Flash cards
Review the key moves
1/4
Core idea
What is the main idea behind MS Access IsNull() Function?
Lesson checks
Practice each idea before moving on
Short Mimo-style checks built from this lesson's code, terms, and sequence.
1Quick choice
Which statement best captures the main point of this lesson?
2Fill blank
Complete the missing token from the example code.
___ IsNull(null);3Order
Put the learning moves in the order that makes the concept easiest to apply.
The IsNull() function checks whether an expression contains Null (no data).
Definition and Usage
MS Access IsNull() Function
Example
SELECT IsNull(null);Definition and Usage
The IsNull() function checks whether an expression contains Null (no data).
This function returns a Boolean value. TRUE (-1) indicates that the expression is a Null value, and FALSE (0) indicates that the expression is not a Null value.
Syntax
IsNull(
expression
)Parameter Values
| Parameter | Description |
|---|---|
| expression | Required. The value to test |
Technical Details
| Works in: | From Access 2000 |
|---|