3i Infotech Placement: Sample Questions 257 - 257 of 1245

Glide to success with Doorsteptutor material for competitive exams : get questions, notes, tests, video lectures and more- for all subjects of your exam.

Question 257

Statement True-False▾

A CONTROL BLOCK can sometimes refer to a BASETABLE?

Choices

Choice (4)

a.

False

b.

True

c.

None of the above

d.

All of the above

Edit

Answer

a.

Explanation

Given Creating a Control Block

CONTROL BLOCK

  • Basically control block is not related to table.
  • Item in a control block do not relate to table columns.
  • It contain button, text, item, check boxes.
  • Below Creates a Control Block

    1. Select Tools ⇾ New Block. Or, in the Object Navigator, position the cursor on or within the Blocks node and choose Navigator ⇾ Create.
    The New Block window appears.
    1. Leave the Base Table option set to indicate creation of a control block, not a base table block.
    2. In the Block Name field, enter a name for the block.
    3. (Optional) Set the sequence ID option to specify the position of the new block in the default block navigation sequence. Because this is a control block, none of the other options in the New Block window apply.
    4. Choose OK to create the control block- new control block does not yet contain any items. We can create items in an existing block in the Object Navigator or in the Layout Editor
  • Base Table

  • Base table stores information about the associated database.
  • Only oracle should be writing to and reading this table.
  • Users rarely access this directly because tables are normalized.
  • Most of the data is stored in a cryptic format.