Interview Questions - 6
1. What is difference between PAGEBLOCK TABLE and a DATA TABLE?
A: <apex:pageBlockTable> :
A list of data displayed as a table within either an <apex:pageBlock> or <apex:pageBlockSection> component, similar to a related list or list view in a standard Salesforce page.
<apex:dataTable> : It will also display the data as a table, but look and feel will be different.
2. Can we make a field mandatory in a Visualforce Page?
A: Yes, we can make the field required by using the "Required" attribute.
3. What is Batch Apex? When we go for the batch Apex?
A: Batch Apex is used to build complex, long-running processes on the force.com platform.
We can go for the batch apex when we face any Governor Limits.
4. What is Pagination?
A: Pagination is the getting Previous and Next Links to move into previous and next pages.
5. How can we avoid the Governor Limitations?
A: By using Batch Apex.
6. What is Developer Console or Anonymous Block?
A: An anonymous Block is Apex code that does not get stored in the metadata, buit that can be compiled and executed using the Developer Console.
7. What is the difference between Task and Event?
A: Task: Represents a business activity such as making a phone call or other "to-do" items. in the user interface, task and Event records are collectively referred to as activity.
Event: Represents and executed using the Developer console.
8. What are the Log files in the Data Loader?
A: log files are error and success files that are generated automatically in data loader for the following operations:
Insert, Update, Upsert, Delete.
Note: The Log files cannot be generated automatically for the "Export" operation in Data loader.
9. What is the format of the file identified in DATALOADER?
A: The Data Loader will support only .csv file because of its size less than .xlsx file.
A: <apex:pageBlockTable> :
A list of data displayed as a table within either an <apex:pageBlock> or <apex:pageBlockSection> component, similar to a related list or list view in a standard Salesforce page.
<apex:dataTable> : It will also display the data as a table, but look and feel will be different.
2. Can we make a field mandatory in a Visualforce Page?
A: Yes, we can make the field required by using the "Required" attribute.
3. What is Batch Apex? When we go for the batch Apex?
A: Batch Apex is used to build complex, long-running processes on the force.com platform.
We can go for the batch apex when we face any Governor Limits.
4. What is Pagination?
A: Pagination is the getting Previous and Next Links to move into previous and next pages.
5. How can we avoid the Governor Limitations?
A: By using Batch Apex.
6. What is Developer Console or Anonymous Block?
A: An anonymous Block is Apex code that does not get stored in the metadata, buit that can be compiled and executed using the Developer Console.
7. What is the difference between Task and Event?
A: Task: Represents a business activity such as making a phone call or other "to-do" items. in the user interface, task and Event records are collectively referred to as activity.
Event: Represents and executed using the Developer console.
8. What are the Log files in the Data Loader?
A: log files are error and success files that are generated automatically in data loader for the following operations:
Insert, Update, Upsert, Delete.
Note: The Log files cannot be generated automatically for the "Export" operation in Data loader.
9. What is the format of the file identified in DATALOADER?
A: The Data Loader will support only .csv file because of its size less than .xlsx file.
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