char and varchar (Transact-SQL) - SQL Server | Microsoft Learn
Use char when the sizes of the column data entries are consistent. Use varchar when the sizes of the column data entries vary considerably. Use varchar (max) when the sizes of the column data entries …
SQL Data Types for MySQL, SQL Server, and MS Access - W3Schools
Equal to VARCHAR (), but stores binary byte strings. The size parameter specifies the maximum column length in bytes. For BLOBs (Binary Large Objects). Max length: 255 bytes. For BLOBs (Binary Large …
Varchar - Wikipedia
A VARCHAR or variable character field is a set of character data of indeterminate length. The term varchar refers to a data type of a field (or column) in a database which can hold letters and numbers. [1]
CHAR vs VARCHAR in SQL - GeeksforGeeks
Jun 21, 2022 · It is a datatype in SQL which is used to store character string of variable length but a maximum of the set length specified. If the length of the string is less than set or fixed-length then it …
MySQL VARCHAR Data Type - Features, Examples and Equivalents
VARCHAR data type stores variable-length character data in single-byte and multibyte character sets.
13.3.2 The CHAR and VARCHAR Types - MySQL
The CHAR and VARCHAR types are similar, but differ in the way they are stored and retrieved. They also differ in maximum length and in whether trailing spaces are retained.
Difference Between CHAR, NCHAR, VARCHAR, and NVARCHAR in SQL …
Jul 7, 2024 · The VARCHAR datatype in SQL Server is used to store variable-length non-Unicode character data. Unlike the CHAR type, which always allocates a fixed amount of storage, the …
An Overview of SQL Server VARCHAR Data Type
This tutorial shows you how to use the SQL Server VARCHAR data type to store variable-length, non-Unicode string data in the database.
What is VARCHAR in SQL? – Chat2DB
May 7, 2025 · This article will explore the importance of data types in SQL, provide a detailed definition of VARCHAR, discuss best practices for its usage, highlight common pitfalls, and offer optimization …
VARCHAR – SQL Tutorial
In summary, VARCHAR is a flexible data type used for storing variable-length character data in SQL. Its efficient storage characteristics make it a popular choice for storing textual data, while its flexibility …