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## 14.6. Update

| Important
To update an index entry, the old one must be removed and a new one added. For details on removing index entries, see Section 14.5, “Remove”.

Remember that a node or relationship can be associated with any number of key-value pairs in an index. This means that you can index a node or relationship with many key-value pairs that have the same key. In the case where a property value changes and you’d like to update the index, it’s not enough to just index the new value — you’ll have to remove the old value as well.

Here’s a code example that demonstrates how it’s done:

    // create a node with a property
    // so we have something to update later on
    Node fishburn = graphDb.createNode();
    fishburn.setProperty( "name", "Fishburn" );
    // index it
    actors.add( fishburn, "name", fishburn.getProperty( "name" ) );
    // update the index entry
    // when the property value changes
    actors.remove( fishburn, "name", fishburn.getProperty( "name" ) );
    fishburn.setProperty( "name", "Laurence Fishburn" );
    actors.add( fishburn, "name", fishburn.getProperty( "name" ) );

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