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only one relationship can exists between two tables in the MS ACCESS software

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12y ago

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What does a primary key do?

A primary key is a unique identifier for a record in a database table, ensuring that each entry is distinct and can be accurately referenced. It prevents duplicate records and enforces data integrity by establishing a reliable way to access and manipulate data. Additionally, a primary key can facilitate relationships between different tables in a relational database.


What is the basic difference between RDBMS and DBMS?

DBMS acronym for Database management system. There are number of DBMS like RDBMS, ORDBMS, HRDBMS etc . RDBMS is basically to define relationship between the tales and also it follows various codds rules.


What are the basic components of a database?

Tables, Entities, Attributes, Primary Keys, and Foreign Keys


Is the primary key field?

In a relational database it is used as a way to uniquely identify a record in a table. It also allows tables within the database to reference the specific record within the table. For example, a common practice is to have the database automatically determine the Primary Key with an auto-incrementing value starting at 1 upon inserting each new record. The reason for uniquely identifying the record is there could be cases where the data between two records are exactly the same, but they need to be separate as they do represent different things. For example, let's say you have a database containing the name of a person "John Smith". What would happen if you added "John Smith" into the database multiple times without a Primary Key? By providing the Primary Key as shown below, you can now reference the correct "John Smith". Id Name 1 John Smith 2 John Smith


What are some basic database functions that a spreadsheet cannot perform?

A spreadsheet is a computer application that simulates a paper accounting worksheet. It displays data in a two-dimensional matrix or grid consisting of rows and columns. Each column is a field, which used to define and store data and each row is a record, which is a connected set of one or more fields that describes an object such as person. While a spreadsheet allows for the creation of multiple tables, it does not support even the most basic database functionality such as support for self-documentation through metadata, enforcement of data types or domains to ensure consistency of data within a column, defined relationships among tables, or constraints to ensure consistency of data across related tables.

Related Questions

What is a database made up of in access?

Relational Database


What organizes data as a collection of tables in Access?

database


How many tables are required in access database?

one


What is rdbm?

Rdbms stands for Relational database management system.It uses tables(relations) for storing the data.In mathematical terms these tables are called relations.


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.


An access report can be generated from?

Reports in Access can be generated directly from database tables or through queries that have got their data from tables.


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 the largest database size allowed in Microsoft access 2007?

Maximum size of a single Microsoft access 2007 is 2 GB. They can be linked to other tables in a database.


Difference between database and relational database?

A relational database is a type of database, so in one sense there is no difference. There are various kinds of database. A relational database is one type. Others include network and hierarchical.


What database object allows you to select specific information from one or many tables?

You are referring to the Microsoft Access Database. This allows you the ability to select specific information from one or many tables.


What consist of a collection of tables which each contains information on a specific subject in mircosoft access?

database