I\'m trying to get an id from a companies table where the id is not yet in the crawlLog table.Then I need to insert that companyId into the crawlLog table.
I am running many instances of a webcrawler in parallel. Each crawler selects a domain from a table, inserts that url and a start time into a log table, and then starts crawling the domain.
The following query: DELETE FROM CO05IN.ININVPRC WHERE IPPART IN (SELECT IPPART FROM CO05IN.ININVPRC left join CO05IN.ININVMST on IPPART = IMP开发者_StackOverflow社区ART where IMPART is null);
I have 2 tables (MySQL) data_details accounts_invoices Ideally every data_details should have an accounts_invoices id. (data_details has a foreign key with accounts_invoices\'s primary key)
I have got MySQL error \"You can\'t specify target table \'tasks\' for update in FROM clause\" running the followi开发者_如何学Cng query:
So, what I am trying to do is insert a row of NONE, $country for every country that exists in the table.
Why this query doesn\'t work? DELETE FROM recent_edits WHERE track开发者_C百科id NOT IN (SELECT DISTINCT history.trackid
This is my request > DELETE FROM A WHERE id in (Select > id From ALeft Join B on开发者_Python百科 A.id=B.id
I\'m having trouble with updating final_id by selecting the highest final_id already in table and adding +1.
This works in a table where doc_id is the primary key: select count(*)+1 from doctor where exp > (select exp from doctor where doc_id=\'001\');
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