I'm really confusing about sub Query of hibernate.
I've standard oracle query but unable to convert it into HQL.
select distinct b.nameId
from
(
select nameId from seg_user where id=1
)a, seg_user b
where b.id=a.nameId
can somebody convert it to HQL by using SubQuery or Crieteria
select distinct b.nameId
from seg_user b
where b.id = some (
select a.nameId from seg_user a where a.id=1
)
You can see how to use subqueries here: http://docs.jboss.org/hibernate/orm/3.3/reference/en/html/queryhql.html#queryhql-subqueries
Related
How to convert sql query mysql using criteriaquery this code:
SELECT a.customer as customer, a.cbgroup, a.cbdept, a.buc, a.customer_group, a.product, a.valuta, a.a_amount, a.cbgroup, b.b_amount, (b.b_amount-a.a_amount) as percentage
FROM (
SELECT a.customer, a.date, a.cbgroup, a.cbdept, a.buc, a.customer_group, a.product, a.valuta, SUM(a.amount) as a_amount FROM summaryfee as a WHERE a.date = '2019-06-30' AND a.cbgroup = 'CORPORATE BANKING 1' GROUP BY a.customer
) AS a INNER JOIN
(
SELECT b.customer, SUM(b.amount) as b_amount FROM summaryfee as b WHERE b.date = '2020-06-30' AND b.cbgroup = 'CORPORATE BANKING 1' GROUP BY b.customer
) AS b
ON a.customer=b.customer AND (b.b_amount-a.a_amount) < 0 ORDER BY CASE WHEN a.customer NOT LIKE '%Transaksi Nasabah%' THEN 0
ELSE 1
END, percentage asc LIMIT 5
You can rewrite a JPQL query as a criteria query, but not any native SQL query.
The problem at a glance with your query above is that uses subqueries in FROM clause.
JPQL query language and criteria query at least up to 2.1 JPA spec, support subqueries only in WHERE and HAVING clauses.
I have the following Hibernate HQL query:
select t from Term t join ApprovedCourse ap on t.id = ap.term.id group by t order by t desc
It's failing with the
ORA-00979: not a GROUP BY expression
error because Oracle insists that all select values be in the group by. Hibernate, of course, is hiding the various fields of the Term object from us, letting us deal with it as a Term and not Term.id. (This query works on Postgres, by the way. Postgres is more liberal about its group by requirements.)
Hibernate is producing the following SQL:
select term0_.id as id1_12_, term0_.semester_id as semester_id2_12_, term0_.year_id as year_id3_12_
from term term0_
inner join approved_course approvedco1_
on (term0_.id=approvedco1_.term_id)
group by term0_.id
order by term0_.id desc
I've tried just removing the select t from the start of the query, but then Hibernate assumes that I'm selecting both the Term and ApprovedCourse objects, and that makes things worse.
So how do I make this work in a Hibernate way?
I found that I could get what I want by replacing the group by clause with a distinct in the select clause. Here's the resulting query:
select distinct(t) from Term t join ApprovedCourse ap on t.id = ap.term.id order by t desc
can anybody help me to convert this SQL query to LINQ code in MVC? I need to return a list. The DB context entity is: _dbContext.
select distinct table1.AIG_ID, table1.GMT_NAME, table1.AIG_Number
from table1 left join table2 on table1.AIG_ID = table2.AIG_ID**
var data=(from item in db.table1 join
item1 in db.table2 on item.AIG_ID equals item1.AIG_ID
select new {item.AIG_ID ,item.GMT_NAME ,item.AIG_Number }).GroupBy(a=>a.AIG_ID).select(a=>a.FirstOrDefault()).ToList();
I write this part for your distinct in sql
GroupBy(a=>a.AIG_ID).select(a=>a.FirstOrDefault())
I'm practically new in using oracle and I bumped into a blocker. Below is the query that I created based on what I have researched online to update multiple columns of a table with values from a nested join statement.
UPDATE
(
SELECT
A.COLUMN1 OLD_COLUMN1,
BC.COLUMN1 NEW_COLUMN1,
A.BALANCE OLD_COLUMN2,
BC.COLUMN2_MIN NEW_COLUMN2,
A.COLUMN3 OLD_COLUMN3,
BC.COLUMN3 NEW_COLUMN3
FROM TABLE_A A
INNER JOIN
(
SELECT B.TWWID,
B.ITEMDATE,
B.COLUMN2_MIN,
C.COLUMN3,
C.COUNTRYID,
C.COLUMN1
FROM TABLE_B B
LEFT OUTER JOIN TABLE_C C
ON TO_CHAR(B.ID) = TO_CHAR(C.ID)
) BC
ON A.ID = BC.ID
AND A.DATE = BC.DATE
)ABCUPDATE
SET ABCUPDATE.OLD_COLUMN1 = ABCUPDATE.NEW_COLUMN1,
ABCUPDATE.OLD_COLUMN2 = ABCUPDATE.NEW_COLUMN2,
ABCUPDATE.OLD_COLUMN3 = ABCUPDATE.NEW_COLUMN3;
Selecting the sub-query returns the expected results but when I run the update script as a whole an error is returned.
ORA-01779: cannot modify a column which maps to a non key-preserved
table
Can anyone please explain why I encounter this error and what adjustments can I do to the script to make it work?
Thanks in advance!
I have a Query like below:
SELECT T.MTH_END_DT, T.SRC_SYS_CD, T.BTCH_ID
FROM PROD_RCRR.BAL_CNTRL_LOG T
WHERE T.SRC_SYS_CD='SL'
AND T.MTH_END_DT in (SELECT(MAX(MTH_END_DT)) FROM PROD_RCRR.BAL_CNTRL_LOG)
AND T.BTCH_ID in (SELECT(MAX(BTCH_ID )) FROM PROD_RCRR.BAL_CNTRL_LOG)
A error message shows Hive only can support one "in" clause. Anyone can give me a solution?
You can replace the whole thing with Join ON clause
SELECT
T.MTH_END_DT
, T.SRC_SYS_CD
, T.BTCH_ID
FROM PROD_RCRR.BAL_CNTRL_LOG T
JOIN ( SELECT
MAX(MTH_END_DT) ENDT
, MAX(BTCH_ID ) BTCH
FROM PROD_RCRR.BAL_CNTRL_LOG ) X
ON T.SRC_SYS_CD='SL'
AND T.MTH_END_DT = X.ENDT
AND T.BTCH_ID = X.BTCH