"cross join" meaning in English

{
  "etymology_text": ": cross join < → δείτε τις λέξεις cross και join",
  "forms": [
    {
      "form": "cross join"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Βάσεις δεδομένων (αγγλικά)",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "text": "Suppose, the A table has N rows and B table has M rows, the CROSS JOIN of these two tables will produce a result set that contains NxM rows."
        }
      ],
      "glosses": [
        "χιαστί συνένωση βλ. συνώνυμο Cartesian product (καρτεσιανό γινόμενο)"
      ],
      "id": "el-cross_join-en-noun-Syvhsdho",
      "raw_tags": [
        "βάσεις δεδομένων"
      ]
    }
  ],
  "synonyms": [
    {
      "word": "Cartesian product"
    },
    {
      "word": "cross product"
    }
  ],
  "word": "cross join"
}

{
  "etymology_text": ": cross join < → δείτε τις λέξεις cross και join",
  "forms": [
    {
      "form": "cross join"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "Βάσεις δεδομένων (αγγλικά)"
      ],
      "examples": [
        {
          "text": "Suppose, the A table has N rows and B table has M rows, the CROSS JOIN of these two tables will produce a result set that contains NxM rows."
        }
      ],
      "glosses": [
        "χιαστί συνένωση βλ. συνώνυμο Cartesian product (καρτεσιανό γινόμενο)"
      ],
      "raw_tags": [
        "βάσεις δεδομένων"
      ]
    }
  ],
  "synonyms": [
    {
      "word": "Cartesian product"
    },
    {
      "word": "cross product"
    }
  ],
  "word": "cross join"
}