Columnar datastore avoids storing null values.
Answers
Answered by
1
Columnar datastore avoids storing null value is a True statement.
Explanation:
- A columnar 'database' is a 'database management system (DBMS)' that stores data information in columns rather than of rows.
- Column-oriented 'databases' operates on columns and are on the basis of the BigTable model. Every column is considered individually. The values of a single column are stored adjacently.
- The NULL value should be avoided in order to avoid the difficulty of select and update SQL queries and also because columns with restrictions such as primary or foreign key constraints cannot have a NULL value.
To know more about data store
Which one of the following serves is a NoSQL datastore?
https://brainly.in/question/5404196
Explain operational data store and informational data store
https://brainly.in/question/12078691
Similar questions