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v4.3
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    中文EN
    v4.3

      IS NULL

      • Expression: <value> IS NULL
      • Operand: Any

      Sample graph: (to be used for the following examples)

      Run below UQLs one by one in an empty graphset to create graph data:
      create().node_property(@default, "name").node_property(@default, "try1", int32).node_property(@default, "try2", int32).node_property(@default, "try3", int32)
      insert().into(@default).nodes([{name:"Jason", try1:84}, {name:"Alice", try1:55, try2:79}, {name:"Lina"}, {name:"Eric", try1:39, try2:46, try3:61}, {name:"Pepe", try1:89}])
      

      Comman Usage

      Example: Return the name of student who didn't take the 2nd test (the 1st re-test)

      find().nodes({try2 is null }) as n
      return n.name
      

      Jason
      Lina
      Pepe
      
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