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arangodb/Documentation/Examples/documentsCollectionRemoveCo...

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arangosh&gt; a1 = db.example.insert({ <span class="hljs-attr">a</span> : <span class="hljs-number">1</span> });
{
<span class="hljs-string">"_id"</span> : <span class="hljs-string">"example/17645"</span>,
<span class="hljs-string">"_key"</span> : <span class="hljs-string">"17645"</span>,
<span class="hljs-string">"_rev"</span> : <span class="hljs-string">"_WnWW9wO--_"</span>
}
arangosh&gt; a2 = db._replace(a1, { <span class="hljs-attr">a</span> : <span class="hljs-number">2</span> });
{
<span class="hljs-string">"_id"</span> : <span class="hljs-string">"example/17645"</span>,
<span class="hljs-string">"_key"</span> : <span class="hljs-string">"17645"</span>,
<span class="hljs-string">"_rev"</span> : <span class="hljs-string">"_WnWW9wW--_"</span>,
<span class="hljs-string">"_oldRev"</span> : <span class="hljs-string">"_WnWW9wO--_"</span>
}
arangosh&gt; db._remove(a1);
[ArangoError <span class="hljs-number">1200</span>: precondition failed]
arangosh&gt; db._remove(a1, {<span class="hljs-attr">overwrite</span>: <span class="hljs-literal">true</span>} );
{
<span class="hljs-string">"_id"</span> : <span class="hljs-string">"example/17645"</span>,
<span class="hljs-string">"_key"</span> : <span class="hljs-string">"17645"</span>,
<span class="hljs-string">"_rev"</span> : <span class="hljs-string">"_WnWW9wW--_"</span>
}
arangosh&gt; db._document(a1);
[ArangoError <span class="hljs-number">1202</span>: <span class="hljs-built_in">document</span> not found]