Contents
What is Blob good for?
A blob (Binary Large Object) consists of binary data stored as a single item. While data can be of any type, blob storage is particularly useful for storing media, such as audio and video, and frequently changing data, such as log files.
Is VARCHAR Max a blob?
The VARCHAR(MAX) type is a replacement for TEXT . The basic difference is that a TEXT type will always store the data in a blob whereas the VARCHAR(MAX) type will attempt to store the data directly in the row unless it exceeds the 8k limitation and at that point it stores it in a blob.
What is blob file type?
A blob is a data type that can store binary data. Since blobs can store binary data, they can be used to store images or other multimedia files. For example, a photo album could be stored in a database using a blob data type for the images, and a string data type for the captions.
Which is faster to fetch a blob or varchar?
Blobs are saved in a separate section of the file. They require an extra fileread to include in the data. For this reason varchar is fetched much faster. If you have a large blob that you access infrequently, than a blob makes more sense.
How big is a VARCHAR ( MAX ) Data Type?
The SQL Server 2005 introduced this varchar (max) data type. It replaces the large blob object Text, NText and Image data types. All these data types can store data up to 2 GB.
What do you need to know about SQL varchar?
In this article we’ll review the SQL varchar data type including a basic definition and overview, differences from varchar (n), UTF-8 support, Collation, performance considerations and more. Data plays a crucial part in any organization and an attribute by which it is defined is called its data type.
How big of a table can you store in varchar?
Due to this, we can store up to 8000 bytes of data using varchar (8000) data type. You might think of using the varchar (max) data type to store 2 GB data to resolve the string truncation issues. Let’s create a few sample tables with different size in varchar data type. We will also create a table with a varchar (max) data type.