Flash cards
Review the key moves
1/4
Core idea
What is the main idea behind SQL Server LEN() 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.
___('ExampleSite.com');3Order
Put the learning moves in the order that makes the concept easiest to apply.
The LEN() function returns the length of a string.
Definition and Usage
SQL Server LEN() Function
Example
SELECT
LEN('ExampleSite.com');Definition and Usage
The LEN() function returns the length of a string.
Note
Trailing spaces at the end of the string is not included when calculating the length. However, leading spaces at the start of the string is included when calculating the length.
Tip
Also look at the DATALENGTH() function.
Syntax
LEN(
string
)Parameter Values
| Parameter | Description |
|---|---|
| string | Required. The string to return the length for. If string is NULL, it returns NULL |
Technical Details
| Works in: | SQL Server (starting with 2008), Azure SQL Database, Azure SQL Data Warehouse, Parallel Data Warehouse |
|---|