Auto increment in a MySQL table programmatically

Similar Questions

• Auto-increment for alreay column in existing table DB

  Hello

  We have a DB table with column of type Number. Table is already to have contained huge. Now, we want to have the auto-increment for this particular column.

  From now on, I created this table-based entity/view objects. Created attribute from entity sequence and update as follows.

  Create the GLOBAL_SEQ INCREMENT OF 1 SEQUENCE START with 1;

  Updated the expression of the attribute of the entity with logical next

  (new oracle.jbo.server.SequenceImpl ("GLOBAL_SEQ", object.getDBTransaction ()) .getSequenceNumber)

  When I tried to create a new line by using "Browser Oracle Business Component", the sequence fixed 0,1, 2... etc. But there are lines with these values in this column.

  But we want to create new line taking into account the maximum value of the column and the increment of 1.

  It would be great, if you can suggest an idea on this issue.

  Thank you

  MSR.

  You can leave to start the sequence with any number you like. For example, you can first make a max (id) of the table selection and the beginning of the sequence value max + 100...

  Timo

• auto increment column restart

  I'm looking for a way to auto-increment column when I've found the solution here.
  BEST creation in Oracle auto-increment columns all the solutions I've found so far use a sequence. However when I remove the table and start the sequence restarts obviously in the last number that is used before.

  So in other words if I insert 5 records in the table I get the sequence 1-5, great! Then I delete the table and would like to raise again 1. obviously due to the method im using the sequence has been updated to obtain the next available number.

  How can I do an auto increment, which always starts from 1 in a table is a solid solution here?

  MySQL is a column of a simple table setting.

  Thanks in advance for any help you guys can provide.

  Miguel

  Here is the answer to my problem.

  UPDATE fvaljor

  SET FVALJOR_SEQ_NUM = ROWNUM

  WHERE FVALJOR_SEQ_NUM IS NULL

  Thank you Paul for trying to help.

  Is not to see that is a report on inserting records in a process already takes that awaits this column be numbered sequentially upwards by one. So I guess the business reason, it's simply that I have to do if I want to plug into this process.

  Thanks anyway, sorry if I wasn't clear.

  Miguel

• auto increment column

  Hello
  
  I have a total of 700 tables, each table has a column that must be incremented automatically.
  
  I am thinking to create distinct sequences and triggers for all tables.
  
  Is there a different approach that could be followed or sequence-trigger is the best option available.
  
  
  * This database has been migrated from MySQL where auto-increment option is available for columns contrary to oracle.
  
  Please notify.

  Salman Qureshi says:

  So I want to generate a trigger too.

  Still not clear what triggers have to do with the automatic generation of the column values. You will probably have to ask them about the details of trigegrs self-generation of values? If you just need automatic generation of values, sequences are what you need.

  Salman

  Using a trigger to fill the column ID with the value of the sequence, you don't have to worry about the application 'forget' to do. Some DBA or developer is once of sqlplus and forget to do. Placing him in a trigger, there is simply no way to properly fill the column in question.

• Management key id primary auto increment without using triggers

  Hi, we have a lot of table in our database with the installation of key ID primary autoincrement than they are in MySQL since we are in the process of migrating to Oracle of MySQL. Now in oracle I learned recently that this application requires the creation of a sequence and a trigger on the id for each table in the type field. We have tables of 30-40 in our scheme and we want to avoid the use of database triggers in our product, as the management of database is out of reach for our device software.
  What are my options to implement the auto increment id feature in oracle... aside from manually specifying the id in the code and it management in the code that would change many existing insert statements. Some info about our application environment: groovy grails, hibernate, oracle, support for mysql

  It is NOT auto-increment, you can avoid manual entry. When executing the INSERT statement, you must use the value of the sequence.

• An error explanation & missing in docs concerning Auto Increment / identity

  HI Data Modeling Team, Hello fellow readers,.
  
  could you explain the meaning of the option
  'Properties of the column' - 'General' - 'Identity' (side), that I don't see a logical difference between these two.
  
  In addition, the meaning of these fields is left in the docs under
  http://docs.Oracle.com/CD/E18464_01/ doc.30 e15802.pdf 'properties of the column 3.8' - 'General' (page 75)
  
  Thank you
  Blama
  
  
  (WinXP, Version 3.0.0.665)
  
  Published by: bl * the 30.12.2011 15:40

  Hi Laurent,.

  You can have only one column of identity for the table. We do not limit the number of auto-increment columns.

  Philippe

• mobile device of auto incremented field

  Hello
  my colleague needs to establish a mechanism in the mobile device (client lite oracle) where the primary field of a table is automatically incremented.
  
  According to the documentation in order to make that happen consistently, so that all customers can synchronize correctly without ambiguities, we have created a sequence
  through the MDW and attached to the publication. then with synchronization, this sequence has been downloaded to all customers and each has a specified window.
  We assume now that we must create the trigger that uses this sequence to provide the correct primary key field.
  
  lets say that the sequence is SYSTEM names. AUTOINCSEQUENCEA
  the table is named SYSTEM. TABLEA
  and the primary key we want auto incr is named ID.
  
  the trigger that we assume that should look like:
  
  CREATE A TRIGGER SYSTEM. TRIGGERTABLEA
  BEFORE INSERTING
  ON THE SYSTEM. TABLEA REFERENCING NEW AS OLD new AND old
  FOR EACH LINE
  BEGIN
  Select AUTOINCSEQUENCEA.nextval in: double new.ID;
  
  END;
  
  (1) but if I run this from the msql on the client machine (windows mobile device) returns an error "syntax". How can I create the trigger that I need that uses my sequence in order
  to appoint the new values in the primary key (auto incremented field?).
  (2) if I can't make it through a normal sql statement then how can I do?
  
  Thank you

  Finally got the work in the sample. See the example:

  http://www.rekounas.org/2009/10/24/how-to-create-an-auto-increment-field-in-Oracle-Lite/

• auto-increment by alpha order

  Hi all

  I want to auto increment based on the groups recordings.

  I have data like below

  ----------------------------------------------------

  Area ID Extender

  --------------------------------------------------

  BA1 100

  BA1 120

  BA1 130

  GB1 190

  TC1 178

  TC1 193

  DX1 103

  I would like to have exit auto increment by as

  ----------------------------------------------------

  Area ID Extender

  --------------------------------------------------

  BA1 100A

  BA1 120A

  BA1 130A

  GB1 190 B

  TC1 178 C

  TC1 193 C

  103 D DX01

  ... and after Z, it should be AA, AB, AC, AD sequence

  could someone pls know that increments the sequence automatically.

  Rgds

  Saaz

  This question was asked several times, see, for example:

  https://community.Oracle.com/search.jspa?q=alphanumeric+sequence&place=%2Fplaces%2F1265&depth=all&customTheme=OTN

• No sequences present in the comparison of two models of auto-increment columns and triggers

  Hi, I'm using Oracle SQL Developer Data Modeler version 4.0.3 and I get the same behavior described in the discussion 9876135.

  Y at - it an update on this issue?

  Thank you

  Hello

  No DOF preview is currently generated differences in properties on the auto-increment columns properties page.

  However, if you create a sequence with the relevant name (and the user as appropriate) in your physical model Oracle, then its properties will be used instead of the ones on the page Auto Increment, and in this case the DOF preview will include the DDL for changes in its properties, e.g.

  FALL OF SEQUENCE "TABLE_1_SEQ".

  ;

  CREATE SEQUENCES "TABLE_1_SEQ."

  START WITH 5

  INCREMENT OF 10

  ;

  If only the increment "by" is changed, an ALTER SEQUENCE will be generated:

  CHANGE THE SEQUENCE "TABLE_1_SEQ".

  INCREMENT OF 10

  ;

  David

• Auto increment/sequence ID?

  Hi all

  I have the following requirement:

  When adding a member to a node, a custom property (lets call him Seq_ID) should auto increment by + 1.

  For example:

  Node1

  -Member A, Seq_ID = 1

  -Member B, Seq_ID = 2

  -Member of C, Seq_ID = 3

  When you add members D, the Seq_ID are fixed at 4 automatically.

  So far, I discovered, correct me if I'm wrong, this is only possible with a derivative / script property. I tried a few JavaScripts, I had in mind, but did not succeed.

  I appreciate all the help

  Concerning

  Pascal

  Pascal,

  In this case, you can try something like this

  ArrayIndex (Abbrev (), ParentPropValue (Core.ChildList), [Comma])

  See if it works for you.

  Thank you

  Denzz

• Add a line to the table programmatically

  Hello

  How do I add lines to the af: table of the java class? for that to editable object view exist on the JSPX page

  Thank you

  Chaya

  You can see the following code to add a line at the end of the table programmatically:

  public String cb1_action() {}

  Add the code in the event here...

  BindingContainer bc is BindingContext.getCurrent () .getCurrentBindingsEntry ();.

  JUCtrlHierBinding hierBinding = (JUCtrlHierBinding) bc.get ("EmployeesView3");

  DCIteratorBinding dciter = hierBinding.getDCIteratorBinding ();

  NavigatableRowIterator nav = dciter.getNavigatableRowIterator ();

  NewRow row = nav.createRow ();

  newRow.setNewRowState (Row.STATUS_INITIALIZED);

  Line lastRow = nav.last ();

  int lastRowIndex = nav.getRangeIndexOf (lastRow);

  nav.insertRowAtRangeIndex (lastRowIndex + 1, newRow);

  dciter.setCurrentRowWithKey (newRow.getKey () .toStringFormat (true));

  Returns a null value.

  }

  For the case where you must add a line in different places of the table, see the link below:

  http://adfsonal.blogspot.in/2013/02/create-row-at-end-of-ADF-table.html

• Accuracy of counties line in the MySQL Table

  I was just looking at the counts of row of the table for some of my MySQL tables listed in HQ... some of these tables should only increase in number of lines (never delete us rows), but table varies greatly as to how many lines is in the table.
  
  So I have two questions...
  (1) these figures are absolutely not accurate... his watch a table which always increases in length as having 100 lines, then 75 and 90 and 88, etc..  IT should show 100, 101, 104, 110.
  
  (2) I know that the MySQL "SELECT COUNT (*) FROM tablename" statement is VERY slow on my servers.  HQ runs this command on my database?  If so, I need to disable this "feature" because he's going to kill my database.  The COUNT command on a table over 1 million lines takes an incredible amount of resources on my MySQL server... and we try to avoid to execute commands to COUNT on these large tables...
  (a) if it executes a SELECT COUNT?
  (b) can I turn that off?
  
  Thank you!
  Stephen

  Hello

  It seems to me that hyperic is not a command select count(), but one
  display the State of the table. It is incorrect when you use innodb tables...

  "Some drivers of storage, such as MyISAM tables, store the exact number. For others
  engine storage, such as InnoDB, this value is an approximation and may
  changing the actual value by as much as 40-50%. In this case, use
  SELECT COUNT (*) to get an accurate count. »

  The advantage of this is that it is not processor intensive.

  Rgds

  Simon.
  >
  > I was just looking at the counts of row of the table for some of my MySQL tables
  > listed in HQ... some of these tables should only be more and more
  > lines (never delete us lines), but the picture varies greatly as to how much
  > rows are in the table.
  >
  > So I have two questions...
  > 1) these numbers are absolutely not accurate... its a table showing that
  > increasing in length as having 100 lines, then 75, then 90, then 88,.
  > etc.  IT should show 100, 101, 104, 110.
  >
  (> 2) I know that the MySQL "SELECT COUNT (*) FROM tablename" statement is
  > VERY slow on my servers.  HQ runs this command on my database?  If
  > then I have to disable this "feature" because he's going to kill my database.  The
  > Order of COUNTY on a table over 1 million lines takes an incredible amount
  > resources on my MySQL server... and we try to avoid running COUNT
  > orders on these large tables...
  (> a) if he executes a SELECT COUNT?
  (> b) can I turn that off?
  >
  > Thank you!
  > Stephen
  >
  > --
  > This message has been scanned for viruses and
  > dangerous by MailScanner and is content
  > supposed to be clean.

• Selected set of line in the table programmatically

  Hello!
  
  I use JDeveloper 11 g Release 2 (11.1.2.3.0).
  
  I want to put the line in a table programmatically. My intention is to choose a final that was inserted. (We can do this, questioning the highest Id).
  
  How can I do?
  
  Thanks in advance!

  Hello
  Check

  http://mjabr.WordPress.com/2011/07/02/how-to-control-the-location-of-the-new-row-in-aftable/
  http://itnewscast.com/applications/inserting-new-rows-last-row-table

• Can I use a username of the php session to select a mysql table?

  In my site, I have a situation where

  $_SESSION ['MM_Username"]

  will be the same name as a MYSQL table prepared.

  (There will be a limited number of users and tables)

  Instead of writing a long series of "else if" to deal with each user of each page, I want to use the $_SESSION ['MM_Username'] to point to the correct MSQL table.

  For example

  <? PHP $query_rstPalabs = "SELECT * FROM patricia WHERE YesNo > = 1";  ? >

  How can I replace the $_SESSION ['MM_Username'] for 'patricia' here in a way that the SQL would choose the table 'patricia '?

  Please be aware that I am not a professional designer and wading in the shallows of PHP/MSQL.  I use DW2004MX to help.
  Thank you.

  Smiffy47,

  Assign a variable with $_SESSION ['MM_Username"]. Call the variable in your query:

  Example:

  $user = $_SESSION ['MM_Username"];

  $user WHERE yesno >= 1" ; =""?>

  Be sure to use session_start at the beginning of your page so that you are allowed to call session variables in your application.

  This should be added before your declaration DOCTYPE (the very beginning of your page).

  -ST

• value of radio button shows only not in the mysql table

  This looks like a small problem, but I can't seem to find the solution. I created a form on a web page. After the form is completed, a confirmation is sent to the person who filled out the form and a mysql table is populated with the information from the form. Everything works well except for one small thing: the value of the radio button does not appear in the table.

  Here is the form: http://www.webdevpractice.com/genoptix/CE/register.php

  Here is the table on the Web page: http://www.webdevpractice.com/genoptix/CE/admin/index.php you will see that the Contact Me column does not.

  Here insert the php code in the registration form page:

  if ((isset($_POST["MM_insert"])) && ($_POST["MM_insert"] == "registration")) {
    $insertSQL = sprintf("INSERT INTO registrants (registrant_id, first_name, last_name, medtech_id, job_title, company, city, `state`, email, phone, contact) VALUES (%s, %s, %s, %s, %s, %s, %s, %s, %s, %s, %s)",
                         GetSQLValueString($_POST['registrant_id'], "int"),
                         GetSQLValueString($_POST['first_name'], "text"),
                         GetSQLValueString($_POST['last_name'], "text"),
                         GetSQLValueString($_POST['medtech_id'], "text"),
                         GetSQLValueString($_POST['job_title'], "text"),
                         GetSQLValueString($_POST['company'], "text"),
                         GetSQLValueString($_POST['city'], "text"),
                         GetSQLValueString($_POST['state'], "text"),
                         GetSQLValueString($_POST['email'], "text"),
                         GetSQLValueString($_POST['phone'], "text"),
                         GetSQLValueString(isset($_POST['contact']) ? "true" : "", "defined","'Y'","'N'"));
  

  I used phpMyAdmin to create the db and table. I put the field contact as follows:

  Type: ENUM

  Length/values: ', 'y '.

  Default: no

  Ranking: utf8_unicode_ci

  Can you find the problem?

  I found the problem. I don't broadcast my stupidity, but I have a time I changed the last field of contact_me contact and I forgot to download the change on one of the files (I thought I had downloaded it). In any case, thanks for responding to my message. It is good to know that altruistic GRAMPS remains!