SQL IMAGE Vs VARBINARY Datatype
The distinction between
VARBINARY datatype will be discussed in this session.
SQL IMAGE Datatype
IMAGE is a binary data type with a variable length data type.
IMAGE has been deprecated and will be deprecated in a future SQL Server edition. Instead, use
Example: SQL IMAGE Datatype
DECLARE @x VARCHAR(100) = ''; DECLARE @a INT = 1 WHILE @a < 100 BEGIN SET @x = @Vx + 'A' SET @a = @a + 1 END SET @x = @x + 'B' SELECT @x SELECT CONVERT(VARCHAR(100),CONVERT(IMAGE, @x));
Output: The Output will be
SQL VARBINARY(N) Datatype
The VARBINARY (
MAX) data type is used to hold pictures, pdf, word, and other files, as well as any data.
The default length is 1 when
N is not given in a data definition or variable declaration statement. When the data is likely to be very large and vary in duration, use this type.
Example: Below example demonstrates Varbinary datatype
DECLARE @a VARCHAR(MAX) SET @a = 'Govindaraj Kanniappan'; SELECT CAST(@a AS VARBINARY(MAX));
RESULT: The output will be
SQL DIFFERENCE BETWEEN IMAGE AND VARBINARY DATATYPE
There are 6 main contrast in image & varbinary in below table:-
|The IMAGE variable is exclusively used to store image files .||The VARBINAR variable is used to store any type of data|
|It uses one byte each character.||It uses one byte each character.|
|(2147483647) 231-1 bytes is the maximum storage size -2 GB.||(2 GB). The storage capacity is equal to the length of the data entered plus two bytes.|
|If an index is required , it cannot be built on the IMAGE data type. When we establish an index on this data type, it throws an exception error.||Even though an index is required, it cannot be constructed on the VARBINARY (MAX) data type. When we establish an index on this data type, it throws an exception error.|
|When just storing image files, use the IMAGE data type.||Because the IMAGE data type will be discontinued in future editions of MS SQL Server, Microsoft recommends using VARBINARY(MAX) instead of IMAGE for storing huge amounts of data in a single column.|
|Cast/Convert to IMAGE data type and vice versa is not possible.||We have the ability to convert IMAGE data types.|