Do is C backend, now the first to get a picture, then my side after receiving to spread to the blob field of database, but don't know how to put the picture up, the Internet is not much example, found a OCIBlobLocator example, or didn't understand too much, want to ask next exactly how do you write the code to insert images into a blob field? Best if you can provide the code, or provide some learning material, thank you here now