This application has requested the runtime to terminate it in an unusual way

[norobro]

Please post the stack trace or at least the last line in the stack trace that is your code.

[phapha]

Unfortunately, there is no stack trace
Capturer.jpg

[norobro]

Is that a debug build? Do a "Build->Clean All", a "Build->Rebuild All" and Run

If that doesn't work, set a breakpoint and step through your program until it crashes.

Other than that, can't help with Windows. Sorry.

[ChrisW67]

There is nothing in the lines you have posted that should cause anything like a program crash. (See below for reasons it won't work anyway)

• Rebuild the project from scratch: does the problem still occur?
• Comment out those lines: does the crash still occur?
• Single step through those lines, including stepping into the Qt code, and tell us exactly which causes the crash and how it arrived there?

Other observations:

• It is unusual that, in a table with only two varchar fields, you insert everything as a string. Sqlite should allow this, but you might consider fixing the inserts.
• Sqlite treats 'bool' as integers with 1 == true, 0 == false, not strings 'true' and 'false'. While it will store and retrieve these faithfully it will treat both as false (i.e. their value as integers is zero) in boolean expressions.
• Your table is defined with 10 columns (not 9) and you are trying to insert 9 values. The SQL is broken.
• Your second insert will fail with a duplicate key. Sqlite will not manufacture an id column value for you unless the column is declared "integer primary key autoincrement" (literally) and you either insert a NULL into the column, or omit the column from the insert.
• You should get into the habit of explicitly nominating columns in insert statements so that adding a column to a table does not break every existing insert. For example:

  create table a (id integer primary key autoincrement, b varchar(10));
  insert into a (b) values ('Hello'); 
  select * from a;

  create table a (id integer primary key autoincrement, b varchar(10));
  insert into a (b) values ('Hello'); 
  select * from a;

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• If you need the 'number' column to preserve the leading zeroes on your (I assume) phone numbers then you must use a varchar field.

[phapha]

There is nothing in the lines you have posted that should cause anything like a program crash. (See below for reasons it won't work anyway)

• Rebuild the project from scratch: does the problem still occur?
  

• yes
  

• Comment out those lines: does the crash still occur?

[ChrisW67]

Does the problem go away if you use ":memory:" as the database file name? That is make a transient, in-memory database.