TacDb.h++:
in class TacDb in provate section you can find or add database
table descriptor as: 
DbTable *table_name_var;

TacDb.cc:
in constructor you should add:
 table_name_var = new DbTable("table_name","table description");
and also add table fields:
 table_name_var->add("field_name","field description",FIELD_TYPE);
where FIELD_TYPE =
	STR_TYPE	- char(), varchar() - string
	 for this type you should add field size:
 		table_name_var->add("field_str","description",STR_TYPE,32);
	UINT_TYPE - unsigned int
	INT_TYPE - ordinary int (remember, usually in SQL databases no signed
		int type, and this will unsigned too)
	FLOAT_TYPE - float
	DATE_TYPE - datetime or similar
	BOOL_TYPE - boolean