19.) What is TAB in Salesforce?
Tab is a user interface component to user creates to display custom object data. There are three type of tabs.
- Custom Tabs
- Visual force Tabs
- Web Tabs
20.) What is Difference between SOQL and SOSL?
SOQL(Salesforce Object Query Language)
- Using SOQL we can Search only on one object at a time.
- We can query on all fields of any datatype.
- We can use SOQL in Triggers and classes.
- We can perform DML operation on query results.
- Using SOSL we can search on many objects at a time.
- We can query only on fields whose data type is text,phone and Email.
- We can use in calsses but not in Triggers.
- We cannot perform DML operation on search result
21.) How to call java script using Static Resource in Visual Force page?
Add java script file in Static Resource setup -> develop -> Static Resources -> click on ‘New’ -> Name: filename and add file from local desktop and save.
We can use that file as follows in Visual Force page
22.) How can I create Many – to – Many relationship?
Lookup and Master detail relationships are one to many relationships. We can create many – to – Many relationship by using junction object. Junction object is a custom object with two master detail relationships.
23.) How many ways we can made field is required?
- While creation of field
- Validation rules
- Page Layout level
24.) What is manual sharing?
Manual sharing is to share a record to a particular user manually. Go to detail page of record and click on manual sharing button and assign that record to other user with Read or Read/Write access. Manual Sharing button enables only when OWD is private to that object.