During extracting data and clues with DataScraper, a suitable data schema might not be found for a page. In this case, one more data schema should be defined for the theme. This chapter supplements scenario 2#phase 2. The following steps are taken to define multiple data schemas for theme ComList_mic_en:
- Log onto MySQL server via command line or PHPMyAdmin;
- Submit the command "select * from SPIDERCLUE where theme='ComList_mic_en' and status='unknownschema'";
- Take down the URLs of the clues in status of unknownschema
- Load the page into MetaStudio to define one more data schema.
- Log onto MySQL again and submit "update SPIDERCLUE set status='start' where ...";
- Extract data and clues again with DataScraper.