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Question

The ascending order of a data Hierarchy is

A
Bit-bytes-field-record-file-database
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Bit-bytes-record-field-file-database
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C
Bytes-bit-field-record-file-database
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Solution

The correct option is A Bit-bytes-field-record-file-database

The ascending order of a data Hierarchy is Bit-bytes-field-record-file-database

A hierarchical database model is a data model in which the data are organized into a tree-like structure. The data are stored as records which are connected to one another through links. A record is a collection of fields, with each field containing only one value.

Data is stored in records. A record is composed of fields and contains all the data about one particular person, company, or item in a database. In this database, a record contains the data for one customer support incident report. Records appear as rows in the database table.Data hierarchy. Data hierarchy refers to the systematic organization of data, often in a hierarchical form. Data organization involves characters, fields, records, files and so on.

Database languages are used for read, update and store data in a database. There are several such languages that can be used for this purpose; one of them is SQL (Structured Query Language). Types of DBMS languages: Data Definition Language (DDL): DDL is used for specifying the database schema.


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