MDX - More efficient way?

Hi
I am still learning MDX and have written this code. It needs to recalculate all employees in a cost center (COSTCENTER is a property of the DIM EMPLOYEE) when one of the assumptions (e.g P00205 etc) change. These assumptions are planned on cost center level and planned against employee DUMMY. Is there a more efficient way to write this code as there are lots of accounts that needs to be posted to::
*SELECT (%EMPLOYEE%, ID, EMPLOYEE, [COSTCENTER] = %COSTCENTER_SET%)
//Workmens Comp
*XDIM_MEMBERSET P_ACCT = "IKR0000642000"
*FOR %EMP% = %EMPLOYEE%
         [EMPLOYEE].[#%EMP%] = ( [P_ACCT].[P00205],[EMPLOYEE].[DUMMY ]) * ( [P_ACCT].[P00400],[EMPLOYEE].[%EMP%] )
*NEXT
*COMMIT
//Fringe Benefits Employer
*XDIM_MEMBERSET P_ACCT = "IKR0000628100"
*FOR %EMP% = %EMPLOYEE%
         [EMPLOYEE].[#%EMP%] = ( [P_ACCT].[P00210],[EMPLOYEE].[DUMMY ]) * ( [P_ACCT].[P00400],[EMPLOYEE].[%EMP%] )
*NEXT
*COMMIT
//Fringe Benefits Other
*XDIM_MEMBERSET P_ACCT = "IKR0000626100"
*FOR %EMP% = %EMPLOYEE%
         [EMPLOYEE].[#%EMP%] = ( [P_ACCT].[P00209],[EMPLOYEE].[DUMMY ]) * ( [P_ACCT].[P00400],[EMPLOYEE].[%EMP%] )
*NEXT
*COMMIT

Maybe the following?
*SELECT (%EMPLOYEE%, ID, EMPLOYEE, [COSTCENTER] = %COSTCENTER_SET%)
*XDIM_MEMBERSET EMPLOYEE = %EMPLOYEE%
*XDIM_MEMBERSET P_ACCT = IKR0000642000,IKR0000628100,IKR0000626100
//Workmens Comp
[P_ACCT].[#IKR0000642000] = ( [P_ACCT].[P00205],[EMPLOYEE].[DUMMY] ) * ( [P_ACCT].[P00400] )
//Fringe Benefits Employer
[P_ACCT].[#IKR0000628100] = ( [P_ACCT].[P00210],[EMPLOYEE].[DUMMY] ) * ( [P_ACCT].[P00400] )
//Fringe Benefits Other
[P_ACCT].[#IKR0000626100] = ( [P_ACCT].[P00209],[EMPLOYEE].[DUMMY] ) * ( [P_ACCT].[P00400] )
*COMMIT
You should probably also restrict explicitly on all other dimensions in your applications so that none are accidentally left open that don't need to be.
Ethan

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Hi,
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Edited by: RP on Jun 26, 2012 11:11 PM

RP wrote:
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There's also the security issue. What is more secure? SQL encapsulated in stored procs in a secure database and server environment? Or SQL "encapsulated" in text files on the client?
The less code you have running on the client, the less code you have running in the wild that can be compromised without having to first compromise the server.
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More efficient way to find an element...

I am iterating through a vector to determine if it contains a specific element, as determined by an id. I know there must be a better way to do it than the example below. I looked into LinkedHashMap a little bit. Could that be a lest costly solution?
Any examples would be much appreciated...
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btv wrote:
I am iterating through a vector to determine if it contains a specific element, as determined by an id. I know there must be a better way to do it than the example below. I looked into LinkedHashMap a little bit. Could that be a lest costly solution?
Any examples would be much appreciated...
String idToFind = 2314;
for(Enumeration e = reallyBigVector.elements();e.hasMoreElements();) {
String[] nextPerson = (String[]) e.nextElement();
if(nextPerson [5].equals(idToFind))//nextPerson [5] is their id
return true;
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No no no. Don't go storing data in an array of Strings that can be encapsulated in a class. Create a custom Person class holding this data:
public class Person {
private int id;
// other attributes and methods
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More info: [http://java.sun.com/docs/books/tutorial/java/concepts/]

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Depending on the number of rows in the table, I would tend to look at loading the ID's into a temporary table and then using that temporary table in your search, i.e.
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Oh, and if this is implemented, please make sure that users can comfortably fit all text on their screen!

Can u suggest more efficient way

hi
i have strings like
insert into drmandi_trans (drmt_mandi_code,drmt_commodity_code,drmt_qty_arrived,drmt_morning_price_max,drmt_morning_price_min,drmt_evening_price_max,drmt_evening_price_min,DRMT_Tran_date) values ('MD_INMPBPL003','MD_COM_001', 0,0,0,0,0,#8/3/2001#)
and
update drmandi_trans set drmt_qty_arrived = 012 ,drmt_morning_price_max = 012 , drmt_morning_price_min = 012 ,drmt_evening_price_max = 012 ,drmt_evening_price_min= 012 where drmt_mandi_code = 'MD_INMPBPL003' and drmt_commodity_code = 'MD_COM_002' and drmt_tran_date =#8/3/2001#
i want them to be
insert into drmandi_trans (drmt_mandi_code,drmt_commodity_code,drmt_qty_arrived,drmt_morning_price_max,drmt_morning_price_min,drmt_evening_price_max,drmt_evening_price_min,DRMT_Tran_date) values ('MD_INMPBPL003','MD_COM_001', 0,0,0,0,0,'8/3/2001')
update drmandi_trans set drmt_qty_arrived = 012 ,drmt_morning_price_max = 012 , drmt_morning_price_min = 012 ,drmt_evening_price_max = 012 ,drmt_evening_price_min= 012 where drmt_mandi_code = 'MD_INMPBPL003' and drmt_commodity_code = 'MD_COM_002' and drmt_tran_date ='8/3/2001'
i wrote following method for it and pass these strings to it as parameter
public static String changeForSqlServer(String command)
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          String nextToken="";
          String token="";
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                         sqlServerVersion.append("'");
                         previousToken=token;
                         System.out.println("2. p->"+ previousToken+"t->"+token+"n->"+nextToken);
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                         if(st.hasMoreTokens())
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                                        sqlServerVersion.append("'").append(nextToken);
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}although this method does above task i feel that there may be many improvements possible to make it fastest algorithm.
it will be helpful if u can suggest improvements in this code
or suggest some better algorithms
thanks

Could you simplify what excactly your trying to acheive here? Form the look of it, your doing the job of the JDBC. You should consider reading the JDBC doccumentation or buying a book. You should check for the PreparedStatements wich allow you to set predefined Statements with Variable inputs fields.
Check out :
http://java.sun.com/j2se/1.3/docs/guide/jdbc/index.html

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FROM NASS.PARDATA PAR,
GES.CRASHDATA CD,
GES.PERSON PR,
GES.NONMOTORIST NM
WHERE PAR.PARID=CD.PARID AND
CD.PARID=PR.PARID AND
PR.PARID=NM.PARID (+) AND
PR.VEHICLEID=NM.VEHICLEID (+) AND
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PR.PERSONTYPEID BETWEEN 26706 AND 26710 AND
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SELECT 'P22-RANGE-1 ', PSU, CD.PARID, CD.LASTUPDATEDATE,
PR.VEHICLEID P01,
PR.OCCNUMBER P02,
PR.PERSONTYPEID P03,
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FROM NASS.PARDATA PAR,
GES.CRASHDATA CD,
GES.PERSON PR,
GES.NONMOTORIST NM
WHERE PAR.PARID=CD.PARID AND
CD.PARID=PR.PARID AND
PR.PARID=NM.PARID (+) AND
PR.VEHICLEID=NM.VEHICLEID (+) AND
PR.OCCUPANTID=NM.OCCUPANTID (+) AND
PR.PERSONTYPEID BETWEEN 26704 AND 26705 AND
NM.STRIKEVEHICLEID>0
UNION ALL
SELECT 'P22-RANGE-1 ', PSU, CD.PARID, CD.LASTUPDATEDATE,
PR.VEHICLEID P01,
PR.OCCNUMBER P02,
PR.PERSONTYPEID P03,
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FROM NASS.PARDATA PAR,
GES.CRASHDATA CD,
GES.PERSON PR,
GES.NONMOTORIST NM
WHERE PAR.PARID=CD.PARID AND
CD.PARID=PR.PARID AND
PR.PARID=NM.PARID (+) AND
PR.VEHICLEID=NM.VEHICLEID (+) AND
PR.OCCUPANTID=NM.OCCUPANTID (+) AND
PR.PERSONTYPEID = 26711 AND
NM.STRIKEVEHICLEID>0
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EFFICIENT way of escalating an open task

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Is there a reason you want two worfklows? Why not put an e-mail action after the Wait on the same workflow? If you check the "Reevaluate Rule Conditions After Wait" checkbox on the Wait action, the workflow rule will be re-evaluated after your 31 days... so it would only send the e-mail message if the Task is still open (assuming your workflow condition is set to look at Status = Open).
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Hello I am learning PL/SQL. I have a simple procedure where I need to find number of employees and departments per location as per user input of location_id.
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I do get the correct result, but I am just wondering if my query is on the right track and if there is a more "efficient" way of doing this.
Thanks in advance for helping a newbie out.

Hi,
Welcome to the forum!
Something like this will be more efficient:
SELECT    COUNT (employee_id)               AS ECount
,       COUNT (DISTINCT department_id)     AS DCount
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                    FROM      departments
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;You should also try a join instead of the IN subquery.
For efficiency, do only the things you need to do.
For example, you don't need a count of employees in each department, so don't compute one. That means you won't need the in-line view, so don't have one.
You don't need PL/SQL for this job, so don't use PL/SQL if you don't have to. (I realize this question was out of context, so you may have good reasons for doing this in PL/SQL.)
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What is the efficient way of insert some bytes into a file?

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George

Thanks, DrClap.
I have tried your method and you are correct. I have written a simple program which can be used to insert "Hello World " to the start of a file ("c:\\temp\\input.txt"), and I have verified that it can work. Please help to see whether it is correct and whether it has a more efficient way.
public class TestDriver {
     public static void main(String[] args) {
          byte[] back_buffer = new byte [1024];
          byte[] write_buffer = new byte [1024];
          System.arraycopy("Hello World".getBytes(), 0, write_buffer, 0, "Hello World".getBytes().length);
          int write_buffer_length = "Hello World ".getBytes().length;
          int count = 0;
          FileInputStream fis = null;
          FileOutputStream fos = null;
          try {
               fis = new FileInputStream (new File("c:\\temp\\input.txt"));
               fos = new FileOutputStream (new File("c:\\temp\\output.txt"));
               while ((count = fis.read (back_buffer)) >= 0)
                    fos.write(write_buffer, 0, write_buffer_length);
                    System.arraycopy (back_buffer, 0, write_buffer, 0, count);
                    write_buffer_length = count;
               //write the last block
               fos.write(write_buffer, 0, write_buffer_length);
               fis.close();
               fos.close();
               //copy content back into original file
               fis = new FileInputStream (new File("c:\\temp\\output.txt"));
               fos = new FileOutputStream (new File("c:\\temp\\input.txt"));
               while ((count = fis.read (back_buffer)) >= 0)
                    fos.write(back_buffer, 0, count);
               fis.close();
               fos.close();
               //remove temporary file
               File f = new File ("c:\\temp\\output.txt");
               f.delete();
          } catch (FileNotFoundException e) {
               // TODO Auto-generated catch block
               e.printStackTrace();
               try {
                    fis.close();
               } catch (IOException e1) {
                    // TODO Auto-generated catch block
                    e1.printStackTrace();
               try {
                    fos.close();
               } catch (IOException e2) {
                    // TODO Auto-generated catch block
                    e2.printStackTrace();
          } catch (IOException e) {
               // TODO Auto-generated catch block
               e.printStackTrace();
               try {
                    fis.close();
               } catch (IOException e1) {
                    // TODO Auto-generated catch block
                    e1.printStackTrace();
               try {
                    fos.close();
               } catch (IOException e2) {
                    // TODO Auto-generated catch block
                    e2.printStackTrace();
}regards,
George

Efficient Way of Inserting records into multiple tables

Hello everyone,
Im creating an employee application using struts framework. One of the functions of the application is to create new employees. This will involve using one web form. Upon submitting this form, a record will be inserted into two separate tables. Im using a JavaBean (Not given here) between the JSP page and the Java file (Which is partly given below). Now this Java file does work (i.e. it does insert a record into two seperate tables).
My question is, is there a more efficient way of doing the insert into multiple tables (in terms of performance) rather than the way I've done it as shown below? Please note, I am using database pooling and MySQL db. I thought about Batch processing but was having problems writing the code for it below.
Any help would be appreciated.
Assad
package com.erp.ems.db;
import com.erp.ems.entity.Employee;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.Collection;
import java.util.ArrayList;
public class EmployeeDAO {
     private Connection con;
     public EmployeeDAO(Connection con) {
          this.con = con;
     // METHOD FOR CREATING (INSERTING) A NEW EMPLOYEE
     public void create(Employee employee) throws CreateException {
          PreparedStatement psemployee = null;
          PreparedStatement psscheduleresource = null;
          String sqlemployee = "INSERT INTO employee (FIRSTNAME,SURNAME,GENDER) VALUES (?,?,?)";
          String sqlscheduleresource = "INSERT INTO scheduleresource (ITBCRATE,SKILLS) VALUES (?,?)";
          try {
               if (con.isClosed()) {
                    throw new IllegalStateException("error.unexpected");
                        // Insert into employee table
               psemployee = con.prepareStatement(sqlemployee);
               psemployee.setString(1,employee.getFirstName());
               psemployee.setString(2,employee.getSurname());
               psemployee.setString(3,employee.getGender());
                        // Insert into scheduleresource table
               psscheduleresource = con.prepareStatement(sqlscheduleresource);
               psscheduleresource.setDouble(1,employee.getItbcRate());
               psscheduleresource.setString(2,employee.getSkills());
               if (psemployee.executeUpdate() != 1 && psscheduleresource.executeUpdate() != 1) {
                    throw new CreateException("error.create.employee");
          } catch (SQLException e) {
               e.printStackTrace();
               throw new RuntimeException("error.unexpected");
          } finally {
               try {
                    if (psemployee != null && psscheduleresource != null)
                         psemployee.close();
                         psscheduleresource.close();
               } catch (SQLException e) {
                    e.printStackTrace();
                    throw new RuntimeException("error.unexpected");
     }

Hi ,
U can use
set Auto Commit function here ..
let it be false first
and when u do with u r all queries ..
make it true
this function take boolean values
i e helful when u want record to be inserted in all or not at all..
Hope it helps

MDX - More efficient way?

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