Full Name:
PDB Files (C#, J#, and Visual Basic)

Short Name:
PDB Files (C#, J#, and Visual Basic)

Type of Entity:
C#

Abstract:
A program database (PDB) file holds debugging and project state information that allows incremental linking of a debug configuration of your program. A PDB file is created when you build with /debug (Visual Basic/C#/J#/JScript). You can build Visual Basic, C#, and J# applications with /debug:full or /debug:pdbonly. Building with /debug:full generates debuggable code. Building with /debug:pdbonly generates PDBs but does not generate the DebuggableAttribute that tells the JIT compiler that debug information is available. Use /debug:pdbonly if you want to generate PDBs for a release build that you do not want to be debuggable.

MSDN Source URL:
http://msdn2.microsoft.com/ms241903.aspx