alter table "TST_VLTNS"
    add "exitSurvey" integer;

alter table "TST_VLTNS"
    add "dateOfAdmission" timestamp;

alter table "TST_VLTNS"
    add "typeOfContract" integer;

alter table "TST_VLTNS"
    add "workStartTime" time;

alter table "TST_VLTNS"
    add "workEndTime" time;

alter table "TST_VLTNS"
    add "civilStatus" int;