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Usually there is no use of nulls but in some case there might be some use. Like consider a case a persons address has been changed but the new address is not known. In this case it is prefer to left the field null instead of wrong address.
Wiki User
∙ 9y ago
Wiki User
∙ 8y agoNull means no value in database design. It means the value has not been assigned to the cell.
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What is the purposed normalization in database?
The purpose of normalization is to reduce the chances for anomalies to occur in a database. The Normalization also forces you to use a database in a Object orientated manner. (This is good of course.)
What are the disadvantages of normalisation?
When we use Normalisation it does not allow some of the modifications of the database. Another disadvantage of Normalisation is that it is only applicable in the Relational Database Management System.
What is the ranges of database?
ranges of database
How can you justify that a DBMS is better to use than Flat-file database?
A DBMS offers quicker access to the data within the database, particularly with larger datasets. It also makes updates to the data easier.
What is the definition of database clustering?
Database is defines as a collection related records/data. When the data in the database is grouped based on some classification it is called database clustering.
What is Nulls partner?
Zero
What is a centriade?
a centriade is a one with 609 nulls
Why would you use database?
why would you use database?
Do Group functions include nulls in calculations?
FALSE
Why would McDonald's use database?
McDonald's use database for...
Why would you use a database?
you would use a database? You would use it to store data
When is a database not a database?
When it is not in use for any reason.
Enter on the database or in the database?
We would use in rather than on. Data is stored in a database, not on a database. Data is entered into a database not onto a database.
What is active database and cloud database?
The database we use in our daily life is called as active database . The data that is stored in the database which is further stored on the cloud is called cloud database.
What software has the use of queries and reports as key functions?
database
To organize your database objects you must use the?
To organize your database objects you must use the: Navigation Pane
Why is a table created in database?
Tables are central to a database. A table stores the data. Everything else in the database, such as queries, forms and reports, use the data from the table. Without tables, a database is useless as it would have no data.Tables are central to a database. A table stores the data. Everything else in the database, such as queries, forms and reports, use the data from the table. Without tables, a database is useless as it would have no data.Tables are central to a database. A table stores the data. Everything else in the database, such as queries, forms and reports, use the data from the table. Without tables, a database is useless as it would have no data.Tables are central to a database. A table stores the data. Everything else in the database, such as queries, forms and reports, use the data from the table. Without tables, a database is useless as it would have no data.Tables are central to a database. A table stores the data. Everything else in the database, such as queries, forms and reports, use the data from the table. Without tables, a database is useless as it would have no data.Tables are central to a database. A table stores the data. Everything else in the database, such as queries, forms and reports, use the data from the table. Without tables, a database is useless as it would have no data.Tables are central to a database. A table stores the data. Everything else in the database, such as queries, forms and reports, use the data from the table. Without tables, a database is useless as it would have no data.Tables are central to a database. A table stores the data. Everything else in the database, such as queries, forms and reports, use the data from the table. Without tables, a database is useless as it would have no data.Tables are central to a database. A table stores the data. Everything else in the database, such as queries, forms and reports, use the data from the table. Without tables, a database is useless as it would have no data.Tables are central to a database. A table stores the data. Everything else in the database, such as queries, forms and reports, use the data from the table. Without tables, a database is useless as it would have no data.Tables are central to a database. A table stores the data. Everything else in the database, such as queries, forms and reports, use the data from the table. Without tables, a database is useless as it would have no data.
