Add up the values from two numeric columns on RTF model

Hello

I'm trying to add up the values of the numeric column 2.

I tried..? column_1 and column_2? > but it's not as simple as that obviously I get an error when you try to do

I tried..? sum (current - group () / column_1) + sum (current - group () / column_2)? >, but who does no more work that it also returns an error

Any ideas how to add two numeric columns in RTF model?

for 2 + 3

Tags: Oracle Development

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What SYS tables (not seen) contains the value NULL spec /not/ column definition?
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NOTE: This is NOT a trick question - although it seems to be.

Test configuration:
```
BANNER
Oracle Database 11g Enterprise Edition Release 11.2.0.1.0 - Production
PL/SQL Release 11.2.0.1.0 - Production
CORE     11.2.0.1.0     Production
TNS for Linux: Version 11.2.0.1.0 - Production
NLSRTL Version 11.2.0.1.0 - Production
```
Test configuration:
1. a table is created by SCOTT in the SCOTT schema with a NULLABLE column.

2. a primary key constraint is added using only the NULLABLE column

3. Requests for information on USER_TAB_COLS, ALL_TAB_COLS, DBA_TAB_COLS and SYS. COL$ see NOT NULL for the column NULLABLE
as necessary for a primary key constraint. Views derive their data from the column of $ NULL the sys. Table of $ COL
using
```
'DECODE (SIGN (c.null$), -1, 'D', 0, 'Y', 'N'),
```
and the table of $ COL shows a numerical value of '0' before you add the primary key and a value of "1" later.

4. a query on the DDL metadata table shows the specification for column NULLABLE of origin involved.

Question - where this original specification NULLABLE is stored?

This question is based on a question asked by another user in this thread
Columns becoming nullable after a fall of primary key?

I created the following specially for that matter test case
```
-- scott ensures table does not exist
DROP TABLE tbl_test CASCADE CONSTRAINTS;

-- scott creates a table
CREATE TABLE tbl_test ( col_1 NUMBER,
col_2 NUMBER NOT NULL);

-- scott queries to check the the column nullable status
SELECT table_name, column_name, nullable 
FROM user_tab_cols
WHERE table_name = 'TBL_TEST';

-- TABLE_NAME | COLUMN_NAME | NULLABLE
-- TBL_TEST   | COL_1       | Y 
-- TBL_TEST   | COL_2       | N 

-- Scott addes a primary key constraint using only the nullable column
ALTER TABLE tbl_test ADD CONSTRAINT tbl_test_pk PRIMARY KEY(col_1);

-- scott queries to check the the column nullable status
SELECT table_name, column_name, nullable 
FROM user_tab_cols
WHERE table_name = 'TBL_TEST';

TABLE_NAME,COLUMN_NAME,NULLABLE
TBL_TEST,COL_1,N
TBL_TEST,COL_2,N

-- scott queries to get the table DDL
select dbms_metadata.get_ddl('TABLE', 'TBL_TEST', 'SCOTT') FROM DUAL;

DBMS_METADATA.GET_DDL('TABLE','TBL_TEST','SCOTT')

  CREATE TABLE "SCOTT"."TBL_TEST" 
   (     "COL_1" NUMBER,                   <------ where is this NULLABLE spec stored? 
     "COL_2" NUMBER NOT NULL ENABLE, 
      CONSTRAINT "TBL_TEST_PK" PRIMARY KEY ("COL_1")
  USING INDEX PCTFREE 10 INITRANS 2 MAXTRANS 255 COMPUTE STATISTICS NOCOMPRESS LOGGING
  TABLESPACE "USERS"  ENABLE
   ) SEGMENT CREATION DEFERRED 
  PCTFREE 10 PCTUSED 40 INITRANS 1 MAXTRANS 255 NOCOMPRESS LOGGING
  TABLESPACE "USERS" 
```
The DOF shows that Oracle keeps the original spec NULLABLE for the column and uses it to generate the DDL orginal, even if there is a primary key on the table and the system views (and COL$) show the column non NULLABLE.

So where is the original information NULLABLE actually stored?
rp0428 wrote:
What SYS (or tables) store the value of a spec /not/ NULL columns? (It doesn't seem to be COL$)

I think that it becomes a bit messy depending on order of activity:

You can see Col. .null$ is set to a non-zero when the desrcibe command displays the column as not null, but it can happen for two reasons:
(a) user sets the column as not null - in which case you get a line in cdef$ with type # = 7
(b) the user adds a primary key to table - in which case you get a line in cdef$ with type # = 2

If you declare null AND add a primary key, you get two lines - that's why it is possible for Oracle to determine if he should remove the flag not null when you remove the primary key and also allows dbms_metadata show the create statement of table without a NOT NULL even when describe it the watch with a NOT NULL - dbms_metadata can respond to the presence of the type # = 2 and absence of the type # = 7.

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By the way: by a strange coincidence, it seems to me answering the previous post, three days before it was asked: http://jonathanlewis.wordpress.com/2012/04/19/drop-constraint/#comment-46140 (on the doubts, this isn't - it answers a different question on the removal of constraints).

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To access the values from the row outside the ListView ListItem

Hello

I spent two hours browsing the forums and documentation with no chance of finding a solution on how to access the list item data from outside the listview.

Let explain me my code. It is marked with I work and what does not work and its expected behavior.

Should work behavior

Tapping & getting data

The arrayDataModel is filled with 4 rows. Firstly the list item, second item in the list... etc.

Tapping on the order of the day, label with the id of triggeredText displays the value of a threaded list item.
The index of the tapped icon appears in the label with the id of triggerredIndex.

Incrementing Index using ActionItems onBar

By pressing action items 'previous' and 'next', you can increment the index value to the label with the id of triggeredIndex. The order of the index is 0-4, even as total of the items in the list.

How to extract data from the index when the value of triggeredIndex?

Buttons

The buttons at the bottom of the screen... Select 1, select the 2nd, 3rd Select should select indexes 0,1,2 of the list and display the value in triggeredText and triggeredIndex. They do not work.

How did I pull the values when you click the buttons?

import bb.cascades 1.3

TabbedPane {
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    showTabsOnActionBar: false

    Tab {
        id: mainTab
        title: "Test List"
            Page {
                id: mainPage
                titleBar: TitleBar {
                    title: "List Traversal Test"
                }
                actions: [
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                        onTriggered: {
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                            if(currentIndex <= 0){
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                                var newIndex = parseInt(triggeredIndex.text) - 1;

                                // show data from new selected index
                                // ???

                                // triggeredItem.text = XXX // the data
                                // ???

                                // triggeredIndex.text = X // the current index
                                triggeredIndex.text = newIndex;
                            }
                        }
                    },
                    ActionItem {
                        title: "Next"
                        ActionBar.placement: ActionBarPlacement.OnBar
                        onTriggered: {
                            // get current selected index from list=
                            var currentIndex = parseInt(triggeredIndex.text);

                            if(currentIndex == 4){
                                //do nothing already at lastitem
                            }else{
                            // add 1 to index ( ci + 1) ?
                            var newIndex = parseInt(triggeredIndex.text) + 1

                            // show data from new selected index
                            // ???

                            // triggeredItem.text = XXX // the data
                            // ???

                            // triggeredIndex.text = X // the current index
                            triggeredIndex.text = newIndex;
                        }
                        }
                    },
                    ActionItem {
                        title: "Clear"
                        ActionBar.placement: ActionBarPlacement.OnBar
                        onTriggered: {
                            // set current index to 0 (top item in list)
                        }
                    }

                ]
                Container {
                    preferredHeight: maxHeight
                    layout: StackLayout {
                        orientation: LayoutOrientation.TopToBottom
                    }

                    Label{
                        id: triggeredItem      // value of listitem from current index
                        text: "0"
                    }
                    Label{
                        id: triggeredIndex    // current index
                        text: "0"
                        onTextChanged: {
                            // set triggeredItem.text to contents of selected ListItem with same index
                            // STUCK HERE cannot access ListItem.dataModel(indexPath) from here....
                        }

                    }
                    Container{
                        ListView {

                            id: theList
                            objectName: "dalist"
                            dataModel: ArrayDataModel {
                                id: theListModel
                            }
                            listItemComponents: ListItemComponent {
                                StandardListItem {
                                    id: itemRoot
                                    title: ListItemData
                                }

                            }
                            onTriggered: {
                                var si = dataModel.data(indexPath);
                                triggeredItem.text = "LIST ITEM CONTENT: " + si;  //set content when user taps on item
                                triggeredIndex.text = "LIST ITEM INDEX INDEX: " + indexPath;  // set index when user taps
                            }

                            onSelectionChanged: {
                                //console.log(selected);
                            }

                            onCreationCompleted: {

                                //add some data to the listview
                                theListModel.append("First List Item");
                                theListModel.append("Second List Item");
                                theListModel.append("Third List Item");
                                theListModel.append("Fourth List Item");
                            }
                        }

                    }
                    Container{
                        layout: StackLayout {
                            orientation: LayoutOrientation.LeftToRight
                        }
                    Button{
                        text: "Select 1st"
                        onClicked: {
                            theList.clearSelection();
                            theList.select(0);

                        }
                    }
                    Button{
                        text: "Select 2nd"
                        onClicked: {
                            theList.clearSelection();
                            theList.select(1);

                        }
                    }

                    Button{
                        text: "Select 3rd item"
                        onClicked: {

                            //expected behaviour is to show data from Third List Item

                            // triggeredIndex.text = INDEX 3
                            // triggeredText.text = (DATA FROM THIRD LIST ITEM)

                            // THIS IS NOT WORKING ....
                            theList.clearSelection();
                            theList.select(2);
                            console.log(theList.dataModel(3));
                            triggeredItem.text = theListModel.dataModel(3);

                        }
                    }
                }
               }
            }
        }//tab
}

Thank you and have a happy and healthy 2015!

Your help will be greatly appreciated.

I ran and got this:

asset:///main.qml:161: TypeError: Result of expression 'theList.dataModel' [bb::cascades::ArrayDataModel(0x1091a838)] is not a function.

But it works

theListModel.data([3])

But this isn't the solution, you have a more serious problem. You select a value, you trigger. If you add this in onTriggered you select it (and you can see that it changes color when it is selected).

theList.select(indexPath);

If you want to use option to deselect

theList.select(indexPath, !theList.isSelected(indexPath));

And if you want to have that one chose this

theList.clearSelection();
theList.select(indexPath);

Inside the button 'Select the 3rd point' allows to select programmatically

theList.select([2]);

It works but I'm not sure what you're trying to do

The value of name of column

Hi gurus
I'm stuck on 1 Scenario and need your help. I have the following table:
Create table
drop table age_rate;
CREATE TABLE age_rate
(
age_0_4 number 4,
age_5_20 number 4,
age_21_34 number 4,
age_35_44 number 4
);
-------------------------------
Insertion
INSERT INTO age_rate
SELECT 45, 50, 60, 90 double UNION ALL
SELECT 45, 50, 60, 88 OF double UNION ALL
SELECT the 40, 50, 60, 90 double UNION ALL
SELECT 5, 50, 60 and 88 DOUBLE;
-------------------------------
Query on table
SELECT * from age_rate;
The query result
age_0_4 age_5_20 age_21_34 age_35_44
45                          50                     60                     90
45                          50                     60                     88
40                          50                     60                     90
5                            50                     60                     88
Power required
Rate Min_age Max_age
-The lower is age band 0_4
45            0           4
45            0           4
40            0           4
5              0           4
-The lower is age band 5_20
50            5           20
50            5           20
50            5           20
50            5           20
-The lower is age band 21_34
60 21 34
60 21 34
60 21 34
60 21 34
-The lower is age band 35_44
90 35 44
88 35 44
90 35 44
88 35 44
Rules
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Hello

I'm not 100% sure what you want. Do you want 16 production lines at a time, which is 4 lines of output for each line that is actually in the table?

This looks like a job for the UNPIVOT operator:

SELECTION rate

min_age

Case min_age

WHEN 0 THEN 4

WHEN 5 THEN 20

WHEN 21 AND 34

WHEN 35 THEN 44

END AS max_age

Of age_rate

UNPIVOT (rate

FOR min_age IN (age_0_4 0)

age_5_20 AS 5

age_21_34 AS 21

age_35_44 AS 35

)

)

ORDER BY min_age

;

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Then I insert a value such as

INSERT INTO xml_table (1, XMLtype('<current>
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Now, I want to ask about this table. I can easily choose 'country' with the following query

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But I can't select the value of the temperature by this query. Now how to select the value of the temperature of the table?

EXTRACT, EXTRACTVALUE etc are deprecated in 11.2.

Use instead the XQuery functions.

If you need to retrieve several values, XMLTABLE will be good:

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Session altered.

SQL>
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COUNTRY    TEMPERATURE
---------- -----------
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I want that the values of the "col_val" column to divide into several values in the column

Table1:

Col_val Col1, Col2

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L2 AB 45

L1 POINT 45 OF

Code2 CAB 61

ABC 51 LABORATORY

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FFF COT 444

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OUT1 out2 out3-out4, out5

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QQQ

BBV

FFF

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SQL> with t
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  5    from dual
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 23    from dual
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 26    from dual
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 28  select 'FFF' col_val, 'COT' col1, 444 col2
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 30  )
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 32       , max(col2)
 33       , max(col3)
 34       , max(col4)
 35       , max(col5)
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 38                 , decode(col1, 'AB'  , col_val) col2
 39                 , decode(col1, 'LAB' , col_val) col3
 40                 , decode(col1, 'CAB' , col_val) col4
 41                 , decode(col1, 'COT' , col_val) col5
 42                 , t.col2 col_2
 43                 , row_number() over(partition by col2, col1 order by 1) rno
 44              from t
 45         )
 46   group
 47      by col_2, rno
 48   order
 49      by col_2;

MAX(C MAX(C MAX(C MAX(C MAX(C
----- ----- ----- ----- -----
Code1 L2    SSS
L1
            ABC
                  Code2
                        BBV
                        QQQ
                        FFF

7 rows selected.

SQL>

I want to loop through the data from two different tables using for loop where the query should be replaced at runtime, please help me

I have the data into two table with the structure of similar column, I want to loop through the data in these two tables
based on some condition and runtime that I want to put the query in loop for example, the example is given, please help me
create table ab (a number, b varchar2 (20));
Insert into ab
Select rownum, rownum. "" sample "
of the double
connect by level < = 10
create table bc (a number, b varchar2 (20));
Insert into BC.
Select rownum + 1, rownum + 1 | "" sample "
of the double
connect by level < = 10
declare
l_statement varchar2 (2000);
Boolean bool;
Start
bool: = true;
If it is true, then
l_statement: =' select * ab ';
on the other
l_statement: =' select * from bc';
end if
I'm in execute immediate l_statement - something like that, but I don't know
loop
dbms_output.put_line (i.a);
end loop;
end;
Something like that, but this isn't a peace of the code work.

Try this and adapt according to your needs:

declare

l_statement varchar2 (2000);

c SYS_REFCURSOR;

l_a number;

l_b varchar2 (20);

Boolean bool;

Start

bool: = true;

If it is true, then

l_statement: = "select a, b, AB;

on the other

l_statement: = "select a, b from bc;

end if;

--

Open c for l_statement;

--

loop

extract the c in l_a, l_b;

When the output c % notfound;

dbms_output.put_line (l_a |') -' || l_b);

end loop;

close c;

end;

/

Set the value from one point to another element at run time

Hello
I use APEX 4.2
My question is on the same page, we form another, I create two region region html
I'm filling out the form and press on create button then the value created by primary key must be in
page HTML element area (whereas it only displays in editable form mode)
I want after click on create region html button get refreshed and value should appear displaying the only element of the page
any idea?
Thank you
go

Hi, go,

I modified your page, I just created the sub process of PL/SQL after the presents.

Start

Select empno in: P3_EMPNO from emp where ename =: P3_ENAME;

END;

It assigns the value to point P3_EMPNO and session as well. Initially the P3_EMPNO point value is not inserted into the session.

Please check and let me know.

Thank you

Lacombe

Insert the value from the date of the operation, max

Hello

We use oracle 10g R2 on windows.

I want to insert values from one table to the other. Suppose I have a table emp (empcode, salary, dt_update) and have another table emp_live (empcode, salary).

data into the emp table are as

EMPCODE     SALARY     DT_UPDATE

281G     10611230.319     10/9/2010 6:38:30 PM
281G     37819399.457     10/8/2010 6:38:30 PM
291G     16500012.429     10/10/2010 6:38:30 PM
291G     108145595.738     10/9/2010 6:38:30 PM
292G     79449005.406     10/11/2010 6:38:30 PM
292G     198819948.865     10/10/2010 6:38:30 PM
293E     4532332.618     10/12/2010 6:38:30 PM
293E     142572824.216     10/11/2010 6:38:30 PM
294D     116505728.748     10/13/2010 6:38:30 PM
294D     90087585.925     10/12/2010 6:38:30 PM

My requirement is to insert only those records where the maximum date of DT_UPDATE.

In the above senario only records below need to obtain insert

EMPCODE     SALARY     DT_UPDATE
281G     10611230.319     10/9/2010 6:38:30 PM
291G     16500012.429     10/10/2010 6:38:30 PM
292G     79449005.406     10/11/2010 6:38:30 PM
293E     4532332.618     10/12/2010 6:38:30 PM
294D     116505728.748     10/13/2010 6:38:30 PM

I am trying to insert it as

insert into emp_live select empcode,salary from emp where dt_update=(select max(dt_update) from emp)

But above not giving not correct results beacase when I select the records as

select empcode,max(dt_update) from emp group by empcode

Above shows 1665 records, but when I am inserting only insert 16 records.

Help, please.

Something like this:

create table test (empcode varchar2 (4), salary number, date of dt_update);
Insert test values (' ' 281 G ", 10611230.319, to_date (October 9, 2010 06:38:30 ',' mm/dd/yyyy HH24:MI:SS));))
Insert test values (' ' 281 G ", 37819399.457, to_date (October 8, 2010 06:38:30 ',' mm/dd/yyyy HH24:MI:SS));))
Insert test values (' ' 291 G ", 16500012.429, to_date (October 10, 2010 06:38:30 ',' mm/dd/yyyy HH24:MI:SS));))
Insert test values (' ' 291 G ", 108145595.738, to_date (October 9, 2010 06:38:30 ',' mm/dd/yyyy HH24:MI:SS));))
Insert test values (' ' 292 G ", 79449005.406, to_date (October 11, 2010 06:38:30 ',' mm/dd/yyyy HH24:MI:SS));))
Insert test values (' ' 292 G ", 198819948.865, to_date (October 10, 2010 06:38:30 ',' mm/dd/yyyy HH24:MI:SS));))
insert into test values ('293E', 4532332.618, to_date (October 12, 2010 06:38:30 ',' mm/dd/yyyy HH24:MI:SS));))
insert into test values ('293E', 142572824.216, to_date (October 11, 2010 06:38:30 ',' mm/dd/yyyy HH24:MI:SS));))
Insert test values ('294, 116505728.748, to_date (October 13, 2010 06:38:30 ',' mm/dd/yyyy HH24:MI:SS));))
Insert test values ('294, 90087585.925, to_date (October 12, 2010 06:38:30 ',' mm/dd/yyyy HH24:MI:SS));))

SQL> column salary for 99999999999.9999;
SQL> select * from test;

EMPC            SALARY DT_UPDATE
---- ----------------- ---------
281G     10611230.3190 09-OCT-10
281G     37819399.4570 08-OCT-10
291G     16500012.4290 10-OCT-10
291G    108145595.7380 09-OCT-10
292G     79449005.4060 11-OCT-10
292G    198819948.8650 10-OCT-10
293E      4532332.6180 12-OCT-10
293E    142572824.2160 11-OCT-10
294D    116505728.7480 13-OCT-10
294D     90087585.9250 12-OCT-10

10 rows selected.

SQL> ed
Wrote file afiedt.buf

  1  select min(empcode),max(salary),max(dt_update)
  2  from test
  3  group by empcode
  4* order by 1
SQL> /

MIN( MAX(SALARY) MAX(DT_UP
---- ----------- ---------
281G  37819399.5 09-OCT-10
291G   108145596 10-OCT-10
292G   198819949 11-OCT-10
293E   142572824 12-OCT-10
294D   116505729 13-OCT-10

SQL> insert into test
  2  (
  3  select min(empcode) empcode,max(salary) salary,max(dt_update) dt_update
  4  from test
  5  group by empcode
  6  )
  7  /

5 rows created.

SQL> select * from test;

EMPC            SALARY DT_UPDATE
---- ----------------- ---------
281G     10611230.3190 09-OCT-10
281G     37819399.4570 08-OCT-10
291G     16500012.4290 10-OCT-10
291G    108145595.7380 09-OCT-10
292G     79449005.4060 11-OCT-10
292G    198819948.8650 10-OCT-10
293E      4532332.6180 12-OCT-10
293E    142572824.2160 11-OCT-10
294D    116505728.7480 13-OCT-10
294D     90087585.9250 12-OCT-10
281G     37819399.4570 09-OCT-10

EMPC            SALARY DT_UPDATE
---- ----------------- ---------
293E    142572824.2160 12-OCT-10
294D    116505728.7480 13-OCT-10
291G    108145595.7380 10-OCT-10
292G    198819948.8650 11-OCT-10

15 rows selected.

SQL>

Concerning
Girish Sharma

Add up the values from two numeric columns on RTF model

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