text: DROP TABLE IF EXISTS t_artifact_package;
  DROP TABLE IF EXISTS t_artifact_version;
  DROP TABLE IF EXISTS t_artifactory;
  DROP TABLE IF EXISTS t_build;
  DROP TABLE IF EXISTS t_cmd_line;
  DROP TABLE IF EXISTS t_stage;
  DROP TABLE IF EXISTS t_step;
  DROP TABLE IF EXISTS t_trigger;
  DROP TABLE IF EXISTS t_trigger_run;
  DROP TABLE IF EXISTS t_message;
  DROP TABLE IF EXISTS t_org;
  DROP TABLE IF EXISTS t_org_pipe;
  DROP TABLE IF EXISTS t_pipeline;
  DROP TABLE IF EXISTS t_pipeline_conf;
  DROP TABLE IF EXISTS t_pipeline_var;
  DROP TABLE IF EXISTS t_pipeline_version;
  DROP TABLE IF EXISTS t_param;
  DROP TABLE IF EXISTS t_user;
  DROP TABLE IF EXISTS t_user_info;
  DROP TABLE IF EXISTS t_user_org;
  DROP TABLE IF EXISTS t_user_msg;
  DROP TABLE IF EXISTS t_user_token;
  DROP TABLE IF EXISTS t_yml_plugin;
  DROP TABLE IF EXISTS t_yml_template;