PL/SQL :: Sql Query To Build Average Value
Jul 18, 2013
I'm trying to build a query capture the below information. Table looks something like below .
RoomSubjectStudentsA1Science10A1Maths20B1Science15B2English25C1Deutsch20A1French15C1English10
How can i write a query so that i takes the average of students in each room and display the output? I need to write a query so that it also picks up any new rooms and students added. Average is sum of total students in room by number of times each room is specified.
eg: A1 is listed 3 times a the result would be 10+20+15 divided by 3.
A1 B1 B2 C115 15 20 15
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Aug 10, 2013
I need to calcaulate the salary avarage for three days prior, leaving the current row. That should happen to every row moving back words.I have given all the details.
create table Employee(
ID VARCHAR2(4 BYTE) NOT NULL,
name varchar(20),
Start_Date DATE,
Salary Number(8,2),
mv_avg number(8,2)
[code]....
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May 2, 2013
I have the following query that creates sums by week.
SELECT cidterr.rnam,
cidterr.rnum,
cidterr.tnam,
cidterr.tnum,
[code]...
I want to convert this query to just return a single line for -cidterr.rnam, cidterr.rnum, cidterr.tnam, cidterr.tnum
With an average sum by week. Similar to how if I did a sum by week from the original query and placed the results into an excel pivot and said show total as average.
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Mar 17, 2010
i have a doubt in building a query.
I have a table with fields
job_no activity Date
101 anchorage 20/01/2010
102 berthing 25/01/2010
103 sailing 29/01/2010
If i want to know the status of the ship on the date '22/01/2010' It has to show as 'anchorage', becoz on '25/01/2010' only it came to berthing from anchorage. How to write a query to achieve this.
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Sep 27, 2011
I have a table with products (xPRODUCT), dates (xDATE) and parameters (xPARAMETER). Now I want to calculate the rolling 12 month average of the parameters over all products for all dates. I tried this:
select xDATE,
avg(xPARAMETER) over ( order by xDATE
range between numtodsinterval(365,'day')
preceding and current row )
[Code]....
... but this does not work. How can I do this?
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May 9, 2010
I wish to query the pro_vitual_bytes by hourly average by server name from 04/01/2010 to 04/02/2010. how i going to perform the query.
SERVER_NAME DATE_TIME PRO_VITUAL_BYTES
MLYORABA04/01/2010 00:00:402,238,312,448.00
MLYORABA04/01/2010 00:01:402,241,458,176.00
MLYORABA04/01/2010 00:02:402,238,312,448.00
MLYORABA04/01/2010 00:03:402,241,458,176.00
[Code]....
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Apr 5, 2011
How To Calculate Average in Forms 6i for example a summary column named (Amount = 5000) and i want to calculate 15% average of this amount i want to calculate it like summary column .
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Jun 17, 2010
how to calculate the average of the time in th e HH:MM:SS format stored database table.. column contains hundreds of time values and need to table the avergae of it
my col look like,and column is declared as timestamp(6).
MY COL
------
1:13:00
1:06:00
0:43:00
0:47:00
0:32:00
0:19:00
0:39:00
0:46:00
0:56:00
1:39:00
[Code]...
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Nov 23, 2012
Version : 11g
I have a table with the following format and data
Serial no exp_Date exp_type exp_amount
1 01-nov-2012 Rent 10000
2 02-nov-2012 gas 250
3 02-nov-2012 insurance 9500
.
.
.
I want to create a sql output for a yearly view in the format
exp_type JAN FEB MAR APR ..... NOV DEC TOTAL AVERAGE PROJECTED
Rent 10000 10000 10000 10000 10000 10000 120000 10000 120000
gas 250 250 250 250 250 250 3000 250 3000
.
.
Now a couple of things in this
1. the average gives the average for the year, so lets say its start of 2013 and we are in feb, there will not be any values for the remaining months, so it should do the average for that exp_type for Jan and Feb based on the exp_amount entered against that type and show what is the expected average. Similary, projected will that average amount and mulitply it by 12 to show the exp amount expected based on current expenses
I was able to come up with the following sql to get the sum based on months, was not sure about average, total and projected
SELECT exp_type
, SUM (CASE WHEN to_char(exp_date,'Mon') = 'Jan' THEN exp_amt END) AS Jan
, SUM (CASE WHEN to_char(exp_date,'Mon') = 'Feb' THEN exp_amt END) AS feb
, SUM (CASE WHEN to_char(exp_date,'Mon') = 'Mar' THEN exp_amt END) AS Mar
, SUM (CASE WHEN to_char(exp_date,'Mon') = 'Apr' THEN exp_amt END) AS Apr
, SUM (CASE WHEN to_char(exp_date,'Mon') = 'May' THEN exp_amt END) AS May
[Code]....
getting the correct avg, total and projected fields also in the same sql?
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Jul 26, 2013
,I've some database in 11.2 RAC on AIX.I was analyzing the root causes of eviction.Looking AWR Report before the reboot I see:
DB1 Host CPU (CPUs: 6 Cores: 3 Sockets: )~~~~~~~~ Load Average Begin End %User %System %WIO %Idle --------- --------- --------- --------- --------- --------- 4.18 12.33 60.9 12.6 1.6 26.5 Instance CPU~~~~~~~~~~~~ % of total CPU for Instance: 27.4 % of busy CPU for Instance: 37.3 %DB time waiting for CPU - Resource Mgr: 10.6 DB2 Host CPU (CPUs: 6 Cores: 3 Sockets: )~~~~~~~~ Load Average Begin End %User %System %WIO %Idle --------- --------- --------- --------- --------- --------- 3.77 13.93 60.7 12.5 1.6 26.7 Instance CPU~~~~~~~~~~~~ % of total CPU for Instance: 6.9 % of busy CPU for Instance: 9.5 %DB time waiting for CPU - Resource Mgr: 0.0
Do you think these value ar high? This is vmstats at the time of reboot:
DATARUNBCKAVMFREPREPPIPPOPFRPSRPCYFINFSYFCSCUSCSYCIDCWA07/21/2013 00:08:173107.400.345579.92308100003.292187.01019.56084160007/21/2013 00:08:171717.390.187589.884017600003.681169.99421.48281190007/21/2013 00:08:172717.402.121577.816011500003.150157.21018.50384160007/21/2013
[code]...
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Dec 15, 2011
I have to procedure that computes number of project, and average working hours of employees where employee id is passed as a parameter to the procedure. If the average working hours is less than 10 then employee's salary remain the same, otherwise check if number of project is less than 4 then 5% of salary, else 10% of salary is added to the salary.
my tables are:
CREATE TABLE employee(
empid number(5),
empname varchar(20),
address varchar(20),
no_of_dependents number(5),
deptno number(5),
CONSTRAINT EMPLOYEE_PKEY PRIMARY KEY(empid),
CONSTRAINT EMPLOYEE_FKEY FOREIGN KEY(deptno) REFERENCES department(deptno));
[code]...
the problem is i have to use only 2 cursors - 1 for select and 1 for update.
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Jul 22, 2012
I want to write a sql qeuery to get result similar to expected average column as shown in sheet.
Record can be uniquely identified by columns ID, PRODUCT and OFFICE. I want to calculate average for each date considering the same record does not exists earlier i.e. I want to consider the latest vote while calculating average. E.g.
Average till date 1/1/2011 is Avg (2, 4, 3) = 3 (as no repeating vote value exists)
Average till date 2/1/2011 is Avg (4, 3, 5, 3) = 3.75 (excluding vote value 2 as 122_UK_LONDON was provided his vote earlier, so considered latest vote value i.e. 5)
Average till date 3/1/2011 is Avg (3, 5, 3, 6, 5, 8 ) = 5 (excluding vote value 2 for 122_UK_LONDON and vote value 4 for 967_Europe_London)
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Feb 27, 2013
Oracle Database 11g Enterprise Edition Release 11.2.0.1.0 - 64bit Production
PL/SQL Release 11.2.0.1.0 - Production
"CORE 11.2.0.1.0 Production"
TNS for HPUX: Version 11.2.0.1.0 - Production
NLSRTL Version 11.2.0.1.0 - Production
I have a problem related with hierarchical queries, I have this tree.
- a
/
b c
/ |
d e fI need to calculate an average per node but using always the child's results for example: Only leafs will have values:
d = 10
e = 20
f = 30
c = 40So the expected result is:
d = 10
e = 20
f = 30
c = 40
b = (10(d) + 20(e) + 30(f)) / 3 (number of child nodes) = 20
a = (20(b) + 40(c)) / 2 (number of child nodes) = 30.
I have tried with recursive queries, hierarchical queries, I guess it's possible with model too but I can't produce the exact results that I need. Maybe in fact there is a very simple solution but I cannot figure it.
Here is an auxiliary WITH that you can use to start your tests:
WITH tree AS
(
SELECT 'd' child, 'b' parent FROM dual UNION ALL
SELECT 'e' child, 'b' parent FROM dual UNION ALL
SELECT 'f' child, 'b' parent FROM dual UNION ALL
SELECT 'b' child, 'a' parent FROM dual UNION ALL
SELECT 'c' child, 'a' parent FROM dual UNION ALL
SELECT 'a' child, null parent FROM dual
[code]....
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Jun 10, 2011
I've got values for each workday of month in table. Chief said we don't load values of weekend because of space and time economy. Weekend value is copy of last workday. How do I count average for month in this case? Technical task in Excel worksheet consist of each day of month, so average value is 14 689 262,86. I should get the same result in my query. My example below shows values, 0 is workday (present in table), 1 is weekend (absent in table)..
select 12230427, 0 from dual
union all
select 11960157, 0 from dual
union all
select 12965902, 0 from dual
union all
select 13939736, 0 from dual
[Code]...
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Mar 4, 2012
from last two weeks we are receiving rhe below database alert on our second NODE (RAC ENV).
Global cache Average CR get time " is at .61789
Threshold is set on >.5 (M.Second).
me to figure this out because i really dont know the nature of this alert. what value i can set for the warning threshold.
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Jun 28, 2012
I want to read a record that has 6 columns
RECORD |Col1 |Col2 |Col3 |Col4 |Average |Standard Deviation
0001____|Null_|5___|8___|10__|8.75___|2.986079
With SQL I want to calculate Average and Standard Deviation.
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Jul 28, 2010
I installed oracle11g on my computer ,when im going to build demo its not working.its giving a error like this.
sys>conn u1/u1
error accesing PRODUCT_USER_PROFILE
warning product user profile information not loaded
you may need to run PUPBLD.SQL AS SYSTEM
connected
u1>@?/sqlplus/demo/demobld unable to open file "/oraeng/app/oracle/product/11.1.0/sqlplus/demo/demobld.sql"
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Apr 25, 2011
We have developed a code which builds a trigger on a atble dynamically at run time usinf Dynamic SQL command Execute immediate.
create or replace
PROCEDURE GENERATE_TRIGGER
(
P_TNAME IN VARCHAR2
[Code].....
I am not usre if the error is due to insufficient privileges as we are able to build tabl;e in the system dynamically using the above mentioned command.
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Aug 3, 2011
I am an absolute neophyte at this. I'm fairly good at SQL, but have not administrated a database before.
I am trying to take a backup from our production database and restore it to a fresh install of Oracle 10.2 on a Windows 2003 server using RMAN - but I am not getting very far. Software versions are all the same. I have access to the manuals, but it seems like every link I follow adds more questions than it answers.
I have gone through the wizard and set up oracle on the new box - that all seemed to go smoothly. In order for this to work, do I need to set up the database with the same DBID as the one in the backup files? Or is there a way to import the data from the backup and have it build the database from those files?
I'm not sure I'm even asking the right questions. Do any of y'all know of a tutorial that would walk me through this process step by step?
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May 3, 2013
We have an requirement to create xml data for entire database (selected tables) which are in hierarchy.Procedure should read node_mapping table having parent and child tables relationship info and build XML Select statement.
Currently it is building SQL statement whenthere are one parent having multiple childrens i.e Dept having emp, emp_act, emp_rsch..but when child node are having childrens then it is not working - it has to repeatedly call this procedure (recursive) and build below given SQL statement.
1. To change procedure to build xml sql statement when there are multiple childrens to child nodes (hierarchy)
2. To format the output in xml data
We are using ORACLE 11G and WINDOWS 7
CREATE TABLE node_mapping
(
NODE_ID NUMBER(5) PRIMARY KEY,
PARENT_NODE VARCHAR2(100),
CHILD_NODE VARCHAR2(100),
PARENT_NODEID VARCHAR2(50),
CHILD_NODEID VARCHAR2(50)
[code]....
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May 8, 2013
We have an requirement to build (XML) Select statement dynamically based on the mapping table (which is in hierarchy format)
I have removed xml keyword, so query will not work. but need procedure which will recursively check mapping table (parent and child table) and build below given select statement.
Example 1:
SELECT dname,
(select ename,
[Code]....
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Jun 19, 2012
we get daily a full dump from our customer. We have to build the differences of tables (deltas) and load them in separate tables.
There some questions, requiremenst and restrictions:
1) Is it possible the merge the dumps ?
2) How to build the differences as the easiest ?
3) The whole process (import, merge, extract) should be run in batch.
4) We have only a solid knowledge and liitle time for doing.
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Jun 21, 2011
select a default table in oracle as we do in teradata, below is the syntax of teradata.
select 'XXX' as Curr,
'BUS OBJ ' as acq_nm
from (select 1 as one) Union
select 'ALL' as Curr, from (select 1 as one).
so I need the same select in oracle.
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Feb 26, 2010
I want to build a hierarchy and output it into a sub-report. Since the data in few hierarchy fields exceeds 4000 characters and therefore m getting the ORA-01489 error and the entire report was failing.
So i have used user aggregate function to print the out put. I have also used row_number() to print sequence in query output.
the query that i am using is
SELECT pr_id,
REPLACE (REPLACE (twadmin.STRAGG2(distinct RPAD (to_number(curr), 2, ' ') || ')' || NVL (DECODE (medical, NULL, clinical, medical), 'UNKNOWN') || '###' ||
RPAD (' Causality as per rport ', 50, ' ') || ': ' || reporter || '###' ||
RPAD (' Causality as per report2 ', 50, ' ') || ': ' || hospital || '###' ||
RPAD (' Dechallenge', 50, ' ') || ': '|| dechallenge || '###' ||
RPAD (' Rechallenge', 50, ' ') || ': '|| rechallenge), ',', CHR(10)), '###', CHR (10)) causality
[code]......
the output of the query is
ID Causality
-- ------
3755101 )Blisters (Blister)
Causality as per report1: Probable
Causality as per report2: Possible
Dechallenge : Not Applicable
Rechallenge : Not Applicable
2 )Mental status changes (Mental status changes)
[code].......
but the expected out put is
ID Causality
-- ------
3755101 )Blisters (Blister)
Causality as per report1: Probable
Causality as per report2: Possible
Dechallenge : Not Applicable
Rechallenge : Not Applicable
[code]........
but it should be as
1)
2)
3)
..
..
..
10)
11)
12) for the values in the causality field
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Dec 18, 2012
I have created a VIEW with a column containing user-defined aggregated values(stores the output in varchar2 data type). Some of the records exceed the maximum limit, for example varchar2(4000). I was suggested a PL/SQL function to check the length and build a string if necessary..
CREATE OR REPLACE
FUNCTION SUBURL(col1 IN VARCHAR2, col2 IN varchar2)
RETURN varchar2
[Code].....
Here, I got the following error,
Error(4,25): PLS-00103: Encountered the symbol "," when expecting one of the following:
:= . ( @ % ; not null range default character
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Jun 27, 2012
I have built a Menu Framework using the following instructions.
[URL]........
I am facing 2 problems.
1. If the user is in a child application and clicks logout. He is taken to the login screen of the master application (Correct), but once he enters login details, he is returned to the child application (False). I think he should be returned to the Home page of the Master application.
2. If I set Session Timeouts in the Edit Security Attributes of the applications. Then if the user is timed out, he is sent to the login screen of the Master application (Correct). If he then logs in, he is sent the the Home page of the Master application (Correct).
Now if he clicks a link to a child application he is then sent back to the Master application login screen. He then has to login again. He is sent to the Master Home page and everything is then ok.
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Oct 16, 2010
My problem is only on Some Saturday's my Oracle server's Load average goes high (more than 300 ).
-- oracle version 11.2.0.1.0
-- runs on Sun solaris 10
-- Sun fire V 440
-- Sun storEdge 3315 connected to the server.
Same setup is working find with higher volumes without any problem but only on saturday's, that too not on all saturdays, some specific saturdays the load average goes high.
At the time nothing will be processed from the application side and the cpu utilisation goes high upto 95 %.
I am sending necessary information as follows.
vmstat 6 10
kthr memory page disk faults cpu
r b w swap free re mf pi po fr de sr s0 s1 s3 s4 in sy cs us sy id
3 0 0 28660024 6513408 285 212 2044 2 2 0 0 0 17 0 42 830 3469 1380 22 5 74
125 0 0 29027480 6156256 2 6 34 0 0 0 0 0 5 0 10 791 53770 30278 83 17 0
125 0 0 29027680 6157496 29 140 21 1 1 0 0 0 5 0 9 786 52756 30309 83 17 0
116 0 0 29031600 6159896 24 125 0 0 0 0 0 7 3 0 5 819 54081 31069 83 17 0
[code]....
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Apr 18, 2013
I´m monitoring a 11g database with OEM. I have a couple of questions regarding the Average Active Sessions chart:
- What does the line 'CPU core' means? The DB is running in a virtual server with 8 CPUs. However, the line 'CPU core' is in 1. Does it mean that Oracle is just using 1 CPU?
- What represents the '99th percentile' line? The chart shows several sessions above that line, something is not working well, isn't it?
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Jul 8, 2010
Is it possible to build index partition in parallel?I tried following command
alter index <index_name> rebuild partition <partition name> online parallel 5;
It executed without complaining, but want to know if index partitions can be build in parallel?
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Oct 9, 2009
I am trying to modify an existing form in oracle apps. I copied all the necessary objects and modified the form. I can compile the object in windows. When I am trying to compile the object in Linux server using SSH I am getting the following error.
FRM-91500: Unable to start/complete the build.I am using the following command for compile
f60genm userid=apps/apps batch=yes module= FORMNAME.fmb module_type=form.
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