Why am I unable to query my sqlite db?
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There are ten answers to this question.
Best solution
I am using C# with .NET 4.5. I am making a scraper which collects specific data. Each time a value is scraped, I need to make sure it hasn't already been added to the SQLite db. To do this, I am making a call each time a value is scraped to query against the db to check if it contains the value, and if not, I make another call to insert the value into the db. Since I am scraping multiple values per second, this gets to be very IO-intensive, with constant calls to the db. My question is, is there...
Answer:
I see three approaches: Use INSERT OR IGNORE, which will reject an entry if it is already present (based...
blizz at Stack Overflow Mark as irrelevant Undo
Other solutions
I want to create a SQLite DB using the jdbc driver sqlitejdbc-v056.jar. When I try to run the create query of a table, it returns me the error: java.sql.SQLException: database is locked. SQLite has five locking states: Unlocked, Shared, Reserved, Pending...
Answer:
Default is normal; for exclusive use PRAGMA [db_name.]locking_mode = EXCLUSIVE; The part between [ and...
Klaas V Innocentisart at Quora Mark as irrelevant Undo
sqlite, django, python, database
Answer:
if you call 'sqlite3 test.db' you find the test.db file in your current path :) have a look in the sqlite...
Christian Assing at Quora Mark as irrelevant Undo
When I switch to mysql everything will work fine as expected .But when I change db to sqlite it throws me errors.
Answer:
Are you using South? In the more recent versions it runs migrations during tests unless explicitly disabled...
Seán Hayes at Quora Mark as irrelevant Undo
I'm making kind of "popular bookmarks" with RoR. I wrote query below. Bookmark.select("*, count('item_id') AS cnt").group("item_id").order("cnt DESC").limit(60) It works on local sqlite3 server but doesn't work...
Answer:
Using the same database technology in ideally the exact same version is preferable over testing that...
Thomas Klemm at Quora Mark as irrelevant Undo
Hello, I am in a bit of corner here - I have a three tables in my DB. users(ID, login, fname, lname); relation(ID, userA_ID, userB_ID) and a temp table temp(ID, loginA, loginB). Temp table contains relation between two users in a manner of their logins...
Answer:
insert relation (UserA_ID, Userb_ID) select A.ID, B.ID from temp T inner join Users A on A.login = T...
Mantas D at Yahoo! Answers Mark as irrelevant Undo
I have a continuous integration system setup for one of my pet projects. I am using MS-SQLServer as db. For each build I dont want to connect to same MSSQLServer and interact with it, as its taking really long time. I know that Tests running on SQLite...
Sethu Srinivasan at Quora Mark as irrelevant Undo
Hi, I am Developing a software project in c#.net and using postgresql as database.i am fairly new to the postgres db and I am trying to connect to the DB thru c#.net code (i m using VS 2005 as IDE). I have tried all the 3 DB drivers (OLEDB,ODBC,Npgsql...
Answer:
Make sure that you have all of the applicable drivers and framework installed. If you are using VS2...
Yahoo! Answers Mark as irrelevant Undo
I have Cassandra DB similar to this: key | name | client 1 A C1 2 B C2 3 C C1 I access to my cassandra db with Pyhton (pycassa). Is there a way to query the database in order to get the clients with...
Answer:
No, there is no built-in way of doing that. You would need to keep track of occurrences manually using...
Drew Kutcharian at Quora Mark as irrelevant Undo
My db has SchoolTable that shows all accounts, MainScreen to select sales rep from a combo box (SalesRep from SchoolTable) and have query results populate a sub-form (InputForm). I have Search_Rep query ([Forms]![MainScreen]![Combo0]) set to run On Change...
Yahoo! Answers Mark as irrelevant Undo
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