# 400 Size of the BLOB File Increases When Updating a Record Containing BLOB Fields

---

To explain this problem try the airline demo available at Elevate software Web site. just modify two things :

DBIMAGE1.readonly = False
Mainform.activecontrol = DBGIMAGE1

check the size of the blob file (airline.blb)

compile and launch airline.exe

for 10 or 15 records do this CTRL-C (copy the image from DBIMAGE1) , then CTRL-V (paste the image to DBIMAGE1), then click on the next button of the DBNavigator (to update the modified record and to go to the next one). Check the size of the blob file (airline.blb) again and you will see that now it's bigger than the first one, but the table content is the same one. Now if you restructure the table, the size will be equal to the first one. I've got a application that use many acces to blobstream (read and write), before launching it the blob file is 300 Ko and after leaving it it's 18Mo.......