| --- |
| { |
| "title": "EXTRACT_URL_PARAMETER", |
| "language": "en" |
| } |
| --- |
| |
| ## extract_url_parameter |
| ### description |
| #### Syntax |
| |
| `VARCHAR extract_url_parameter(VARCHAR url, VARCHAR name)` |
| |
| |
| Returns the value of the "name" parameter in the URL, if present. Otherwise an empty string. |
| If there are many parameters with this name, the first occurrence is returned. |
| This function works assuming that the parameter name is encoded in the URL exactly as it was in the passed parameter. |
| |
| ``` |
| mysql> SELECT extract_url_parameter ("http://doris.apache.org?k1=aa&k2=bb&test=cc#999", "k2"); |
| +--------------------------------------------------------------------------------+ |
| | extract_url_parameter('http://doris.apache.org?k1=aa&k2=bb&test=cc#999', 'k2') | |
| +--------------------------------------------------------------------------------+ |
| | bb | |
| +--------------------------------------------------------------------------------+ |
| ``` |
| |
| If you want to get other part of URL, you can use [parse_url](../string-functions/parse-url). |
| |
| ### keywords |
| EXTRACT URL PARAMETER |
