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What are the responsibilities of the database designer?
As the name implies, a database designer develops both the logical and physical design of the database. For hierarchical databases, they define the parent-child relationships and in relational tables, the relations between tables. They also often develop validation rules, constraints and the like.
What is each row called in a database?
In database the data is stored in tables called database tables. These tables have rows and columns. Each row is called a tuple.
What are database ables?
Database is the collection of data which are interrelated with each other. Data in database is stored in form of table these tables are known as database tables.
What those database comprise?
Database comprises of records that are related to each other. In database the data is stored in the form of tables, are called database tables .
What language Enables a database administrator to define schema components?
SQL (Structured Query Language) enables a database administrator to define schema components, such as tables, columns, indexes, and relationships in a database. By using SQL commands like CREATE TABLE, ALTER TABLE, and CREATE INDEX, administrators can create and modify the structure of a database according to their requirements.
In which database data is collected in the form of tables?
Relational databases like MySQL, PostgreSQL, Oracle, and SQL Server store data in tabular format, commonly referred to as tables. These tables consist of rows and columns, with each row representing a record and each column representing a different attribute or field of that record.
Difference between database and relational database?
A database is a collection of data organized for easy access and manipulation, while a relational database is a type of database that stores data in a structured format using tables that are related to each other through keys. In a relational database, data is organized into rows and columns, and relationships between tables can be established using keys.
What is the data language used to create a database and describe all the items in the database?
SQL (Structured Query Language) is commonly used to create and interact with databases. It is a specialized language for managing and manipulating data stored in relational database management systems. With SQL, you can define the structure of a database, create tables, insert, update, and query data stored in those tables.
What database objects allows you to search for and retrieve data?
SQL queries allow you to search for and retrieve data from a database. By writing SELECT statements with specific criteria, you can search for information in tables and retrieve the results based on your query.
How are relationship between tables expressed in a relational database?
Tables are the basic building blocks of a relational database.
What is the database that contains tables linked by common fields?
A relational database is a database that contains tables linked by common fields. These common fields are used to establish connections between the tables and to retrieve related data across multiple tables using queries.
What is a database made up?
Database comprises of records that are related to each other. In database the data is stored in the form of tables, are called database tables .
