sqlite

问题 Below is the code I have tried on a test2.cpp I checked my database and found out no new record had been added. What actually went wrong in my statement? #include <iostream> #include <sqlite3.h> //g++ -o test2 test2.cpp -lsqlite3 using namespace std; int main() { int counter = 0; sqlite3 *db; sqlite3_stmt * stmt; string username = "panda"; string name = "Kungfu Panda"; string department = "normal"; string password = "hellopassword"; string sqlstatement = "INSERT INTO abe_account (" + username

问题 I'm trying to store arrays (or vectors) of data in a SQLite database but I'm having problems trying to find a decent way to do so. I found some other post on StackOverflow, that I can't seem to find anymore, which mentioned storing the data in a table like the following: CREATE TABLE array_of_points ( id integer NOT NULL, position integer NOT NULL, x integer NOT NULL, y integer NOT NULL, PRIMARY KEY (id, position) ); So to store all the data for a single array you would insert each item under

问题 I'm trying to store arrays (or vectors) of data in a SQLite database but I'm having problems trying to find a decent way to do so. I found some other post on StackOverflow, that I can't seem to find anymore, which mentioned storing the data in a table like the following: CREATE TABLE array_of_points ( id integer NOT NULL, position integer NOT NULL, x integer NOT NULL, y integer NOT NULL, PRIMARY KEY (id, position) ); So to store all the data for a single array you would insert each item under

问题 Is this even possible? All of the aritcles I have read state that an ADO wrapper is necessary, but the SQLite website implies that nothing other than their DLL is needed. IF it is possible, then I would expect there to be code examples out there. 回答1: Look here: http://www.sqlite.org/cvstrac/wiki?p=SqliteWrappers Specifically, search for ".NET Framework". One of there wrappers there: http://www.phpguru.org/static/SQLite.NET.html - this one does not use ADO, it's just an extremely lightweight

问题 Here is the exception: java.lang.RuntimeException: Unable to start activity ComponentInfo{spb.bridges/spb.bridges.Bridges}: android.database.sqlite.SQLiteException: unable to open database file at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2663) at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2679) at android.app.ActivityThread.access$2300(ActivityThread.java:125) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2033) at

问题 So im trying to implment user login for my a asp.net core application. Im following the microsoft tutorial here. I have two contexts, one called SchoolContext for saving all the school related models, and another context called ApplicationDbContext for the Account models. This is all being saved to a sqlite database. Everything works fine, up until I try to register a user to my context. When I try to register a user i get, cant find AspNetUsers table error. If I look in the database I don’t

问题 I'm trying to query an FTS table using SQLite.swift. Previously I have done it in Android. The essence of what I am trying to do is this: SELECT * FROM t2 WHERE id IN (SELECT docid FROM fts_table WHERE col_text MATCH 'something') From the SQLite.swift documentation I see the IN condition can be written like this: users.filter([1, 2, 3, 4, 5].contains(id)) // SELECT * FROM "users" WHERE ("id" IN (1, 2, 3, 4, 5)) And virtual tables can be queried like this: let wonderfulEmails = emails.match(

问题 I'm trying to query an FTS table using SQLite.swift. Previously I have done it in Android. The essence of what I am trying to do is this: SELECT * FROM t2 WHERE id IN (SELECT docid FROM fts_table WHERE col_text MATCH 'something') From the SQLite.swift documentation I see the IN condition can be written like this: users.filter([1, 2, 3, 4, 5].contains(id)) // SELECT * FROM "users" WHERE ("id" IN (1, 2, 3, 4, 5)) And virtual tables can be queried like this: let wonderfulEmails = emails.match(

问题 I've been trying to install a database as part of my ruby on rails setup. I'm running a 64 bit windows 8, a x64 based machine. My ruby version is 2.1.3p242, rails version is 4.0.0, sqlite3 version is 3.8.6 and postgresql version is 9.3 I first tried to install sqlite3 by following the steps given in this SO answer but I get this error `require': Could not load 'active_record/connection_adapters/sqlite3_adapter'. Make sure that the adapter in config/database.yml is valid. My database.yml has

问题 I've been trying to install a database as part of my ruby on rails setup. I'm running a 64 bit windows 8, a x64 based machine. My ruby version is 2.1.3p242, rails version is 4.0.0, sqlite3 version is 3.8.6 and postgresql version is 9.3 I first tried to install sqlite3 by following the steps given in this SO answer but I get this error `require': Could not load 'active_record/connection_adapters/sqlite3_adapter'. Make sure that the adapter in config/database.yml is valid. My database.yml has