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Vector map attribute transfer between connected tables - Revision history
2024-03-29T14:06:58Z
Revision history for this page on the wiki
MediaWiki 1.41.0
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⚠️Madi at 09:50, 23 April 2015
2015-04-23T09:50:00Z
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 09:50, 23 April 2015</td>
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⚠️Madi
https://grasswiki.osgeo.org/w/index.php?title=Vector_map_attribute_transfer_between_connected_tables&diff=14546&oldid=prev
Neteler at 00:37, 7 December 2011
2011-12-07T00:37:12Z
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Neteler
https://grasswiki.osgeo.org/w/index.php?title=Vector_map_attribute_transfer_between_connected_tables&diff=7907&oldid=prev
Neteler: /* See also */
2008-12-02T15:42:14Z
<p><span dir="auto"><span class="autocomment">See also</span></span></p>
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 15:42, 2 December 2008</td>
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<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>* {{cmd|v.db.addcol}}</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>* {{cmd|v.db.addcol}}</div></td></tr>
<tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">* {{cmd|v.category}}</ins></div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>* {{cmd|v.to.db}}</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>* {{cmd|v.to.db}}</div></td></tr>
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Neteler
https://grasswiki.osgeo.org/w/index.php?title=Vector_map_attribute_transfer_between_connected_tables&diff=7906&oldid=prev
Neteler at 15:24, 2 December 2008
2008-12-02T15:24:48Z
<p></p>
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 15:24, 2 December 2008</td>
</tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l5">Line 5:</td>
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<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> # add new column on layer 2 (replace SIZE with the desired length):</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> # add new column on layer 2 (replace SIZE with the desired length):</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> v.db.addcol regions layer=2 col='name varchar(SIZE)'</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> v.db.addcol regions layer=2 col='name varchar(SIZE)'</div></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div> # add <del style="font-weight: bold; text-decoration: none;">ctagetories</del></div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div> # add <ins style="font-weight: bold; text-decoration: none;">cagetory numbers into geometry and new table for layer 2:</ins></div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> v.category regions layer=2 option=add</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> v.category regions layer=2 option=add</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> # get over the relevant attributes:</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> # get over the relevant attributes:</div></td></tr>
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Neteler
https://grasswiki.osgeo.org/w/index.php?title=Vector_map_attribute_transfer_between_connected_tables&diff=7905&oldid=prev
Neteler: an attempt to fix
2008-12-02T15:19:12Z
<p>an attempt to fix</p>
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 15:19, 2 December 2008</td>
</tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l5">Line 5:</td>
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<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> # add new column on layer 2 (replace SIZE with the desired length):</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> # add new column on layer 2 (replace SIZE with the desired length):</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> v.db.addcol regions layer=2 col='name varchar(SIZE)'</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> v.db.addcol regions layer=2 col='name varchar(SIZE)'</div></td></tr>
<tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;"> # add ctagetories</ins></div></td></tr>
<tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;"> v.category regions layer=2 option=add</ins></div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> # get over the relevant attributes:</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> # get over the relevant attributes:</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> v.to.db regions layer=2 option=query col=name qlayer=1 qcolumn=name</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> v.to.db regions layer=2 option=query col=name qlayer=1 qcolumn=name</div></td></tr>
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Neteler
https://grasswiki.osgeo.org/w/index.php?title=Vector_map_attribute_transfer_between_connected_tables&diff=7885&oldid=prev
Neteler: new
2008-11-27T10:37:11Z
<p>new</p>
<p><b>New page</b></p><div>''Q: I have a vector layer FOO which is linked to two tables in layers 1 and 2. The categories for each vector element are different in layer 1 and (e.g., a certain area may have the cat value "51" in layer 1 and a cat value of "42" in layer 2). Let's assume that layer 1 has a VARCHAR column containing the names of the region (e.g. database_layer_1: 51,"Wolfenstein", database_layer_2: 42 ). If a new VARCHAR column is added to layer 2 by {{cmd|v.db.addcol}}, how can the names from layer 1 be copied into it?''<br />
<br />
'''A: Try this (assuming that the varchar attribute in layer 1 is called 'name'):'''<br />
<br />
# add new column on layer 2 (replace SIZE with the desired length):<br />
v.db.addcol regions layer=2 col='name varchar(SIZE)'<br />
# get over the relevant attributes:<br />
v.to.db regions layer=2 option=query col=name qlayer=1 qcolumn=name<br />
<br />
== See also ==<br />
<br />
* {{cmd|v.db.addcol}}<br />
* {{cmd|v.to.db}}<br />
<br />
[[Category: FAQ]]</div>
Neteler