The CHAR_LENGTH function in MySQL returns the number of characters in a string. It is useful for analyzing the length of text data.

Examples with Tamil Kings

1. Getting the Length of the King’s Name

SELECT king_name, CHAR_LENGTH(king_name) AS name_length FROM tamil_kings_auto_increment;

2. Using CHAR_LENGTH with a Literal String

SELECT CHAR_LENGTH('Raja Raja Chola') AS string_length;

Best Practices

• Use CHAR_LENGTH to determine the size of text data before storing or processing it.
• Remember that CHAR_LENGTH counts characters, not bytes, making it suitable for multibyte character sets.

Key Takeaways

• The CHAR_LENGTH function returns the number of characters in a string.
• It is useful for text analysis and formatting.