This example will replace the fifth character 'O' in 'TechOnTheNet' because it is replacing the second occurrence of a vowel a, e, i, o, or u in the string. This example will replace the ninth character 'e' in 'TechOnTheNet' because it is replacing the third occurrence of a vowel a, e, i, o, or u in the string.
While using this site, you agree to have read and accepted our Terms of Service and Privacy Policy. Please re-enable javascript in your browser settings. Matches zero or one occurrence. Matches any character except NULL. Used like an "OR" to specify more than one alternative. Used to group expressions as a subexpression. Matches the preceding pattern zero or more occurrences. Matches the preceding pattern one or more occurrences. Matches the preceding pattern zero or one occurrence.
Matches the preceding pattern n times. Matches the preceding pattern at least n times. Matches the preceding pattern at least n times, but not more than m times. It is the position in string where the search will start. For more information on backreference expressions, please refer to the notes to "Oracle Regular Expression Support" , Table C If you specify a positive integer n , then Oracle replaces the n th occurrence.
If you omit this parameter, the period does not match the newline character. If you omit this parameter, Oracle treats the source string as a single line. If you specify multiple contradictory values, Oracle uses the last value. Asked 8 years, 7 months ago. Active 8 years, 7 months ago. Viewed 6k times. Part of the replacement within the update is based on the contents of another table, deviceport. Any clues? Improve this question. Add a comment. Active Oldest Votes. Improve this answer. Egor Skriptunoff Egor Skriptunoff What exactly you did not understand?
Sign up or log in Sign up using Google.
0コメント