MeanSquaredError

@margaretselzer Indeed the way most people commit changes to the upstream/original project is by making changes to a separate local branch, then pushing that branch to their own fork and...

@margaretselzer sqlpp23's connection classes have three overloads for `operator()`, that allow the connection object to be called with either of these - Statement object - String containing SQL statement(s). -...

@margaretselzer > A pity as I think it is good to be able to clearly distinguish between a query() that returns a result set and execute() that returns only number...

While I am not the library author, I want to comment on `query()` vs `execute()` IMHO having two separate methods is not really making the code more reliable. When executing...

> Actually, it does. That's why there are classes like `prepared_select_t`. Oops. Indeed prepared statements do keep the type of operation. I _knew_ that had type information because I had...

@rathnadhar sqlpp11 works fine with MariaDB, just use the MySQL connector and connect to the MariaDB database. Also all sqlp11 MySQL tests pass correctly with a MariaDB backend. MariaDB and...

Essentially when the CMake option `BUILD_MARIADB_CONNECTOR` is enabled it checks if MariaDB is installed, but the user should use the MySQL connector, because MariaDB is (mostly) the same database as...

Sure, give me moment, to prepare a zip file and a brief explanation.

[pg_dbm.zip](https://github.com/user-attachments/files/16881819/pg_dbm.zip) OK, I have attached a zip file with the source code for the database manager that I use. It uses PostgreSQL but it should be relatively easy to adjust...

By the way, the code was originally written for a C++20 project, but I think that it is mostly compatible and should compile in C++17 mode with no or little...