PLSQL RTRIM 函数用于删除字符串右侧的所有指定字符。PLSQL RTRIM 函数接受两个参数,即输入字符串和修剪字符串。 * If the user does ...
Is an expression of character data. character_expression can be a constant, variable, or column of either character or binary data. The following example takes a string of characters that has spaces ...