Delphi Firebird Procedure

create or alter procedure PR_READ_DATA_PERS (
TAB_PERS integer)
returns (
R_TAB_PERS integer,
R_FAM_PERS varchar(30),
R_NAME_PERS varchar(30),
R_LAST_NAME_PERS varchar(30),
R_TOWN_PERS varchar(30),
R_STREET_PERS varchar(30),
R_HOUSE_PERS varchar(10),
R_KVART_PERS varchar(10),
R_BIRTH_PERS date,
R_KOLONA_PERS smallint,
R_POST_PERS integer,
R_MOTION_PERS integer,
R_KLASS_PERS smallint,
R_TRACT_PERS integer,
R_DATE_PERS date)
as
begin
select PERSONAL.p_tab, PERSONAL.P_FAMILY, PERSONAL.P_NAME, PERSONAL.P_LASTNAME,
PERSONAL_DATA.PD_TOWN, PERSONAL_DATA.PD_STREET, PERSONAL_DATA.PD_HOUSE,personal_data.pd_kvart,
PERSONAL_DATA.P_BIRTH, PERSONAL_DATA2.PD_KOLONA, personal_data2.pd_post,
personal_data2.pd_motion, PERSONAL_DATA2.PD_KLASS, personal_data2.pd_traction, PERSONAL_DATA2.PD_DATE
from personal,personal_data,personal_data2
where (personal.p_tab=:Tab_pers) and (personal_data.pd_tab=:tab_pers) and (personal_data2.pd_tab=:tab_pers)
into :R_TAB_PERS, :R_FAM_PERS,:R_NAME_PERS,:R_LAST_NAME_PERS,:R_TOWN _PERS,:R_STREET_PERS,:R_HOUSE_PERS,:R_KVART_PERS,: R_BIRTH_PERS,:r_kolona_pers,:R_POST_PERS,:r_motion _pers,:r_klass_pers,:R_TRACT_PERS,:r_date_pers;
end

StoredProcReadPersProc.Active;
StoredProcReadPersProc.StoredProcName:='PR_READ_DA TA_PERS';
StoredProcReadPersProc.Params.Add;
StoredProcReadPersProc.Params.Items[0].Name:= 'TAB_PERS';
//StoredProcReadPersProc.Params[0].AsInteger:=QueryViewPers.FieldByName('P_TAB').AsI nteger;
StoredProcReadPersProc.Params.ParamValues['TAB_PERS']:= QueryViewPers.FieldByName('P_TAB').AsInteger;
StoredProcReadPersProc.Params.Add;
StoredProcReadPersProc.Params.Items[1].Name:='R_FAM_PERS';
showmessage(StoredProcReadPersProc.ParamByName('TA B_PERS').AsString);
StoredProcReadPersProc.Prepare;
StoredProcReadPersProc.ExecProc;

//StoredProcReadPersProc.Params.AddParam(
s:=StoredProcReadPersProc.ParamByName('R_FAM_PERS' ).Value;
showmessage(s);