oracle 获取字符串长度
时间: 2023-10-19 11:28:15 浏览: 156
在Oracle数据库中,可以使用LENGTH函数来获取字符串的长度。该函数返回指定字符串的字符数,而不是字节数。因此,如果字符串包含中文字符,每个中文字符将被计算为一个字符。因此,LENGTH函数在判断字符串是否含有中文上是不准确的。而对于判断字符串是否含有中文,可以使用LENGTHB函数来获取字符串的字节数,如果字节数大于字符数,则说明字符串中包含中文字符。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
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