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1

I have a vegetation vector layer with vegetation type mapping. I want to join this vector layer with a CSV-file (no geometry) which includes threatened species occurrence.

The vector layer has a "vegetation class" field which provides a single vegetation classification for each polygon. The CSV-file has a species list with a "Class" field which indicates all the vegetation classes (comma separated) the species is known to occur.

When I create a join between the vector layer and the CSV-table data, there doesn't appear to be anywhere for me to indicate the join field contains multiple values and I, therefore, receive NULL results when inspecting the join.

How can I indicate that the value from the target field ("vegetation class"), which is a single value, needs to search each row in the join field ("Class") which contains multiple comma separated values?

qgis attribute-joins

share|improve this question

edited 9 mins ago

Taras

2,3733727

asked 2 hours ago

DarrenDarren

142

add a comment | 

1

I have a vegetation vector layer with vegetation type mapping. I want to join this vector layer with a CSV-file (no geometry) which includes threatened species occurrence.

The vector layer has a "vegetation class" field which provides a single vegetation classification for each polygon. The CSV-file has a species list with a "Class" field which indicates all the vegetation classes (comma separated) the species is known to occur.

When I create a join between the vector layer and the CSV-table data, there doesn't appear to be anywhere for me to indicate the join field contains multiple values and I, therefore, receive NULL results when inspecting the join.

How can I indicate that the value from the target field ("vegetation class"), which is a single value, needs to search each row in the join field ("Class") which contains multiple comma separated values?

qgis attribute-joins

share|improve this question

edited 9 mins ago

Taras

2,3733727

asked 2 hours ago

DarrenDarren

142

add a comment | 

I have a vegetation vector layer with vegetation type mapping. I want to join this vector layer with a CSV-file (no geometry) which includes threatened species occurrence.

The vector layer has a "vegetation class" field which provides a single vegetation classification for each polygon. The CSV-file has a species list with a "Class" field which indicates all the vegetation classes (comma separated) the species is known to occur.

When I create a join between the vector layer and the CSV-table data, there doesn't appear to be anywhere for me to indicate the join field contains multiple values and I, therefore, receive NULL results when inspecting the join.

How can I indicate that the value from the target field ("vegetation class"), which is a single value, needs to search each row in the join field ("Class") which contains multiple comma separated values?

qgis attribute-joins

share|improve this question

edited 9 mins ago

Taras

2,3733727

asked 2 hours ago

DarrenDarren

142

share|improve this question

edited 9 mins ago

Taras

2,3733727

asked 2 hours ago

DarrenDarren

142

share|improve this question

edited 9 mins ago

Taras

2,3733727

asked 2 hours ago

DarrenDarren

142

edited 9 mins ago

Taras

2,3733727

edited 9 mins ago

Taras

2,3733727

asked 2 hours ago

DarrenDarren

142

asked 2 hours ago

DarrenDarren

142