I'm trying to execute the following query in Oracle:
SELECT c.id_cliente, c.nombre_cliente, c.apellidos_cliente
FROM cliente c
WHERE not exists (SELECT f.id_finca
FROM finca f
WHERE f.habitaciones = 3
EXCEPT
SELECT v.id_fincas
FROM visitas v
WHERE v.id_cliente = c.id_cliente)
But I am getting the error "missing right parenthesis".
The parenthesis are well-balanced, how can I solve this error?
Use MINUS instead of EXCEPT.
SELECT c.id_cliente,
c.nombre_cliente,
c.apellidos_cliente
FROM cliente c
WHERE NOT EXISTS (SELECT f.id_finca
FROM finca f
WHERE f.habitaciones = 3
MINUS
SELECT v.id_fincas
FROM visitas v
WHERE v.id_cliente = c.id_cliente)
there is no operator EXCEPT in Oracle. Use MINUS instead of it.
Additionally, your query seems weird: better try to make it with two not exists, I think it can give some performance.
Related
I've the following subquery in an sql query:
(
SELECT ID_PLAN, ID_CURSO, NEDICION, NOMBRE AS NOMBREUNIDAD FROM ASISTEN, ALUMNOS, UNIDADES
WHERE ASISTEN.COD = ALUMNOS.COD AND UNIDADES.IDESTRUCTURA = ALUMNOS.IDESTRUCTURA
AND UNIDADES.CDUNDORG = ALUMNOS.CDUNDORG
AND UPPER(TRANSLATE(UNIDADES.NOMBRE, 'áéíóúÁÉÍÓÚ', 'aeiouAEIOU')) LIKE '%CONSEJERIA%'
GROUP BY ID_PLAN, ID_CURSO, NEDICION) ASIS
Problem I have I believe lies in that both table ALUMNOS and UNIDADES have a column named 'NOMBRE' so if I attempt to execute the query I obtain:
00000 - "column ambiguously defined"
To avoid that I thought about changing NOMBRE AS NOMBREUNIDAD to:
UNIDADES.NOMBRE AS NOMBREUNIDAD
But if I do that I get a:
00000 - "not a GROUP BY expression"
So, I don't know what to do so that subquery executes properly.
What should I change to properly execute query without changing the column name?
Aliases are pretty useful, if you use them. The simplify queries and make them easier to read and maintain. I'd suggest you to do so, as it'll also help query to work because Oracle doesn't know which table you actually meant when you selected those 4 columns - which tables do they belong to?
This is just a guess as I don't know your tables so you'll have to fix it yourself. Also, I literally JOINed tables; try to avoid comma-separating them in FROM clause and doing join in WHERE clause as it is supposed to filter data.
GROUP BY, as already commented, is probably useless. If you wanted to fetch distinct set of values, then use appropriate keyword: distinct.
SELECT DISTINCT n.id_plan,
s.id_curso,
u.nedicion,
u.nombre
FROM asisten n
JOIN alumnos s ON n.cod = s.cod
JOIN unidades u
ON u.idestructura = s.idestructura
AND u.cdundorg = s.cdundorg
WHERE UPPER (TRANSLATE (u.nombre, 'áéíóúÁÉÍÓÚ', 'aeiouAEIOU')) LIKE '%CONSEJERIA%'
I managed to solve my problem:
(
SELECT ID_PLAN, ID_CURSO, NEDICION, UNIDADES.NOMBRE AS NOMBREUNIDAD
FROM ASISTEN, ALUMNOS, UNIDADES
WHERE ASISTEN.COD = ALUMNOS.COD AND UNIDADES.IDESTRUCTURA = ALUMNOS.IDESTRUCTURA
AND UNIDADES.CDUNDORG = ALUMNOS.CDUNDORG
AND UPPER(TRANSLATE(UNIDADES.NOMBRE, 'áéíóúÁÉÍÓÚ', 'aeiouAEIOU')) LIKE '%CONSEJERIA%'
GROUP BY UNIDADES.NOMBRE,ID_PLAN, ID_CURSO, NEDICION
)
SELECT p.pnum, p.pname
FROM professor p, class c
WHERE p.pnum = c.pnum AND c.cnum = CS245 AND (SELECT COUNT(*) FROM (SELECT MAX(m.grade), MAX(m.grade) - MIN(m.grade) AS diff
FROM mark m WHERE m.cnum = c.cnum AND m.term = c.term AND m.section = c.section AND diff <= 20)) = 3
Incorrect syntax near ')'. Expecting AS, FOR_PATH, ID, or QUOTED_ID.
Consider the following example:
SELECT COUNT(1)
FROM SYSCAT.TABLES T
WHERE
(
-- SELECT COUNT(1)
-- FROM
-- (
SELECT COUNT(1)
FROM SYSCAT.COLUMNS C
WHERE C.TABSCHEMA=T.TABSCHEMA AND C.TABNAME=T.TABNAME
-- )
) > 50;
The query above works as is. But the problem is, that if you uncomment the commented out lines, you get the following error message: "T.TABNAME" is an undefined name. and least in Db2 for Linux, Unix and Windows.
You can't push external to the sub-select column references too deeply.
So, your query is incorrect.
It's hard to correct it, until you provide the task description with data sample and the result expected.
I can see a potential syntax errors: It seems that CS245 refers to a value c.cnum may take and not a column name. If that is the case, it should be enclosed in single quotes.
I´ve been trying to find the error in this statement for a few hours and can´t seem to find it.
It must have something to do with the AND connecting the two WHERE´s since when deleting the first WHERE it works:
SELECT E_AUFMASS_KOMMENTARE.FIBU_FIRMA,
E_AUFMASS_KOMMENTARE.AUFTR_NR,
E_AUFMASS_KOMMENTARE.KOMMENTAR,
AUFTR_EXT.ART_GRUPPE
FROM HHNG_AU.E_AUFMASS_KOMMENTARE
INNER JOIN HHNG_AU.AUFTR_EXT ON E_AUFMASS_KOMMENTARE.AUFTR_NR = AUFTR_EXT.AUFTR_NR
WHERE (E_AUFMASS_KOMMENTARE.AUFTR_NR = '1248823' )
AND WHERE NOT EXISTS( SELECT * FROM HHNG_AU.EX_KOMMENTARE WHERE EX_KOMMENTARE.AUFTR_NR = '1248823' )
Too many WHERE. You only need where once, then use ANDs and ORs to combine conditions:
SELECT E_AUFMASS_KOMMENTARE.FIBU_FIRMA, E_AUFMASS_KOMMENTARE.AUFTR_NR, E_AUFMASS_KOMMENTARE.KOMMENTAR, AUFTR_EXT.ART_GRUPPE FROM HHNG_AU.E_AUFMASS_KOMMENTARE INNER JOIN HHNG_AU.AUFTR_EXT ON E_AUFMASS_KOMMENTARE.AUFTR_NR = AUFTR_EXT.AUFTR_NR WHERE (E_AUFMASS_KOMMENTARE.AUFTR_NR = '1248823' ) AND NOT EXISTS( SELECT * FROM HHNG_AU.EX_KOMMENTARE WHERE EX_KOMMENTARE.AUFTR_NR = '1248823' )
Why do I get this error? I'm trying to do queries and for this i need of several selects from different tables, without any combination, but I'm getting this error and I don't known why.
Syntax error(s) [missing EOF at 'select']
Code:
select
d.tdok typ,
d.nr numer,
d.symbmg symbol,
d.data dataDok,
d.dokumwe dokumWe,
d.datawe datawe,
d.idkntrh idKth,
d.kwotadok kwotadok,
d.kwotavat,
k.nazwa1 nazwa1,
k.nazwa2 nazwa2
from dokum0 d
join kontrahent0 k on d.idkntrh=k.idkntrh
select t.kwota_n kwota_n
from dokumterm t
where t.dokum_id = id_dokum;
select p.id_pozdok0 AS settledCount
from pozdok p
where p.dokum_id = id_dokum;
select p.id_pozdok0 AS posCount
from pozdok p
where p.dokum_id=id_dokum;
select t.kupspr kupspr
from sltdok t
where t.tdok=tdok;
Can anyone help me?
You dont have semicolon (;) after end of first select... So this:
join kontrahent0 k on d.idkntrh=k.idkntrh
should be:
join kontrahent0 k on d.idkntrh=k.idkntrh;
I am trying to migrate data from mysql to hive.I am not able to write a subquery case when statement with IN clause.This is my query. Can you Please help in this regard. AM i not following the proper syntax .
CREATE TABLE HIVE_TPCE_TEMP.TMP_CDMA_CD AS
SELECT A.DRI,C.BOUND_ID,A.CT_ID,A.CD_ID,A.CID,
A.TID,A.TASK_SEQ_ID,A.DIV_ID,C.BLOCK_GROUP_ID,C.ZIP_CODE,C.ROAD_CATEGORY_ID,A.RXPOWER,"${hiveconf:C_CDMA_DEVICE_ONLINE_RXPOWER_METRIC_ID}" METRIC_ID,
CASE WHEN
((A.DRI,A.DIV_ID,A.RFID) in (SELECT DRI,DIV_ID,HOME_RFID FROM HIVE_TPCE_TEMP.TMP_HOME_NETWORKS)) THEN
CASE WHEN MODE IN ('A','N') THEN "${hiveconf:HAD}" ELSE "${hiveconf:HD}" END
WHEN (COALESCE(A.RFID,0) = 0) AND ((A.DRI,A.DIV_ID,D.FR,D.SUBBAND) IN (SELECT DRI,DIV_ID,HOME_FR,
HOME_SUBBAND FROM HIVE_TPCE_TEMP.TMP_HOME_NETWORKS))
THEN CASE WHEN MODE IN ('A','N') THEN "${hiveconf:HAD}" ELSE "${hiveconf:HD}" END
ELSE CASE WHEN MODE IN ('A','N') THEN "${hiveconf:PAI}" ELSE "${hiveconf:PDI}" END END HPDA_ID
FROM HIVE_TPCE.VW_CDMA_CD A INNER JOIN HIVE_TPCE.STG_CURRENT_FILES B
ON A.DRI = B.DRI AND A.SOURCE_FILE_ID = B.SOURCE_FILE_ID
INNER JOIN
HIVE_TPCE.WRK_LOCATION C
ON A.DRI = C.DRI AND A.LOCATION_ID = C.LOCATION_ID
INNER JOIN
HIVE_TPCE.LU_RADIO D
ON A.RADIO_ID = D.RADIO_ID WHERE A.CID > 0 AND D.MODE IN ('A','N') AND A.RXPOWER IS NOT NULL AND A.CALL_RESULT_ID BETWEEN 1 AND 16;
My error signature is
FAILED: ParseException line 10:42 mismatched input ',' expecting ) near 'DRI' in expression specification
According to the Hive Language Manual: "Hive supports subqueries only in the FROM clause".
Your CASE WHEN is part of the SELECT clause, but it includes includes a SELECT subquery. Seems like that is not supported, so your syntax is not correct (in Hive).
Perhaps you could stage the data in MySQL using the query you have and then load it into Hive using a simple SELECT without CASE WHEN?
See official document.
It says
Assumptions
We plan to limit the scope with the following assumptions and limitations.
Subqueries could only be top-level expressions in SELECT. That is, subqueries in complex expressions, aggregates, UDFs, etc. will not be supported for now