函数的作用是:使用 UNICODE 完整字符返回指定字符串的长度。 PLSQL 中 LENGTHC 函数接受的 char 可以是任何数据类型，如 CHAR ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible resultsSome results have been hidden because they may be inaccessible to you
Show inaccessible results
Feedback