question 3
Which three tasks can be preformed using regular expression support in Oracle Database 10g?
- A. It can be used to concatenate two strings.
- B. It can be used to find out the total length of the string.
- C. It can be used for string manipulation and searching operations.
- D. It can be used to format the output for a column or expression having string data.
- E. It can be used to find and replace operations for a column or expression having string data.
correct answer CDE
在oracle 10g中，以下哪三项功能是可以通过正则表达式实现的？
- A. 它可以用来连接两个字符创。
- B. 它可以得到字符串的总长度。
- C. 它可以用于字符串操作和查找操作。
- D. 它可以格式化列或者字符串表达式输出格式。
- E. 它可以用来查找和替换列或字符串表达式。