In database application, any field does not contain any values can be recognized by:
Nothing value.
Null value.
Error value.
Empty value.
Correct Answer :
B. Null value.
Related Questions
Visual Basic produce:
3 types of executable code.
2 types of executable code.
4 types of executable code
none of the above.
Flag property is used to adjust the function of each common dialog box
True
False
which should be included when an application is used without any forms
subroutines
function
main
sub-main
Print' statement can be used to print any statement on the screen.
True
False
In visual basic 'Break' statement could be used along with "Select Case"
True
False
Delete method of the recordset of Data Control or Data Access Object is delete the record which is pointed out by the record pointer.
True
False
Dialog title property is used to change the title of any dialog box
True
False
Isnull(), IsEmpty() determines weather any variable has been initialize or not
True
False
Instr$(text1.text,"visual") will returns :
No. of times the string "visual" is present in the string in text1.text.
It puts the control where it finds the text "visual" in the string given in text1.text.
First occurrence of the text "visual" within the string given in text1.text
None of the above.
when using 'do until-loop' statement as stated below
I=10
Do until I>5
Print I
I=I+1
Loop
This statement will print
it will generate a run time error
no output will be shown
10 11 12 13 14 15
none of the above
The default startup object can not be changed in a project
True
False
If the user wants to select the multiple files from file open and filesave dialog boxes then the flag must be set to
cdlOFNMultiselsectAllow
cdlOFNAllowMultiselect
It is not possible to select more than one file at a time
None
The title of the dialog box can be changed.
True
False
Activate event is called before load event
True
False
To get the property window in visual basic you have to press
F6
F3
F4
F5
Terminate is a valid event in form operation
True
False
The extension name of a Visual Basic form is _____________.
.frm
.txt
.prj
.vbp
RichTextBox1.BulletIndent=5 ; what will be the effect of this code if used in any program
It will set the bulleted indentation by the specified value
It will create a list of bullet of 5 items
All of the above
In timer control _____________ is the most important property.
Interval.
Front
backcolor
Data1.Recordset.FindFirst "State=NY"
The above code will find the record in a given database
Find the first record in the given database
Find the first record in the given database in which the state is NY.
The above command will find a record very fast where the state is NY
None of the above
The maximum length of a variable is _____________ characters.
255
254
256
257
Function Add(Num1 as integer, Num2 as integer) as integer
Add=Num1+Num2
Num1=0
Num2=0
End function
This body is an example of calling up a function by:
By optional argument.
By value.
By reference.
IsDate() function returns true if its argument is a valid date and time
True
False
CommonDialog1.ShowOpen
Filename1=CommonDialog1.Filename
The above code will
Set the filename1 by the selected filename from the common dialog contol.
First displays the open dialog box and let the user select any file from any
location and then set the filename1 by the selected filename.
Both are true.
It is possible to change the password character property of text box control at run time.
True
False
_____________ property of any control cannot change at run time.
color
name
caption
Min and Max property can be used with Font common dialog box to determine
To controlling dialog box size
The minimum and maximum size displayed in the size list
None of the above
cell alignment property can be used to align the cells with different alignment style
True
False
In visual basic you can draw something in
Picture box control.
Image control.
Shape control.
In runtime it is not possible to change the form size.
True
False