如何使用 MySQL LTRIM() 和 RTRIM() 函数同时删除字符串中的前导空格和尾随空格？

For removing both leading and trailing spaces at once from a string by using LTRIM() and RTRIM() functions, we must have to use one function as an argument for other function. In other words, we must have to pass either LTRIM() function as an argument of RTIM() function or vice versa. It can be understood from the following example −

Example

Suppose we have a table ‘test_trim’ having a column ‘Name’ containing the values with leading and trailing spaces both −

mysql> Select * from test_trim; +---------------+ | Name | +---------------+ | Gaurav | | Rahul | | Aarav | +---------------+ 3 rows in set (0.00 sec)登录后复制

mysql> Select Name, LTRIM(RTRIM(Name))AS 'Name Without Spaces' from test_trim; +---------------+---------------------+ | Name | Name Without Spaces | +---------------+---------------------+ | Gaurav | Gaurav | | Rahul | Rahul | | Aarav | Aarav | +---------------+---------------------+ 3 rows in set (0.00 sec) mysql> Select Name, RTRIM(LTRIM(Name))AS 'Name Without Spaces' from test_trim; +---------------+---------------------+ | Name | Name Without Spaces | +---------------+---------------------+ | Gaurav | Gaurav | | Rahul | Rahul | | Aarav | Aarav | +---------------+---------------------+ 3 rows in set (0.00 sec)登录后复制