Auto increment array index

Hi,
I have a small problem which i am trouble trying to figure out. Well i have 2 arrays with equal number of elements in each array. What i intend to do is to take the first element from each array and use them in a mathematical expression. Then i would like to increment the indexes of both arrays programmatically and then access the next elements from each array. This procedure is to continue till the end of the array(s). How can i do this. I have tried a couple of things but just dont seem to be able to get around the problem. Help!!!
I have attached the sample code below. I am using version LabVIEW version 8.5.1.
Thank you,
Arun
Attachments:
Sample code 1.vi ‏11 KB

Feed both arrays into a for loop. Have the tunnels set for auto-indexing. Do the math. Have the tunnel going out the right hand side be set for autoindexing.
I would recommend looking at the online LabVIEW tutorials
LabVIEW Introduction Course - Three Hours
LabVIEW Introduction Course - Six Hours

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First of all, I have to apologize for the long code samples, but their content is not so important, I just wanted to give as much info as I can. Besides they are really simple and I tried to comment as much as possible.
I'm working on a pixel shader doing deferred lighting of the frame (Direct3D feature level 11.0, PS
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here's simplified part of the point lighting in HLSL, so you could imagine the structure of the lighting algorithm:
// Total amount of color that pixel receives from all the point light sources.
float3 totalPointLightColor = { 0.0f, 0.0f, 0.0f };
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[loop] for (uint i = 0; i < g_scene.pointLightCount; i++)
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I compile shaders with D3DCompileFromFile() method, using the following flags:
shaderFlags = D3DCOMPILE_ENABLE_STRICTNESS | D3DCOMPILE_DEBUG
| D3DCOMPILE_SKIP_OPTIMIZATION | D3DCOMPILE_PREFER_FLOW_CONTROL;
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shaderFlags = D3DCOMPILE_ENABLE_STRICTNESS | D3DCOMPILE_OPTIMIZATION_LEVEL3;
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in debug compilation mode.
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414 instructions in ASM, and performance is fine. If I uncomment only 1 line with CAPSED comment in the section above (which actually does nothing, as you can see), I get
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# Loop starts.
loop
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iadd r8.w, r5.w, l(1)
mov r5.w, r8.w
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and r16.xyzw, r10.yyyy, cb6[3].wxyz
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div r6.w, r10.x, r6.w
mul r6.w, r6.w, r7.w
# etc.
endloop
I tried to save current array element to temp variable at the beginning of the loop, but it makes no difference - only several more instructions are added to copy the data.
I just can't understand, why in the first case loop is translated into such small and logic code where array access is done via single
[] operator, but in the second one it expands to such enormous bunch of instructions? And I change only 1 line of code, nothing more (and that line does nothing actually - it even has no ASM representation)! But every array access seems to
be affected with this change.
Can someone please explain that to me? Is there some sort of tricks with array indexing or loops in HLSL? I tried to find something about it on the Internet to no avail. Seems like I miss something very simple and obvious, but I don't get it. Sadly I
work mostly alone by now and know nobody familiar with ASM / HLSL / Direct3D. Answering this question on another popular developer resource brought no result.
Big thanks in advance for any tips or explanations!

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--- MBeans waiting for other MBeans ---
ObjectName: jboss.j2ee:service=EjbModule,module=MedicalEJB.jar
State: FAILED
Reason: java.lang.StringIndexOutOfBoundsException: String index out of range: 0
--- MBEANS THAT ARE THE ROOT CAUSE OF THE PROBLEM ---
ObjectName: jboss.j2ee:service=EjbModule,module=MedicalEJB.jar
State: FAILED
Reason: java.lang.StringIndexOutOfBoundsException: String index out of range: 01Simple Doctor table:
CREATE TABLE [dbo].[Doctors](
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* name="mssql-get-generated-keys"
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package com.bdintegrations.MedicalApp.EJB;
import java.rmi.RemoteException;
import javax.ejb.EJBException;
import javax.ejb.EntityContext;
import javax.ejb.RemoveException;
* 
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* @jboss.unknown-pk
* class="java.lang.Integer"
* column-name="doctorid"
* field-name="doctorid"
* jdbc-type="INTEGER"
* sql-type="int"
* auto-increment="true"
* @jboss.persistence
* datasource="java:/MSSQLDS"
* datasource-mapping="MS SQLSERVER2005"
* table-name="dbo.Doctors"
* create-table="false" remove-table="false"
* alter-table="false"
* 
* @generated
public abstract class DoctorBean implements javax.ejb.EntityBean {
     * 
     * The ejbCreate method.
     * 
     * 
     * @ejb.create-method
     * 
     * @generated
    public java.lang.Object ejbCreate(String firstName, String lastName) throws javax.ejb.CreateException {
        setFirstname(firstName);
        setLastname(lastName);
        return null;
        // end-user-code
     * 
     * The container invokes this method immediately after it calls ejbCreate.
     * 
     * @generated
    public void ejbPostCreate() throws javax.ejb.CreateException {
        // begin-user-code
        // end-user-code
     * 
     * CMP Field doctorid
     * Returns the doctorid
     * @return the doctorid
     * 
     * 
     * @ejb.persistent-field
     * @ejb.persistence
     *    column-name="DoctorId"
     *     jdbc-type="INTEGER"
     *     sql-type="int identity"
     *     read-only="false"
     * @ejb.pk-field
     * @ejb.interface-method
     * 
     * @generated
    public abstract java.lang.Integer getDoctorid();
     * 
     * Sets the doctorid
     * @param java.lang.Integer the new doctorid value
     * 
     * 
     * @ejb.interface-method
     * 
     * @generated
    public abstract void setDoctorid(java.lang.Integer doctorid);
     * 
     * CMP Field firstname
     * Returns the firstname
     * @return the firstname
     * 
     * 
     * @ejb.persistent-field
     * @ejb.persistence
     *    column-name="firstName"
     *     jdbc-type="VARCHAR"
     *     sql-type="varchar"
     *     read-only="false"
     * @ejb.interface-method
     * 
     * @generated
    public abstract java.lang.String getFirstname();
     * 
     * Sets the firstname
     * @param java.lang.String the new firstname value
     * 
     * 
     * @ejb.interface-method
     * 
     * @generated
    public abstract void setFirstname(java.lang.String firstname);
     * 
     * CMP Field lastname
     * Returns the lastname
     * @return the lastname
     * 
     * 
     * @ejb.persistent-field
     * @ejb.persistence
     *    column-name="lastName"
     *     jdbc-type="VARCHAR"
     *     sql-type="varchar"
     *     read-only="false"
     * @ejb.interface-method
     * 
     * @generated
    public abstract java.lang.String getLastname();
     * 
     * Sets the lastname
     * @param java.lang.String the new lastname value
     * 
     * 
     * @ejb.interface-method
     * 
     * @generated
    public abstract void setLastname(java.lang.String lastname);
    /* (non-Javadoc)
     * @see javax.ejb.EntityBean#ejbActivate()
    public void ejbActivate() throws EJBException, RemoteException {
        // TODO Auto-generated method stub
    /* (non-Javadoc)
     * @see javax.ejb.EntityBean#ejbLoad()
    public void ejbLoad() throws EJBException, RemoteException {
        // TODO Auto-generated method stub
    /* (non-Javadoc)
     * @see javax.ejb.EntityBean#ejbPassivate()
    public void ejbPassivate() throws EJBException, RemoteException {
        // TODO Auto-generated method stub
    /* (non-Javadoc)
     * @see javax.ejb.EntityBean#ejbRemove()
    public void ejbRemove() throws RemoveException, EJBException,
            RemoteException {
        // TODO Auto-generated method stub
    /* (non-Javadoc)
     * @see javax.ejb.EntityBean#ejbStore()
    public void ejbStore() throws EJBException, RemoteException {
        // TODO Auto-generated method stub
    /* (non-Javadoc)
     * @see javax.ejb.EntityBean#setEntityContext(javax.ejb.EntityContext)
    public void setEntityContext(EntityContext arg0) throws EJBException,
            RemoteException {
        // TODO Auto-generated method stub
    /* (non-Javadoc)
     * @see javax.ejb.EntityBean#unsetEntityContext()
    public void unsetEntityContext() throws EJBException, RemoteException {
        // TODO Auto-generated method stub
    public DoctorBean() {
        // TODO Auto-generated constructor stub
}JSP client page snippet:
<%
DoctorHome home = DoctorUtil.getHome();
Doctor doctor = home.create("Jon","Smith");
%>
<%=doctor.getDoctorid() %>thanks

Nevermind.. no one bothered to inform the developer that the path to the collection AND the path to the directory that the collection is for are different on this other server.
Fixed.

How to get auto-increment value after insert on ACCESS db?

When you insert a new record to a table with an auto-incrementing key, how do you find the value for the row you just inserted? This works differently with different databases. I know how it's done on ORACLE and mySql.
How does it work with ACCESS through ODBC? How about MSSQL?

I have discovered there's a LAST aggregate function which when I've tested it gets the just inserted auto-increment, but I'm not sure if it's reliable. You have to do:
SELECT LAST(index-field) FROM table
That ought to be faster than MAX, which I've noticed some people use. Persumable LAST will get the value from the last row in the table's natural order.
In fact an auto-increment field has no business filling in missing slots since the main point is a a foreign key in other tables and a foreign key pointing to a deleted table row ought to be invalidated, not point to some unrelated successor record.
I could use a separate table as a source of counters, of course, though that's one more call. In either case I'm worried about thread safety. In Oracle there are special sequence objects for this purpose which are incremented and read atomically. I'm not sure if the access driver transaction handling works adequately.
Perhaps the safest approach might be to use a separate sequencer table and Java sychronisation to serialise access to each row in the sequencer table (assuming all the access is from the same app).

Auto Increment in hibernate

Hello every one,
i have to write the code that used for diffrent databases like oracle,sql-server2000..
the problem has generated at the auto increment field...
the problem is as follows....
1) Identity field in sql-server but not in oracle because for oracle it uses index
i try like
<id name="id" column="id">
<generator class="increment"/>
</id>
it works fine for oracle but not for sql-server and ....
<id name="id" column="id">
<generator class="identity"/>
</id>
it works fine for sql-server but not for oracle because the id field is not null and it gives error that null field is not allowed ....
is there any other solution....then please help me
thanks
pandev84

hello frnd,
thanx for reply..
but how can i map these files in config file...
pls help..
thanx and regards,
Pandev84If you can't be bothered to spell out these words, and historically you also can't be bothered to answer questions or read documentation (hint: the answer to your question can be found here http://hibernate.org) why should people help you?

How can I automatically increment an auto incremented column?

Hello!
I have a table with an auto incremented "id" field.
It looks like this:
id (PK, auto_increment) name address phone
I would like to make an insertion like:
INSERT INTO Person (name, address, phone) VALUES (?,?,?)
...but it says that all fields have to be used.
I get
java.sql.SQLException: Field 'id' doesn't have a default value
How can I bypass this?
I have looked at [this example|http://blog.taragana.com/index.php/archive/java-how-to-get-auto-increment-values-after-sql-insert/] , but it didn´t work for me, it still says the "id" column has not a default value:

Sorry, it is a MySQL database.
The table consists of 4 columns:
id (PK, auto_increment)
name (Varchar)
address (Varchar)
phone (Varchar)
If I use PHPMyAdmin to insert a new row, then this query works:
INSERT INTO `mydb`.`person` (
`id` ,
`name` ,
`address` ,
`phone`
VALUES (
NULL , 'Test', 'Roxxor', 'Europe', '12345'
);{code}I tested to use the method setNull() on the first column in the preparedStatement but it didn´t work.
Do you need more info from me to be able to help me?
I have tried this (but got the error that the "Field 'id' doesn't have a default value"):
[code]con.setAutoCommit(true);
            String query = "INSERT INTO person(id, name, address, phone) VALUES (?, ?, ?, ?)";
            PreparedStatement stmt = con.prepareStatement(query);
            stmt.setNull(1, java.sql.Types.NULL);
            stmt.setString(2, name);
            stmt.setString(3, address);
            stmt.setString(4, phone);
            stmt.executeUpdate();
            stmt.close();[/code]

Gets the new id of auto-increment field by jdbc

There is a auto-increment index field of a table. I would like to add a row in that table by jdbc. The process is success and the index will increase automatically. However i would like to get the newly added index number. How can i do this? Thanks a lot.

This is off of Microsoft's T-SQL site http://msdn.microsoft.com/library/default.asp?url=/library/en-us/tsqlref/ts_tsqlcon_6lyk.asp
@@IDENTITY and SCOPE_IDENTITY will return the last identity value generated in any table in the current session. However, SCOPE_IDENTITY returns the value only within the current scope; @@IDENTITY is not limited to a specific scope.
IDENT_CURRENT is not limited by scope and session; it is limited to a specified table. IDENT_CURRENT returns the identity value generated for a specific table in any session and any scope. For more information, see IDENT_CURRENT.

Auto increment field in database issue

Ok, I have read all about the issues with the auto increment field when trying to hook my form up to a ms access database.
My problem is that the auto increment field is the one field I want in my form.
Any suggestions how to create a new record with my form? its a simple database, date field, and PO number (the auto incremented field)
Just trying to get a fresh PO number on my PO form each time its filled out....

I have a vital form that clients fill out, which is passed to many people in the company along the workflow. The form is a Planner and we have in the following PDF, Word Doc..
Well before, the Planner.pdf was originally created in Word, since most people have access to Word.. but evolved to a PDF form created from the Word Doc via Adobe LiveCycle Designer 8.0 w/ User Rights enabled so that the form could be filled out and saved using Adobe Reader.. which was a step better than Word.. being that it is free. But this needed to be easier and more to the point b/c some clients don't particularly like installing the latest version of Reader, even if you provide them the link. Nor do they like saving the form, filling the form, and attaching the form to send back.
My goal is to have the client fill an HTML version of the form, submit and be done with it, but everyone in the workflow be able to easily receive the filled Planner as a PDF form.
So some months ago I ran into this post Chris Trip, "Populate Livecycle PDF from mySQL database using PHP" #8, 22 Sep 2007 4:37 pm
which uses the command line Win32 pdftk.exe to merge an FDF file into an existing PDF on the remote server, and serve this to whoever.
My problem was with shared hosting and having the ability to use the Win32 pdftk.exe along with PHP which is predominantly used on Linux boxes. And we used a Linux box.
so i created the following unorthodox method, which a client fills the HTML version of the Planner, all field values are INSERTED into a table in MySQL DB, I and all filled planners that have been filled by clients to date can be viewed from a repository page where an XML file is served up of the corresponding client, but someone would have to have Acrobat Professional, to import the form data from the XML file into a blank form.. altoughh this is simple for me.. I have the PHP file already created so that when a Planner is filled and client submits. >> the an email is sent to me with a table row from the repository of the client name, #, email, and a link to d-load the XML file,
But I also have the PHP files created so that the Planner can be sent to by email to various people in the workflow with certain fileds ommitted they they do not need to see, but instead of the XML file beiong served up i need the filled PDF Planner to be served.
I can do this locally with ease on a testing server, but I am currently trying to use another host that uses cross-platform compatibility so i can use PHP and the pdftk.exe to achieve this, as that is why I am having to serve up an XML file b/c we use a Linux server for our website, and cant execute the exe.
Now that I am testing the other server (cross-platform host), just to use them to do the PDF handling (and it's only $5 per month) I am having problems with getting READ, WRITE, EXECUTE permissions..
Si guess a good question to ask is can PHP do the same procedure as the pdftk.exe, and i can eleminate it.
or how in the heck can i get this data from the DB into a blank PDF form, like i have described??
here are some link to reference
Populating a LiveCycle PDF with PHP and MySQL
http://www.andrewheiss.com/Tutorials?page=LiveCycle_PDFs_and_MySQL
HTML form that passed data into a PDF
http://www.mactech.com/articles/mactech/Vol.20/20.11/FillOnlinePDFFormsUsingHTML/index.htm l
and an example
http://accesspdf.com/html_pdf_form/

Composite Primary Key or Auto Increment key ?

Hi.. i have two ways for make something and don't know what's better ......
Problem : 3 tables
Client ----> ( 1,* ) Activity -----> (1,1) ActivityAccreditation
A Client it can have one or more activities, and one Activity have one ActivityAccreditation. On Client the primary key is CLIENT_ID, the two ways for generate the keys on the other tables are :
a ) On Activity the primary key is composed by CLIENT_ID and SEQUENCE_ACTIVITY ( a number than increment value by CLIENT_ID, example : CLIENT_ID = 1122 could have SEQUENCE_ACTIVITY from 1 to 3 for three activities, and CLIENT_ID = 1122 could have SEQUENCE_ACTIVITY from 1 to 4 for four activities ), and ActivityAccreditation have CLIENT_ID and SEQUENCE_ACTIVITY and ACCREDITATION_TYPE ( a code ).
b) On Activity the primary key is ACTIVITY_ID ( auto increment number ) with the CLIENT_ID like foreign key only. And on ActivityAccreditation have ACTIVITY_ACCREDITATION_ID like primary key and ACTIVITY_ID like foreign key.
The situation is than the numer of rows could to grow very much in the time ( 3.000.000 rows on ActivityAccreditation in one year and the database to be supported each five years ) and we don't know what solution is better by performance......
Tks.

I prefer the surrogate key.
I don't like composite keys as a rule because they tend to inject business logic into keys. Using surrogate keys eliminates this possibility.
For performance reasons, this means that you might want to create additional indexes on those columns to facilitate fast access. But my prejudice is to stick with surrogate keys.
I will admit that I'm not a DBA, so there are certain to be alternative views and arguments. We'll see if any of them pop up on this thread.

LINQ: Update a column with auto increment value

Hi All,
Greetings.
I am very new to C# (though with lot of experience in VC++). Now a days, I am engaged in a C# project where I need to deal with ADO.NET DataTable and related classes. I am stuck up in a scenario as follows:
I have a data table (of DataTable type) pre-populated with many rows (50000+), parsed from a log file. Now I need to add a column that will be holding index number for each records; eg. 1, 2, 3......
I have tried to add the auto-incremented column dynamically, with seed = 0 and increment = 1, but it is not working.
Is there any LINQ query that I can run to update the DataTable at once? Or foreach loop per DataRow is the only option here?
I appreciate any quick suggestion on this.
Thanks in advance.
Sanjoy Jana.

You should add the auto increment column to the DataTable before you pouplate it with the other data:
//1. Create a datatable
DataTable dt = new DataTable();
//2. add the autoincrement column:
DataColumn column = new DataColumn();
column.DataType = System.Type.GetType("System.Int32");
column.AutoIncrement = true;
column.AutoIncrementStep = 1;
column.AutoIncrementSeed = 1;
//3. Fill the dataTable using an SqlDataAdapter or whatever
dt.Columns.Add(new DataColumn("name"));
dt.Rows.Add("1");
dt.Rows.Add("2");
dt.Rows.Add("3");
dt.Rows.Add("4");
Then you don't have to add the "auto incremented" values yourself in some kind of a loop (using for example LINQ or foreach).
If you want to know how to poplulate the DataTable from a database query using an adapter, please refer to the following page:
http://www.dotnetperls.com/sqldataadapter
Hope that helps.
Please remember to mark helpful posts as answer to close your threads and then start a new thread if you have a new question.

Auto increment option

Is there any option for auto increment the values in the tables. for example if we are inserting 100 data's for first data i should specify 1 and for second data it should specify 2 and goes on.

Hi,
Use Sy-tabix in between loop and endloop.
or sy-index = sy-index + 1.
Check this Example.
TABLES:MARA.
          Selection Screen
SELECTION-SCREEN BEGIN OF BLOCK B1 WITH FRAME TITLE TEXT-001.
RANGES:S_MATNR FOR MARA-MATNR.
SELECTION-SCREEN END OF BLOCK B1.
INITIALIZATION.
S_MATNR-LOW = '000000000000000001'.
S_MATNR-HIGH = '0000000000001000'.
S_MATNR-SIGN = 'E'.
S_MATNR-OPTION = 'BT'.
APPEND S_MATNR.
CLEAR S_MATNR.
            Internal Table
DATA:BEGIN OF ITAB OCCURS 0,
       MATNR LIKE MARA-MATNR,
       ERSDA LIKE MARA-ERSDA,
       ERNAM LIKE MARA-ERNAM,
       NTGEW LIKE MARA-NTGEW,
       END OF ITAB.
            Start of Selection
START-OF-SELECTION.
SELECT MATNR
         ERSDA
         ERNAM
         NTGEW FROM MARA INTO TABLE ITAB WHERE MATNR IN S_MATNR.
LOOP AT ITAB.
    WRITE:/ SY-TABIX,ITAB-MATNR.
ENDLOOP.

Does all RDBMS support auto-increment field?

Hi,
I am designing a java application in which I have to write some logic to auto-increment one database field. Can anyone tell me that all the databases support the auto-increment fields.
Thanks in advance.
Chris

There seem to be two kinds of facility for this in databases. One kind has an auto-increment field. Unfortunately they aren't consistent about how you obtain the value just created after an insert (which you almost invariably require to know). Generally you use a select statement to pick up the value of some kind of last row index function, but the name and syntax varies.
The other kind uses a separate object in the database called a SEQUENCE. You create this with a CREATE SEQUENCE statment, and generally you reference nextval(sequence_name) in the default attribute of the database field.
To get the last allocated sequence number you use select currval(sequence_name)
Again the syntax is a bit inconsistent. You should also probably use transaction isolation if someone else might be incrementing the same sequence.

Web Analysis report error : Array Index out of range :1

while running from workspace , below error is being thrown after making few changes to the layout (e.g. moving Measures from Page to Row ) though Design for HTML setting applied.
Array Index out of range :1
These reports are running well in WA studio.
Can any one advise on this please.

Array index out of range: 1The only time you will get that error is when you are accessing an elements index that is not present in the actual indexes in that array

Auto increment array index

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