Short answer: No.
Fdisk is a MS-DOS partitioning utility. It will rearange any and all partitions on a hard drive, but until the data on the drive is overwritten, it is retrievable. Under normal usage, the data is still on the drive but not accessable. There are forensic tools to retireve such data.
The only true methods of permanently erasing data is a "wipe", a low level format or physically destroying the drive platters.
Fdisk is a MS-DOS partitioning utility. It will rearange any and all partitions on a hard drive, but until the data on the drive is overwritten, it is retrievable. Under normal usage, the data is still on the drive but not accessable. There are forensic tools to retireve such data.
The only true methods of permanently erasing data is a "wipe", a low level format or physically destroying the drive platters.