Definition of PostgreSQL Character Varying
- PostgreSQL Character Varying, also known as VARCHAR, is a data type used to store variable-length character strings in a table column.
- The ‘n‘ in VARCHAR(n) represents the maximum number of characters the column can store.
- Character Varying adjusts the storage space based on the actual length of the text, saving memory.
- It is commonly used for storing text data like names or descriptions where the length may vary.
For Example:
column_a VARCHAR(10)
It shows that ‘column_a‘ can only store a maximum of 10 characters. Exceeding the maximum number of characters will result us an error.
CHARACTER VARYING vs VARCHAR in PostgreSQL
In PostgreSQL, the terms CHARACTER VARYING and VARCHAR are often used interchangeably, but are they truly the same? In this article, We will understand these data types to clarify their similarities and differences. We’ll explore how they work, their syntax, and examples of their usage in PostgreSQL.