Debería haber sido unión externa; algo como esto:
SQL> declare
2 descr varchar2(90);
3 gz_dt date;
4 date1 date :=to_date('2021-01-01','YYYY-MM-DD');
5 date2 date :=to_date('2021-01-31','YYYY-MM-DD');
6 vatt_date date;
7 vempcode number;
8 cursor c_gzdt is
9 select g.gazzeted_date, g.description, p.att_date, p.emp_code
10 from pay_in_out p left join gazzeted_days g
11 on p.att_date = g.gazzeted_date
12 and gazzeted_date between date1 and date2
13 and p.emp_code=111
14 order by p.att_date;
15 begin
16 open c_gzdt;
17 loop
18 fetch c_gzdt into gz_dt, descr, vatt_date, vempcode ;
19 exit when c_gzdt%notfound;
20
21 if vatt_date = gz_dt then
22 dbms_output.put_line(vatt_date||' THE DAY OF : '||descr);
23 else
24 dbms_output.put_line(vatt_date||' THE DAY OF : '||'PRESENT');
25 end if;
26
27 end loop;
28 close c_gzdt;
29 end;
30 /
lo que resulta en
01.01.21 THE DAY OF : PRESENT
02.01.21 THE DAY OF : PRESENT
03.01.21 THE DAY OF : PRESENT
04.01.21 THE DAY OF : PRESENT
05.01.21 THE DAY OF : PRESENT
06.01.21 THE DAY OF : PRESENT
07.01.21 THE DAY OF : PRESENT
08.01.21 THE DAY OF : PRESENT
09.01.21 THE DAY OF : Its Holyday two
10.01.21 THE DAY OF : PRESENT
11.01.21 THE DAY OF : PRESENT
12.01.21 THE DAY OF : PRESENT
13.01.21 THE DAY OF : Its Holyday three
14.01.21 THE DAY OF : PRESENT
15.01.21 THE DAY OF : PRESENT
16.01.21 THE DAY OF : Its Holyday four
17.01.21 THE DAY OF : PRESENT
18.01.21 THE DAY OF : PRESENT
19.01.21 THE DAY OF : PRESENT
20.01.21 THE DAY OF : PRESENT
21.01.21 THE DAY OF : Its Holyday five
22.01.21 THE DAY OF : PRESENT
23.01.21 THE DAY OF : PRESENT
24.01.21 THE DAY OF : PRESENT
25.01.21 THE DAY OF : PRESENT
26.01.21 THE DAY OF : Its Holyday six
27.01.21 THE DAY OF : PRESENT
28.01.21 THE DAY OF : PRESENT
29.01.21 THE DAY OF : PRESENT
30.01.21 THE DAY OF : PRESENT
31.01.21 THE DAY OF : PRESENT
PL/SQL procedure successfully completed.
SQL>
A partir de Informes de Oracle Problema:omita PL/SQL por completo y use una consulta de cursor ligeramente modificada como consulta del informe. En la línea 8, todavía usaría parámetros, muy probablemente creados bajo los parámetros de usuario del informe. dentro del navegador de objetos. El informe, supongo, obtendría sus valores de otro lugar (como Oracle Forms o Apex o ...). Lo mismo ocurre con el ID , creo que realmente no quieres codificar 111 , ¿y tú?
SQL> select p.att_date ||
2 ' THE DAY OF : ' ||
3 case when p.att_date = g.gazzeted_date then g.description
4 else 'PRESENT'
5 end result
6 from pay_in_out p left join gazzeted_days g
7 on p.att_date = g.gazzeted_date
8 and gazzeted_date between date '2021-01-01' and date '2021-01-31'
9 and p.emp_code = 111
10 order by p.att_date;
RESULT
--------------------------------------------------------------
01.01.21 THE DAY OF : PRESENT
02.01.21 THE DAY OF : PRESENT
03.01.21 THE DAY OF : PRESENT
04.01.21 THE DAY OF : PRESENT
05.01.21 THE DAY OF : PRESENT
06.01.21 THE DAY OF : PRESENT
07.01.21 THE DAY OF : PRESENT
08.01.21 THE DAY OF : PRESENT
09.01.21 THE DAY OF : Its Holyday two
10.01.21 THE DAY OF : PRESENT
<snip>
[Unión externa en informes]
Ah, sí... en Informes, tendrá que usar la combinación externa "antigua" de Oracle (+) operador. Lo mismo ocurre con case - usar decode en cambio:
select p.att_date ||
' THE DAY OF : ' ||
decode(p.att_date, g.gazzeted_date, g.description, 'PRESENT') result
from pay_in_out p, gazzeted_days g
where p.att_date = g.gazzeted_date (+)
and g.gazzeted_date (+) between date '2021-01-01' and date '2021-01-31'
and p.emp_code = 111
order by p.att_date;
