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Difference between logical database and physical database?
A logical database refers to the conceptual schema or model of data relationships and structures, independent of how data is stored or accessed. On the other hand, a physical database involves the actual implementation of the database on a specific hardware system, detailing how data is stored and accessed. The logical database design focuses on the organization of data, while the physical database design focuses on optimizing performance and storage efficiency.
What is the difference between logical database and physical database?
A logical database refers to the way data is organized, modeled, and accessed by users, focusing on the structure and relationships of data. In contrast, a physical database relates to how data is actually stored on disks, including indexes, partitions, and access paths designed for efficient data retrieval and storage.
When what and magnetic fields both exist it is called an electromanetic field?
An electromagnetic field is a physical field produced by electrically charged particles. It consists of electric fields and magnetic fields that interact with each other. When both electric and magnetic fields coexist, they form an electromagnetic field.
A field or a combination of fields that has a unique value is a?
A unique value is a distinct data point that differentiates one record from another in a database. When a field or combination of fields in a database table has a unique value, it means that no other records can have the same value for that particular field or combination of fields, ensuring data integrity and preventing duplication.
What is a region of space that has a physical quantity called?
A region of space that has a physical quantity associated with it is called a field. Fields can describe properties such as electric and magnetic fields in physics, or temperature and pressure fields in fluid dynamics. These fields assign a value to each point in space based on the physical quantity being studied.
In a database a field that uniquely identifies a particular record in a table is called?
In a database, a field that uniquely identifies a particular record in a table is called
Collection of related tables is called a?
field
What is a field in a database that contains formulas or functions in Excel?
In a database a field with a formula is called a calculated field. A calculated field should actually be in a table, as it can be calculated from data in other fields in the table, so it normally only appears in queries, reports and forms. In a spreadsheet it would just be a calculation.
A category of information stored in a column of a database is called a?
Field
What is the definition and field for a database f?
Collection of inter related data is called table.Collection of tables is called database.Field of database is its attribute.
What are the examples of fields in a database?
You could have a text field called Name. You could have a date field called Date of Birth.
What is one piece of information keyed into your database called?
A data point in a database is referred to as a field. It represents a single piece of data about a specific entity or object within a database.
A category of information stored in column of database is called a?
A category of information stored in a column of a database is called a field. Each field represents a specific piece of data within a record or row of the database table. Fields are used to store different types of information, such as names, dates, numbers, or text.
A developer of a relational database refers to a field as a?
In a relational databaseA field is called a column.A record is called a row (of multiple columns).A file is called a table (of multiple rows).
Is 'A database uses characteristics such as field size and data type to define each field' false?
No it is not false. Database fields do have field sizes and data types.No it is not false. Database fields do have field sizes and data types.No it is not false. Database fields do have field sizes and data types.No it is not false. Database fields do have field sizes and data types.No it is not false. Database fields do have field sizes and data types.No it is not false. Database fields do have field sizes and data types.No it is not false. Database fields do have field sizes and data types.No it is not false. Database fields do have field sizes and data types.No it is not false. Database fields do have field sizes and data types.No it is not false. Database fields do have field sizes and data types.No it is not false. Database fields do have field sizes and data types.
What is the first row of the excel database that contains field names called?
heading row
A group of similar records is called a field?
Actually, a group of similar records is called a database table, while a field refers to a single piece of data within a record. In a database table, each field represents a different attribute or characteristic.
