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minnuchcloud@gmail.comminnuchcloud@gmail.com 

field update using batch apex

i had 2000000 records

contains field name city

and state ,state is same for all records

city=1

city=2

city=3

city=4

city=5

city=6

city=7

city=8

and

state =AP

 

 

so i want field update for state 'field'

for contain city names

city=1

city=2

city=3

city=4

 

state =TN

how to write batch class for this and execution method

pl send me

 

nagalakshminagalakshmi

Hi,

 

Use this link for batch apex class.

 

http://corycowgill.blogspot.in/2010/12/leveraging-scheduled-apex-to-link-batch.html

 

Thanks,

Lakshmi
Mohith Kumar ShrivastavaMohith Kumar Shrivastava

Lakshmi please note now the second batch can be called in finish method of first batch .Thanks
Mohith Kumar ShrivastavaMohith Kumar Shrivastava

Here are few good resources  on how to write batches in sfdc

 

http://www.salesforce.com/us/developer/docs/apexcode/Content/apex_batch_interface.htm

 

http://salesforcesource.blogspot.in/2010/02/utilizing-power-of-batch-apex-and-async.html

 

http://www.forcelabs.net/2011/10/how-to-use-batch-apex-in-salesforce.html

 

http://salesforcetrekbin.blogspot.in/2010/04/how-to-use-batch-apex-in-salesforce.html

 

Hope this will help to come up with your first batch.Thanks
minnuchcloud@gmail.comminnuchcloud@gmail.com

 

  my question is

 

i had 200000 records

all records had   in state__c field  'AP'

and  in city__c field had  12 district  like


HYD

NAL

NIZ

VAR

KAM

GUN

VIJ

VIZ

PRA

NEL

CHI

KAD

 

NOW

I WANT FIELD UPDATE FOR ONLY 5 CITIES  state__C 'TEL'

LIKE

 

HYD

var

kam

nal

niz

 

i want chaing the state name for only 5 cities may be 60000 records like tha

so pl send me batch apes class

and developerconsole query also

 

 
minnuchcloud@gmail.comminnuchcloud@gmail.com

i want chainge the state__c  field contain name is 'AP''

it updates in to 'TN'