model is dependent on two vital things and they are :. An entity has a real world property called attribute and attribute define by a set of values called domain. For example, in a university a student is an entity, university is the database, name and age and sex are the attributes.

The relationships among entities define the logical association between entities. Relational model is the most popular model and the most extensively used model.

In this model the data can be stored in the tables and this storing is called as relation, the relations can be normalized and the normalized relation values are called atomic values. Each row in a relation contains unique value and it is called as tuple, each column contains value from same domain and it is called as attribute. Network model has the entities which are organized in a graphical representation and some entities in the graph can be accessed through several paths.

Hierarchical model has one parent entity with several children entity but at the top we should have only one entity called root. For example, department is the parent entity called root and it has several children entities like students, professors and many more. Object oriented data model is one of the developed data model and this can hold the audio, video and graphic files. These consist of data piece and the methods which are the DBMS instructions. Record base model is used to specify the overall structure of the database and in this there are many record types.

Each record type has fixed no. This complexity is not problem because it gives efficient results and widespread with huge applications. It has a feature which allows working with other models like working with the very known relation model. Semi structured data model is a self describing data model, in this the information that is normally associated with a scheme is contained within the data and this property is called as the self describing property.

Associative model has a division property, this divides the real world things about which data is to be recorded in two sorts i. Thus, this model does the division for dividing the real world data to the entities and associations.



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