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Hi,

I have to add a new column (if it not exists) in my Sqlite-Database (already open) and write data into the new column.

What's the right way to do this?
Now I close the query and add the column with ExecSQL: After this I have to disconnect the connection for using the new column.

Is there a better approach?

Thank you.

After inserting a new column into a table, it is not required to close and then re-open connection to the database. In case of using the UniQuery component, it is enough to close and re-open the query after column insertion:

UniQuery.Close;
UniQuery.Open;

After that, the newly created column will be available using UniQuery.