thub.io/fabric-chaincode-node/master/api/fabric-shim.ChaincodeStub.html#deleteState__anchor</a>)</p></li>
</ul>
</div></blockquote>
<p>&lt;br&gt; These basic APIs are complemented by query APIs which enable contracts to
retrieve a set of states, rather than an individual state. See interaction
point <strong>(2)</strong>. The set is either defined by a range of key values, using full
or partial keys, or a query according to values in the underlying world state
[database](../ledger/ledger.html#world-state-dat