Oracle view and query question

• keywestfl9

  SSCertifiable

  Points: 5215

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  October 28, 2008 at 10:29 am

  #214631

  i am writing a view to pull data from a table

  field1 field 2 field3 field4

  Data for the above fields looks like

  field1 field2 field3 field4

  test test1 20000 -1

  test2 test4 -1 4000

  test4 test 45 -1 400300

  test5 test59 39929 -1

  i want to retrive only the rows where either field3 or field4 doesnt contain -1

  i tried where (field3 <> -1 or field4 <> -1) and it didnt work

  Pleaset let me know how to do it

• PaulB-TheOneAndOnly

  SSC Guru

  Points: 66772

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  October 29, 2008 at 6:02 am

  #891137

  Either your specs are wrong or your test data is wrong.

  All your rows have -1 value either on field3 or field4 columns so your query would return no rows; by the way, your predicate condition should be AND instead of OR, like:

  SQL>

  SQL> create table test(

  2 field1 varchar2(10),

  3 field2 varchar2(10),

  4 field3 number,

  5 field4 number);

  Table created.

  SQL> insert into test values('test','test1',20000,-1);

  1 row created.

  SQL> insert into test values('test2','test4',-1,4000);

  1 row created.

  SQL> insert into test values('test4','test 45',-1,400300);

  1 row created.

  SQL> insert into test values('test5','test59',39929,-1);

  1 row created.

  SQL> create view view_test

  2 as

  3 select *

  4 from test;

  View created.

  SQL> select * from view_test;

  test test1 20000 -1

  test2 test4 -1 4000

  test4 test 45 -1 400300

  test5 test59 39929 -1

  SQL> select *

  2 from view_test

  3 where (field3 <> -1 and field4 <> -1);

  no rows selected

  SQL>

  _____________________________________
  Pablo (Paul) Berzukov

  Author of Understanding Database Administration available at Amazon and other bookstores.

  Disclaimer: Advice is provided to the best of my knowledge but no implicit or explicit warranties are provided. Since the advisor explicitly encourages testing any and all suggestions on a test non-production environment advisor should not held liable or responsible for any actions taken based on the given advice.