Can i generate dynamic variables

hi guys
can we generate varibles in a plsql block dynamically ..viz i have some varibles in the data base that are entered by the user and the values are to be calculated at the run time based on some of those varible eg
in database
code formula (varchar2)
a --
b a/2
c b-a*6
etc..
so the problem is to calculate them at run time say based on a (in the above eg).
so scract ur head a little and ....enjoy

You cannot create a table inside a trigger (unless you use an autonomous transaction) since that invloves DDL. Are you certain that you cannot use something like a global temporary table?
Justin
Distributed Database Consulting, Inc.
http://www.ddbcinc.com/askDDBC

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    I'm kinda new to JSP, and have the following question:
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    So:
    String result = "";
    for(int i = 1; i <= 10; i++){
    result = "test" + i;
    // do something with result here
    I would like that the string "result" becomes a variable: test1, test2, test3, ...
    I know it is possible in PHP like this:
    for($i=1; $i<=$10; $i++){
    $result = ${"test".$i};
    // here I can do something with the generated variables $test1, $test2, $test3, ...
    Does anyone got a solution for this problem? Cause it's driving me crazy ;)

    I tried, but I keep getting error's... Anything wrong?
    import java.awt.event.*;
    import java.awt.*;
    import java.util.*;
    import java.util.Map;
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         private Button[] btnCalc;
         private Panel pnlLabel;
         private String[][] btnArrRow;
         private Label lblRes;
         private Panel[] pnlBtnRow;
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            super(titel);
            MaakLayout();
            ToonFrame();
        private void ToonFrame() {
            setSize(250, 250);
            Dimension d = getToolkit().getScreenSize();
            setLocation((d.width - getSize().width) / 2, (d.height - getSize().height) / 2);
            addWindowListener(new AwtCalculatorListeners());
            setVisible(true);
        private void MaakLayout(){
            setBackground(new Color(224, 224, 224));
            setLayout(new GridLayout(6, 1, 5, 5));
            pnlLabel = new Panel(new GridLayout(1, 1, 5, 5));
            String[][] btnArrRow = new String[5][5];
            btnArrRow[0][0] = "Sin";
            btnArrRow[0][1] = "Cos";
            btnArrRow[0][2] = "Tan";
            btnArrRow[0][3] = "C";
            btnArrRow[0][4] = "CA";
            btnArrRow[1][0] = "7";
            btnArrRow[1][1] = "8";
            btnArrRow[1][2] = "9";
            btnArrRow[1][3] = "Sqrt";
            btnArrRow[1][4] = "Pow";
            btnArrRow[2][0] = "4";
            btnArrRow[2][1] = "5";
            btnArrRow[2][2] = "6";
            btnArrRow[2][3] = "x";
            btnArrRow[2][4] = "/";
            btnArrRow[3][0] = "1";
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            btnArrRow[3][2] = "3";
            btnArrRow[3][3] = "+";
            btnArrRow[3][4] = "-";
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  • Can we generate Dynamic fields in HANA

    Hi Frzz,
    I have a requirement, in which i need to generate the fieds based on the value set dynamically. Is it possible in HANA with scripted Calculation view??
    Please guide.
    Best Regards,
    Krishna.

    Hello Krishna,
    If i understood your problem
    Your data looks like this
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    2
    1
    3
    1
    4
    2
    5
    2
    6
    2
    7
    3
    8
    3
    9
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    Level 3
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    4
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    6
    7
    8
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    if so, dynamic sql might seem a good option.
    My experience suggest there may be a better way...
    For Starters ... check out
    Window Functions - SQL Reference - SAP Library
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    Warm regards
    aadi

  • Dynamic Variable Names

    Okay, I just need to figure out how to make dynamic variable
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    On Thu, 22 May 2008 17:14:42 +0000 (UTC), kenji776 wrote:
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  • Dynamic Variable Declare

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    How can I refresh Dynamic Variables in OBIEE in a Unix enviroment? and can I only refresh a certain list of them?

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    How to generate report with dynamic variable number of columns?
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    In order to clarify my question, Please consider following table:
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    PERIOD     VARCHAR2 (50) PRIMARY KEY
    CREATE TABLE STATE_INCOME (
         NAME     VARCHAR2 (2),
         PERIOD     VARCHAR2 (50)     REFERENCES TIME_PERIODS (PERIOD) ,
         INCOME     NUMBER (12, 2)
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    PERIOD2
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    SQL> -- test tables and test data:
    SQL> CREATE TABLE states
      2    (state VARCHAR2 (2))
      3  /
    Table created.
    SQL> INSERT INTO states
      2  VALUES ('AK')
      3  /
    1 row created.
    SQL> INSERT INTO states
      2  VALUES ('AL')
      3  /
    1 row created.
    SQL> INSERT INTO states
      2  VALUES ('AR')
      3  /
    1 row created.
    SQL> INSERT INTO states
      2  VALUES ('CA')
      3  /
    1 row created.
    SQL> INSERT INTO states
      2  VALUES ('DE')
      3  /
    1 row created.
    SQL> INSERT INTO states
      2  VALUES ('FL')
      3  /
    1 row created.
    SQL> CREATE TABLE TIME_PERIODS
      2    (PERIOD VARCHAR2 (50) PRIMARY KEY)
      3  /
    Table created.
    SQL> INSERT INTO time_periods
      2  VALUES ('PERIOD1')
      3  /
    1 row created.
    SQL> INSERT INTO time_periods
      2  VALUES ('PERIOD2')
      3  /
    1 row created.
    SQL> INSERT INTO time_periods
      2  VALUES ('PERIOD3')
      3  /
    1 row created.
    SQL> INSERT INTO time_periods
      2  VALUES ('PERIOD4')
      3  /
    1 row created.
    SQL> CREATE TABLE STATE_INCOME
      2    (NAME   VARCHAR2 (2),
      3       PERIOD VARCHAR2 (50) REFERENCES TIME_PERIODS (PERIOD),
      4       INCOME NUMBER (12, 2))
      5  /
    Table created.
    SQL> INSERT INTO state_income
      2  VALUES ('AK', 'PERIOD1', 1222.23)
      3  /
    1 row created.
    SQL> INSERT INTO state_income
      2  VALUES ('CA', 'PERIOD1', 2423.20)
      3  /
    1 row created.
    SQL> INSERT INTO state_income
      2  VALUES ('DE', 'PERIOD1', 232.33)
      3  /
    1 row created.
    SQL> INSERT INTO state_income
      2  VALUES ('FL', 'PERIOD1', 345.21)
      3  /
    1 row created.
    SQL> -- the basic query:
    SQL> SELECT   SUBSTR (time_periods.period, 1, 10) period,
      2             SUM (DECODE (name, 'AK', income)) "AK",
      3             SUM (DECODE (name, 'CA', income)) "CA",
      4             SUM (DECODE (name, 'DE', income)) "DE",
      5             SUM (DECODE (name, 'FL', income)) "FL"
      6  FROM     state_income, time_periods
      7  WHERE    time_periods.period = state_income.period (+)
      8  AND      time_periods.period IN ('PERIOD1','PERIOD2','PERIOD3')
      9  GROUP BY ROLLUP (time_periods.period)
    10  /
    PERIOD             AK         CA         DE         FL                                             
    PERIOD1       1222.23     2423.2     232.33     345.21                                             
    PERIOD2                                                                                            
    PERIOD3                                                                                            
                  1222.23     2423.2     232.33     345.21                                             
    SQL> -- package that dynamically executes the query
    SQL> -- given variable numbers and values
    SQL> -- of states and periods:
    SQL> CREATE OR REPLACE PACKAGE package_name
      2  AS
      3    TYPE cursor_type IS REF CURSOR;
      4    PROCEDURE procedure_name
      5        (p_periods   IN     VARCHAR2,
      6         p_states    IN     VARCHAR2,
      7         cursor_name IN OUT cursor_type);
      8  END package_name;
      9  /
    Package created.
    SQL> CREATE OR REPLACE PACKAGE BODY package_name
      2  AS
      3    PROCEDURE procedure_name
      4        (p_periods   IN     VARCHAR2,
      5         p_states    IN     VARCHAR2,
      6         cursor_name IN OUT cursor_type)
      7    IS
      8        v_periods          VARCHAR2 (1000);
      9        v_sql               VARCHAR2 (4000);
    10        v_states          VARCHAR2 (1000) := p_states;
    11    BEGIN
    12        v_periods := REPLACE (p_periods, ',', ''',''');
    13        v_sql := 'SELECT SUBSTR(time_periods.period,1,10) period';
    14        WHILE LENGTH (v_states) > 1
    15        LOOP
    16          v_sql := v_sql
    17          || ',SUM(DECODE(name,'''
    18          || SUBSTR (v_states,1,2) || ''',income)) "' || SUBSTR (v_states,1,2)
    19          || '"';
    20          v_states := LTRIM (SUBSTR (v_states, 3), ',');
    21        END LOOP;
    22        v_sql := v_sql
    23        || 'FROM     state_income, time_periods
    24            WHERE    time_periods.period = state_income.period (+)
    25            AND      time_periods.period IN (''' || v_periods || ''')
    26            GROUP BY ROLLUP (time_periods.period)';
    27        OPEN cursor_name FOR v_sql;
    28    END procedure_name;
    29  END package_name;
    30  /
    Package body created.
    SQL> -- sample executions from SQL:
    SQL> VARIABLE g_ref REFCURSOR
    SQL> EXEC package_name.procedure_name ('PERIOD1,PERIOD2,PERIOD3','AK,CA,DE,FL', :g_ref)
    PL/SQL procedure successfully completed.
    SQL> PRINT g_ref
    PERIOD             AK         CA         DE         FL                                             
    PERIOD1       1222.23     2423.2     232.33     345.21                                             
    PERIOD2                                                                                            
    PERIOD3                                                                                            
                  1222.23     2423.2     232.33     345.21                                             
    SQL> EXEC package_name.procedure_name ('PERIOD1,PERIOD2','AK,AL,AR', :g_ref)
    PL/SQL procedure successfully completed.
    SQL> PRINT g_ref
    PERIOD             AK         AL         AR                                                        
    PERIOD1       1222.23                                                                              
    PERIOD2                                                                                            
                  1222.23                                                                              
    SQL> -- sample execution from PL/SQL block
    SQL> -- using parameters derived from processing
    SQL> -- cursors containing results of other queries:
    SQL> DECLARE
      2    CURSOR c_period
      3    IS
      4    SELECT period
      5    FROM   time_periods;
      6    v_periods   VARCHAR2 (1000);
      7    v_delimiter VARCHAR2 (1) := NULL;
      8    CURSOR c_states
      9    IS
    10    SELECT state
    11    FROM   states;
    12    v_states    VARCHAR2 (1000);
    13  BEGIN
    14    FOR r_period IN c_period
    15    LOOP
    16        v_periods := v_periods || v_delimiter || r_period.period;
    17        v_delimiter := ',';
    18    END LOOP;
    19    v_delimiter := NULL;
    20    FOR r_states IN c_states
    21    LOOP
    22        v_states := v_states || v_delimiter || r_states.state;
    23        v_delimiter := ',';
    24    END LOOP;
    25    package_name.procedure_name (v_periods, v_states, :g_ref);
    26  END;
    27  /
    PL/SQL procedure successfully completed.
    SQL> PRINT g_ref
    PERIOD             AK         AL         AR         CA         DE         FL                       
    PERIOD1       1222.23                           2423.2     232.33     345.21                       
    PERIOD2                                                                                            
    PERIOD3                                                                                            
    PERIOD4                                                                                            
                  1222.23                           2423.2     232.33     345.21                       

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    *_+Detail of what i'm trying to do+_*
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    <position>3</position>
    <level>2</level>
    <children></children>
    </node>
    <node>
    <category_id>8</category_id>
    <parent_id>2</parent_id>
    <name>Camera</name>
    <is_active>1</is_active>
    <position>4</position>
    <level>2</level>
    <children></children>
    </node>
    </nodes>
    Is this correct format to create dynamic menu?

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