0
Relational tables are structured data representations, consisting of rows and columns where each row represents a unique record and each column represents a different attribute or field. They enforce a consistent schema, with data organized in a tabular format and support relationships between tables through keys. Relational databases ensure data integrity through constraints and support operations like querying and joining tables to retrieve or manipulate data efficiently.
Add your answer:
Earn +20 pts
Attributes in relational database?
In a relational database, attributes are the characteristics or properties that describe entities in a table. Attributes are represented by columns in a table and hold specific pieces of data related to the entities. Each attribute has a data type that defines the kind of data it can store (e.g., integer, string, date).
A developer of a relational database refers to a field as a?
A field in a relational database refers to a specific piece of information stored in a table, representing a single attribute about an entity. It is the smallest unit of data in a database table and each field typically corresponds to a column in the table.
The developer of a relational database refers to a file as?
In the context of a relational database, a file is typically referred to as a table. Tables are used to store structured data in rows and columns, allowing for efficient organization and retrieval of information. Each table represents a distinct entity or concept within the database schema.
In a relational database each row is called what?
In a relational database, each row is called a record. It represents a single entity or object, with each column containing specific attributes or properties of that entity. The combination of rows and columns form a table which allows for structured data storage and retrieval.
In relational databases tables are linked to each other through a?
In relational databases, tables are linked to each other through relationships defined by keys. A primary key uniquely identifies each record in a table, while a foreign key establishes a link between tables by referencing the primary key of another table. Relationships ensure data integrity and enable the retrieval of related information across multiple tables.
Attributes in relational database?
In a relational database, attributes are the characteristics or properties that describe entities in a table. Attributes are represented by columns in a table and hold specific pieces of data related to the entities. Each attribute has a data type that defines the kind of data it can store (e.g., integer, string, date).
What is the relational database?
Relational database: Relational database means a collection data stored in different tables and each table are linked together by using primary key and foreign key. In relational database, data can be accessed from one table to another without reorganising the required table. The relational database was invented by E. F. Codd at IBM in 1970.
What is the building block of a relational database?
I think "TABLE" is the main building block of relational database
In a relational database can two or more tables be liked to appear as one table?
Yes. That is how relational database work.
It is possible to have more than one table in a relational database?
You have to have more than one table in a relational database. In a relational database tables are designed to be related to other tables, so there has to be a minimum of two tables. Quite often there are a lot more than two.
In relational table two row are identical is true or false?
False.
What is a table and what role does it play in the relational model?
A table is a matrix of intersecting rows and columns. In the relational model, the table view of data makes it easy to spot and define entity relationships, thereby greatly simplifying the task of database design.
What are the components of relational database?
Table, index, trigger and column Table, index, trigger and column
How many tables are in a relational database?
A table consists of two or more records.
The developer of a relational database refers to a file as an?
In the context of a relational database, a file is commonly referred to as a table. A table is structured in rows and columns to store related data in a database system. Each table represents a specific entity or concept within the database.
What is a relational operator that yields values from all rows in a table is called?
'select' operator
What is concatenate key in a relational database?
The concatenate key is simply the combination of several columns in a table, which serves the unique key of that table.
