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0

1

I am working on QGIS. It is a line feature.

Say we have three consecutive links. If the first and the last link has the same attribute value and the centre differs, I need to select those.

Is there any query for that in QGIS?

In the below picture, there are three consecutive links. Of that, I need to select the centre linke named "B", which differs from the other two. Can I have a query for comparing the attribution of the consecutive links and highlights the name which is odd (say "B" in this case) ?

qgis query

share|improve this question

edited 4 mins ago

PolyGeo♦

53.5k1780240

asked 5 hours ago

FelixFelix

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New contributor

Felix is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

• 
  
  
  

  
  2
  

  
  
  
  
  
  

  
  
  Your question is a bit unclear. Could you add a screenshot showing the line(s) and the attribute table?
  
  – BERA
  4 hours ago
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  And explain a bit more the logic of the selection you aim ...
  
  – snaileater
  4 hours ago
  

  
  
  
  


• 
  
  
  

  
  2
  

  
  
  
  
  
  

  
  
  Welcome to GIS.se! Please click 'edit' and update your question with a clear example of your data.
  
  – Simbamangu
  4 hours ago
  

  
  
  
  

add a comment | 

0

1

I am working on QGIS. It is a line feature.

Say we have three consecutive links. If the first and the last link has the same attribute value and the centre differs, I need to select those.

Is there any query for that in QGIS?

In the below picture, there are three consecutive links. Of that, I need to select the centre linke named "B", which differs from the other two. Can I have a query for comparing the attribution of the consecutive links and highlights the name which is odd (say "B" in this case) ?

qgis query

share|improve this question

edited 4 mins ago

PolyGeo♦

53.5k1780240

asked 5 hours ago

FelixFelix

142

New contributor

Felix is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

• 
  
  
  

  
  2
  

  
  
  
  
  
  

  
  
  Your question is a bit unclear. Could you add a screenshot showing the line(s) and the attribute table?
  
  – BERA
  4 hours ago
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  And explain a bit more the logic of the selection you aim ...
  
  – snaileater
  4 hours ago
  

  
  
  
  


• 
  
  
  

  
  2
  

  
  
  
  
  
  

  
  
  Welcome to GIS.se! Please click 'edit' and update your question with a clear example of your data.
  
  – Simbamangu
  4 hours ago
  

  
  
  
  

add a comment | 

I am working on QGIS. It is a line feature.

Say we have three consecutive links. If the first and the last link has the same attribute value and the centre differs, I need to select those.

Is there any query for that in QGIS?

In the below picture, there are three consecutive links. Of that, I need to select the centre linke named "B", which differs from the other two. Can I have a query for comparing the attribution of the consecutive links and highlights the name which is odd (say "B" in this case) ?

qgis query

share|improve this question

edited 4 mins ago

PolyGeo♦

53.5k1780240

asked 5 hours ago

FelixFelix

142

New contributor

Felix is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

share|improve this question

edited 4 mins ago

PolyGeo♦

53.5k1780240

asked 5 hours ago

FelixFelix

142

New contributor

Felix is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

share|improve this question

edited 4 mins ago

PolyGeo♦

53.5k1780240

asked 5 hours ago

FelixFelix

142

New contributor

Felix is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

edited 4 mins ago

PolyGeo♦

53.5k1780240

edited 4 mins ago

PolyGeo♦

53.5k1780240

asked 5 hours ago

FelixFelix

142

New contributor

Felix is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

asked 5 hours ago

FelixFelix

142

1 Answer
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Assuming that you have three fields in your attribute table (let's call them field1, field2, and field3 for this) and you want to select features where field1 and field3 are the same but field2 is different, then you can use this expression to select them:

"field1" = "field3" AND "field1" <> "field2"

share|improve this answer

edited 6 mins ago

PolyGeo♦

53.5k1780240

answered 3 hours ago

TeddyTedTedTeddyTedTed

69319

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0

Assuming that you have three fields in your attribute table (let's call them field1, field2, and field3 for this) and you want to select features where field1 and field3 are the same but field2 is different, then you can use this expression to select them:

"field1" = "field3" AND "field1" <> "field2"

share|improve this answer

edited 6 mins ago

PolyGeo♦

53.5k1780240

answered 3 hours ago

TeddyTedTedTeddyTedTed

69319

add a comment | 

0

Assuming that you have three fields in your attribute table (let's call them field1, field2, and field3 for this) and you want to select features where field1 and field3 are the same but field2 is different, then you can use this expression to select them:

"field1" = "field3" AND "field1" <> "field2"

share|improve this answer

edited 6 mins ago

PolyGeo♦

53.5k1780240

answered 3 hours ago

TeddyTedTedTeddyTedTed

69319

add a comment | 

Assuming that you have three fields in your attribute table (let's call them field1, field2, and field3 for this) and you want to select features where field1 and field3 are the same but field2 is different, then you can use this expression to select them:

"field1" = "field3" AND "field1" <> "field2"

share|improve this answer

edited 6 mins ago

PolyGeo♦

53.5k1780240

answered 3 hours ago

TeddyTedTedTeddyTedTed

69319

"field1" = "field3" AND "field1" <> "field2"

share|improve this answer

edited 6 mins ago

PolyGeo♦

53.5k1780240

answered 3 hours ago

TeddyTedTedTeddyTedTed

69319

edited 6 mins ago

PolyGeo♦

53.5k1780240

edited 6 mins ago

PolyGeo♦

53.5k1780240

answered 3 hours ago

TeddyTedTedTeddyTedTed

69319

answered 3 hours ago

TeddyTedTedTeddyTedTed

69319