Character
– A character is the most basic logical data element. It consists of a single alphabetic, numeric, or other symbol.
Is the basic element of data?
1. A basic element of data in a file. Explanation:
Fields
are the basic elements of data in a file. … Records are a collection of related fields.
Is the most basic logical data element like a single letter or number?
A character
is the most basic logical data element. It is a single letter, number, or special character, such as a punctuation mark, or a symbol, such as $. a collection of related fields. A record represents a collection of attributes that describe an entity.
What contains logical data?
A logical model contains
representations of entities and attributes, relationships, unique identifiers, subtypes and supertypes
, and constraints between relationships. … A logical model can also contain domain model objects, or reference one or more domain or glossary models.
What is the main element of database?
The five major components of a database are
hardware, software, data, procedure, and database access language
.
What software is used to create modify and gain access to a database?
In order to create, modify, and gain access to a database, special software, called
the database management system
, is required. Relational database tables require a common and typically unique data item.
A record
is a collection of related fields.
What are called the data elements?
Any unit of data defined for processing
is a data element; for example, ACCOUNT NUMBER, NAME, ADDRESS and CITY. A data element is defined by size (in characters) and type (alphanumeric, numeric only, true/false, date, etc.). A specific set of values or range of values may also be part of the definition.
Where is a single element of data stored?
A single data element is stored in
a computer field
. The information stored on a modern computer has a very complicated digital layout and is split into many components. Likewise, field is a smaller part of an entire database that stores a single data unit.
What are key data elements?
What is a Key Data Element? Key Data Element (KDE) also referred to as Critical Data Element(CDE) can be defined as
elements with material impact on your organization’s business operations, decisions, and other data demands i.e regulatory, compliance, and market demands
.
What is a logical data format?
Logical files do not contain data. They
contain a description of records found in one or more physical files
. A logical file is a view or representation of one or more physical files. Logical files that contain more than one format are referred to as multi-format logical files.
What is logical level in database?
Logical: This level comprises
the information that is actually stored in the database in the form of tables
. It also stores the relationship among the data entities in relatively simple structures. At this level, the information available to the user at the view level is unknown.
What does a logical data model look like?
A logical data model describes
the data in as much detail as possible
, without regard to how they will be physical implemented in the database. Features of a logical data model include: Includes all entities and relationships among them. All attributes for each entity are specified.
What is the smallest element of database?
The smallest element of database is ‘
bit’
or a ‘character’.
What are the basic elements of a DBMS?
- Software. …
- Data. …
- Procedures. …
- Database languages. …
- Query processor. …
- Runtime database manager. …
- Database manager. …
- Database engine.
What are the main two elements of database?
- The database schema.
- Schema objects.
- Indexes.
- Tables.
- Fields and columns.
- Records and rows.
- Keys.
- Relationships.
