Where do you stand on variable naming in your application code?

Just out of curisoity really, I've worked in a number of places over the years and encountered multiple coding styles.
Just thought I'd throw it out there and see what your personal preferences are for variable naming??
I've seen a lot just use v_ for any variable..
v_name
v_dateofbirth
v_ageSome prefix with the scope instead of just v..
l_localname
g_globaldateThen some add the datatype..
lv_localvarchar
ln_localnumber
gb_globalbooelanAnd some even use c/java stylee..
vMyName
dDateOfBirthp for parameters..
p_param1or i/o
i_in_param
o_out_paramAnd so on...
Me, I generally just fit in with the 'house style', unless I think it's that bad that it's unusable, but that's been pretty rare.
You?
Edited by: smon on Mar 17, 2011 2:21 AM

smon wrote:
Just out of curisoity really, I've worked in a number of places over the years and encountered multiple coding styles.
Just thought I'd throw it out there and see what your personal preferences are for variable naming??
I've seen a lot just use v_ for any variable..
v_name
v_dateofbirth
v_ageSome prefix with the scope instead of just v..
l_localname
g_globaldateThen some add the datatype..
lv_localvarchar
ln_localnumber
gb_globalbooelan
Yes, I just tend to use "v_" for variables, "p_" for parameters, "c_" for constants, "cur_" for cursors, "pkg_" for packages etc.
The problem with using e.g. "lv_" for varchars and "ln_" for numbers etc. is that at some point you'll get a requirement change such that something that was stored as a number now needs to be a varchar because the business has changed the "codes" being used and you would end up having to change the variable name throughout the code, or worse still leave the variable name but just change it's datatype and have something that looks inconsistent.
And some even use c/java stylee..
vMyName
dDateOfBirth
Yuk!
p for parameters..
p_param1or i/o
i_in_param
o_out_param
just "p_". Keep it simple.

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