2nd October 2019

ibm
14

What is column name?

Column names. The meaning of a column name depends on its context. A column name can be used to: Declare the name of a column, as in a CREATE TABLE statement. In a GROUP BY or ORDER BY clause, a column name specifies all values in the intermediate result table to which the clause is applied.

Likewise, what is a column in a database called?

In the context of a relational database, a row—also called a tuple—represents a single, implicitly structured data item in a table. In simple terms, a database table can be thought of as consisting of rows and columns. Each column expects a data value of a particular type.

What is a column based database?

A column-oriented DBMS (or columnar database management system) is a database management system (DBMS) that stores data tables by column rather than by row. Practical use of a column store versus a row store differs little in the relational DBMS world.
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