Solved

ON DUPLICATE KEY UPDATE question

Posted on 2010-09-09
1
322 Views
Last Modified: 2012-06-27
Got the tables defined below. I need to only update values when a record is trying to be inserted if it is still in the table.
However, I am not sure how to build the indexes for the ON DUPLICATE KEY UPDATE because the keys are mostly autoinc.
Can anyone tell me how to configure these tables to allow this?

Does every column need to be in the key? Does every column need to be updated?

CREATE TABLE IF NOT EXISTS `niin` (
  `NIIN_ID` int(10) NOT NULL AUTO_INCREMENT,
  `NIINS_ID` int(10) NOT NULL DEFAULT '0',
  `NSN_NUMBER` varchar(255) NOT NULL DEFAULT '0',
  `ITEMNAME` varchar(255) NOT NULL DEFAULT '0',
  `SCHEDULEB` varchar(255) NOT NULL DEFAULT '0',
  `ENAC` varchar(255) NOT NULL DEFAULT '0',
  `IMAGE` varchar(255) NOT NULL DEFAULT '',
  KEY `Index 1` (`NIIN_ID`)
) ENGINE=MyISAM DEFAULT CHARSET=latin1;

CREATE TABLE IF NOT EXISTS `niinid` (
  `NIINID_ID` int(10) NOT NULL AUTO_INCREMENT,
  `NIIN_ID` int(10) NOT NULL DEFAULT '0',
  `FIIG` varchar(20) NOT NULL DEFAULT '0',
  `INC` varchar(20) NOT NULL DEFAULT '0',
  `CRITCD` varchar(20) NOT NULL DEFAULT '0',
  `II` varchar(20) NOT NULL DEFAULT '0',
  `RPDMRC` varchar(20) NOT NULL DEFAULT '0',
  `DMIL` varchar(20) NOT NULL DEFAULT '0',
  `DMILINTCD` varchar(20) NOT NULL DEFAULT '0',
  `NIINASGMT` varchar(20) NOT NULL DEFAULT '0',
  `PMIC` varchar(20) NOT NULL DEFAULT '0',
  `ADP` varchar(20) NOT NULL DEFAULT '0',
  `ESDEMI` varchar(20) NOT NULL DEFAULT '0',
  `HMIC` varchar(20) NOT NULL DEFAULT '0',
  `HCC` varchar(20) NOT NULL DEFAULT '0',
  KEY `Index 1` (`NIINID_ID`),
  KEY `Index 2` (`NIIN_ID`)
) ENGINE=MyISAM DEFAULT CHARSET=latin1;

CREATE TABLE IF NOT EXISTS `niinprocurement` (
  `NIINPROCUREMENT_ID` int(10) NOT NULL AUTO_INCREMENT,
  `NIIN_ID` int(10) NOT NULL DEFAULT '0',
  `EFF_DT` varchar(20) NOT NULL DEFAULT '0',
  `MOE` varchar(20) NOT NULL DEFAULT '0',
  `AAC` varchar(20) NOT NULL DEFAULT '0',
  `SOS` varchar(20) NOT NULL DEFAULT '0',
  `UI` varchar(20) NOT NULL DEFAULT '0',
  `UI_PRICE` decimal(10,2) NOT NULL DEFAULT '0.00',
  `QUP` varchar(20) NOT NULL DEFAULT '0',
  `CIIC` varchar(20) NOT NULL DEFAULT '0',
  `SLC` varchar(20) NOT NULL DEFAULT '0',
  `REP` varchar(20) NOT NULL DEFAULT '0',
  `USC` varchar(20) NOT NULL DEFAULT '0',
  KEY `Index 1` (`NIINPROCUREMENT_ID`),
  KEY `Index 2` (`NIIN_ID`)
) ENGINE=MyISAM DEFAULT CHARSET=latin1;

CREATE TABLE IF NOT EXISTS `niins` (
  `NIINS_ID` int(10) NOT NULL AUTO_INCREMENT,
  `PARTNO` varchar(250) NOT NULL DEFAULT '',
  `DESCRIPTION` varchar(255) NOT NULL,
  `NSN` varchar(255) NOT NULL,
  KEY `Index 1` (`NIINS_ID`)
) ENGINE=MyISAM DEFAULT CHARSET=latin1;

CREATE TABLE IF NOT EXISTS `niinxref` (
  `NIINXREF_ID` int(10) NOT NULL AUTO_INCREMENT,
  `NIIN_ID` int(10) NOT NULL DEFAULT '0',
  `REFPN` varchar(20) NOT NULL DEFAULT '0',
  `CAGECD` varchar(20) NOT NULL DEFAULT '0',
  `STAT` varchar(20) NOT NULL DEFAULT '0',
  `RNCC` varchar(20) NOT NULL DEFAULT '0',
  `RNVC` varchar(20) NOT NULL DEFAULT '0',
  `DAC` varchar(20) NOT NULL DEFAULT '0',
  `RNAAC` varchar(20) NOT NULL DEFAULT '0',
  `RNFC` varchar(20) NOT NULL DEFAULT '0',
  `RNSC` varchar(20) NOT NULL DEFAULT '0',
  `RNJC` varchar(20) NOT NULL DEFAULT '0',
  `SADC` varchar(20) NOT NULL DEFAULT '0',
  `HCC` varchar(20) NOT NULL DEFAULT '0',
  `MSDS` varchar(20) NOT NULL DEFAULT '0',
  KEY `Index 1` (`NIINXREF_ID`),
  KEY `Index 2` (`NIIN_ID`)
) ENGINE=MyISAM DEFAULT CHARSET=latin1;

Open in new window

0
Comment
Question by:EddieShipman
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
1 Comment
 
LVL 3

Accepted Solution

by:
SuchetaL earned 500 total points
ID: 33643703
Hi Eddie,
I need to only update values when a record is trying to be inserted if it is still in the table.
How do you decide that this is a repeated record? Other than the auto inc ID's there must be something that you don't want repeated. For the first table in your example "niin" - assume you don't want the NSN_NUMBER & ITEMNAME repeated. So add it as a Unique Index,
If you specify ON DUPLICATE KEY UPDATE, and a row is inserted that would cause a duplicate value in a UNIQUE index or PRIMARY KEY, an UPDATE of the old row is performed.
 In case you want to check with the last inserted record for the auto incremented ID - you can do the following
// Your table has cols - id, a, b, c - then
INSERT INTO table (a,b,c) VALUES (1,2,3)
  ON DUPLICATE KEY UPDATE id=LAST_INSERT_ID(id), c=3;

Hope that helps
Sucheta
0

Featured Post

Get 15 Days FREE Full-Featured Trial

Benefit from a mission critical IT monitoring with Monitis Premium or get it FREE for your entry level monitoring needs.
-Over 200,000 users
-More than 300,000 websites monitored
-Used in 197 countries
-Recommended by 98% of users

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

As a database administrator, you may need to audit your table(s) to determine whether the data types are optimal for your real-world data needs.  This Article is intended to be a resource for such a task. Preface The other day, I was involved …
This post looks at MongoDB and MySQL, and covers high-level MongoDB strengths, weaknesses, features, and uses from the perspective of an SQL user.
In this video, viewers will be given step by step instructions on adjusting mouse, pointer and cursor visibility in Microsoft Windows 10. The video seeks to educate those who are struggling with the new Windows 10 Graphical User Interface. Change Cu…
NetCrunch network monitor is a highly extensive platform for network monitoring and alert generation. In this video you'll see a live demo of NetCrunch with most notable features explained in a walk-through manner. You'll also get to know the philos…

627 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question