[sqlite] sqlite multithreading
Hi! Problem: 1 - I need some help using sqlite3 with multithreading. Here is an overview of present situation: - I am using sqlite 3.0.8 I have two threads (A B) working at the same time. Thread A is used to query database while thread B is being used for writing to the database. Everything works right if only thread B is running. But when thread A runs while thread B is still running an error occurs. The error is: #8220;library routine called out of sequence#8221;. But this error is not emitted always, 1 out of 3 times this operation completes successfully. No action is can be preformed on the database when the error occurs. It even not closes the database. Both threads are using same sqlite connection. I am using sources from sqlite-source-3_0_8.zip compiled (with #8211;DTHREADSAFE=1) as a sub-project inside my own project using kdevelop. (In the mean time I have come across the following in sqlite mailing list archive: - it could be the case that the same database connection is being used simultaneously by two or more threads. But I have seen some applications do this successfully with a single connection. ) Problem: 2 - I need some tips on how can I use sqlite inside my project using kdevelop (i.e. without using sqlite-source-3_0_8.zip). Thanks in advance Yogesh M Yahoo! India Matrimony: Find your life partner online Go to: http://yahoo.shaadi.com/india-matrimony
[sqlite] Problem creating TRIGGER
Hi! I am very new to sqlite. I am having problem creating a trigger. Here is the statement: - sqlite CREATE TRIGGER dat.on_master_insert INSERT ON dat.master_table FOR EACH ROW BEGIN INSERT INTO dat.url_stats(new.file_name, '0', '0', '1'); END; SQL error: near .: syntax error The problem is near new.file_name, as when I access the database through a C++ program while using master_table instead of dat.master_table, same error is emitted. What the statement intends to do is to insrt a record in url_stats table whenever a new row is added to master_table. I am using sqlite 3.0.8. Thanks in advance Yogesh M Chandigarh, India http://mylinuxapps.tripod.com
[sqlite] Problem creating TRIGGER
Hi! I am very new to sqlite. I am having problem creating a trigger. Here is the statement: - sqlite CREATE TRIGGER dat.on_master_insert INSERT ON dat.master_table FOR EACH ROW BEGIN INSERT INTO dat.url_stats(new.file_name, '0', '0', '1'); END; SQL error: near .: syntax error The problem is near new.file_name, as when I access the database through a C++ program while using master_table instead of dat.master_table, same error is emitted. What the statement intends to do is to insert a record in url_stats table whenever a new row is added to master_table. I am using sqlite 3.0.8. Thanks in advance Yogesh M Chandigarh, India http://mylinuxapps.tripod.com
[sqlite] A problem with the select statement
Hi! I am using sqlite 3.05 beta. I have created a table containing a field named 'title'. When I run the SQL Command : - select count(*) from master_table where title = title output is 885, i.e. count of all the rows in the table, whereas it should have returned the number of rows in which value of the field title is title (which is actually 10). Perhaps sqlite is comparing value of column named title with the column itself. Can somebody please help, Yogesh M Chandigarh, India http://mylinuxapps.tripod.com
