after create permission set , when try to assign user , it asking create new users ,,  but i want to assigne exiting user , what i do ?

ple tell me if u know /..............thank u 

In my org 10,000 users are there ,  every day i have to change 300 user on single permission set  , is any posible to do this dynmically ?  

thank u...

One profile Can have multiple Record types?    If yes  How ?

Thank u......

two users have same profile and same role and same permission   but  how can assign two different page layout to both users  ?

thank u ......

how many types of price books is in sfdc ?

thank u ...

i want to Add Account Standard object as a Tab On VF page , but tab name visible as "Create Employee Account" , on vf page how to change that name  ?

thnau frinds .......

Set Tracking History can not maintaine the old ans new values , to maintain the old and new values and user name etc ... what i have to do ?

ple if  u konw , tel me how  do this ............ thank u .

Set History Tracking   ?

set history tracking only for standard  object  or  custom  object also ?

if custom objects also where it is to set ?

thank u ..

Delete Fields how to know ?  

How to know deleted fields and who (user) deleted it's ?

thank u.

can deploy any component from developer sandbox ? 

and 

there any major diffeernce between developer pro and  full copy sandbox ?   (with out memrory) 

thank u ....

 custom object access  problem ?  

one user not  have access permission  on one Custom Object , how can i give access to that use ?

if u know ple send  me   thank u.

How to know view state size ?

thank u .

how to stop Trigger execution , when insert the records by using import wizard and data loader ?

ple tell me if u know .   thank u .

Task ,event , Activity objects ?

1. what is Relation among these objects  ?

2. what is use of each  objects ?

thank u .

which Tag will automatically  execute when VF page loaded  ?

How to debug VisualForce page ?

( which component execute first or second like that  )

 tel me if know 

thank u .

<apex:actionfunction>  ,  <apex:commandbutton>

these two componets are invoke the controller mathods , waht is major difference between these two.

thank u .

curl https://ap1.salesforce.com/services/data/v29.0/sobjects/Account/ -H "Authorization: Bearer token -H "Content-Type: application/json" -d @newaccount.json"


my doubts friends in the above REST API url.
1.what is indicate "-H" ?
2.what is "Bearer taken" ?
3.what is "-d" important here ?
4."newaccount.json" where i have to create this file ?
 
  ple tel me , if u know .. thank u 

in Visualforce page one button is there , when button click page will be display as a PPT ?  how we can do this 

if u know , ple tel  me              

                               thanu in advancce .

which Tag will automatically  execute when VF page loaded  ?

how many types of price books is in sfdc ?

thank u ...

Set History Tracking   ?

set history tracking only for standard  object  or  custom  object also ?

if custom objects also where it is to set ?

thank u ..

Delete Fields how to know ?  

How to know deleted fields and who (user) deleted it's ?

thank u.

apex  and  Batch class's  execute syncronous or Asyncronous ?  

thank u .

what is Relation between case and Solutions ? 

thank u.

Which standard object having master-details Relation ship insalesforce .    ple tel me some of the object name 

thank u. 

sales cloud flow of execution ?

how to call @feature method call from trigger ? can any ple tell me 

1. is it possible to make a call from trigger ?

 if possible how give  two line code .

                                              thank u.

in one record 50 field is there ,in that first time i given values for 20 fields but second time i want to be remaining 30 fields with out distub first 20 field values . what i have to do ?

       thank u.