Shulou(Shulou.com)05/31 Report--

Today, I will talk to you about how to use the length () and hengthb () functions to calculate the string length in oracle. Many people may not know much about it. In order to make you understand better, the editor has summarized the following for you. I hope you can get something according to this article.

Lengthb (string) calculates the length of bytes occupied by string: returns the length of the string in bytes

Length (string) calculates the character length occupied by string: returns the length of the string in characters

For single-byte characters, LENGTHB and LENGTH are the same.

For example, you can use length ('string') = lengthb (' string') to determine whether the string contains Chinese.

Note:

The number of bytes of a Chinese character in the Oracle database is related to the character set of the database. When UTF8, the length is three.

Select lengthb (gone with the Wind) from dual can query the number of bytes of Chinese characters in the Oracle database

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