What is Filestream SQL?

What is Filestream SQL?

FILESTREAM enables SQL Server-based applications to store unstructured data, such as documents and images, on the file system. FILESTREAM integrates the SQL Server Database Engine with an NTFS or ReFS file systems by storing varbinary(max) binary large object (BLOB) data as files on the file system.

How are files stored in database?

Store Files in SQL table

1. The “RootDirectory” column to store file location.
2. The “Filename” column to store the name of the file.
3. The “FileAttribute” column to store File attribute (Raw/Directory.
4. The “FileCreateDate” column to store file creation time.
5. The “FileSize” column to store the Size of the file.

What is blob in SQL?

An SQL BLOB is a built-in type that stores a Binary Large Object as a column value in a row of a database table. By default drivers implement Blob using an SQL locator(BLOB) , which means that a Blob object contains a logical pointer to the SQL BLOB data rather than the data itself.

How to check if SQL Server has a FILESTREAM feature?

We can check whether the SQL Server FILESTREAM feature at database level using the filegroup. The SQL Server FILESTREAM filegroup type is ‘FD’ therefore we can check the property using the above command, or we can use the print statement to give the output. If I run this query on the FILESTREAM database, we get the below output.

How do I add a database to a FILESTREAM table?

Once the database is created, open the database properties to add the file in the newly created ‘DemoFileStream’ filegroup. Specify the Database file name and select the file type as ‘FILESTREAM Data’ from the drop-down option. In the filegroup, it automatically shows the SQL Server FILESTREAM filegroup name.

What is the name of the filestreamgroup in SQL Server?

FileStreamGroup1 is the FILESTREAM filegroup. For a FILESTREAM filegroup, FILENAME refers to a path. The path up to the last folder must exist, and the last folder must not exist. In this example, c:\\data must exist. However, the filestream1 subfolder cannot exist when you execute the CREATE DATABASE statement.

Do you have to specify contains FILESTREAM clause when creating database?

Because FILESTREAM uses a special type of filegroup, when you create the database, you must specify the CONTAINS FILESTREAM clause for at least one filegroup. A FILESTREAM filegroup can contain more than one file.