How does cursor.rowfactory (cx_oracle) work in returning each row in dictionary format?










1














How does that work? I have looked up the documentation. It said the cursor.rowfactory is an attribute letting user define how the format of the row is retrieved. However I don't see any examples to how to define it. Then I found the answer above. I totally lost track and had no idea what that is doing. Can anyone explain what is that doing? What is the attribute .rowfactory? And how makeDictFactory works? What is createRow doing and what args contains?
Is there some documents I can look up?



def makeDictFactory(cursor):
columnNames = [d[0] for d in cursor.description]
def createRow(*args):
return dict(zip(columnNames, args))
return createRow

curs.rowfactory = makeDictFactory(curs)
curs.fetchone()


Code from here










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    1














    How does that work? I have looked up the documentation. It said the cursor.rowfactory is an attribute letting user define how the format of the row is retrieved. However I don't see any examples to how to define it. Then I found the answer above. I totally lost track and had no idea what that is doing. Can anyone explain what is that doing? What is the attribute .rowfactory? And how makeDictFactory works? What is createRow doing and what args contains?
    Is there some documents I can look up?



    def makeDictFactory(cursor):
    columnNames = [d[0] for d in cursor.description]
    def createRow(*args):
    return dict(zip(columnNames, args))
    return createRow

    curs.rowfactory = makeDictFactory(curs)
    curs.fetchone()


    Code from here










    share|improve this question


























      1












      1








      1


      0





      How does that work? I have looked up the documentation. It said the cursor.rowfactory is an attribute letting user define how the format of the row is retrieved. However I don't see any examples to how to define it. Then I found the answer above. I totally lost track and had no idea what that is doing. Can anyone explain what is that doing? What is the attribute .rowfactory? And how makeDictFactory works? What is createRow doing and what args contains?
      Is there some documents I can look up?



      def makeDictFactory(cursor):
      columnNames = [d[0] for d in cursor.description]
      def createRow(*args):
      return dict(zip(columnNames, args))
      return createRow

      curs.rowfactory = makeDictFactory(curs)
      curs.fetchone()


      Code from here










      share|improve this question















      How does that work? I have looked up the documentation. It said the cursor.rowfactory is an attribute letting user define how the format of the row is retrieved. However I don't see any examples to how to define it. Then I found the answer above. I totally lost track and had no idea what that is doing. Can anyone explain what is that doing? What is the attribute .rowfactory? And how makeDictFactory works? What is createRow doing and what args contains?
      Is there some documents I can look up?



      def makeDictFactory(cursor):
      columnNames = [d[0] for d in cursor.description]
      def createRow(*args):
      return dict(zip(columnNames, args))
      return createRow

      curs.rowfactory = makeDictFactory(curs)
      curs.fetchone()


      Code from here







      python sql oracle cx-oracle






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      edited Nov 11 at 16:18









      APC

      118k15116229




      118k15116229










      asked Nov 11 at 14:05









      Programming idiot

      61




      61






















          1 Answer
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          Look at the example https://github.com/oracle/python-cx_Oracle/blob/master/samples/GenericRowFactory.py



          Also check out the cx_Oracle tutorial https://github.com/oracle/python-cx_Oracle/tree/master/samples/tutorial



          Also see presentations on cx_Oracle like https://static.rainfocus.com/oracle/oow18/sess/1523651275582001fu8I/PF/TIP4076%20-%20Python%20and%20Oracle%20Database%20on%20the%20Table_1540587368635001aNOw.pdf






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            1 Answer
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            Look at the example https://github.com/oracle/python-cx_Oracle/blob/master/samples/GenericRowFactory.py



            Also check out the cx_Oracle tutorial https://github.com/oracle/python-cx_Oracle/tree/master/samples/tutorial



            Also see presentations on cx_Oracle like https://static.rainfocus.com/oracle/oow18/sess/1523651275582001fu8I/PF/TIP4076%20-%20Python%20and%20Oracle%20Database%20on%20the%20Table_1540587368635001aNOw.pdf






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              0














              Look at the example https://github.com/oracle/python-cx_Oracle/blob/master/samples/GenericRowFactory.py



              Also check out the cx_Oracle tutorial https://github.com/oracle/python-cx_Oracle/tree/master/samples/tutorial



              Also see presentations on cx_Oracle like https://static.rainfocus.com/oracle/oow18/sess/1523651275582001fu8I/PF/TIP4076%20-%20Python%20and%20Oracle%20Database%20on%20the%20Table_1540587368635001aNOw.pdf






              share|improve this answer























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                Look at the example https://github.com/oracle/python-cx_Oracle/blob/master/samples/GenericRowFactory.py



                Also check out the cx_Oracle tutorial https://github.com/oracle/python-cx_Oracle/tree/master/samples/tutorial



                Also see presentations on cx_Oracle like https://static.rainfocus.com/oracle/oow18/sess/1523651275582001fu8I/PF/TIP4076%20-%20Python%20and%20Oracle%20Database%20on%20the%20Table_1540587368635001aNOw.pdf






                share|improve this answer












                Look at the example https://github.com/oracle/python-cx_Oracle/blob/master/samples/GenericRowFactory.py



                Also check out the cx_Oracle tutorial https://github.com/oracle/python-cx_Oracle/tree/master/samples/tutorial



                Also see presentations on cx_Oracle like https://static.rainfocus.com/oracle/oow18/sess/1523651275582001fu8I/PF/TIP4076%20-%20Python%20and%20Oracle%20Database%20on%20the%20Table_1540587368635001aNOw.pdf







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                answered Nov 12 at 0:29









                Christopher Jones

                1,8611614




                1,8611614



























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