How can I use a Join from another table when im doing a Max to a column in ORACLE? - sql

Question

Getting This issue in which I'm using a Max to a Column, it returns me the number.
(My tables have already the Constraints).
Actual Return
CVEANO
CVENUMERO
CVEACCION
2021
7
4
2021
1
3
What I Want to Return from TblACCION
CVEANO
CVENUMERO
CVEACCION
CVEACCION NAME Brought from tblACCION
2021
7
4
NAME FOR NUMBER 4
2021
1
3
NAME FOR NUMBER 3
My actual Query is
SELECT
*
FROM
(
SELECT
cveano,
cvenumero,
max(cveaccion) as ultima
FROM
tblbitacoragf
WHERE
cveusuario = 1
GROUP BY
cvenumero,
cveano
order by max(fechaaccion) desc
)
WHERE ROWNUM <= 4
I've tried doing
INNER JOIN tblACCION ta USING (CVEACCION)
and in SELECT
ta.descripcion AS accion
but I guess there's something wrong, because it always asks me for
00000 - "missing right parenthesis"
and I did check for parenthesis, but there's no lack of parenthesis.
UPDATE
I've tried this 2.0 , nothing

Answer 1

As I understood, you are looking for something like this.
SELECT
*
FROM
(
SELECT
t1.cveano,
t1.cvenumero,
max(t1.cveaccion) as ultima,
max(t2.cveaccionName) as cveaccionName
FROM
tblbitacoragf t1
INNER JOIN tblACCION t2 ON t1.cveaccion = t2.cveaccion
WHERE
t1.cveusuario = 1
GROUP BY
t1.cvenumero,
t1.cveano
order by
max(t1.fechaaccion) desc
)
WHERE
ROWNUM <= 4
Also you can try this.
SELECT
abc.*,
xyz.cveaccionName
FROM
(
SELECT
cveano,
cvenumero,
max(cveaccion) as ultima
FROM
tblbitacoragf
WHERE
cveusuario = 1
GROUP BY
cvenumero,
cveano
order by
max(fechaaccion) desc
) abc
INNER JOIN tblACCION xyz ON abc.ultima = xyz.cveaccion
WHERE
ROWNUM <= 4