我对 sqlite3_open_v2 函数有问题。 OS 是 Windows, 在 Qt 创造者中开发 。
sqlite3_open ("database.db", & amp;db); // 工作精细
但是
sqlite3_open_v2（“数据库.db”，&；db，SQLITE_open_READWRITE，“”）；//不工作
I m quite sure it s not utf-8 codding problem, cause first function works fine and i tried to change codding in project properties. Maybe problem is with filepath in first arg. Absolute paths didn t work too.
有人有使用此功能的想法和示例吗？
谢谢你的回答。
最后一个参数有问题。它必须为0或NULL，而不是“”
就这些，还是谢谢
This is probably because the file does not exist in the working directory. I would add some code to print the path of the current working directory just before calling sqlite3_open_v2 to be sure.
SQLITE_open_READWRITE的sqlite3_open和sqlite3-open_v2之间的一个区别是，第一个会在找不到文件时创建一个空数据库，而第二个不会。
为了允许使用sqlite3_open_v2创建数据库，您应该使用：
sqlite3_open_v2("database.db", &db, SQLITE_OPEN_READWRITE | SQLITE_OPEN_CREATE, NULL );
Be sure to have a look at the documentation for more information: http://www.sqlite.org/c3ref/open.html
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