Flash cards
Review the key moves
1/4
Core idea
What is the main idea behind MySQL SIGN() 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.
___ SIGN(255.5);3Order
Put the learning moves in the order that makes the concept easiest to apply.
The SIGN() function returns the sign of a number.
Definition and Usage
MySQL SIGN() Function
Example
SELECT SIGN(255.5);Definition and Usage
The SIGN() function returns the sign of a number.
This function will return one of the following:
- If number > 0, it returns 1
- If number = 0, it returns 0
- If number < 0, it returns -1
Syntax
SIGN(
number
)Parameter Values
| Parameter | Description |
|---|---|
| number | Required. The number to return the sign for |
Technical Details
| Works in: | From MySQL 4.0 |
|---|