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risharisha 

how to create composite key

how to create composite key pls help me.

IspitaIspita
Hi Risaha,
What exactly is the issue faced by you?
Are you trying to to define a composite key on a salesforce object.
In salesforce one cannot define composite keys as one can define in oracle or MsSQL but you can provide "Unique and Required" attribute to one column and required attrinute on other columns and then write triggers or validation rule to make them behave as a composite key.
Does this answer your query , if you do let me know I can give other suggestions,
Thanks and regards,
risharisha

Accually without  use of triggers and validation rules i need to create composite key by use of concatenate 2 fields.can u help me to concatenate 2 fileds into 1.
IspitaIspita

Though there is no direct method of creating composite Key in SFDc but you can use a formula field which concatenates 2 fields which are your candidate keys.
IspitaIspita
Or you can create a linked object which has the 2 leys as master detail relationship, do you think it will solve your problem?
risharisha

ya it is has relationship
risharisha

i got a error     "Compile Error: Initial term of field expression must be a concrete SObject: LIST<InsAmount__c> at line 366 column 29"     by above code.pls help me

 

  List<InsAmount__c> premiumList = [SELECT Id, ProductMaster__r.ProductId__c,
                                            PlanMaster__r.PlanCd__c , GenderName__c, Age__c,
                                            YearlyPremName__c, ResidenceName__c, PetName__c,
                                            DogTypeName__c, CatTypeName__c, OthersName__c,
                                            DaysName__c, TravelPurposeName__c, TravelAreaName__c,
                                            TravelDays__c, PetAge__c, KidsAge__c
                                            FROM InsAmount__c
                                            WHERE ProductMaster__r.ProductId__c IN :productIdList
                                            AND PlanMaster__r.PlanCd__c IN :planCodeList];
                                            
          // for (Integer nIdx = 0; nIdx < planCodeList.size(); nIdx++) {
                
            wrapList = new List<productIdPlanCodeWrapper>();
            for(Integer i=0; i<productIdList.size(); i++){
                wrapList.add(new productIdPlanCodeWrapper(productIdList[i],planCodeList[i]));              
            
            //error in this line
            String prodplan=premiumList.ProductMaster__r.ProductId__c + premiumList.PlanMaster__r.PlanCd__c;
            Map<String,productIdPlanCodeWrapper> mapProd = new Map<String,productIdPlanCodeWrapper>();
            for(Integer nPlan=0; nPlan<productPlanList.size(); nPlan++){
            mapProd.put(prodplan,wrapList[nPlan]);
               }
Mak OneMak One
premiumList[i]