Index of /IT%E6%8A%80%E8%83%BD/01.%E7%BC%96%E7%A8%8B%E5%BC%80%E5%8F%91%E6%95%99%E7%A8%8B%E5%90%88%E9%9B%86%28%E6%9C%80%E5%85%A8%296.6T/01.%E6%95%B0%E6%8D%AE%E5%BA%93%E5%90%88%E9%9B%86%EF%BC%88MYSQL%E3%80%81SQLSERVER%E3%80%81ORACLE%E3%80%81DB2%E7%AD%89%EF%BC%89/Oracle/Oracle12c%20OCP/%E7%AC%AC12%E5%A4%A9/