https://soooprmx.com/sqlite-%ed%85%8c%ec%9d%b4%eb%b8%94%ec%9d%84-%eb%8b%a4%eb%a5%b8-%eb%8d%b0%ec%9d%b4%ed%84%b0%eb%b2%a0%ec%9d%b4%ec%8a%a4%eb%a1%9c-%ec%9d%b4%ea%b4%80%ed%95%98%ea%b8%b0/