problem in understanding attachments

[sadia aina]

 I am working on bugzilla database for software
quality
project. i got few problems in understanding bugzilla.

1)when a bug is fixed is it necasary that every bug
contains a patch.

2) if the bug is fixed without attaching patch ,what
other possibiliteis are.

3)Is there any realtion between bug with high risk to
patches.

Aina

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