Subvi no-show a table

Similar Questions

• 3 clues on 3 different columns, but explain plan shows full table scan for select queries

  I have a table - used and have index - functional ind1 (upper (f_name)), index - (emp_id) ind2 ind3 (upper (l_name) functional on 3 columns diffferent - what, emp_id, l_name respectively.) Now when I check explain plans for sub queries, they all have two shows complete table for the employee of the table scan. FYI - employee table is non-parittioned.

  Can someone tell me why 3 indices are not used here?

  (1) select emp_id, upper (f_name), upper (l_name) of the employee

  (2) select upper (f_name), mp_id, upper (l_name) of the employee

  where upper (f_name) = upper (f_name)

  and emp_id = emp_id

  and upper (l_name) = upper (l_name)

  If I can push oracle (version 11) to use these indexes somewho - maybe using tips? Any help is appreciated.

  
  Observations:
  
  SQL> desc emp1;
   Name                                      Null?    Type
   ----------------------------------------- -------- -----------------
   EMPID                                      NOT NULL NUMBER
   F_NAME                                    NOT NULL VARCHAR2(3)
   L_NAME                                    NOT NULL VARCHAR2(3)
   SALARY                                    NUMBER
   JOB_ROLE                                 VARCHAR2(5)
   DEPTID                                     NUMBER
  
  create index idx2 on emp1(empid);
  create index idx1 on emp1(upper(f_name) );
  create index idx3 on emp1(f_name,empid, l_name);
  exec dbms_stats.gather_table_stats(user,'EMP1', cascade=>true);
  
  8 rows selected.
  
  SQL> explain plan for
    2  select /*+ index_join(e idx1 idx2 idx3)*/   upper(l_name),empid, upper(f_name) from emp1 e;
  
  Explained.
  
  SQL> select * from table(dbms_xplan.display);
  
  PLAN_TABLE_OUTPUT
  --------------------------------------------------------------------------------
  Plan hash value: 3449967945
  
  -------------------------------------------------------------------------
  | Id  | Operation        | Name | Rows  | Bytes | Cost (%CPU)| Time     |
  -------------------------------------------------------------------------
  |   0 | SELECT STATEMENT |      | 20000 |   175K|    14   (0)| 00:00:01 |
  |   1 |  INDEX FULL SCAN | IDX3 | 20000 |   175K|    14   (0)| 00:00:01 |
  -------------------------------------------------------------------------
  
  8 rows selected.
  
  SQL> explain plan for
    2  select    upper(f_name),empid,upper(l_name) from emp1 e;
  
  Explained.
  
  SQL> select * from table(dbms_xplan.display);
  
  PLAN_TABLE_OUTPUT
  --------------------------------------------------------------------------------
  Plan hash value: 3449967945
  
  -------------------------------------------------------------------------
  | Id  | Operation        | Name | Rows  | Bytes | Cost (%CPU)| Time     |
  -------------------------------------------------------------------------
  |   0 | SELECT STATEMENT |      | 20000 |   175K|    14   (0)| 00:00:01 |
  |   1 |  INDEX FULL SCAN | IDX3 | 20000 |   175K|    14   (0)| 00:00:01 |
  -------------------------------------------------------------------------
  
  8 rows selected.
  
  SQL> explain plan for
    2  select /*+ index_ffs(e idx3)*/   upper(l_name),empid, upper(f_name) from emp1 e;
  
  Explained.
  
  SQL> select * from table(dbms_xplan.display);
  
  PLAN_TABLE_OUTPUT
  --------------------------------------------------------------------------------
  Plan hash value: 2496145112
  
  -----------------------------------------------------------------------------
  | Id  | Operation            | Name | Rows  | Bytes | Cost (%CPU)| Time     |
  -----------------------------------------------------------------------------
  |   0 | SELECT STATEMENT     |      | 20000 |   175K|    14   (0)| 00:00:01 |
  |   1 |  INDEX FAST FULL SCAN| IDX3 | 20000 |   175K|    14   (0)| 00:00:01 |
  -----------------------------------------------------------------------------
  
  8 rows selected.
  
  SQL> explain plan for
    2  select /*+ index(e idx3)*/   upper(l_name),empid, upper(f_name) from emp1 e;
  
  Explained.
  
  SQL> select * from table(dbms_xplan.display);
  
  PLAN_TABLE_OUTPUT
  --------------------------------------------------------------------------------
  Plan hash value: 3449967945
  
  -------------------------------------------------------------------------
  | Id  | Operation        | Name | Rows  | Bytes | Cost (%CPU)| Time     |
  -------------------------------------------------------------------------
  |   0 | SELECT STATEMENT |      | 20000 |   175K|    14   (0)| 00:00:01 |
  |   1 |  INDEX FULL SCAN | IDX3 | 20000 |   175K|    14   (0)| 00:00:01 |
  -------------------------------------------------------------------------
  
  8 rows selected.
  
  SQL> explain plan for
    2  select    upper(f_name),empid,upper(l_name) from emp1 e;
  
  Explained.
  
  SQL> select * from table(dbms_xplan.display);
  
  PLAN_TABLE_OUTPUT
  --------------------------------------------------------------------------------
  Plan hash value: 3449967945
  
  -------------------------------------------------------------------------
  | Id  | Operation        | Name | Rows  | Bytes | Cost (%CPU)| Time     |
  -------------------------------------------------------------------------
  |   0 | SELECT STATEMENT |      | 20000 |   175K|    14   (0)| 00:00:01 |
  |   1 |  INDEX FULL SCAN | IDX3 | 20000 |   175K|    14   (0)| 00:00:01 |
  -------------------------------------------------------------------------
  
  8 rows selected.
  
  SQL> drop index idx3;
  
  Index dropped.
  
  SQL> explain plan for
    2     select   upper(l_name),empid, upper(f_name) from emp1 e;
  
  Explained.
  
  SQL> select * from table(dbms_xplan.display);
  
  PLAN_TABLE_OUTPUT
  --------------------------------------------------------------------------------
  Plan hash value: 3330885630
  
  --------------------------------------------------------------------------
  | Id  | Operation         | Name | Rows  | Bytes | Cost (%CPU)| Time     |
  --------------------------------------------------------------------------
  |   0 | SELECT STATEMENT  |      | 20000 |   175K|    18   (0)| 00:00:01 |
  |   1 |  TABLE ACCESS FULL| EMP1 | 20000 |   175K|    18   (0)| 00:00:01 |
  --------------------------------------------------------------------------
  
  8 rows selected.
  
  SQL> create index idx3 on emp1(f_name,empid, l_name );
  
  Index created.
  
  SQL>  explain plan for
    2     select   upper(l_name),empid, upper(f_name) from emp1 e;
  
  Explained.
  
  SQL> select * from table(dbms_xplan.display);
  
  PLAN_TABLE_OUTPUT
  --------------------------------------------------------------------------------
  Plan hash value: 3449967945
  
  -------------------------------------------------------------------------
  | Id  | Operation        | Name | Rows  | Bytes | Cost (%CPU)| Time     |
  -------------------------------------------------------------------------
  |   0 | SELECT STATEMENT |      | 20000 |   175K|    14   (0)| 00:00:01 |
  |   1 |  INDEX FULL SCAN | IDX3 | 20000 |   175K|    14   (0)| 00:00:01 |
  

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  Here's the situation:
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  I find that if I create a different account with a normal password and connect in this way, the tables appear effectively. If I can just modify app.config for use authentication integrated, once the template is created, with the help of it works fine. But I have to change this back to update the model.
  
  Looks like a bug to me. Anyone have any ideas?

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  Hi friends,

  I have a table with values based on the search criteria entered. One of the cells has now the name of the employee in the table. I want this shown as a link and when the user clicks on the name, it should take me to another page where I display the employee details. How can we show the employee name cell as the link. Can anyone help

  Thank you

  Hi user,

  check this.

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  I know how to show my picture in the window EXIT.

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  I have a Web page with css dotted border style table. He appears in IE, but there is only a line around the table in FF. Is there a way to make it appear? Thank you very much.

  {table. MyTable}
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  Hello

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  H

  

  If you your not reentrant VI, you need to change the input reference VI open to match options. You have specified '8' and as explained in the help, it will generate this error if the Subvi is not reentrant.

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