Difference between Varchar Vs Nvarchar in SQL Server

✅ Difference between 🔅nvarchar and ⚜varchar in #sqlserver
In SQL Server, nvarchar and varchar are both used to store text data, but they differ in terms of their ability to store different types of characters and their storage requirements.
🔅 nvarchar
Unicode Storage:
nvarchar stands for "national variable character."
It can store any type of character from any language, thanks to its Unicode support.
This makes it ideal for applications that need to support internationalization and multilingual data.
Storage Requirements:
nvarchar uses two bytes of storage per character, regardless of the actual character.
Because it uses more storage per character, it can have performance implications if not used correctly.
Usage:
Use nvarchar when you need to store text in multiple languages or when you anticipate needing to support languages with non-Latin characters.
It's also useful when you need to ensure consistent character encoding across different systems.
varchar
Non-Unicode Storage:
varchar stands for "variable character."
It is used to store non-Unicode text data, meaning it is limited to characters defined by the SQL Server's code page (typically Latin characters).
Storage Requirements:
varchar uses one byte of storage per character for standard characters, but can use more for certain non-standard characters.
Generally, it requires less storage compared to nvarchar for the same text length.
Usage:
Use varchar when you are certain that your application will only need to support a single language or a limited set of characters.
It is more storage-efficient for applications that don't need to support international characters.