Subquery in the HAVING Clause
Hello all,
i'm getting error when i try to write sub query in having clause. check out my query
select ROUND( Count( distinct Sales2011_DIVDPTA.DIVDPTA_Item_Dept ),0) AS "F1" , ROUND( Count( Sales2011.Sales2011_DG1.Item_Season ),0) AS "F2"
from Sales2011.Sales2011_JT
INNER JOIN Sales2011.Sales2011_DG1 On Sales2011.Sales2011_DG1.DG1_ID =Sales2011.Sales2011_JT.DG1_ID
LEFT JOIN Sales2011.Sales2011_DIVDPTA On nvl(Sales2011.Sales2011_DIVDPTA.DIVDPTA_ITEM_DIVISION,' ')=nvl(Sales2011.Sales2011_DG1.Item_Division,' ')
AND nvl(Sales2011.Sales2011_DIVDPTA.DIVDPTA_ITEM_DEPT,' ')=nvl(Sales2011.Sales2011_DG1.Item_Dept,' ')
having ( ROUND( Count( Sales2011.Sales2011_DG1.Item_Season ),0) in ( 0)
But it is not executed if I use the sub query in having clause
select ROUND( Count( distinct Sales2011_DIVDPTA.DIVDPTA_Item_Dept ),0) AS "F1" , ROUND( Count( Sales2011.Sales2011_DG1.Item_Season ),0) AS "F2"
from Sales2011.Sales2011_JT
INNER JOIN Sales2011.Sales2011_DG1 On Sales2011.Sales2011_DG1.DG1_ID =Sales2011.Sales2011_JT.DG1_ID
LEFT JOIN Sales2011.Sales2011_DIVDPTA On nvl(Sales2011.Sales2011_DIVDPTA.DIVDPTA_ITEM_DIVISION,' ')=nvl(Sales2011.Sales2011_DG1.Item_Division,' ')
AND nvl(Sales2011.Sales2011_DIVDPTA.DIVDPTA_ITEM_DEPT,' ')=nvl(Sales2011.Sales2011_DG1.Item_Dept,' ')
having ( ROUND( Count( Sales2011.Sales2011_DG1.Item_Season ),0)
in ( select ROUND( Count(
Sales2011.Sales2011_DG1.Item_Season ),0) from Sales2011.Sales2011_DG1 )
Error at Command Line:1 Column:0
Error report:
SQL Error: ORA-00979: not a GROUP BY expression
00979. 00000 - "not a GROUP BY expression"
*Cause:
*Action:any help ???
Sorry unintentionally i have posted my question here.
will you please elaborate this? Becoz i'm not using group by clause in both query. First query run successfully but as i put sub query in having clause it raised an error. will you tell where i'm committing mistake?
Aggregates in the HAVING clause do not need to appear in the SELECT list. If the HAVING clause contains a subquery, the subquery can refer to the outer query block if and only if it refers to a grouping column.Edited by: Oracle Studnet on Aug 14, 2011 11:28 PM
Similar Messages
-
Can I put a subquery in the where clause, on the left side on the operator?
This is a multi-row query.
Like this,
select a.col1, a.col2, b.col1, b.col2,
my_function(a.date1, b.date2) AS GROSSDAYS
from table1 a
where ( select ( a.date1 - b.date2 ) as range
from table1 a
join table2 b
on a.col3 = b.col3
where rownum =1
in ( 1,2,3)
and a.col1 = b.col2I need to use a subquery because the column I need does not exist in the table, and I cannot make any changed to the table structure.
Is what I'm doing possible?
The subquery is the same as the function I have in the Select clause.I tried a subquery in the where clause, but now I'm getting a missing expression error!
SELECT
r.complete_flag, r.order_num, r.referral_num, TRUNC(r.referral_datetime) AS referral_datetime,
r.clinic_specialty, a.appointment_datetime, TRUNC(a.appointment_date_made) AS appt_datemade, a.appointment_status_id,
scref.scr_rules.calcatcdays(r.referral_datetime,a.appointment_date_made) AS ATCDays -- returns difference between two dates
FROM
referral r,
( SELECT referral_num,appointment_datetime, appointment_date_made, appointment_status_id
FROM ( SELECT referral_num, appointment_datetime, appointment_date_made, appointment_status_id,
ROW_NUMBER() OVER (PARTITION BY referral_num
ORDER BY appointment_datetime) rn
FROM appointment
WHERE rn = 1
a
WHERE r.order_num IS NOT NULL
AND ( SELECT adays -- THIS IS WHERE I'M GETTING A MISSING EXPRESSION ERROR!!!
FROM ( SELECT scref.scr_rules.calcatcdays(r.referral_datetime,a.appointment_date_made) AS adays
FROM referral r
JOIN appointment a
ON a.referral_num = r.referral_num
WHERE ROWNUM = 1
WHERE adays
) = 3
AND r.referral_num = a.referral_num(+)
AND TRUNC(r.referral_datetime) >= TO_DATE('01-JUL-05','DD-MON-YY')
AND TRUNC(r.referral_datetime) <= TO_DATE('31-JUL-05','DD-MON-YY') -
I have a query the contains a subquery in the from clause. The problem is how to join one of the tables in the subquery to one of the main tables. If I hard a value, the query runs, but using a table.column produced an "invalid column name" error.
Examples of both are below.
This one works
SELECT a.pay_rate, a.bill_rate, a.frequency, c.value
FROM SYSADM.ps_pb_wkord_sq_rte a, SYSADM.ps_md_erncd_action b,
SELECT DISTINCT z.value
FROM SYSADM.ps_md_erncd_action z
WHERE z.md_action = 'CALC_BURD' AND
z.system_id = 'PB' AND
z.erncd = 'REG' AND **This is the line in question**
z.effdt = (
SELECT MAX(z_ed.effdt)
FROM SYSADM.ps_md_erncd_action z_ed
WHERE z.setid = z_ed.setid AND
z.erncd = z_ed.erncd AND
z.effdt = z_ed.effdt AND
z.system_id = z_ed.system_id AND
z.md_action = z_ed.md_action AND
z_ed.effdt <= TO_DATE('04/01/2001','MM/DD/YYYY'))) c
WHERE a.erncd = b.erncd AND
b.effdt = (
SELECT MAX(b_ed.effdt)
FROM SYSADM.ps_md_erncd_action b_ed
WHERE b.setid = b_ed.setid AND
b.erncd = b_ed.erncd AND
b.effdt = b_ed.effdt AND
b.system_id = b_ed.system_id AND
b.md_action = b_ed.md_action AND
b_ed.effdt <= TO_DATE('04/01/2001','MM/DD/YYYY')) AND
a.group_id = 'PSD01' AND
a.workorder_no = 'H00034758' AND
a.assignment_no = 'H00034758-001' AND
b.system_id = 'PB' AND
b.md_action = 'EARN_TYPE' AND
b.value = 'R';
This one produces the error
SELECT a.pay_rate, a.bill_rate, a.frequency, c.value
FROM SYSADM.ps_pb_wkord_sq_rte a, SYSADM.ps_md_erncd_action b,
SELECT DISTINCT z.value
FROM SYSADM.ps_md_erncd_action z
WHERE z.md_action = 'CALC_BURD' AND
z.system_id = 'PB' AND
z.erncd = a.erncd AND **This is line in question**
z.effdt = (
SELECT MAX(z_ed.effdt)
FROM SYSADM.ps_md_erncd_action z_ed
WHERE z.setid = z_ed.setid AND
z.erncd = z_ed.erncd AND
z.effdt = z_ed.effdt AND
z.system_id = z_ed.system_id AND
z.md_action = z_ed.md_action AND
z_ed.effdt <= TO_DATE('04/01/2001','MM/DD/YYYY'))) c
WHERE a.erncd = b.erncd AND
b.effdt = (
SELECT MAX(b_ed.effdt)
FROM SYSADM.ps_md_erncd_action b_ed
WHERE b.setid = b_ed.setid AND
b.erncd = b_ed.erncd AND
b.effdt = b_ed.effdt AND
b.system_id = b_ed.system_id AND
b.md_action = b_ed.md_action AND
b_ed.effdt <= TO_DATE('04/01/2001','MM/DD/YYYY')) AND
a.group_id = 'PSD01' AND
a.workorder_no = 'H00034758' AND
a.assignment_no = 'H00034758-001' AND
b.system_id = 'PB' AND
b.md_action = 'EARN_TYPE' AND
b.value = 'R';
Any help is greatly appreciated.
Thanks,
JD LippardHi JD,
your code is very difficult to read to i will give you some general information.
SELECT t1.c1,t1.c2
FROM table t1
, (SELECT t2.col1 alias1
, t2.col2 alias2
, a.s.o.
FROM anytable t2
) tablealias
WHERE t1.c1 = tablealias.alias1
You can select any columns inside this 'dynamic view' whichever you need for a join. Independent if you print them or not.
But you cannot join INSIDE this dynamic view to outer tables like
SELECT t1.c1,t1.c2
FROM table t1
, (SELECT t2.col1 alias1
, t2.col2 alias2
, a.s.o.
FROM anytable t2
WHERE t1.c2 = t2.col2
) tablealias
WHERE bla
Maybe it helps a bit.
Cheers,
Udo -
Can a subquery in the select clause return more than one field?
Something like this:
select ename,
(select dname, loc from dept where e.deptno = deptno) as (dname,loc)
from emp eA simple way to find out is to test it. In my tests below, the original query produces an error that says it didn't find FROM where it expected. Eliminating "as (dname,loc)" produces an error about too many values. Putting only one value in the subquery in the select clause works, whether it is dname or loc. Concatenating the two columns as dname || ' ' || loc to produce one value in the subquery in the select clause works. Using two separate subqueries, one for dname and one for loc works. And, lastly, a cursor statement with both values works, although the output is a little hard to read. This may be different in newer versions. I am using Oracle 8.1.7. It may be different in 9i. I was unable to locate any documentation on the cursor statement or cursor operator which I have also heard it called. I only knew to try it because I have seen it used. I looked up the SELECT syntax in the 9i SQL Reference and there was no mention of cursor in the select clause. Can anyone provide a link to some documentation on this? I vaguely recall reading something that said that, other than outputting from SQL*Plus as below, it wasn't yet compatible with anything else, like you can't use it in PL/SQL, but I can't remember where I read it.
SQL> -- 2 values in subquery in select clause:
SQL> select ename,
2 (select dname, loc from dept where e.deptno = deptno) as (dname,loc)
3 from emp e
4 /
(select dname, loc from dept where e.deptno = deptno) as (dname,loc)
ERROR at line 2:
ORA-00923: FROM keyword not found where expected
SQL> select ename,
2 (select dname, loc from dept where e.deptno = deptno)
3 from emp e
4 /
(select dname, loc from dept where e.deptno = deptno)
ERROR at line 2:
ORA-00913: too many values
SQL> -- 1 value in subquery in select clause:
SQL> select ename,
2 (select dname from dept where e.deptno = deptno)
3 from emp e
4 /
ENAME (SELECTDNAMEFR
SMITH RESEARCH
ALLEN SALES
WARD SALES
JONES RESEARCH
MARTIN SALES
BLAKE SALES
CLARK ACCOUNTING
SCOTT RESEARCH
KING ACCOUNTING
TURNER SALES
ADAMS RESEARCH
JAMES SALES
FORD RESEARCH
MILLER ACCOUNTING
14 rows selected.
SQL> select ename,
2 (select loc from dept where e.deptno = deptno)
3 from emp e
4 /
ENAME (SELECTLOCFRO
SMITH DALLAS
ALLEN CHICAGO
WARD CHICAGO
JONES DALLAS
MARTIN CHICAGO
BLAKE CHICAGO
CLARK NEW YORK
SCOTT DALLAS
KING NEW YORK
TURNER CHICAGO
ADAMS DALLAS
JAMES CHICAGO
FORD DALLAS
MILLER NEW YORK
14 rows selected.
SQL> select ename,
2 (select dname || ' ' || loc from dept where e.deptno = deptno)
3 from emp e
4 /
ENAME (SELECTDNAME||''||LOCFROMDEP
SMITH RESEARCH DALLAS
ALLEN SALES CHICAGO
WARD SALES CHICAGO
JONES RESEARCH DALLAS
MARTIN SALES CHICAGO
BLAKE SALES CHICAGO
CLARK ACCOUNTING NEW YORK
SCOTT RESEARCH DALLAS
KING ACCOUNTING NEW YORK
TURNER SALES CHICAGO
ADAMS RESEARCH DALLAS
JAMES SALES CHICAGO
FORD RESEARCH DALLAS
MILLER ACCOUNTING NEW YORK
14 rows selected.
SQL> select ename,
2 (select dname from dept where e.deptno = deptno),
3 (select loc from dept where e.deptno = deptno)
4 from emp e
5 /
ENAME (SELECTDNAMEFR (SELECTLOCFRO
SMITH RESEARCH DALLAS
ALLEN SALES CHICAGO
WARD SALES CHICAGO
JONES RESEARCH DALLAS
MARTIN SALES CHICAGO
BLAKE SALES CHICAGO
CLARK ACCOUNTING NEW YORK
SCOTT RESEARCH DALLAS
KING ACCOUNTING NEW YORK
TURNER SALES CHICAGO
ADAMS RESEARCH DALLAS
JAMES SALES CHICAGO
FORD RESEARCH DALLAS
MILLER ACCOUNTING NEW YORK
14 rows selected.
SQL> -- cursor statement:
SQL> select ename,
2 cursor (select dname, loc from dept where e.deptno = deptno)
3 from emp e
4 /
ENAME CURSOR(SELECTDNAME,L
SMITH CURSOR STATEMENT : 2
CURSOR STATEMENT : 2
DNAME LOC
RESEARCH DALLAS
1 row selected.
ALLEN CURSOR STATEMENT : 2
CURSOR STATEMENT : 2
DNAME LOC
SALES CHICAGO
1 row selected.
WARD CURSOR STATEMENT : 2
CURSOR STATEMENT : 2
DNAME LOC
SALES CHICAGO
1 row selected.
JONES CURSOR STATEMENT : 2
CURSOR STATEMENT : 2
DNAME LOC
RESEARCH DALLAS
1 row selected.
MARTIN CURSOR STATEMENT : 2
CURSOR STATEMENT : 2
DNAME LOC
SALES CHICAGO
1 row selected.
BLAKE CURSOR STATEMENT : 2
CURSOR STATEMENT : 2
DNAME LOC
SALES CHICAGO
1 row selected.
CLARK CURSOR STATEMENT : 2
CURSOR STATEMENT : 2
DNAME LOC
ACCOUNTING NEW YORK
1 row selected.
SCOTT CURSOR STATEMENT : 2
CURSOR STATEMENT : 2
DNAME LOC
RESEARCH DALLAS
1 row selected.
KING CURSOR STATEMENT : 2
CURSOR STATEMENT : 2
DNAME LOC
ACCOUNTING NEW YORK
1 row selected.
TURNER CURSOR STATEMENT : 2
CURSOR STATEMENT : 2
DNAME LOC
SALES CHICAGO
1 row selected.
ADAMS CURSOR STATEMENT : 2
CURSOR STATEMENT : 2
DNAME LOC
RESEARCH DALLAS
1 row selected.
JAMES CURSOR STATEMENT : 2
CURSOR STATEMENT : 2
DNAME LOC
SALES CHICAGO
1 row selected.
FORD CURSOR STATEMENT : 2
CURSOR STATEMENT : 2
DNAME LOC
RESEARCH DALLAS
1 row selected.
MILLER CURSOR STATEMENT : 2
CURSOR STATEMENT : 2
DNAME LOC
ACCOUNTING NEW YORK
1 row selected.
14 rows selected. -
Use of Where and having clause
Hi all,
I always have a doubt about use of HAVING and WHERE clause,
suppose I have table T1 with only one column C1
CREATE TABLE T1
(C1 VARCHAR2(1) );
which having data by following INSERT scripts
INSERT INTO T1 VALUES('A');
INSERT INTO T1 VALUES('B');
INSERT INTO T1 VALUES('C');
INSERT INTO T1 VALUES('A');
INSERT INTO T1 VALUES('B');
INSERT INTO T1 VALUES('A');
Now I want result as follows
C1 ==== COUNT(C1)
==============
B ===== 2
A ===== 3
So out of query 1 and 2 which approach is right ?
1) SELECT C1,COUNT(C1) FROM T1
WHERE C1<>'C'
GROUP BY C1
ORDER BY C1 DESC;
2) SELECT C1,COUNT(C1) FROM T1
GROUP BY C1
HAVING C1<>'C'
ORDER BY C1 DESC;
Edited by: user13306874 on Jun 21, 2010 2:36 AMIn SQL, it's always best to filter data at the earliest moment possible.
In your example the WHERE clause would be that moment:
SQL> explain plan for
2 select c1,count(c1)
3 from t1
4 where c1 != 'C'
5 group by c1
6* order by c1 desc;
Explained.
SQL> select * from table(dbms_xplan.display);
PLAN_TABLE_OUTPUT
Plan hash value: 3946799371
| Id | Operation | Name | Rows | Bytes |
| 0 | SELECT STATEMENT | | 5 | 10 |
| 1 | SORT GROUP BY | | 5 | 10 |
|* 2 | TABLE ACCESS FULL| T1 | 5 | 10 |
Predicate Information (identified by operation id):
2 - filter("C1"!='C')
18 rows selected.
SQL>As you can see the filter is applied during the scan of T1.
Whereas in the HAVING case:
SQL> explain plan for
2 select c1,count(c1)
3 from t1
4 group by c1
5 having c1 != 'C'
6* order by c1 desc;
Explained.
SQL> select * from table(dbms_xplan.display);
PLAN_TABLE_OUTPUT
Plan hash value: 3146800528
| Id | Operation | Name | Rows | Bytes |
| 0 | SELECT STATEMENT | | 6 | 12 |
|* 1 | FILTER | | | |
| 2 | SORT GROUP BY | | 6 | 12 |
| 3 | TABLE ACCESS FULL| T1 | 6 | 12 |
Predicate Information (identified by operation id):
1 - filter("C1"!='C')
18 rows selected.
SQL>The scan is done after all groups have been computed: one of which was computed in vain, since it will be filtered away due to the HAVING clause.
In general I would use as a guideline: if you are not using aggregate functions in your HAVING clause predicate, then move that predicate to the WHERE portion of your query.
Edited by: Toon Koppelaars on Jun 21, 2010 11:54 AM -
Select stmts with Having Clause
Hi,
Can some body help me to improve the performance of the below query...
select t.seq_no,t.contract_id,t.date_from from test_plan_tab t
group by t.seq_no,t.contract_id,t.date_from
having (select count(*)
from test_plan_tab p
where p.contract_id = t.contract_id
and p.date_from = t.date_from) > 1
The having clause will reduce the performance of the above query I guess...
Thanks And Best Regards,
/Dinesh...If Seq_no is unique then try this
SELECT MIN(t.seq_no),contract_id,t.date_from,count(*) from test_plan_tab t
group by t.contract_id,t.date_from
HAVING COUNT(*) > 1or
you can try as fsitja said, but you can omit the group by as the partition has already been done on grouping columns
SELECT seq_no, contract_id, date_from
FROM (SELECT t.seq_no, t.contract_id, t.date_from, COUNT(*) over(PARTITION BY contract_id, date_from) tot
FROM test_plan_tab t)
WHERE tot > 1Regards,
Prazy -
Group By -- Having Clause related doubt.
Hello,
Can we Write/Use rather a 'Having Condition' Before a Group by Clause ..?
If Yes then How does it Work.. I mean a 'Having' is a WHERE clause (filter) on Aggregate results ...
SO how does Having works before grouping the Results..??Hi,
Aijaz Mallick wrote:
Hello,
Can we Write/Use rather a 'Having Condition' Before a Group by Clause ..?What happens when you try it?
If Yes then How does it Work.. I mean a 'Having' is a WHERE clause (filter) on Aggregate results ... Right; the HAVING clause is like another WHERE clause.
The WHERE clause is applied before the GROUP BY is done, and the aggregate functions are computed.
The HAVING clause is applied after the GROUP BY is done, and the aggregate functions are computed, so you can use aggregate functions in the HAVING clause.
SO how does Having works before grouping the Results..??The order in which clauses appear in your code isn't necessarily the order in which they are performed. For example,
SELECT job
, COUNT (*) AS cnt
FROM scott.emp
GROUP BY job;Does it confuse you that this query can reference COUNT (*) in the SLECT clause, which is before the GROUP BY clause?
The SELECT clause which always comes before the GROUP BY clause in code. That does not mean that the SELECT clause is completed before the GROUP BY clause is begun.
If the documentation says that clauses must be in a certain order, then use that order, even if your current version of Oracle allows them to be in a different order. There's no guarantee that the next version of Oracle will allow something that was always said to be wrong. -
How to have Having clause in Group by
Hi All,
While using aggregated function (max,min etc) on columns, the SQL generated automatically has the non aggregated columns in the group by clause. How to specify the Having condition ?
select a , max(b)
from t
group by a
having <condition>
TIA...Hi,
In your interface drag and drop the source column into canvas for which you want to generate the HAVING clause.
It will create filters for those columns .Now use aggregation functions like SUM, MAX,MIN, AVG etc in that filter query .
The code generated will now contain the HAVING clause in it .
Thanks,
Sutirtha -
Group by clause and having clause in select
hi frnds
plz give me some information of group by and having clause used in select statement with example
thanksThe Open SQL statement for reading data from database tables is:
SELECT <result>
INTO <target>
FROM <source>
[WHERE <condition>]
[GROUP BY <fields>]
[HAVING <cond>]
[ORDER BY <fields>].
The SELECT statement is divided into a series of simple clauses, each of which has a different part to play in selecting, placing, and arranging the data from the database.
You can only use the HAVING clause in conjunction with the GROUP BY clause.
To select line groups, use:
SELECT <lines> <s1> [AS <a1>] <s2> [AS <a2>] ...
<agg> <sm> [AS <am>] <agg> <sn> [AS <an>] ...
GROUP BY <s1> <s2> ....
HAVING <cond>.
The conditions <cond> that you can use in the HAVING clause are the same as those in the SELECT clause, with the restrictions that you can only use columns from the SELECT clause, and not all of the columns from the database tables in the FROM clause. If you use an invalid column, a runtime error results.
On the other hand, you can enter aggregate expressions for all columns read from the database table that do not appear in the GROUP BY clause. This means that you can use aggregate expressions, even if they do not appear in the SELECT clause. You cannot use aggregate expressions in the conditions in the WHERE clause.
As in the WHERE clause, you can specify the conditions in the HAVING clause as the contents of an internal table with line type C and length 72.
Example
DATA WA TYPE SFLIGHT.
SELECT CONNID
INTO WA-CONNID
FROM SFLIGHT
WHERE CARRID = 'LH'
GROUP BY CONNID
HAVING SUM( SEATSOCC ) > 300.
WRITE: / WA-CARRID, WA-CONNID.
ENDSELECT.
This example selects groups of lines from database table SFLIGHT with the value LH for CARRID and identical values of CONNID. The groups are then restricted further by the condition that the sum of the contents of the column SEATSOCC for a group must be greater than 300.
The <b>GROUP BY</b> clause summarizes several lines from the database table into a single line of the selection.
The GROUP BY clause allows you to summarize lines that have the same content in particular columns. Aggregate functions are applied to the other columns. You can specify the columns in the GROUP BY clause either statically or dynamically.
Specifying Columns Statically
To specify the columns in the GROUP BY clause statically, use:
SELECT <lines> <s1> [AS <a 1>] <s 2> [AS <a 2>] ...
<agg> <sm> [AS <a m>] <agg> <s n> [AS <a n>] ...
GROUP BY <s1> <s 2> ....
To use the GROUP BY clause, you must specify all of the relevant columns in the SELECT clause. In the GROUP BY clause, you list the field names of the columns whose contents must be the same. You can only use the field names as they appear in the database table. Alias names from the SELECT clause are not allowed.
All columns of the SELECT clause that are not listed in the GROUP BY clause must be included in aggregate functions. This defines how the contents of these columns is calculated when the lines are summarized.
Specifying Columns Dynamically
To specify the columns in the GROUP BY clause dynamically, use:
... GROUP BY (<itab>) ...
where <itab> is an internal table with line type C and maximum length 72 characters containing the column names <s 1 > <s 2 > .....
Example
DATA: CARRID TYPE SFLIGHT-CARRID,
MINIMUM TYPE P DECIMALS 2,
MAXIMUM TYPE P DECIMALS 2.
SELECT CARRID MIN( PRICE ) MAX( PRICE )
INTO (CARRID, MINIMUM, MAXIMUM)
FROM SFLIGHT
GROUP BY CARRID.
WRITE: / CARRID, MINIMUM, MAXIMUM.
ENDSELECT.
regards
vinod -
HAVING clause error in JPA 2 examples
In Chapter 8: Query Language of the Pro JPA 2 Mastering the Java Persistence API book, the jpqlExamples WAR has this query:
SELECT e, COUNT(p)
FROM Employee e JOIN e.projects p
GROUP BY e
HAVING COUNT(p) >= 2
When executed, the following error occurs:
java.lang.IllegalArgumentException: An exception occurred while creating a query in EntityManager:
Exception Description: Error compiling the query [SELECT e, COUNT(p) FROM Employee e JOIN e.projects p GROUP BY e HAVING COUNT(p) >= 2], line 1, column 80: invalid HAVING expression [COUNT(p) >= 2] for query with grouping [GROUP BY e]. The HAVING clause must specify search conditions over the grouping items or aggregate functions that apply to grouping items.
I bring this us because I have an application which is getting the same error and need a fix. If the query is indeed legal in JPA 2, then why the error? If if it is my setup however, then I would like suggestions on fixing it. I am using GlassFish v3 (build 74.2), updated regularly with the Update Tool.The bug has been reopened. Now it says:
Reopening because there is some debate about whether this should be supported
by the spec. Some people read the spec to say the above query is allowed - I
am not convinced, but discussion can be appended to this bug if necessary.
This is Bug 308482, and I assume at least a few might want to take a look.
https://bugs.eclipse.org/bugs/show_bug.cgi?id=308482 -
Why Scalar Subquery expression cannot be used in HAVING clauses?
Hi All,
I'm new to SQL. I'm confused with Scalar Subquery.
Is there anyone who can answer me why Scalar Subquery expression cannot be used in HAVING clauses.
Can you show me a example?
Thanks very much,
Xianyi.Ye
Edited by: 908428 on 2012-1-16 下午7:24Hi,
908428 wrote:
Hi Frank,
Thank you for your quick reply. I also agree with your point.
But when I read the book, "OCA Oracle Database SQL Certified Expert Exam Guide",( link to illegal copies of book removed by moderator )
on Page 359, it said that
Scalar subquery expressions cannot be used in the following locations:
1. In CHECK constraints
2. In GROUP BY clauses
3. In HAVING clauses
4. In a function-based index (which is coming up in Chapter 11)
5. As a DEFAULT value for a column
6. In the RETURNING clause of any DML statement
7. In the WHEN conditions of CASE
8. In the START WITH and CONNECT BY clauses, which we discuss in
Chapter 16.7 and 8 are wrong. Scalar sub-queries can be used in WHEN conditions and START WITH and CONNECT BY clauses. (At least in Oracle 10.2. Is the book based on some earlier version?)
Edited by: BluShadow on 17-Jan-2012 09:08 -
This novice is having trouble with the AS clause...
I appreciate any help I can get. As you will probably be able to tell when I ask my question, I am a complete newbie when it comes to SQL. I just started a class in Database Design and I am already stuck.
Anyway, my question is this: why am I getting an error message when I execute my query? I hope I am providing all the necessary information. This is my SELECT statement:
SELECT ItemID, ItemPrice, DiscountAmount, Quantity, (ItemPrice * Quantity) AS [PriceTotal], (DiscountAmount * Quantity)
AS [DiscountTotal], ((ItemPrice-DiscountAmount) * Quantity) AS [ItemTotal]
FROM OrderItems
WHERE ItemTotal > 500
ORDER BY ItemTotal DESC
And this is the question asked of me:
Write a SELECT statement that returns these column names and data from the OrderItems table:
ItemID...........................The ItemID column
ItemPrice.......................The ItemPrice column
DiscountAmount...........The DiscountAmount column
Quantity.........................The Quantity column
PriceTotal.......................A column that’s calculated by multiplying the item price with the
quantity
DiscountTotal.................A column that’s calculated by multiplying the discount amount
with the quantity
ItemTotal........................A column that’s calculated by subtracting the discount amount from the item price and then multiplying by the quantity
Only return rows where the ItemTotal is greater than 500.
Sort the result set by item total in descending sequence.
I can tell the issue is with the ItemTotal column I created in my SELECT statement, but I don't know how to fix it. I could very well be wrong, but I thought that when I declared a temporary column using the AS clause, that I could use the title of
that column for the rest of the statement. I don't know how to post the database I am using on here, so I hope you don't need that. Oh, but when I execute the statement, the message says that the ItemTotal column doesn't exist. And when I
comment out the WHERE clause in my statement, it works fine.
Sorry for the long winded question and I eagerly away any help I can get. Thanks!Hi,
Derived tables can be used instead as well like so
Select * FROM( SELECT ItemID, ItemPrice, DiscountAmount, Quantity, (ItemPrice * Quantity) AS [PriceTotal], (DiscountAmount * Quantity)
AS [DiscountTotal], ((ItemPrice-DiscountAmount) * Quantity) AS [ItemTotal]
FROM OrderItems) mytable
WHERE [ItemTotal] > 500
ORDER BY [ItemTotal] DESC
Hope this helps
Thanks
Bhanu -
Urgent Group by Having Clause Fails in Oracle and Works in Sybase
Hello EveryBody I need to select curve data of curve whose date is maximum in that curve so say if i ahve
so if records are
curveid curvename curvedate
1001 test1 12/12/1003
1001 test1 12/13/1003
1002 test2 12/12/2002
1002 test2 12/12/2004
I have query which run well in sybase but oracle screw up...My logic say having clause is use to filter the records of group so it should have worked in oracle.....
Here is query
select curveid,curvename from curve group by curveid having curvedate =max(curve_date)
This give "not a Group by " error in oracle....It work well in sybase...
ORA-00979: not a GROUP BY expression
I have query which use subquery to select these records but i don't want that to use that query
Please helpplease understand what I need the result
for each curve i need that data of that curve who date is max in that curve group
so say for 1001 there are two date 1/1/2001 and 1/1/2002
I need the data of curve 1001 with date 1/1/2002
Oracle should have some alternative solution for this....
If i have to use subquery I do have subquery
select a.curveid, b.curvename from curve a group by curveid having curvedate = (select max(curvedate) from curve where a.curveid=b.curveid group by curveid );
I don't want to use that ,,,
I want to solve my probelm using having and group/....
Main purpose of having is to filter the records from group result so IT SHOULD DO THAT WHY ORACLE GIVE ORA ERROR FOR
group by curve_id having curve_date=max(curve_date)
Creators of oracle please reply -
Subquery in dynamic where-clause
Hi,
i'm trying to build a dynamic sql-statement in OPEN SQL, which uses a subquery in the dynamic where-clause.
In the following example code the first select works fine, the second one raises an error.
report zerrorforum.
data:
l_var_anzahl
* No Error
select
count(*)
into
l_var_anzahl
from
t000 as t1
where
t1~mandt in ( select t2~mandt from t000 as t2 where t2~mandt = t1~mandt ).
* Error
select
count(*)
into
l_var_anzahl
from
t000 as t1
where
('T1~MANDT IN ( SELECT T2~MANDT FROM T000 AS T2 WHERE T2~MANDT = T1~MANDT )').
The Error Analysis says the following:
The exception, which is assigned to class 'CX_SY_DYNAMIC_OSQL_SEMANTICS', was
not caught and therefore caused a runtime error. The reason for the exception is:
The current ABAP program has tried to execute an Open SQL statement
which contains a WHERE, ON or HAVING condition with a dynamic part.
The part of the WHERE, ON or HAVING condition specified at runtime in
a field or an internal table, contains the invalid value "SELECT".
Is this behaviour documented anywhere? I didn´t find anything.
Or is it a bug?
Klaus-Dieter LueppensHi,
it's not possible. Here is a quote from ABAP documentation from dynamic WHERE condition.
A logical expression can be specified as a parenthesized data object cond_syntax that contains the syntax of a logical expression or is initial when the statement is executed. It has been possible since SAP Web AS 6.40 to specify all logical expressions dynamically, with the exception of the evaluation of a subquery.
Cheers -
Is there a way to use dynamic built string in the "from" clause
Hi all, im having one problem and now, im not sure how to solve it easily at all... :) Is there someone that would be so kind and put a eye on it? ..thx
I have plsql proc, in which i have a list of table_names. For each of that table i need to run a query that will retrieve me a list of values and for each of that value i need to do something.
If i can be more specific about the problem -> each of that table is built as key_column, value_columns, day,starttime. For a key per table there are 4 records per hour - every quarter. Im truncating those quarters to full-quarter (minutes => 0->14 = 0min; 15->29 = 15min, 30->44 = 30, 45->59=45)
example
i get for one key and specific hour four records at 15:01;15:16;15:31;15:46 => i truncate em to 15:00;15:15;15:30;15:45..Sometimes there is a problem with the tool that is generating those data for me, and one quarter could be moved a little - so i get data like 15:01;15:16;15:29;15:46 => after i truncate the times i get duplicates in second quarter. It also can happen like this : 23:00; 23:14; 23:29; 23:44; 23:59 => totaly bad => cos the last one supposed to be as 0:00 next day, ..and 23:14 as 23:15...So...that was a problem - and solution -> i wanted to create plsql that will find those hours in each table i ve defined, and for each problem hour i make some fixes - update the bad time ...
..and i have problem - can i put an dynamic built table_name in the "from" clause?
example how i wanted to do that:
declare
type t_objectName is table of varchar2(030) index by pls_integer;
l_tableName t_objectName;
begin
l_tableName(1) := 'tmphlrgl';
l_tableName(2) := 'tmprcfgl';
l_tableName(3) := 'tmprcfbs';
l_tableName(4) := 'tmpvlrgl';
for i in (select evtime from (select day,trunc_quarter(evtime) evtime,m_id from l_tableName(i) group by day,trunc_quarter(evtime),m_id having count(*)>1) order by evtime) loop
--some other conditions and the update...
end loop;
end;
/I cannot use the l_tableName(i) for FROM ...get an error...I was thinking to build it as dynamic sql and execute immediate into some kind of object that can store mutliple lines, from which i would in the FOR cycle get the data...But im not sure if this could be done in plsql...
thanks for your time and help..
d.declare
c sys_refcursor;
begin
for i in 1..4 loop
open c for 'day,trunc_quarter(evtime) evtime,m_id
from ' || l_tableName(i) ||
'group by day,trunc_quarter(evtime),m_id having
count(*)>1) order by evtime';Just to high light SELECT is missing that all
OPEN c FOR ' SELECT day,trunc_quarter(evtime) evtime,m_id
FROM' || l_tableName(i) ||
'GROUP BY day,trunc_quarter(evtime),m_id HAVING count(*)>1) ORDER BY evtime';
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