What is the string length function in sql

The function in SQL to determine the length of a string is LEN(), which is used to count the number of characters in a string (excluding spaces). Other similar functions include: 2. CHAR_LENGTH(): case-sensitive; 3. LENGTH(): only available in MySQL.

String length function in SQL

Used in SQL (Structured Query Language) to determine the length of a string The function is LEN(). It can be used to get the number of characters in a string.

Syntax:

<code>LEN(string)</code>

Parameters:

• string: To determine its length String.

Return value:

• The number of characters in the string (excluding spaces).

Example:

The following query uses the LEN() function to get the length of the string "Hello World":

<code>SELECT LEN('Hello World');</code>

This will return Result:

<code>11</code>

Other notes:

• LEN() function is valid for both Unicode strings and non-Unicode strings.
• For an empty string, the LEN() function returns 0.
• LEN() function is not case sensitive.

Similar functions:

There are other similar string functions in SQL that can be used to determine the string length:

• CHAR_LENGTH(): Similar to the LEN() function, but it is case-sensitive.
• LENGTH(): Same as the LEN() function, but only for MySQL.

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