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// This script loops though the list of collection names in a MongoDB and runs the compact operation on them | |
// Simply paste this into the Mongo shell | |
use testDbName; | |
db.getCollectionNames().forEach(function (collectionName) { | |
print('Compacting: ' + collectionName); | |
db.runCommand({ compact: collectionName }); | |
}); |
How to delete duplicate nodes and their relationships in neo4j with cypher based on a property of that node?
The problem is easy to understand. We have 'duplicate' nodes in our database based on the 'id' field on the node properties.
Well this sounds easy enough, until you have to actually do it.
My first attempt was to try and figure out which nodes are actualy duplicate (based on a property on the node). This seems to be pretty straightforward.
Cypher: