Question

I have an application where I show data from a database. In fact we can say it’s a database editor.

Now I want to perform update/delete command on this opened database. Using the following commands, the database opens successfully.

int nRet = sqlite3_open(szFile, &mpDB);

From C# (.net api) I am able to update data from database

dbCmd5 = New SQLiteCommand(
        "update Tbl_Tmp_Cal_Res Load_Time=5  WHERE Part_Index= 5", g_dbFlow);
dbCmd5.ExecuteNonQuery()

But from C++ I am getting error 5 (database is locked)

C++ code

int nRet = sqlite3_open(szFile, &mpDB);//database opened successfully.
sqlite3_exec(mpDB, "UPDATE query", 0, 0, &szError);//Error for this statement

Multithreading is not used in application.

Answer 1

Is the database used from another location in the code? Since something else clearly seems to have the database locked, I would guess that you’re using the database from another location in the code and have forgotten to call sqlite3_finalize on a select statement or something similar.