• Post Reply Bookmark Topic Watch Topic
  • New Topic
programming forums Java Mobile Certification Databases Caching Books Engineering Micro Controllers OS Languages Paradigms IDEs Build Tools Frameworks Application Servers Open Source This Site Careers Other Pie Elite all forums
this forum made possible by our volunteer staff, including ...
Marshals:
  • Campbell Ritchie
  • Jeanne Boyarsky
  • Ron McLeod
  • Paul Clapham
  • Liutauras Vilda
Sheriffs:
  • paul wheaton
  • Rob Spoor
  • Devaka Cooray
Saloon Keepers:
  • Stephan van Hulst
  • Tim Holloway
  • Carey Brown
  • Frits Walraven
  • Tim Moores
Bartenders:
  • Mikalai Zaikin

delete method in B & S

 
Greenhorn
Posts: 25
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
When I am deleting record then

database.writeByte(0xFF);

where
database is instance of RandomAccessFile


and when I looked at .db file
I found this character begining of record which i deleted using deleted (recNo)



is it okay ??
because in sun instruction written

"1 byte "deleted" flag. 0 implies valid record, 1 implies deleted record "


let me know
 
Greenhorn
Posts: 6
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
Hi Pramod,

are you using a hex editor (like ultraedit) to look at the file?

Oyvind
 
mohini lalwani
Greenhorn
Posts: 25
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
I am using TextPad to read the file .
 
Ranch Hand
Posts: 759
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
I think the database file is not as simple as plain text file. To read it correctly, you have to point the RandomAccessFile pointer to the location of that byte and use its readByte() method.


Good Luck !!!

Jeffry Kristianto Yanuar (Java Instructor)
SCJP 5.0, SCJA, SCJD (UrlyBird 1.3.2)
 
My honeysuckle is blooming this year! Now to fertilize this tiny ad:
a bit of art, as a gift, the permaculture playing cards
https://gardener-gift.com
reply
    Bookmark Topic Watch Topic
  • New Topic