实战：第十六章：判断Mysql库中是否存在某表

sql查询库中是否存在该表

案例：

SHOW TABLES IN dreamweb_gjfgw WHERE Tables_in_dreamweb_gjfgw ='g_app_data_service_log'

格式：

SHOW TABLES IN 数据库名称 WHERE Tables_in_数据库名称 ='表名称' 

Sql sql = new Sql("SHOW TABLES IN dreamweb_gjfgw WHERE Tables_in_dreamweb_gjfgw ='g_app_data_service_log';");
DataTable dataTable = DBManager.getDataTable(sql);
DataRowCollections rows = dataTable.getRows();
for (DataRow row : rows) {
    String data = row.getString("value");
    System.out.println("存在这个值：" + data);
}