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); }
