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<p>If you made changes to the tables and saved them then there is
for me no obvious way to recover the information to its previous
state.</p>
<p>Unless you had a backup of your original data which is always a
good thing to have.</p>
<p>Good luck.<br>
</p>
<p><br>
</p>
<div class="moz-cite-prefix">On 2020-11-15 10:12, Vladut Constandoiu
wrote:<br>
</div>
<blockquote type="cite"
cite="mid:CANRCGAcSsLdPT_b6=pwG+oeVptVJQ==VaoPZfudZhPiAj1BeRw@mail.gmail.com">
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<div dir="ltr">Good morning,
<div><br>
</div>
<div>My name is Vladut Constandoiu, I'm a university student
from Trento, Italy and I'm using QGis for my master thesis.</div>
<div>Yesterday I had a very unpleasant experience with QGis. I
have a shapefile that contains all of the different areas of
the river's hydrological basin on which I'm doing my project;
every element has two attributes: type (TIPO) and area (SUP).
Somehow I managed to erase those attributes from the attribute
table and could not do undo (ctrl+z or anything else) since
the auto-save plug-in activated exatly 2 seconds after my
mistake and saved the changes. The shapefile contains about
6900 elements, and they were all sorted by use, while now they
are just areas without any information.</div>
<div>Is there any way to recover a previous version of that
shapefile so that I don't have to spend uncountable hours
putting all the attributes back in?</div>
<div>Here are three pictures of my work, previously and after
the loss of information.</div>
<div><br>
</div>
<div>Before data loss:</div>
<div>
<div><img
src="https://mail.google.com/mail/u/1?ui=2&ik=72f16071a9&attid=0.1.0.1&permmsgid=msg-f:1683416367690043952&th=175cb2446d3e5230&view=fimg&sz=s0-l75-ft&attbid=ANGjdJ-5IbbhzyeD8iz9qPWCZoBzR2JhWv5gJjiBE_1aGUBFmUsAb8dRsZ_9J4IN0ZaTvdBOpqNDVB3r5PveOOMWic7-4rA9-MbFZv_O86cRbBWPAx_AXGFy77zh5CI&disp=emb&realattid=ii_khivyn6z0"
alt="image.png" class="gmail-CToWUd gmail-a6T"
tabindex="0" style="cursor: pointer; outline: 0px;"
moz-do-not-send="true" width="542" height="358"><br>
</div>
</div>
<div><br>
</div>
<div>After data loss + legend of types of area:</div>
<div>
<div><img
src="https://mail.google.com/mail/u/1?ui=2&ik=72f16071a9&attid=0.1.0.2&permmsgid=msg-f:1683416367690043952&th=175cb2446d3e5230&view=fimg&sz=s0-l75-ft&attbid=ANGjdJ8UnzpwabzMsqn1VnRr-MBjmGWDlDuDJgXXShQewBlDiavpY34kbBSZ8LjRhjIa7TpBVJqosRrz3-6Wppa80oqJ2b4hwrCZI9-RD-T7RZw1AY2UxmoI8ojKuv8&disp=emb&realattid=ii_khiw0zn31"
alt="image.png" class="gmail-CToWUd gmail-a6T"
tabindex="0" style="cursor: pointer; outline: 0px;"
moz-do-not-send="true" width="542" height="274"><br>
</div>
</div>
<div><br>
</div>
<div>Attribute panel:</div>
<div>
<div><img
src="https://mail.google.com/mail/u/1?ui=2&ik=72f16071a9&attid=0.1.0.3&permmsgid=msg-f:1683416367690043952&th=175cb2446d3e5230&view=fimg&sz=s0-l75-ft&attbid=ANGjdJ_pUXpngqkDBLS-31fOVAEInBwy3gm5V-E6rXFV-TDXy7OJbXKW6nKCgP1tKiBGPTp5BnZXX3QHomnpec2mlb_OrLfTeG7Enjl71kSCVtkranZIEnS2uiO1s1c&disp=emb&realattid=ii_khiw2bnz2"
alt="image.png" class="gmail-CToWUd gmail-a6T"
tabindex="0" style="cursor: pointer; outline: 0px;"
moz-do-not-send="true" width="542" height="340"><br>
</div>
</div>
<div><br>
</div>
<div>I would be enormously grateful to anyone who could help me
find a solution for this mess.</div>
<div><br>
</div>
<div>Thank you very much in advance and have a nice day.</div>
<div>Sincerely,</div>
<div>Vladut Constandoiu </div>
</div>
<br>
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