Possible to load basic data from the database

src/database/database.hpp

@@ -3,7 +3,8 @@
 
 #include "sqlite3.h"
 #include <string>
-
+#include <optional>
+#include <set>
 class Database {
 
 public:
@@ -14,7 +15,18 @@ public:
     bool exec(const char* sqlQuery);
     bool exec(const std::string& sqlQuery);
 
+    /// returns true if the sql statment returns at least one row 
+    std::optional<int64_t> getInt(const char* sql);
+
+    std::optional<int64_t> insert(const char* sql);
+
+    std::set<std::string> getStrSet(const std::string& sql);
+
+    std::map<std::string, std::string> Database::getStrMap(const std::string& sql);
+
 private:
+    sqlite3_stmt* prepareStmt(const std::string& sql);
+
     sqlite3* m_db;
 };