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<div class="moz-cite-prefix">Rick Pettit schreef op 29-1-2015 om
22:49:<br>
</div>
<blockquote
cite="mid:8EBFB5ED-2253-413B-B1BB-B13F020D2376@vailsys.com"
type="cite">
<meta http-equiv="Content-Type" content="text/html;
charset=windows-1252">
Roelof,
<div class=""><br class="">
</div>
<div class="">You don’t need a variable if you don’t care about
the return value of the function you are calling.</div>
<div class=""><br class="">
</div>
<div class="">To be clear, your problem with the badmatch is due
to Db2 already having a value assigned which is not equal to the
atom ‘ok’.</div>
<div class=""><br class="">
</div>
<div class="">Try this at the shell to see what that value is:</div>
<div class=""><br class="">
</div>
<div class=""> Db2. % don’t forget the period there</div>
<div class=""><br class="">
</div>
<div class="">More than likely it is set to {ok}, which is what
you previously had db:destroy/1 returning.</div>
<div class=""><br class="">
</div>
<div class="">Since erlang is a single-assignment language, you
cannot simply assign a different value to Db2 once it is bound.</div>
<div class=""><br class="">
</div>
<div class="">You *can* use syntax that appears just like an
assignment and have that work, provided the value returned from
the function matches exactly the value currently bound to the
variable on the left-hand side of the “=“.</div>
<div class=""><br class="">
</div>
<div class="">For example:</div>
<div class=""><br class="">
</div>
<div class="">
<div style="margin: 0px; font-size: 11px; font-family: Menlo;"
class="">
<div style="margin: 0px;" class="">Erlang/OTP 17 [erts-6.2]
[source] [64-bit] [smp:8:8] [async-threads:10] [hipe]
[kernel-poll:false]</div>
<div style="margin: 0px; min-height: 13px;" class=""><br
class="">
</div>
<div style="margin: 0px;" class="">Eshell V6.2 (abort with
^G)</div>
<div style="margin: 0px;" class="">1> Db2 = {ok}.</div>
<div style="margin: 0px;" class="">{ok}</div>
<div style="margin: 0px;" class="">2> Db2.</div>
<div style="margin: 0px;" class="">{ok}</div>
<div style="margin: 0px;" class="">3> Db2 = {ok}.</div>
<div style="margin: 0px;" class="">{ok}</div>
<div style="margin: 0px;" class="">4> Db2 = ok.</div>
<div style="margin: 0px;" class="">** exception error: no
match of right hand side value ok</div>
<div style="margin: 0px;" class="">5> Db2 = {ok}.</div>
<div style="margin: 0px;" class="">{ok}</div>
<div style="margin: 0px;" class="">6> f(Db2).</div>
<div style="margin: 0px;" class="">ok</div>
<div style="margin: 0px;" class="">7> Db2 = ok.</div>
<div style="margin: 0px;" class="">ok</div>
<div style="margin: 0px;" class="">8> Db2 = {ok}.</div>
<div style="margin: 0px;" class="">** exception error: no
match of right hand side value {ok}</div>
<div style="margin: 0px;" class="">9> Db2 = ok.</div>
<div style="margin: 0px;" class="">ok</div>
<div class=""><br class="">
</div>
</div>
</div>
<div class="">===</div>
<div class=""><br class="">
</div>
<div class="">Here’s what’s going on there:</div>
<div class=""><br class="">
</div>
<div class="">1. I bound the value {ok} to the variable Db2</div>
<div class=""><br class="">
</div>
<div class="">2. I check the value of Db2</div>
<div class=""><br class="">
</div>
<div class="">3. I “assign” Db2 the same value — this isn’t really
an assignment now, it is a match, and in this case both the
left-hand side and right-hand side have same value, so match
succeeds</div>
<div class=""><br class="">
</div>
<div class="">4. I attempt to assign Db2 a different value—since
Db2 was bound to {ok} and the right-hand side now has ‘ok’, that
match fails—thus the match error</div>
<div class=""><br class="">
</div>
<div class="">5. I “assign” Db2 the original value — again, this
isn’t really an assignment, it is a match, which again succeeds
for same reason as (3) above</div>
<div class=""><br class="">
</div>
<div class="">6. I use the f() function at the shell to “forget”
about the value previously bound to Db2, effectively making Db2
unbound to any value (and as such it can now be assigned any
value)</div>
<div class=""><br class="">
</div>
<div class="">7. I assign a different value, this time ‘ok’, to
Db2 — no errors that time, because it was an assignment, not a
match</div>
<div class=""><br class="">
</div>
<div class="">8. I attempt to match Db2 with the previous
value—and there’s that match error again</div>
<div class=""><br class="">
</div>
<div class="">9. I “assign” Db2 the new value again—now it is a
match, and the match is good so no error</div>
<div class=""><br class="">
</div>
<div class=""><br class="">
</div>
<div class="">Does that make sense now?</div>
<div class=""><br class="">
</div>
<div class="">-Rick</div>
<div class=""><br class="">
<div>
<blockquote type="cite" class="">
<div class="">On Jan 29, 2015, at 1:53 PM, Roelof Wobben
<<a moz-do-not-send="true"
href="mailto:r.wobben@home.nl" class="">r.wobben@home.nl</a>>
wrote:</div>
<br class="Apple-interchange-newline">
<div class="">
<meta content="text/html; charset=windows-1252"
http-equiv="Content-Type" class="">
<div bgcolor="#FFFFFF" text="#000000" class="">
<div class="moz-cite-prefix">I did some trail and error
and saw this :<br class="">
<br class="">
c(db).
<div data-row="2" class="terminal-row">{ok,db} </div>
<div data-row="3" class="terminal-row">14> Db1 = db:new(). </div>
<div data-row="4" class="terminal-row">[] </div>
<div data-row="5" class="terminal-row">15> Db2 = db:destroy(Db1). </div>
<div data-row="6" class="terminal-row">** exception error: no match of right hand side value ok </div>
<div data-row="7" class="terminal-row">16> db:destroy(Db1). </div>
ok <br class="">
<br class="">
So it seems you do not have to use a variable when
destroying. <br class="">
<br class="">
Roelof<br class="">
<br class="">
<br class="">
<br class="">
Rick Pettit schreef op 29-1-2015 om 20:40:<br class="">
</div>
<blockquote
cite="mid:20C06585-CD06-4404-9EB3-D5D5529580BD@vailsys.com"
type="cite" class="">
<meta http-equiv="Content-Type" content="text/html;
charset=windows-1252" class="">
Oops, meant to add that as for the exception error no
match of right hand side value ok, is it possible you
previously bound the variable Db2 at the shell?
<div class=""><br class="">
</div>
<div class="">If so, then though what you have appears
to be an assignment, it is actually a match, and one
which has failed because Db2 has been bound to a
value other than ‘ok’.</div>
<div class=""><br class="">
</div>
<div class="">You can do the following if you want the
shell to “forget” about Db2’s previous value,
effectively unbinding it and allowing for a
subsequent assignment to a different value:</div>
<div class=""><br class="">
</div>
<div class=""> f(Db2).</div>
<div class=""><br class="">
</div>
<div class="">-Rick</div>
<div class=""><br class="">
<div class="">
<blockquote type="cite" class="">
<div class="">On Jan 29, 2015, at 1:38 PM, Rick
Pettit <<a moz-do-not-send="true"
href="mailto:rpettit@vailsys.com" class="">rpettit@vailsys.com</a>>
wrote:</div>
<br class="Apple-interchange-newline">
<div class="">
<meta http-equiv="Content-Type"
content="text/html; charset=windows-1252"
class="">
<div style="word-wrap: break-word;
-webkit-nbsp-mode: space;
-webkit-line-break: after-white-space;"
class="">Your db:destroy/1 function doesn’t
use the parameter passed in—thus the error
about ‘Db’ being unused.
<div class=""><br class="">
</div>
<div class="">Since nothing is actually
being “destroyed” there, you have a couple
options:</div>
<div class=""><br class="">
</div>
<div class=""> (1) modify destroy so it
takes no arguments (kind of
pointless—might as well do away with the
function altogether)</div>
<div class=""><br class="">
</div>
<div class=""> (2) rewrite the function
head like so to inform the compiler you
don’t care to use Db in the function body:</div>
<div class=""><br class="">
</div>
<div class="">destroy(_Db) -></div>
<div class=""> ok.</div>
<div class=""><br class="">
</div>
<div class=""><br class="">
</div>
<div class=""><br class="">
</div>
<div class="">-Rick</div>
<div class=""><br class="">
<div class="">
<blockquote type="cite" class="">
<div class="">On Jan 29, 2015, at 1:25
PM, Roelof Wobben <<a
moz-do-not-send="true"
href="mailto:r.wobben@home.nl"
class="">r.wobben@home.nl</a>>
wrote:</div>
<br class="Apple-interchange-newline">
<div class="">
<div class="moz-cite-prefix"
style="font-family: Helvetica;
font-size: 12px; font-style:
normal; font-variant: normal;
font-weight: normal;
letter-spacing: normal;
line-height: normal; orphans:
auto; text-align: start;
text-indent: 0px; text-transform:
none; white-space: normal; widows:
auto; word-spacing: 0px;
-webkit-text-stroke-width: 0px;
background-color: rgb(255, 255,
255);">Rick Pettit schreef op
29-1-2015 om 20:16:<br class="">
</div>
<blockquote
cite="mid:55690AB8-242D-4061-BC51-97846B0E76DB@vailsys.com"
type="cite" style="font-family:
Helvetica; font-size: 12px;
font-style: normal; font-variant:
normal; font-weight: normal;
letter-spacing: normal;
line-height: normal; orphans:
auto; text-align: start;
text-indent: 0px; text-transform:
none; white-space: normal; widows:
auto; word-spacing: 0px;
-webkit-text-stroke-width: 0px;
background-color: rgb(255, 255,
255);" class="">Comments inline
below.
<div class=""><br class="">
</div>
<div class="">-Rick</div>
<div class=""><br class="">
<div class="">
<blockquote type="cite"
class="">
<div class="">On Jan 29,
2015, at 1:14 PM, Roelof
Wobben <<a
moz-do-not-send="true"
href="mailto:r.wobben@home.nl"
class="">r.wobben@home.nl</a>>
wrote:</div>
<br
class="Apple-interchange-newline">
<div class="">
<div bgcolor="#FFFFFF"
text="#000000" class="">
<div
class="moz-cite-prefix"><a
moz-do-not-send="true" class="moz-txt-link-abbreviated"
href="mailto:e@bestmx.net">e@bestmx.net</a><span
class="Apple-converted-space"> </span>schreef op 29-1-2015 om 20:06:<br
class="">
</div>
<blockquote
cite="mid:54CA84BD.6090908@bestmx.net"
type="cite" class="">
<blockquote
type="cite" class="">So
i have to make a
tuple of the data
and add it in a
list.<span
class="Apple-converted-space"> </span><br
class="">
<br class="">
I thought I could do
something like this
:<span
class="Apple-converted-space"> </span><br
class="">
<br class="">
write(Key, Data, Db)
-><span
class="Apple-converted-space"> </span><br
class="">
<span
class="Apple-converted-space"> </span>[
{key, data} | Db ]<span
class="Apple-converted-space"> </span><br class="">
<br class="">
but then I see some
error messages.<span
class="Apple-converted-space"> </span><br class="">
</blockquote>
<br class="">
what messages?<span
class="Apple-converted-space"> </span><br
class="">
<br class="">
as far as i can
_theorize_<span
class="Apple-converted-space"> </span><br
class="">
the most probably your
Db is not a list, and
it should be.<span
class="Apple-converted-space"> </span><br
class="">
_______________________________________________<span
class="Apple-converted-space"> </span><br
class="">
erlang-questions
mailing list<span
class="Apple-converted-space"> </span><br
class="">
<a
moz-do-not-send="true"
class="moz-txt-link-abbreviated"
href="mailto:erlang-questions@erlang.org">erlang-questions@erlang.org</a><span
class="Apple-converted-space"> </span><br class="">
<a
moz-do-not-send="true"
class="moz-txt-link-freetext"
href="http://erlang.org/mailman/listinfo/erlang-questions">http://erlang.org/mailman/listinfo/erlang-questions</a><span
class="Apple-converted-space"> </span><br class="">
<br class="">
</blockquote>
<br class="">
Here is my code so far :<span
class="Apple-converted-space"> </span><br class="">
<br class="">
-module(db).<br class="">
<br class="">
-export([new/0,
destroy/1]).<br class="">
<br class="">
new() -><br class="">
<span
class="Apple-converted-space"> </span>[].<br
class="">
<br class="">
destroy(Db) -><br
class="">
<span
class="Apple-converted-space"> </span>{ok}.<br
class="">
</div>
</div>
</blockquote>
<div class=""><br class="">
</div>
<div class="">Why are you
returning a tuple here
instead of simply ‘ok’ ?</div>
<br class="">
</div>
</div>
</blockquote>
<br style="font-family: Helvetica;
font-size: 12px; font-style:
normal; font-variant: normal;
font-weight: normal;
letter-spacing: normal;
line-height: normal; orphans:
auto; text-align: start;
text-indent: 0px; text-transform:
none; white-space: normal; widows:
auto; word-spacing: 0px;
-webkit-text-stroke-width: 0px;
background-color: rgb(255, 255,
255);" class="">
<span style="font-family: Helvetica;
font-size: 12px; font-style:
normal; font-variant: normal;
font-weight: normal;
letter-spacing: normal;
line-height: normal; orphans:
auto; text-align: start;
text-indent: 0px; text-transform:
none; white-space: normal; widows:
auto; word-spacing: 0px;
-webkit-text-stroke-width: 0px;
background-color: rgb(255, 255,
255); float: none; display: inline
!important;" class="">Because of
this output :<span
class="Apple-converted-space"> </span></span><br
style="font-family: Helvetica;
font-size: 12px; font-style:
normal; font-variant: normal;
font-weight: normal;
letter-spacing: normal;
line-height: normal; orphans:
auto; text-align: start;
text-indent: 0px; text-transform:
none; white-space: normal; widows:
auto; word-spacing: 0px;
-webkit-text-stroke-width: 0px;
background-color: rgb(255, 255,
255);" class="">
<br style="font-family: Helvetica;
font-size: 12px; font-style:
normal; font-variant: normal;
font-weight: normal;
letter-spacing: normal;
line-height: normal; orphans:
auto; text-align: start;
text-indent: 0px; text-transform:
none; white-space: normal; widows:
auto; word-spacing: 0px;
-webkit-text-stroke-width: 0px;
background-color: rgb(255, 255,
255);" class="">
<div data-row="1"
class="terminal-row"
style="font-family: Helvetica;
font-size: 12px; font-style:
normal; font-variant: normal;
font-weight: normal;
letter-spacing: normal;
line-height: normal; orphans:
auto; text-align: start;
text-indent: 0px; text-transform:
none; white-space: normal; widows:
auto; word-spacing: 0px;
-webkit-text-stroke-width: 0px;
background-color: rgb(255, 255,
255);">10> c(db). </div>
<div data-row="2"
class="terminal-row"
style="font-family: Helvetica;
font-size: 12px; font-style:
normal; font-variant: normal;
font-weight: normal;
letter-spacing: normal;
line-height: normal; orphans:
auto; text-align: start;
text-indent: 0px; text-transform:
none; white-space: normal; widows:
auto; word-spacing: 0px;
-webkit-text-stroke-width: 0px;
background-color: rgb(255, 255,
255);">db.erl:8: Warning: variable 'Db' is unused </div>
<div data-row="3"
class="terminal-row"
style="font-family: Helvetica;
font-size: 12px; font-style:
normal; font-variant: normal;
font-weight: normal;
letter-spacing: normal;
line-height: normal; orphans:
auto; text-align: start;
text-indent: 0px; text-transform:
none; white-space: normal; widows:
auto; word-spacing: 0px;
-webkit-text-stroke-width: 0px;
background-color: rgb(255, 255,
255);">{ok,db} </div>
<div data-row="4"
class="terminal-row"
style="font-family: Helvetica;
font-size: 12px; font-style:
normal; font-variant: normal;
font-weight: normal;
letter-spacing: normal;
line-height: normal; orphans:
auto; text-align: start;
text-indent: 0px; text-transform:
none; white-space: normal; widows:
auto; word-spacing: 0px;
-webkit-text-stroke-width: 0px;
background-color: rgb(255, 255,
255);">11> Db1 = db:new(). </div>
<div data-row="5"
class="terminal-row"
style="font-family: Helvetica;
font-size: 12px; font-style:
normal; font-variant: normal;
font-weight: normal;
letter-spacing: normal;
line-height: normal; orphans:
auto; text-align: start;
text-indent: 0px; text-transform:
none; white-space: normal; widows:
auto; word-spacing: 0px;
-webkit-text-stroke-width: 0px;
background-color: rgb(255, 255,
255);">[] </div>
<div data-row="6"
class="terminal-row"
style="font-family: Helvetica;
font-size: 12px; font-style:
normal; font-variant: normal;
font-weight: normal;
letter-spacing: normal;
line-height: normal; orphans:
auto; text-align: start;
text-indent: 0px; text-transform:
none; white-space: normal; widows:
auto; word-spacing: 0px;
-webkit-text-stroke-width: 0px;
background-color: rgb(255, 255,
255);">12> Db2 = db:destroy(Db1). </div>
<span style="font-family: Helvetica;
font-size: 12px; font-style:
normal; font-variant: normal;
font-weight: normal;
letter-spacing: normal;
line-height: normal; orphans:
auto; text-align: start;
text-indent: 0px; text-transform:
none; white-space: normal; widows:
auto; word-spacing: 0px;
-webkit-text-stroke-width: 0px;
background-color: rgb(255, 255,
255); float: none; display: inline
!important;" class="">** exception error: no match of right hand side value ok <span
class="Apple-converted-space"> </span></span><br
style="font-family: Helvetica;
font-size: 12px; font-style:
normal; font-variant: normal;
font-weight: normal;
letter-spacing: normal;
line-height: normal; orphans:
auto; text-align: start;
text-indent: 0px; text-transform:
none; white-space: normal; widows:
auto; word-spacing: 0px;
-webkit-text-stroke-width: 0px;
background-color: rgb(255, 255,
255);" class="">
<br style="font-family: Helvetica;
font-size: 12px; font-style:
normal; font-variant: normal;
font-weight: normal;
letter-spacing: normal;
line-height: normal; orphans:
auto; text-align: start;
text-indent: 0px; text-transform:
none; white-space: normal; widows:
auto; word-spacing: 0px;
-webkit-text-stroke-width: 0px;
background-color: rgb(255, 255,
255);" class="">
<span style="font-family: Helvetica;
font-size: 12px; font-style:
normal; font-variant: normal;
font-weight: normal;
letter-spacing: normal;
line-height: normal; orphans:
auto; text-align: start;
text-indent: 0px; text-transform:
none; white-space: normal; widows:
auto; word-spacing: 0px;
-webkit-text-stroke-width: 0px;
background-color: rgb(255, 255,
255); float: none; display: inline
!important;" class="">When I do
this :<span
class="Apple-converted-space"> </span></span><br
style="font-family: Helvetica;
font-size: 12px; font-style:
normal; font-variant: normal;
font-weight: normal;
letter-spacing: normal;
line-height: normal; orphans:
auto; text-align: start;
text-indent: 0px; text-transform:
none; white-space: normal; widows:
auto; word-spacing: 0px;
-webkit-text-stroke-width: 0px;
background-color: rgb(255, 255,
255);" class="">
<br style="font-family: Helvetica;
font-size: 12px; font-style:
normal; font-variant: normal;
font-weight: normal;
letter-spacing: normal;
line-height: normal; orphans:
auto; text-align: start;
text-indent: 0px; text-transform:
none; white-space: normal; widows:
auto; word-spacing: 0px;
-webkit-text-stroke-width: 0px;
background-color: rgb(255, 255,
255);" class="">
<span style="font-family: Helvetica;
font-size: 12px; font-style:
normal; font-variant: normal;
font-weight: normal;
letter-spacing: normal;
line-height: normal; orphans:
auto; text-align: start;
text-indent: 0px; text-transform:
none; white-space: normal; widows:
auto; word-spacing: 0px;
-webkit-text-stroke-width: 0px;
background-color: rgb(255, 255,
255); float: none; display: inline
!important;" class="">-module(db).</span><br
style="font-family: Helvetica;
font-size: 12px; font-style:
normal; font-variant: normal;
font-weight: normal;
letter-spacing: normal;
line-height: normal; orphans:
auto; text-align: start;
text-indent: 0px; text-transform:
none; white-space: normal; widows:
auto; word-spacing: 0px;
-webkit-text-stroke-width: 0px;
background-color: rgb(255, 255,
255);" class="">
<br style="font-family: Helvetica;
font-size: 12px; font-style:
normal; font-variant: normal;
font-weight: normal;
letter-spacing: normal;
line-height: normal; orphans:
auto; text-align: start;
text-indent: 0px; text-transform:
none; white-space: normal; widows:
auto; word-spacing: 0px;
-webkit-text-stroke-width: 0px;
background-color: rgb(255, 255,
255);" class="">
<span style="font-family: Helvetica;
font-size: 12px; font-style:
normal; font-variant: normal;
font-weight: normal;
letter-spacing: normal;
line-height: normal; orphans:
auto; text-align: start;
text-indent: 0px; text-transform:
none; white-space: normal; widows:
auto; word-spacing: 0px;
-webkit-text-stroke-width: 0px;
background-color: rgb(255, 255,
255); float: none; display: inline
!important;" class="">-export([new/0,
destroy/1, write/3]).</span><br
style="font-family: Helvetica;
font-size: 12px; font-style:
normal; font-variant: normal;
font-weight: normal;
letter-spacing: normal;
line-height: normal; orphans:
auto; text-align: start;
text-indent: 0px; text-transform:
none; white-space: normal; widows:
auto; word-spacing: 0px;
-webkit-text-stroke-width: 0px;
background-color: rgb(255, 255,
255);" class="">
<br style="font-family: Helvetica;
font-size: 12px; font-style:
normal; font-variant: normal;
font-weight: normal;
letter-spacing: normal;
line-height: normal; orphans:
auto; text-align: start;
text-indent: 0px; text-transform:
none; white-space: normal; widows:
auto; word-spacing: 0px;
-webkit-text-stroke-width: 0px;
background-color: rgb(255, 255,
255);" class="">
<span style="font-family: Helvetica;
font-size: 12px; font-style:
normal; font-variant: normal;
font-weight: normal;
letter-spacing: normal;
line-height: normal; orphans:
auto; text-align: start;
text-indent: 0px; text-transform:
none; white-space: normal; widows:
auto; word-spacing: 0px;
-webkit-text-stroke-width: 0px;
background-color: rgb(255, 255,
255); float: none; display: inline
!important;" class="">new() -></span><br
style="font-family: Helvetica;
font-size: 12px; font-style:
normal; font-variant: normal;
font-weight: normal;
letter-spacing: normal;
line-height: normal; orphans:
auto; text-align: start;
text-indent: 0px; text-transform:
none; white-space: normal; widows:
auto; word-spacing: 0px;
-webkit-text-stroke-width: 0px;
background-color: rgb(255, 255,
255);" class="">
<span style="font-family: Helvetica;
font-size: 12px; font-style:
normal; font-variant: normal;
font-weight: normal;
letter-spacing: normal;
line-height: normal; orphans:
auto; text-align: start;
text-indent: 0px; text-transform:
none; white-space: normal; widows:
auto; word-spacing: 0px;
-webkit-text-stroke-width: 0px;
background-color: rgb(255, 255,
255); float: none; display: inline
!important;" class=""> [].</span><br
style="font-family: Helvetica;
font-size: 12px; font-style:
normal; font-variant: normal;
font-weight: normal;
letter-spacing: normal;
line-height: normal; orphans:
auto; text-align: start;
text-indent: 0px; text-transform:
none; white-space: normal; widows:
auto; word-spacing: 0px;
-webkit-text-stroke-width: 0px;
background-color: rgb(255, 255,
255);" class="">
<br style="font-family: Helvetica;
font-size: 12px; font-style:
normal; font-variant: normal;
font-weight: normal;
letter-spacing: normal;
line-height: normal; orphans:
auto; text-align: start;
text-indent: 0px; text-transform:
none; white-space: normal; widows:
auto; word-spacing: 0px;
-webkit-text-stroke-width: 0px;
background-color: rgb(255, 255,
255);" class="">
<span style="font-family: Helvetica;
font-size: 12px; font-style:
normal; font-variant: normal;
font-weight: normal;
letter-spacing: normal;
line-height: normal; orphans:
auto; text-align: start;
text-indent: 0px; text-transform:
none; white-space: normal; widows:
auto; word-spacing: 0px;
-webkit-text-stroke-width: 0px;
background-color: rgb(255, 255,
255); float: none; display: inline
!important;" class="">destroy(Db)
-></span><br
style="font-family: Helvetica;
font-size: 12px; font-style:
normal; font-variant: normal;
font-weight: normal;
letter-spacing: normal;
line-height: normal; orphans:
auto; text-align: start;
text-indent: 0px; text-transform:
none; white-space: normal; widows:
auto; word-spacing: 0px;
-webkit-text-stroke-width: 0px;
background-color: rgb(255, 255,
255);" class="">
<span style="font-family: Helvetica;
font-size: 12px; font-style:
normal; font-variant: normal;
font-weight: normal;
letter-spacing: normal;
line-height: normal; orphans:
auto; text-align: start;
text-indent: 0px; text-transform:
none; white-space: normal; widows:
auto; word-spacing: 0px;
-webkit-text-stroke-width: 0px;
background-color: rgb(255, 255,
255); float: none; display: inline
!important;" class=""> ok.</span><br
style="font-family: Helvetica;
font-size: 12px; font-style:
normal; font-variant: normal;
font-weight: normal;
letter-spacing: normal;
line-height: normal; orphans:
auto; text-align: start;
text-indent: 0px; text-transform:
none; white-space: normal; widows:
auto; word-spacing: 0px;
-webkit-text-stroke-width: 0px;
background-color: rgb(255, 255,
255);" class="">
<br style="font-family: Helvetica;
font-size: 12px; font-style:
normal; font-variant: normal;
font-weight: normal;
letter-spacing: normal;
line-height: normal; orphans:
auto; text-align: start;
text-indent: 0px; text-transform:
none; white-space: normal; widows:
auto; word-spacing: 0px;
-webkit-text-stroke-width: 0px;
background-color: rgb(255, 255,
255);" class="">
<span style="font-family: Helvetica;
font-size: 12px; font-style:
normal; font-variant: normal;
font-weight: normal;
letter-spacing: normal;
line-height: normal; orphans:
auto; text-align: start;
text-indent: 0px; text-transform:
none; white-space: normal; widows:
auto; word-spacing: 0px;
-webkit-text-stroke-width: 0px;
background-color: rgb(255, 255,
255); float: none; display: inline
!important;" class="">write(Key,
Element, Db) -></span><br
style="font-family: Helvetica;
font-size: 12px; font-style:
normal; font-variant: normal;
font-weight: normal;
letter-spacing: normal;
line-height: normal; orphans:
auto; text-align: start;
text-indent: 0px; text-transform:
none; white-space: normal; widows:
auto; word-spacing: 0px;
-webkit-text-stroke-width: 0px;
background-color: rgb(255, 255,
255);" class="">
<span style="font-family: Helvetica;
font-size: 12px; font-style:
normal; font-variant: normal;
font-weight: normal;
letter-spacing: normal;
line-height: normal; orphans:
auto; text-align: start;
text-indent: 0px; text-transform:
none; white-space: normal; widows:
auto; word-spacing: 0px;
-webkit-text-stroke-width: 0px;
background-color: rgb(255, 255,
255); float: none; display: inline
!important;" class=""> [ {Key,
Element} | Db ].<span
class="Apple-converted-space"> </span></span><br
style="font-family: Helvetica;
font-size: 12px; font-style:
normal; font-variant: normal;
font-weight: normal;
letter-spacing: normal;
line-height: normal; orphans:
auto; text-align: start;
text-indent: 0px; text-transform:
none; white-space: normal; widows:
auto; word-spacing: 0px;
-webkit-text-stroke-width: 0px;
background-color: rgb(255, 255,
255);" class="">
<br style="font-family: Helvetica;
font-size: 12px; font-style:
normal; font-variant: normal;
font-weight: normal;
letter-spacing: normal;
line-height: normal; orphans:
auto; text-align: start;
text-indent: 0px; text-transform:
none; white-space: normal; widows:
auto; word-spacing: 0px;
-webkit-text-stroke-width: 0px;
background-color: rgb(255, 255,
255);" class="">
<span style="font-family: Helvetica;
font-size: 12px; font-style:
normal; font-variant: normal;
font-weight: normal;
letter-spacing: normal;
line-height: normal; orphans:
auto; text-align: start;
text-indent: 0px; text-transform:
none; white-space: normal; widows:
auto; word-spacing: 0px;
-webkit-text-stroke-width: 0px;
background-color: rgb(255, 255,
255); float: none; display: inline
!important;" class="">Roelof</span><br
style="font-family: Helvetica;
font-size: 12px; font-style:
normal; font-variant: normal;
font-weight: normal;
letter-spacing: normal;
line-height: normal; orphans:
auto; text-align: start;
text-indent: 0px; text-transform:
none; white-space: normal; widows:
auto; word-spacing: 0px;
-webkit-text-stroke-width: 0px;
background-color: rgb(255, 255,
255);" class="">
<br style="font-family: Helvetica;
font-size: 12px; font-style:
normal; font-variant: normal;
font-weight: normal;
letter-spacing: normal;
line-height: normal; orphans:
auto; text-align: start;
text-indent: 0px; text-transform:
none; white-space: normal; widows:
auto; word-spacing: 0px;
-webkit-text-stroke-width: 0px;
background-color: rgb(255, 255,
255);" class="">
<br style="font-family: Helvetica;
font-size: 12px; font-style:
normal; font-variant: normal;
font-weight: normal;
letter-spacing: normal;
line-height: normal; orphans:
auto; text-align: start;
text-indent: 0px; text-transform:
none; white-space: normal; widows:
auto; word-spacing: 0px;
-webkit-text-stroke-width: 0px;
background-color: rgb(255, 255,
255);" class="">
<br style="font-family: Helvetica;
font-size: 12px; font-style:
normal; font-variant: normal;
font-weight: normal;
letter-spacing: normal;
line-height: normal; orphans:
auto; text-align: start;
text-indent: 0px; text-transform:
none; white-space: normal; widows:
auto; word-spacing: 0px;
-webkit-text-stroke-width: 0px;
background-color: rgb(255, 255,
255);" class="">
<span style="font-family: Helvetica;
font-size: 12px; font-style:
normal; font-variant: normal;
font-weight: normal;
letter-spacing: normal;
line-height: normal; orphans:
auto; text-align: start;
text-indent: 0px; text-transform:
none; white-space: normal; widows:
auto; word-spacing: 0px;
-webkit-text-stroke-width: 0px;
background-color: rgb(255, 255,
255); float: none; display: inline
!important;" class="">_______________________________________________</span><br
style="font-family: Helvetica;
font-size: 12px; font-style:
normal; font-variant: normal;
font-weight: normal;
letter-spacing: normal;
line-height: normal; orphans:
auto; text-align: start;
text-indent: 0px; text-transform:
none; white-space: normal; widows:
auto; word-spacing: 0px;
-webkit-text-stroke-width: 0px;
background-color: rgb(255, 255,
255);" class="">
<span style="font-family: Helvetica;
font-size: 12px; font-style:
normal; font-variant: normal;
font-weight: normal;
letter-spacing: normal;
line-height: normal; orphans:
auto; text-align: start;
text-indent: 0px; text-transform:
none; white-space: normal; widows:
auto; word-spacing: 0px;
-webkit-text-stroke-width: 0px;
background-color: rgb(255, 255,
255); float: none; display: inline
!important;" class="">erlang-questions
mailing list</span><br
style="font-family: Helvetica;
font-size: 12px; font-style:
normal; font-variant: normal;
font-weight: normal;
letter-spacing: normal;
line-height: normal; orphans:
auto; text-align: start;
text-indent: 0px; text-transform:
none; white-space: normal; widows:
auto; word-spacing: 0px;
-webkit-text-stroke-width: 0px;
background-color: rgb(255, 255,
255);" class="">
<a moz-do-not-send="true"
href="mailto:erlang-questions@erlang.org"
style="font-family: Helvetica;
font-size: 12px; font-style:
normal; font-variant: normal;
font-weight: normal;
letter-spacing: normal;
line-height: normal; orphans:
auto; text-align: start;
text-indent: 0px; text-transform:
none; white-space: normal; widows:
auto; word-spacing: 0px;
-webkit-text-stroke-width: 0px;
background-color: rgb(255, 255,
255);" class="">erlang-questions@erlang.org</a><br
style="font-family: Helvetica;
font-size: 12px; font-style:
normal; font-variant: normal;
font-weight: normal;
letter-spacing: normal;
line-height: normal; orphans:
auto; text-align: start;
text-indent: 0px; text-transform:
none; white-space: normal; widows:
auto; word-spacing: 0px;
-webkit-text-stroke-width: 0px;
background-color: rgb(255, 255,
255);" class="">
<a moz-do-not-send="true"
href="http://erlang.org/mailman/listinfo/erlang-questions"
style="font-family: Helvetica;
font-size: 12px; font-style:
normal; font-variant: normal;
font-weight: normal;
letter-spacing: normal;
line-height: normal; orphans:
auto; text-align: start;
text-indent: 0px; text-transform:
none; white-space: normal; widows:
auto; word-spacing: 0px;
-webkit-text-stroke-width: 0px;
background-color: rgb(255, 255,
255);" class="">http://erlang.org/mailman/listinfo/erlang-questions</a><br
style="font-family: Helvetica;
font-size: 12px; font-style:
normal; font-variant: normal;
font-weight: normal;
letter-spacing: normal;
line-height: normal; orphans:
auto; text-align: start;
text-indent: 0px; text-transform:
none; white-space: normal; widows:
auto; word-spacing: 0px;
-webkit-text-stroke-width: 0px;
background-color: rgb(255, 255,
255);" class="">
</div>
</blockquote>
</div>
<br class="">
</div>
</div>
</div>
</blockquote>
</div>
<br class="">
</div>
</blockquote>
<br class="">
</div>
_______________________________________________<br
class="">
erlang-questions mailing list<br class="">
<a moz-do-not-send="true"
href="mailto:erlang-questions@erlang.org" class="">erlang-questions@erlang.org</a><br
class="">
<a class="moz-txt-link-freetext" href="http://erlang.org/mailman/listinfo/erlang-questions">http://erlang.org/mailman/listinfo/erlang-questions</a><br
class="">
</div>
</blockquote>
</div>
<br class="">
</div>
</blockquote>
<br>
Thanks all, this problem is also solved.<br>
<br>
Roelof<br>
<br>
</body>
</html>