I have this SQL query which a partner has done for a little project at university (this is the first time we use SQL), but we get the ora-00907 error and both of us don't know why.
I have checked the parenthesis and they seem to be ok, so the problem must be another.
select
persona.nombre,
anyo,
t2.total
from persona join
(
select
t1.idPersona,
count(produccion.anyo) as total,
anyo
from
(
select *
from produccion
join pelicula
on produccion.id = pelicula.id
) as pel
join
(
select *
from participa
where idPapel = 8
) as t1
on t1.idProduccion = pel.id
)
group by t1.idPersona
) as t2
on persona.id = t2.idPersona
where t2.total > 2
order by t2.total desc;
You are selecting * and doing group by on one column which is creating problem. Either you select only respective column under group by condition OR you remove group by.
select *
from (produccion join pelicula on produccion.id=pelicula.id) as pel
join
(select *
from participa
where idPapel=8) as t1
on t1.idProduccion=pel.id)
group by t1.idPersona
Above code section is unallowed use of group by.
If group by is so much needed, i would suggest you to use it later on in the end. Another option is to use analytical function and filter out rest un-wanted records in upper nesting of query which you already have.
You have lots of nested views, which makes your query rather hard to debug. You have lots of brackets, which need to match.
Anyway this is wrong: select t1.idPersona, count(produccion.anyo) as total, anyo. You'll need to include anyo in the GROUP BY clause, which will probably change the result set you want.
select persona.nombre,
t2.anyo,
t2.total
from persona join
(select t1.idPersona,
count(produccion.anyo) as total,
anyo
from (select *
from produccion
join pelicula
on produccion.id=pelicula.id) pel
join
(select *
from participa
where idPapel=8) t1
on t1.idProduccion=pel.id
group by t1.idPersona, t1.anyo) t2
on persona.id=t2.idPersona
where t2.total>2
order by t2.total desc;
I think your query can be simplified/corrected like this:
select persona.nombre,
anyo,
t2.total
from persona
join (
select par.idPersona,
count(produccion.anyo) as total,
anyo
from produccion
join pelicula
on produccion.id = pelicula.id
left join participa par
on par.idProduccion = pelicula.id -- or produccion.id,
-- this was also an error in the original query,
-- since the subquery selected both
and par.idPapel = 8
group by t1.idPersona
, anyo -- Was missing, but it also doesn't make sense, as this is what you count, so you'll just get 1's here. What do you want with this?
) as t2
on persona.id = t2.idPersona
where t2.total > 2
order by t2.total desc;
Related
For the below query I am getting an error with line 4 when referencing variables within "y". The query runs successfully when I use just " y.* " (line 5), however it generates an error when I try to also pull from the specified fields in line 4 (y.field1 as PRODUCT, y.field2 as PRODUCT_TYPE, y.entity, y.TYPE1). For the output, I want these fields listed first for visual reference.
I have this approach/ logic working for other queries (as i'm re using this logic for multiple variations of queries and various tables). However, I think that the issue with this one lies in my attempt to reference fields from tables that are in my join statements.
(
select
-- categorization fields:
-- table2.field1 as PRODUCT, table2.field2 as PRODUCT_TYPE, table3.entity, table3.TYPE1
y.field1 as PRODUCT,
y.field2 as PRODUCT_TYPE,
y.entity,
y.TYPE1
,y.*
from (
select *
from (
-- table references:
select table1.*,
row_number() over (
partition by
-- categorization fields:
table2.field1,
table2.field2,
table3.entity,
table3.TYPE1
order by table3.entity
) as rn
-- table references
from table1
-- joins, links, and filtering:
inner join table6 on table1.field_1 = table6.code1
inner join table5 on (table6.code = table5.code1)
AND (table6.code = table5.code)
left join table3 on table6.ent1 = table3.ent_code
left join table2 on table1.extid = table2.extID
where table1.tdate between '01-APR-19' and '01-APR-21'
AND table1.refe NOT IN ('OFF')
) x
-- sample rows:
where rn <= 2
) y
);
Let me know if anyone has a way that I can maybe better specify which tables those fields come from. I wish I could just do something like this:
y.table2.field1 as PRODUCT,
y.table2.field2 as PRODUCT_TYPE,
y.table3.entity,
y.table3.TYPE1
Sorry that I don't have a fiddle available!
Let me know if anyone has a way that I can maybe better specify which tables those fields come from.
Don't use select *. Instead, use the column names and give them appropriate aliases so you know where they came from:
As an example:
SELECT small_value,
medium_value,
big_value
FROM (
SELECT small.value AS small_value,
medium.value AS medium_value,
big.value AS big_value
FROM big
CROSS JOIN medium
CROSS JOIN small
)
WHERE 1 = 1
In your query, instead of using SELECT * in y or using SELECT table1.* in x you can name the columns and give them descriptive aliases.
I am getting an error with line 4 when referencing variables within "y".
(
select
-- categorization fields:
-- table2.field1 as PRODUCT, table2.field2 as PRODUCT_TYPE, table3.entity, table3.TYPE1
That is because you cannot see TABLE2 or TABLE3 because the only "view" you are looking at is of the sub-query with the alias y.
If you want to see those columns then you need to SELECT them inside the x subquery and pass them to each subsequent outer-query.
(
select *
from (
-- table references:
select table1.field1 AS t1_product,
table1.field2 AS t1_product_type,
table1.entity AS t1_entity,
table1.type1 AS t1_type1,
table2.field1 AS t2_product,
table2.field2 AS t2_product_type,
table2.entity AS t2_entity,
table2.type1 AS t2_type1,
table3.field1 AS t3_product,
table3.field2 AS t3_product_type,
table3.entity AS t3_entity,
table3.type1 AS t3_type1,
row_number() over (
partition by
-- categorization fields:
table2.field1,
table2.field2,
table3.entity,
table3.TYPE1
order by table3.entity
) as rn
-- table references
from table1
-- joins, links, and filtering:
inner join table6 on table1.field_1 = table6.code1
inner join table5 on (table6.code = table5.code1)
AND (table6.code = table5.code)
left join table3 on table6.ent1 = table3.ent_code
left join table2 on table1.extid = table2.extID
where table1.tdate between '01-APR-19' and '01-APR-21'
AND table1.refe NOT IN ('OFF')
) x
-- sample rows:
where rn <= 2
);
I have scrapped my previous question as I did not do a good job explaining. Maybe this will be simpler.
I have the following query.
Select * from comp_eval_hdr, comp_eval_pi_xref, core_pi, comp_eval_dtl
where comp_eval_hdr.START_DATE between TO_DATE('01-JAN-16' , 'DD-MON-YY')
and TO_DATE('12-DEC-17' , 'DD-MON-YY')
and comp_eval_hdr.COMP_EVAL_ID = comp_eval_dtl.COMP_EVAL_ID
and comp_eval_hdr.COMP_EVAL_ID = comp_eval_pi_xref.COMP_EVAL_ID
and core_pi.PI_ID = comp_eval_pi_xref.PI_ID
and core_pi.PROGRAM_CODE = 'PS'
Now if I only want a random 100 rows from the comp_eval_hdr table to join with the other tables how would I go about it? If it makes it easier you can disregard the comp_eval_dtl table.
I think you are pretty much there. You just need subqueries, table aliases, and JOIN conditions:
SELECT . . .
FROM (SELECT a.*
FROM (SELECT a.*
FROM a
WHERE a.START_DATE BEWTWEEN DATE '2016-01-01' AND DATE '2017-12-12'
ORDER BY DBMS_RANDOM.VALUE
) a
WHERE ROWNUM <= 100
) a JOIN
mapping m
ON a.? = m.? JOIN
b
ON m.? = b.?;
The ? is just a placeholder for the join columns.
It's a bit of a stretch to know what you want with the question as written but here's my attempt.
WITH rand_list AS
(SELECT * FROM comp_eval_hdr
WHERE comp_eval_hdr.START_DATE BEWTWEEN TO_DATE('01-JAN-16' , 'DD-MON-YY') AND TO_DATE('12-DEC-17' , 'DD-MON-YY')
ORDER BY DBMS_RANDOM.VALUE)
first_100 AS
(SELECT *
FROM rand_list
WHERE ROWNUM <=100)
SELECT md.col_1, t3.col_a
FROM first_100 md
INNER JOIN
table2 t2 ON md.id_column = t2.fk_comp_eval_hdr_id
INNER JOIN
table3 t3 ON t3.id_column = t2.fk_table3_id
You haven't given any indication how they join or the table names and obviously I haven't run this against any mock tables.
You've got a list of randomised records with RAND_LIST which you could, if you wanted, combine with the FIRST_100 query (your choice).
The main query then just joins that through your mapping table (T2) to your 'multiples' table (T3).
how does table 2 look like?...Let me put one example as person table and order table?
select * from (
select * from person ps , order order where ps.city = 'mumbai' and ps.id = order.purchasedby ) porder where porder.rownum <= 100
I did not tested it but it will look something like this.
I had this query, which gives me the desired results on postgres
SELECT
t.*,
ROW_NUMBER() OVER (PARTITION BY t."Internal_reference", t."Movement_date" ORDER BY t."Movement_date") AS "cnt"
FROM (SELECT
"Internal_reference",
MAX("Movement_date") AS maxtime
FROM dw."LO-D4_Movements"
GROUP BY "Internal_reference") r
INNER JOIN dw."LO-D4_Movements" t
ON t."Movement_date" = r.maxtime
AND t."Internal_reference" = r."Internal_reference"
Issue is I have to translate the query above on Access where the analytical function does not exist ...
I used this answer to build the query below
SELECT
t."Internal_reference",
t.from_code,
t.to_code,
t."Movement_date",
t.shipment_number,
t."PO_number",
t."Quantity",
t."Movement_value",
t."Site",
t."Import_date",
COUNT(*) AS "cnt"
FROM (
SELECT "Internal_reference",
MAX("Movement_date") AS maxtime
FROM dw."LO-D4_Movements"
GROUP BY "Internal_reference") r
LEFT OUTER JOIN dw."LO-D4_Movements" t
ON t."Movement_date" = r.maxtime AND t."Internal_reference" = r."Internal_reference"
GROUP BY
t.from_code,
t.to_code,
t."Movement_date",
t.shipment_number,
t."PO_number",
t."Quantity",
t."Movement_value",
t."Site",
t."Import_date",
t."Internal_reference"
ORDER BY t.from_code
Issue is I only have 1 in the cnt column.
I tried to tweak it by removing the internal_reference (see below)
SELECT
t.from_code,
t.to_code,
t."Movement_date",
t.shipment_number,
t."PO_number",
t."Quantity",
t."Movement_value",
t."Site",
t."Import_date",
COUNT(*) AS "cnt"
FROM (
SELECT "Internal_reference",
MAX("Movement_date") AS maxtime
FROM dw."LO-D4_Movements"
GROUP BY "Internal_reference") r
LEFT OUTER JOIN dw."LO-D4_Movements" t
ON t."Movement_date" = r.maxtime AND t."Internal_reference" = r."Internal_reference"
GROUP BY
t.from_code,
t.to_code,
t."Movement_date",
t.shipment_number,
t."PO_number",
t."Quantity",
t."Movement_value",
t."Site",
t."Import_date"
ORDER BY t.from_code
However, the results are even worse. The cnt is growing but it gives me the wrong cnt
Any help are more than welcome as I'm slow losing my sanity.
Thanks
Edit: Please find the sqlfiddle
I think Gordon-Linoff's code is close to what you want, but there are some typos I couldn't correct without a rewrite, so here's my attempt
SELECT
t1.Internal_reference,
t1.Movement_date,
t1.PO_Number as Combination_Of_Columns_Which_Make_This_Unique,
t1.Other_columns,
Count(1) AS Cnt
FROM
([LO-D4_Movements] AS t1
INNER JOIN [LO-D4_Movements] AS t2 ON
t1.Internal_reference = t2.Internal_reference AND
t1.Movement_date = t2.Movement_date)
INNER JOIN (
SELECT
t3.Internal_reference,
MAX(t3.Movement_date) AS Maxtime
FROM
[LO-D4_Movements] AS t3
GROUP BY
t3.Internal_reference
) AS r ON
t1.Internal_reference = r.Internal_reference AND
t1.Movement_date = r.Maxtime
WHERE
t1.PO_Number>=t2.PO_Number
GROUP BY
t1.Internal_reference,
t1.Movement_date,t1.PO_Number,
t1.Other_columns
ORDER BY
t1.Internal_reference,
t1.Movement_date,
Count(1);
In addition to within the max(movement_date) subquery, the main table is brought in twice. One version is the one for showing in your results, the other is for counting records to generate the sequence numbers.
Gordon said you need a unique id column for each row. And that's true if by "column" you mean to include derived columns also. Also it only needs to be unique within any combination of "internal_reference" and "Movement_date".
I've assumed, perhaps wrongly, that PO_Number will suffice. If not, concatenate with that (and some delimeters) other fields which will make it unique. The where clause will need updating to compare t1 and t2 for the "Combination of Columns which make this unique".
If, there is no appropriate combination available, I'm not sure it can be done without VBA and/or temp tables as The-Gambill suggested.
This is a real pain in MS Access, as far as I know. One method is a correlated subquery, but you need a unique id column on each row:
SELECT t.*,
(SELECT COUNT(*)
FROM (SELECT "Internal_reference", MAX("Movement_date") AS maxtime
FROM dw."LO-D4_Movements"
GROUP BY "Internal_reference"
) as t2
WHERE t2."Internal_reference" AND t."Internal_reference" AND
t2."Movement_date" = t."Movement_date" AND
t2.?? <= t.??
) as cnt
FROM (SELECT "Internal_reference", MAX("Movement_date") AS maxtime
FROM dw."LO-D4_Movements"
GROUP BY "Internal_reference"
) r INNER JOIN
dw."LO-D4_Movements" t
ON t."Movement_date" = r.maxtime AND
t."Internal_reference" = r."Internal_reference";
The ?? is for the id or creation date or something to allow the counting of rows.
I have this two query
1.
select CL_Clients.cl_id,CL_Clients].cl_name,COUNT(*) AS number_of_orders
from CL_Clients,CLOI_ClientOrderItems
where CL_Clients.cl_id=CLOI_ClientOrderItems.cl_id
group by CL_Clients.cl_name,CL_Clients.cl_id
2.
select CL_Clients.cl_id,count(cloi_current_status) as dis
from CLOI_ClientOrderItems,CL_Clients
where cloi_current_status]='12'
and CL_Clients.cl_id=CLOI_ClientOrderItems.cl_id
group by CL_Clients.cl_name,CL_Clients.cl_id,CLOI_ClientOrderItems.cloi_current_status
i have this column i need to put count function and where condition
[cloi_current_status]
166
30
30
30
150
150
150
150
150
150
150
Quite simple, you just encapsulate the queries and give their result sets an alias and then do a JOIN between their aliases on the column that is common. (In the query below I assume you'll be joining by client id)
SELECT *
FROM (
SELECT CL_Clients.cl_id,
CL_Clients].cl_name,
COUNT(*) AS number_of_orders
FROM CL_Clients,
CLOI_ClientOrderItems
WHERE CL_Clients.cl_id = CLOI_ClientOrderItems.cl_id
GROUP BY CL_Clients.cl_name,
CL_Clients.cl_id
) A
INNER JOIN (
SELECT CL_Clients.cl_id,
count(cloi_current_status) AS dis
FROM CLOI_ClientOrderItems,
CL_Clients
WHERE cloi_current_status] = '12'
AND CL_Clients.cl_id = CLOI_ClientOrderItems.cl_id
GROUP BY CL_Clients.cl_name,
CL_Clients.cl_id,
CLOI_ClientOrderItems.cloi_current_status
) B
ON A.cl_id = B.cl_id
WHERE ...
GROUP BY ...
This will be treated as a separate result set, so you can also filter results with a WHERE or just a GROUP BY, just like in a normal SELECT.
UPDATE:
To answer the question in your comments, when you join two tables that have a column with the same value and use
SELECT * FROM A INNER JOIN B the * will show all columns returned by the join, meaning all columns from A and all columns from B, this is why you have duplicate columns.
If you want to filter the columns returned you can specifiy which columns you want returned. So, in your case, the top SELECT * can be replaced with
SELECT A.cl_id, A.cl_name, A.number_of_orders, B.dis so, your query becomes:
SELECT A.cl_id, A.cl_name, A.number_of_orders, B.dis
FROM (
SELECT CL_Clients.cl_id,
CL_Clients].cl_name,
COUNT(*) AS number_of_orders
FROM CL_Clients,
CLOI_ClientOrderItems
WHERE CL_Clients.cl_id = CLOI_ClientOrderItems.cl_id
GROUP BY CL_Clients.cl_name,
CL_Clients.cl_id
) A
INNER JOIN (
SELECT CL_Clients.cl_id,
count(cloi_current_status) AS dis
FROM CLOI_ClientOrderItems,
CL_Clients
WHERE cloi_current_status] = '12'
AND CL_Clients.cl_id = CLOI_ClientOrderItems.cl_id
GROUP BY CL_Clients.cl_name,
CL_Clients.cl_id,
CLOI_ClientOrderItems.cloi_current_status
) B
ON A.cl_id = B.cl_id
UPDATE #2:
For your last question, you need to GROUP BY at the end of the big query and use a HAVING condtion, like this:
GROUP BY A.cl_id, A.cl_name, A.number_of_orders, B.dis
HAVING COUNT(cloi_current_status) > 100
All depends on what data you are trying to get, but you can go about it like this.
SELECT Column_x, Column_y, etc..
FROM ClL_Clients a
JOIN (select CL_Clients.cl_id,CL_Clients].cl_name,COUNT(*) AS number_of_orders
from CL_Clients,CLOI_ClientOrderItems
where CL_Clients.cl_id=CLOI_ClientOrderItems.cl_id
group by CL_Clients.cl_name,CL_Clients.cl_id) b
on a.cl_id = b.cl_id
JOIN (select CL_Clients.cl_id,count(cloi_current_status) as dis
from CLOI_ClientOrderItems,CL_Clients
where cloi_current_status]='12'
and CL_Clients.cl_id=CLOI_ClientOrderItems.cl_id
group by CL_Clients.cl_name,CL_Clients.cl_id,CLOI_ClientOrderItems.cloi_current_status) c
on a.cl_id = c.cl_id
Group by BLAH BLAH
Hope this gets you in the right direction.
I'm trying to make a query to retrieve the region which got the most sales for sweet products. 'grupo_produto' is the product type, and 'regiao' is the region. So I got this query:
SELECT TOP 1 r.nm_regiao, (SELECT COUNT(*)
FROM Dw_Empresa
WHERE grupo_produto='1' AND
cod_regiao = d.cod_regiao) as total
FROM Dw_Empresa d
INNER JOIN tb_regiao r ON r.cod_regiao = d.cod_regiao ORDER BY total DESC
Then when i run the query, MS-Access asks for the "total" parameter. Why it doesn't consider the newly created 'column' I made in the select clause?
Thanks in advance!
Old Question I know, but it may help someone knowing than while you cant order by aliases, you can order by column index. For example, this will work without error :
SELECT
firstColumn,
IIF(secondColumn = '', thirdColumn, secondColumn) As yourAlias
FROM
yourTable
ORDER BY
2 ASC
The results would then be ordered by the values found in the second column wich is the Alias "yourAlias".
Aliases are only usable in the query output. You can't use them in other parts of the query. Unfortunately, you'll have to copy and paste the entire subquery to make it work.
You can do it like this
select * from(
select a + b as c, * from table)
order by c
Access has some differences compared to Sql Server.
Why it doesn't consider the newly
created 'column' I made in the select
clause?
Because Access (ACE/Jet) is not compliant with the SQL-92 Standard.
Consider this example, which is valid SQL-92:
SELECT a AS x, c - b AS y
FROM MyTable
ORDER
BY x, y;
In fact, x and y the only valid elements in the ORDER BY clause because all others are out of scope (ordinal numbers of columns in the SELECT clause are valid though their use id deprecated).
However, Access chokes on the above syntax. The equivalent Access syntax is this:
SELECT a AS x, c - b AS y
FROM MyTable
ORDER
BY a, c - b;
However, I understand from #Remou's comments that a subquery in the ORDER BY clause is invalid in Access.
Try using a subquery and order the results in an outer query.
SELECT TOP 1 * FROM
(
SELECT
r.nm_regiao,
(SELECT COUNT(*)
FROM Dw_Empresa
WHERE grupo_produto='1' AND cod_regiao = d.cod_regiao) as total
FROM Dw_Empresa d
INNER JOIN tb_regiao r ON r.cod_regiao = d.cod_regiao
) T1
ORDER BY total DESC
(Not tested.)
How about:
SELECT TOP 1 r.nm_regiao
FROM (SELECT Dw_Empresa.cod_regiao,
Count(Dw_Empresa.cod_regiao) AS CountOfcod_regiao
FROM Dw_Empresa
WHERE Dw_Empresa.[grupo_produto]='1'
GROUP BY Dw_Empresa.cod_regiao
ORDER BY Count(Dw_Empresa.cod_regiao) DESC) d
INNER JOIN tb_regiao AS r
ON d.cod_regiao = r.cod_regiao
I suggest using an intermediate query.
SELECT r.nm_regiao, d.grupo_produto, COUNT(*) AS total
FROM Dw_Empresa d INNER JOIN tb_regiao r ON r.cod_regiao = d.cod_regiao
GROUP BY r.nm_regiao, d.grupo_produto;
If you call that GroupTotalsByRegion, you can then do:
SELECT TOP 1 nm_regiao, total FROM GroupTotalsByRegion
WHERE grupo_produto = '1' ORDER BY total DESC
You may think it's extra work to create the intermediate query (and, in a sense, it is), but you will also find that many of your other queries will be based off of GroupTotalsByRegion. You want to avoid repeating that logic in many other queries. By keeping it in one view, you provide a simplified route to answering many other questions.
How about use:
WITH xx AS
(
SELECT TOP 1 r.nm_regiao, (SELECT COUNT(*)
FROM Dw_Empresa
WHERE grupo_produto='1' AND
cod_regiao = d.cod_regiao) as total
FROM Dw_Empresa d
INNER JOIN tb_regiao r ON r.cod_regiao = d.cod_regiao
) SELECT * FROM xx ORDER BY total