What is a good OO C++ wrapper for sqlite [closed]

Answer 1

http://www.codeproject.com/KB/database/CppSQLite.aspx is just fantastic, it is very easy to port, I had it working on bcb5 (omg) in half an hour or so. It is about as thin as you can get and easy to understand. There are a goodly number of examples that cover just about every thing you need to know. It uses exceptions for error handling - I modified it to provide return codes in a mater of minutes. Only tricky issue is to create your own lib file none are provided.

try
{

    CppSQLite3DB db;

    db.open(asFileName.c_str());

    db.execDML("Update data set hrx = 0");

} // try

catch (...)
{

} // catch

Could not be much simpler than this.....

Answer 2

I also wasn't pleased with what I could find. Now you can write:

class Person {
public:
    Person() {}
    static SqlTable<Person>& table() {
        static SqlTable<Person> tab = SqlTable<Person>::sqlTable("Person",
            SqlColumn<Person>("Firstname",  makeAttr(&Person::firstname)),
            SqlColumn<Person>("Lastname",   makeAttr(&Person::lastname)),
            SqlColumn<Person>("Age",        makeAttr(&Person::age)),
        return tab;
    }
    std::string firstname;
    std::string lastname;
    int age;
};

SqliteDB db("testtable.db");
auto sel(db.select<Person>("Firstname=\"Danny\" and Lastname=\"Zeckzer\""));
std::for_each(sel.first, sel.second, [](const Person& p) {
...
Person me;
db.insert<Person>(me);
...
std::vector<Person> everybody;
db.insert<Person>(everybody.begin(), everybody.end());

The table method is all you need to write as long as you stick to the sqlite3 data types. As everything is a template not much abstraction layer code remains after -O. Natural joins require a result class similar to the Person class. The implementation is a single header with less than 500 lines. License is LGPL. Source

Answer 3

Another simple one is NLDatabase. Disclaimer: I'm the author. Basic usage (and to be honest, you won't get much more than "basic" from this one) looks like this:

#include "NLDatabase.h"


using namespace std;
using namespace NL::DB;


int main(int argc, const char * argv[]) {

    Database db( "test.sqlite" );

    auto results = db.query("SELECT * FROM test WHERE name <> ?").select("TOM");

    for ( auto const & row : results ) {
        cout << "column[0]=" << row.column_string( 0 ) << endl;
    }
}

And just for fun, open a database, run a query and fetch results all in one line:

for ( auto & row : Database( "test.sqlite" ).query( "SELECT * FROM test").select() ) {
    cout << row.column_string( 0 ) << endl;
}

Answer 4

I wasn't pleased with any I could find either, so I wrote my own: sqlite3cc.

Here's a code example:

sqlite::connection db( filename );

sqlite::command c( db, "UPDATE foo SET bar = ? WHERE name = ?" );
c << 123 << name << sqlite::exec;

sqlite::query q( db, "SELECT foo FROM bar" );
for( sqlite::query::iterator i = q.begin(); i != q.end(); i++ )
    std::cout << i->column< std::string >( 0 ) << "\n";

Answer 5

Everyone have given good advice on what to use: I'll tell you what instrument NOT use.

LiteSQL.

My experience is terrible.
I'm just doing some reasearch on what orm use, and I'm testing a lot of it.

Weaknesses:

• no documentation
• no explanatory README
• no explanation on prerequisites
• do not compile due to a lot of bug (isn't true, isn't fixed in v0.3.17)

Answer 6

I made one because of the need in our company. https://www.github.com/rubdos/libsqlitepp It's C++11, and header only. Just put the header in your project, include it and link to the C sqlite libraries.

Examples should be somewhere on that git repo too, fairly easy to use.