Flash cards
Review the key moves
1/4
Core idea
What is the main idea behind MySQL LEFT() 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.
___ LEFT("SQL Tutorial", 3) AS ExtractString;3Order
Put the learning moves in the order that makes the concept easiest to apply.
The LEFT() function extracts a number of characters from a string (starting from left).
Definition and Usage
MySQL LEFT() Function
Example
SELECT LEFT("SQL Tutorial", 3) AS ExtractString;Definition and Usage
The LEFT() function extracts a number of characters from a string (starting from left).
Tip
Also look at the RIGHT() function.
Syntax
LEFT(
string
,
number_of_chars
)Parameter Values
| Parameter | Description |
|---|---|
| string | Required. The string to extract from |
| number_of_chars | Required. The number of characters to extract. If this parameter is larger than the number of characters in string , this function will return string |
Technical Details
| Works in: | From MySQL 4.0 |
|---|