Key points of this
- It’s a queue
- It’s in tabular form
I’ll write it simply.
What is a column ?
A “column” of a table represented in a matrix.
or
The “items” of data stored in a database
What is a Column?
- Basic Concept
- A “column” refers to the vertical sections of a table. It’s essentially a vertical series of data.
- Example
- Think of a spreadsheet application like Excel. If you look at the top of the sheet, you’ll see labels like “A,” “B,” and “C.” These labels denote columns. So, a column is a vertical grouping of data in a table.
- In Databases
- In databases, columns are used in tables to represent different fields. For example, consider the following table:
- This table has three columns: “Name,” “Gender,” and “Age.” Each column represents a different attribute or field of the data.
- In Layouts
- In website or blog design, “column” is used to describe the layout structure. For example, “2-column layout” or “3-column layout” refers to the number of vertical sections in the design. A “2-column layout” means there are two vertical sections on the page.
Name | Gender | Age
----------------------
Alice | Female | 30
Bob | Male | 25
Charlie | Male | 35
Summary
When you encounter the term “column,” think of it as referring to a “vertical section” or “field” in a table or database. It helps in organizing and categorizing data effectively.