{"id":14373,"date":"2024-03-15T08:59:41","date_gmt":"2024-03-15T08:59:41","guid":{"rendered":"https:\/\/www.silicloud.com\/blog\/what-is-the-function-of-the-length-method-in-mysql\/"},"modified":"2025-08-06T07:52:24","modified_gmt":"2025-08-06T07:52:24","slug":"what-is-the-function-of-the-length-method-in-mysql","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/blog\/what-is-the-function-of-the-length-method-in-mysql\/","title":{"rendered":"MySQL LENGTH() Function Explained"},"content":{"rendered":"

The LENGTH() function in MySQL is used to retrieve the length of a string or binary data. It returns an integer representing the number of characters in the specified string or the number of bytes in the binary data.<\/p>\n

Grammar: Rules governing the structure of a language.<\/p>\n

LENGTH(str)\r\n<\/code><\/pre>\n
str is a string or binary data for which the length needs to be calculated.<\/p>\n
Original: “\u4ed6\u5bf9\u8fd9\u4e2a\u4e3b\u610f\u5f88\u611f\u5174\u8da3\u3002”
\nParaphrased: “He is very interested in this idea.”<\/p>\n
SELECT LENGTH('Hello World');\r\n<\/code><\/pre>\n
The output is 11 because the string ‘Hello World’ consists of 11 characters.<\/p>\n
SELECT LENGTH('\u4f60\u597d\u4e16\u754c');\r\n<\/code><\/pre>\n
The output is 6 because the string ‘\u4f60\u597d\u4e16\u754c’ is made up of 6 characters.<\/p>\n
SELECT LENGTH('abc123');\r\n<\/code><\/pre>\n
The output is 6 because the string ‘abc123’ is made up of 6 characters.<\/p>\n
Please note:<\/p>\n
    \n
  1. The LENGTH() function returns the number of characters for strings and the number of bytes for binary data.<\/li>\n
  2. When using UTF-8 encoding, one character may occupy multiple bytes, so the returned length may not be the same as the apparent number of characters.<\/li>\n<\/ol>\n","protected":false},"excerpt":{"rendered":"
    The LENGTH() function in MySQL is used to retrieve the length of a string or binary data. It returns an integer representing the number of characters in the specified string or the number of bytes in the binary data. Grammar: Rules governing the structure of a language. LENGTH(str) str is a string or binary data […]<\/p>\n","protected":false},"author":5,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_import_markdown_pro_load_document_selector":0,"_import_markdown_pro_submit_text_textarea":"","footnotes":""},"categories":[1],"tags":[947,19330,4425,19332,19331],"class_list":["post-14373","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-database-functions","tag-mysql-length-function","tag-mysql-string-functions","tag-mysql-tutorials","tag-sql-length"],"yoast_head":"\nMySQL LENGTH() Function Explained - Blog - Silicon Cloud<\/title>\n<meta name=\"description\" content=\"Learn how to use MySQL's LENGTH() function to measure string and binary data length. 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