# Generated BLOB Field Functions

> The eXtremeDB BLOB database fields are of type `blob` (Binary Large OBject). Please use the links in the following table to view details and examples of these generated APIs:

> classname_fieldname_put() | Assign a value into a blob
> classname_fieldname_append() | Supplied value is appended to the end of a blob element
> classname_fieldname_get() | Retrieve a value from a blob
> classname_fieldname_size() | Returns the number of bytes in the blob
> Structure equivalents
> structname_fieldname_put() | Assign a value into a blob
> structname_fieldname_append() | Supplied value is appended to the end of a blob structure element
> structname_fieldname_get() | Retrieve a value from a blob
> structname_fieldname_size() | Returns the number of bytes in the blob