C + + project to create a SQLite3 database, close the database connection, unable to open the database update again (but can query), shut down the entire program, to update the can,
Through the check information found to eliminate the connection pool, can thoroughly solve the problem of the file being used,
Reference data with links: https://blog.csdn.net/lovekiss2012/article/details/46414105 links: https://blog.csdn.net/xiaoyong_net/article/details/25036631
But the two posts are not c + +, could you tell me how to remove the connection pool in the c + + (ClearAllPools)?