Retrieve table name from query result (sql)
I'm performing a database query via the db_query() function; I can perfectly obtain results and navigate through them, however I can't find an easy way to obtain the table name to which each result item belong. Am I overlooking something simple?
Thanks,
Daniele
Does this help?
http://www.sqlite.org/faq.html#q7
Cheers
Hi Tim, thanks for answering so quickly and sorry for my huge delay. Thanks for the link. I understand that I can query the table names from the sqlite_master, however I still don't see how I can retrieve the table name from the query result.
I'm probably missing something very obvious. I'm just doing
err = db_query(x->d_db, &result, query_buffer);
long numrecords = db_result_numrecords(result);
for (i=0; i
And then I would like to know which is the table whence the results come from. Is there any way I can do this, assuming I have no control on the query_buffer?
Thanks,
Daniele
I see... I did not fully understand that you were wanting the table for an unknown query.
It seems like there could be some SQLite hack, but if so I do not know it off the top of my head. Or perhaps it is possible to parse the query with a regular expression or other parser to ascertain the information from the query itself?
Sorry to be of little help in this regard...
Thanks, Tim!
Hi Tim,
on the other hand maybe you can help me out with this other issue:
I have my object opening an SQLite database named, say, x->d_name = "foo", via
db_close(&x->d_db);
db_open(x->d_name, NULL, &x->d_db);
Then I have another copy of the object which I need to share the same database. However, the database allocated by db_open (called from my other object) is a different one, even if x->d_name is the same one. Am it correct? How can I share the database across different instances of my object? Am I supposed to put the x->d_db structure inside the l_thing field of the "foo" symbol?
Thanks a lot,
Daniele