Help with a group query

I have the following table
EX_ID
EX_NAME
EX_SURNAME
EX_FLAG
1
TOM
JONES
Y
1
JIM
SLIM
N
1
BO
SELECTA
Y
2
AIRES
BEARS
N
2
JIM
DAVIES
Y
3
PAUL
BALL
N
3
YOU
KNOW
N
I need to create a query that only displays one of the ex_id’s, it doesn’t matter which one. When the query has been run it will look like below:
EX_ID
EX_NAME
EX_SURNAME
EX_FLAG
1
TOM
JONES
Y
2
AIRES
BEARS
N
3
YOU
KNOW
N
Can anyone help with this query?

SELECT * FROM
SELECT *,ROW_NUMBER () OVER (PARTITION BY ex_id ORDER BY (SELECT 0))
FROM tbl
) AS Der WHERE rn=1
Best Regards,Uri Dimant SQL Server MVP,
http://sqlblog.com/blogs/uri_dimant/
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select single vkorg abgru from ZADS into it_rej.
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Hello Everybody!
Thank you for all your response!
I had changes this work area into Internal table and changed the select query. PLease let me know if this causes any performance issues?
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I had removed the select single and insted of using the Structure it_rej, I had changed it into Internal table
select vkorg abgru from ZADS into it_rej.
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DATA : BEGIN OF IT_REJ,
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I need help with a SELECT query - help!

Hello, I need help with a select statement.
I have a table with 2 fields as shown below
Name | Type
John | 1
John | 2
John | 3
Paul | 1
Paul | 2
Paul | 3
Mark | 1
Mark | 2
I need a query that returns everything where the name has type 1 or 2 but not type 3. So in the example above the qery should bring back all the "Mark" records.
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Or, if the types are sequential from 1 upwards you could simply do:-
SQL> create table t as
2 select 'John' as name, 1 as type from dual union
3 select 'John',2 from dual union
4 select 'John',3 from dual union
5 select 'Paul',1 from dual union
6 select 'Paul',2 from dual union
7 select 'Paul',3 from dual union
8 select 'Paul',4 from dual union
9 select 'Mark',1 from dual union
10 select 'Mark',2 from dual;
Table created.
SQL> select name
2 from t
3 group by name
4 having count(*) <= 2;
NAME
Mark
SQL>Or another alternative if they aren't sequential:
SQL> ed
Wrote file afiedt.buf
1 select name from (
2    select name, max(type) t
3    from t
4    group by name
5    )
6* where t < 3
SQL> /
NAME
Mark
SQL>Message was edited by:
blushadow

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Hi,
I have another query running slow when executed from cognos. It is also not returning any output continues to execute,
with "Union15" as (
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from "MDM_DBA"."EES_ENERGY_MASTER" "EES_ENERGY_MASTER", "MDM_DBA"."EES_CONS_PROV" "EES_CONS_PROV"
where "EES_ENERGY_MASTER"."DISC_MON">=2006101 and "EES_ENERGY_MASTER"."PDCT_CAT"='Energy' and substr("EES_ENERGY_MASTER"."ICD_CODE", 1, 2)='68-gyn' and "EES_ENERGY_MASTER"."MANUFACTURER"='EES' and "EES_CONS_PROV"."CONS_06_09_YN" in ('N', 'Y') and "EES_ENERGY_MASTER"."PROV_ID"="EES_CONS_PROV"."PROV_ID" union
select CASE WHEN(substr(to_char(FLOOR("MVW_EES_ICD_STATS"."DISC_QTR")), 1, 4) IS NULL) OR (case substr(to_char(FLOOR("MVW_EES_ICD_STATS"."DISC_QTR")), 5, 1) when '1' then 'Q1' when '2' then 'Q2' when '3' then 'Q3' when '4' then 'Q4' end IS NULL) THEN NULL ELSE (substr(to_char(FLOOR("MVW_EES_ICD_STATS"."DISC_QTR")), 1, 4)||case substr(to_char(FLOOR("MVW_EES_ICD_STATS"."DISC_QTR")), 5, 1) when '1' then 'Q1' when '2' then 'Q2' when '3' then 'Q3' when '4' then 'Q4' end ) END "QUARTER", 0 "Cases_Using_Energy", count("MVW_EES_ICD_STATS"."CASES") "Total_Cases"
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where "MVW_EES_ICD_STATS"."DISC_QTR">=20061 and "MVW_EES_ICD_STATS"."ICD_GROUP"='68-gyn' and "EES_CONS_PROV"."CONS_06_09_YN" in ('N', 'Y') and "EES_HOSP_CHG_PROV"."PDCT_CAT"='Energy' and "EES_HOSP_CHG_PROV"."MANUFACTURER"='EES' and "MVW_EES_ICD_STATS"."PROV_ID"="EES_CONS_PROV"."PROV_ID" and "MVW_EES_ICD_STATS"."PROV_ID"="EES_HOSP_CHG_PROV"."PROV_ID"
group by CASE WHEN(substr(to_char(FLOOR("MVW_EES_ICD_STATS"."DISC_QTR")), 1, 4) IS NULL) OR (case substr(to_char(FLOOR("MVW_EES_ICD_STATS"."DISC_QTR")), 5, 1) when '1' then 'Q1' when '2' then 'Q2' when '3' then 'Q3' when '4' then 'Q4' end IS NULL) THEN NULL ELSE (substr(to_char(FLOOR("MVW_EES_ICD_STATS"."DISC_QTR")), 1, 4)||case substr(to_char(FLOOR("MVW_EES_ICD_STATS"."DISC_QTR")), 5, 1) when '1' then 'Q1' when '2' then 'Q2' when '3' then 'Q3' when '4' then 'Q4' end ) END)
select "T1"."C0" "levelkey", "T1"."C1" "Cases_Using_Energy", "T0"."C0" "Cases_Using_Energy1", "T1"."C2" "Total_Cases"
from (
select count(distinct "Union15"."Cases_Using_Energy") "C0"
from "Union15") "T0", (
select "Union15"."QUARTER" "C0", count(distinct "Union15"."Cases_Using_Energy") "C1", sum("Union15"."Total_Cases") "C2"
from "Union15"
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PLAN_TABLE_OUTPUT
| Id | Operation                             | Name                        | Rows | Bytes |TempSpc| Cost |
|   0 | SELECT STATEMENT                      |                              |     1 |    50 |       |    22 |
|   2 | TEMP TABLE TRANSFORMATION            |                              |       |       |       |       |
|   1 |   RECURSIVE EXECUTION                 | SYS_LE_2_0                   |       |       |       |       |
|   0 |    INSERT STATEMENT                   |                              | 3053 |   128K|       | 1372 |
|   1 |     LOAD AS SELECT                    |                              |       |       |       |       |
|   2 |      SORT UNIQUE                      |                              | 3053 |   128K|   376K| 1372 |
|   3 |       UNION-ALL                       |                              |       |       |       |       |
|* 4 |        HASH JOIN                      |                              | 3052 |   128K|       |   185 |
|* 5 |         TABLE ACCESS FULL             | EES_CONS_PROV                |   622 | 3732 |       |     2 |
|* 6 |         TABLE ACCESS BY INDEX ROWID   | EES_ENERGY_MASTER            | 3055 |   110K|       |   182 |
|* 7 |          INDEX RANGE SCAN             | IDX_ENERGY_PDCT_CAT          | 1978 |       |       | 2478 |
|   8 |        SORT GROUP BY                  |                              |     1 |    40 |       | 1160 |
|* 9 |         TABLE ACCESS BY INDEX ROWID   | EES_HOSP_CHG_PROV            |     4 |    72 |       |     1 |
| 10 |          NESTED LOOPS                 |                              |     1 |    40 |       | 1157 |
| 11 |           NESTED LOOPS                |                              |     1 |    22 |       | 1156 |
|* 12 |            TABLE ACCESS BY INDEX ROWID| MVW_EES_ICD_STATS            |     1 |    16 |       | 1155 |
|* 13 |             INDEX RANGE SCAN          | MVWICDSTATS_DISCQTR_IDX      |    13M|       |       | 26068 |
|* 14 |            TABLE ACCESS BY INDEX ROWID| EES_CONS_PROV                |     1 |     6 |       |     1 |
|* 15 |             INDEX UNIQUE SCAN         | EES_CONS_PROV_PK             |     1 |       |       |       |
|* 16 |           INDEX RANGE SCAN            | PROV_ID_IDX_2                |    65 |       |       |     1 |
|   3 |   MERGE JOIN CARTESIAN                |                              |     1 |    50 |       |    22 |
|   4 |    VIEW                               |                              |     1 |    13 |       |     3 |
|   5 |     SORT GROUP BY                     |                              |     1 |    13 |       |       |
|   6 |      VIEW                             |                              | 3053 | 39689 |       |     3 |
|   7 |       TABLE ACCESS FULL               | SYS_TEMP_0FD9D68B3_C112F95D | 3053 |   110K|       |     3 |
|   8 |    VIEW                               |                              |     1 |    37 |       |    19 |
|   9 |     SORT GROUP BY                     |                              |     1 |    37 |       |    19 |
| 10 |      VIEW                             |                              | 3053 |   110K|       |     3 |
| 11 |       TABLE ACCESS FULL               | SYS_TEMP_0FD9D68B3_C112F95D | 3053 |   110K|       |     3 |
Predicate Information (identified by operation id):
   4 - access("EES_ENERGY_MASTER"."PROV_ID"="EES_CONS_PROV"."PROV_ID")
   5 - filter("EES_CONS_PROV"."CONS_06_09_YN"='N' OR "EES_CONS_PROV"."CONS_06_09_YN"='Y')
   6 - filter("EES_ENERGY_MASTER"."DISC_MON">=2006101 AND SUBSTR("EES_ENERGY_MASTER"."ICD_CODE",1,2)='68-gyn'
              AND "EES_ENERGY_MASTER"."MANUFACTURER"='EES')
   7 - access("EES_ENERGY_MASTER"."PDCT_CAT"='Energy')
   9 - filter("EES_HOSP_CHG_PROV"."PDCT_CAT"='Energy' AND "EES_HOSP_CHG_PROV"."MANUFACTURER"='EES')
12 - filter("MVW_EES_ICD_STATS"."ICD_GROUP"='68-gyn')
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15 - access("MVW_EES_ICD_STATS"."PROV_ID"="EES_CONS_PROV"."PROV_ID")
16 - access("MVW_EES_ICD_STATS"."PROV_ID"="EES_HOSP_CHG_PROV"."PROV_ID")
Please help with some solution.

OK: the third parameter of the SUBSTR function indicates the (maximum) length of the returnd string.
Therefore SUBSTR("EES_ENERGY_MASTER"."ICD_CODE",1,2) could possibly be '68' , but never '68-gyn'.
'68-gyn' is just 4 characters too long.
Urs

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Hi,
rogers42 wrote:
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First off, you need to get the database tables so that there is a relationship between them.
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sum(ActiveHRS)/sum(AvailHRS) as RATE
from
select device,time_stamp,
case when usage >0 then 1
else 0 end as ActiveHRS,
'1' as AvailHRS
from
select device,time_stamp,
sum(case
when state = 9 then 0
when state = 0 then 0
else 1 end) as usage
from A
where to_char(time_stamp,'HH24') >= '09'
and to_char(time_stamp,'HH24') <= '19'
and to_char(time_stamp, 'D') in (2,3,4,5,6)
group by device, time_stamp
group by device,time_stamp

Here is the DDL :
desc rumi_all
Name     Null   Type
RUMI_DEVICE      VARCHAR2(20)
STATE         NUMBER(38)
TIME_STAMP      DATE
LOCATION       VARCHAR2(50) Here is some sample data :
RUMI_DEVICE   STATE   TIME_STAMP    LOCATION
10.45.28.86     0     15-JUN-10      WA-102
10.45.28.51     0     15-JUN-10      WA-102
10.45.28.63     0     15-JUN-10      WA-102
10.45.29.47     9     15-JUN-10      WA-120I used the below query to get the util for the hours 9am - 7pm
select rumi_device,time_stamp,
sum(ActiveHRS)/sum(AvailHRS) as RATE
from
select rumi_device,time_stamp,
case when usage >0 then 1
else 0 end as ActiveHRS,
'1' as AvailHRS
from
select rumi_device,time_stamp,
sum(case
when state = 9 then 0
when state = 0 then 0
else 1 end) as usage
from rumi_all
where to_char(time_stamp,'HH24') >= '09'
and to_char(time_stamp,'HH24') <= '19'
and to_char(time_stamp, 'D') in (2,3,4,5,6)
group by rumi_device, time_stamp
group by rumi_device,time_stamp
Acquired Out for the above query :
RUMI_DEVICE      TIME_STAMP     UTIL_RATE
10.45.29.47     15-JUN-10      0.234
10.45.28.63     15-JUN-10             0.123
10.45.29.47     15-JUN-10             0.987
10.45.29.47     16-JUN-10             0.23Desired output :I want 2 extra columns which shows util rate for the above condition i.e 9am - 7pm(core hours) and also opposite to that condition after 7pm - before 9am(say, non core hours)
Desired out put :
RUMI_DEVICE TIME_STAMP Core_Util_Rate   Non_Core_UtilRate
10.45.29.4    15-JUN-10      0.234              0.003
10.45.28.63   15-JUN-10     0.123              0.001
10.45.29.47   15-JUN-10              0.987              0.023
10.45.29.47   16-JUN-10              0.23                  0Hope this helps in answering my question , and also could you please share some document to learn writing nested sql's , i always had tough time in understanding this :-(

Help with processing groups of records in database

Ok i'm at work right now trying to finish up a project for my class and what it is is a basic class to process an inner join sql statement generated table from access and order it by the student id in order to group each student together. I have written the sql statement and logic to access the database and return the array of row objects to the command line so i know it is grouping and returning info properly. I have written the conditional if statement to get the gradePoints for A = 4, B = 3, C = 2, D = 1, and F = 0 in a class method (KEEP IN MIND THE GENERATED TABLE CONSISTS OF SID, NAME, COURSE#, COURSETITLE, AND LETTERGRADE) now I just need to process each group of students individually and calculate their overall gpa's. Here in lies the problem. I imagine i need to define current student variables as like
currentID = s[0].getStudentID();
currentName = s[0].getStudentName();
then loop through the values of the array with something like
for(int j = 0; j < s; ++j)
if(s[j].getStudentID != currentID)
Process the grade records for the group Then reset the
current student to the next in line with another variable
assignment like
currentID = s[j].getStudentID();
currentName = s[j].getStudentName();
}(end of if)
Process the row object for the student created by this loop and then add it to the output string
} (end of for loop)
Ok so where i need help is the logic to process the grade records for the individual groups and then processing the row object. We haven't gone over anything like this in class and it is the last thing on my list to to do so any help would be appreciated. Also, if you think i'm an idiot keep it to yourself please it's not fun for people who really need help and really would like to know for future reference how to do something to be belittled. Thanks again
Matt
Message was edited by:
djmd02

sorry i guess is hopuld explain this better...I know
sql relatively well and the sql statement for my
query string is rediculously long with two inner
joins and what it returns is the sid, name,
coursenumber, coursename, and lettergrade So if you know SQL so well, why haven't you created a ViEW using this "ridiculously long" query and made your life easier?
Two inner joins? Nothing extraordinary about that.
this query
generated table is then used to populate an array of
objects for each entry in the table. They are already
put in order depending on sid by the sql statement
(for example)
11111 matt deClercq 3380 intro to java A
11111 matt deClercq 3382 database management A
11112 john doe 3380 intro to java A>
and so on. The problem i am having is within the for
loop to detect the end of each student and process
their grades for each class and calculate the gpa for
the whole group of grades that that student has.SQL is a declarative language, not procedural. If you're "looping", it suggests to me that you're pulling all that data into the middle tier and doing the calculation in Java.
I'm suggesting that there's a perfectly good way to do this calculation in SQL without using your ridiculous query. You might be better served if you try and figure out what that is.
Hope this makes things a little more clear and makes
me look a little bit more intelligent than i seemStop worrying about what people think and concentrate on your problem. You're a student. It's unlikely that you're going to appear to be on the level of Bill Joy at this point in your career. I'd be a lot more impressed if you'd stop whining about how people perceive you.
%

Newbie - help with a SQL query for a bar chart - Originally posted in APEX

I originally posted this in the APEX forum but someone there suggested this is more of a SQL question. Anyone out there who can provide some assistance?
Hi,
I'm a new user on APEX with no real SQL knowledge and I'm trying to build a dashboard with charts into an existing APEX application. Based on another application, I have come up with the following SQL code:
select null link
, CATEGORY label
, count (decode(PROJECT_STATUS,'1',PROJECT_ID))"Active"
, count (decode(PROJECT_STATUS,'2',PROJECT_ID))"Complete"
, count (decode(PROJECT_STATUS,'3',PROJECT_ID))"On Hold"
, count (decode(PROJECT_STATUS,'4',PROJECT_ID))"Pipeline"
, count (decode(PROJECT_STATUS,'5',PROJECT_ID))"Pending Review"
from GRAPO_PROHEADTRK
where (PROJECT_STATUS='1' or PROJECT_STATUS='2' or PROJECT_STATUS='3' or PROJECT_STATUS='4' or PROJECT_STATUS='5' or PROJECT_STATUS='6')
group by CATEGORY
Order by COUNT(PROJECT_ID) DESC
The code from the other app was:
select null link
, FUNCTIONAL_AREA label
, count (decode(PROJECT_STATUS,'Active',PROJECT_ID))"Active"
, count (decode(PROJECT_STATUS,'Complete',PROJECT_ID))"Complete"
, count (decode(PROJECT_STATUS,'On Hold',PROJECT_ID)) "On Hold"
, count (decode(PROJECT_STATUS,'Recurring',PROJECT_ID))"Recurring"
, count (decode(PROJECT_STATUS,'Pipeline',PROJECT_ID))"Pipeline"
, count (decode(PROJECT_STATUS,'Not Approved',PROJECT_ID))"Not Approved"
from PM_V2
where LOB='S2S' and (FUNCTIONAL_AREA='Accounts Payable' or FUNCTIONAL_AREA='Expense' or FUNCTIONAL_AREA='Procurement' or FUNCTIONAL_AREA='Fixed Assets')
group by FUNCTIONAL_AREA
Order by COUNT(PROJECT_ID) DESC
I'm getting a "Failed to parse SQL query!" error when I try to run validation.
Is this enough info for some assistance? Any help would really be appreciated.
Thanks,
Rachel

Hi, Rachel,
user10774102 wrote:
I originally posted this in the APEX forum but someone there suggested this is more of a SQL question. Anyone out there who can provide some assistance?
Hi,
I'm a new user on APEX with no real SQL knowledge and I'm trying to build a dashboard with charts into an existing APEX application. Based on another application, I have come up with the following SQL code:
select null link
, CATEGORY label
, count (decode(PROJECT_STATUS,'1',PROJECT_ID))"Active"
, count (decode(PROJECT_STATUS,'2',PROJECT_ID))"Complete"
, count (decode(PROJECT_STATUS,'3',PROJECT_ID))"On Hold"
, count (decode(PROJECT_STATUS,'4',PROJECT_ID))"Pipeline"
, count (decode(PROJECT_STATUS,'5',PROJECT_ID))"Pending Review"
from GRAPO_PROHEADTRK
where (PROJECT_STATUS='1' or PROJECT_STATUS='2' or PROJECT_STATUS='3' or PROJECT_STATUS='4' or PROJECT_STATUS='5' or PROJECT_STATUS='6')
group by CATEGORY
Order by COUNT(PROJECT_ID) DESCIs there a problem with the code above?
It's curious that the WHERE clause includes "PROJECT_STATUS='6'", but there is no pivoted column for project_status='6', like there is for '1' through '5'. That's not necessarily a mistake, and it wouldn't raise an error in any case.
Instead of
where (PROJECT_STATUS='1' or PROJECT_STATUS='2' or PROJECT_STATUS='3' or PROJECT_STATUS='4' or PROJECT_STATUS='5' or PROJECT_STATUS='6')you could say
where PROJECT_STATUS IN ('1', '2', '3', '4', '5', '6')but that probably has nothing to do with your current problem.
The code from the other app was:
select null link
, FUNCTIONAL_AREA label
, count (decode(PROJECT_STATUS,'Active',PROJECT_ID))"Active"
, count (decode(PROJECT_STATUS,'Complete',PROJECT_ID))"Complete"
, count (decode(PROJECT_STATUS,'On Hold',PROJECT_ID)) "On Hold"
, count (decode(PROJECT_STATUS,'Recurring',PROJECT_ID))"Recurring"
, count (decode(PROJECT_STATUS,'Pipeline',PROJECT_ID))"Pipeline"
, count (decode(PROJECT_STATUS,'Not Approved',PROJECT_ID))"Not Approved"
from PM_V2
where LOB='S2S' and (FUNCTIONAL_AREA='Accounts Payable' or FUNCTIONAL_AREA='Expense' or FUNCTIONAL_AREA='Procurement' or FUNCTIONAL_AREA='Fixed Assets')
group by FUNCTIONAL_AREA
Order by COUNT(PROJECT_ID) DESC
I'm getting a "Failed to parse SQL query!" error when I try to run validation.Is that an Apex error message? Sorry, I don't know anything about Apex.
If you can't get a more specific error message from Apex, then try debugging this statement in SQL*Plus. When you get it fixed, then you can copy it back into Apex.
If this is a SQL problem, then you should be able to re-create the problem in pure SQL.
If you can't re-create the problem in pure SQL, then it's probably an Apex problem, and belongs in the Apex forum, not here.
I don't see anything obviously wrong with your code, but I can't tell if, for example, you spelled a column name wrong, or if something has the wrong data type
Is this enough info for some assistance? Any help would really be appreciated.It wiould be better if you posted a completE script that people could run to re-create the problem, and to test their ideas.
Whenever you have a problem, please post a little sample data (CREATE TABLE and INSERT statements, relevant columns only) from all tables involved.
Also post the results you want from that data, and an explanation of how you get those results from that data, with specific examples.
Always say which version of Oracle (and any other software, such as Apex) you're using.

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