By using Schema we can get any Object field API names and labels also.

Schema.getGlobalDescribe().get(selectedObject).getDescribe().fields.getMap();

From Above method we get A Map. In this map Keys are API names of field for selectedObject.

U can use below for Accounts API Names

// get the Account Info

Schema.DescribeSObjectResult r =…[Read more]

By using Schema we can get any Object field API names and labels also.

Schema.getGlobalDescribe().get(selectedObject).getDescribe().fields.getMap();

From Above method we get A Map. In this map Keys are API names of field for selectedObject.

Thank you Ajit Kumar,

U said “When we have to Update or Insert bulkdata in salesforce or we have to make web services callouts then we use the batch apex.”

Here Bulkdata means… How much?  We can Process bulkdata on Apex class … So  what are The Batch class have increased governor limits then apex classes?

Could give Brief Explanation?

Got it, It can be done by Lookup Filter .

ISBLANK() – return true if “TEXT filed” is empty

ISNULL() – return true if “Number filed” is empty

ISBLANK() – return true if “TEXT filed” is empty

ISNULL()-return true if “number filed” is empty