I had some query.
Actually had some table with following information
Here A,B,C are the vendors and Code is 21 and Amount is mentioned
Code Vendor Amount
21 A 56
21 A 62
21 B 31
21 C 100
21 C 100
Want to display top three vendor for that Code based on Vendor Amount
Code Vendor Amount
21 C 200(100+100)
21 A 118(56+62)
21 B 31
How should i do this?
I have to load data file into a table. And the requirement is as below:
Input Data:
1234|20130815|20130822|This is a test, this is the the part
3456|20130823|20130809|This is a test
3456|20130823|20130809|This is a test
3456|20130823|20130809|This is a test
3456|20130823|20130809|Siva 1234
The data should be inserted only in two rows as below:
When Value in first 3 fields is same, 4th field should be appended to the existing value in table.
1234|20130815|20130822|This is a test, this is the the part
3456|20130823|20130809|This is a testThis is a testThis is a testSiva 1234
I'm having some trouble combining some data. I've done a lot of research into joins and merges, nothing really seemed to do what I needed. I could be over thinking it.
Basically, I want the query to look at the "info" table from a specified time-span (1 to 7). I want it to look at the source of the data and if it is "one_better" always use that data for that specific time. Otherwise, return the data from "one". The results don't care about the source of the data.
The "info" table I'm working with looks like this:
TIMEDATASOURCE
1DATA1one
1DATA1betterone_better
2DATA2one
3DATA3betterone_better
4DATA4one
4DATA4betterone_better
5DATA5 one
7DATA7one
I would like the results to look like this:
TIMEDATA
1DATA1better
2DATA2
3DATA3better
4DATA4better
5DATA5
7DATA7
I have to implement a new logic such that , Old logic which pulls data will stay in place.now New logic pull data form SAP . So i have implemented the new logic in to the existing cursor as below.
i.e.
Cursor new_sap
old_query
Union
New_query;
I have 3 new cursor like dis. How to process these old and new cursors in FOR loop.. Ex:
For c1 in C2(order_number)
if order_source is sap then ( dis filters old data which is not in SAP)
new query in cursor should process
else
old query in cursor should process
end if;
How will i do this programatically.
I have a table with 4 records with start_date and end_date fields
start_date end_date
1/1/2003 1/4/2005
1/1/2004 5/3/2006
1/1/2007 1/4/2008
1/1/2008 6/3/2009
as you see records 1,2 and records 3,4 have overlapping dates. I need to combine them to get continuous intervals. The result should be:
start_date end_date
1/1/2003 5/3/2006
1/1/2007 6/3/2009
Is it possible to do by SQL query?
A basic select and group by query I am optimising for my Database course has returned results that indicate it will perform better on a clustered index when returning a smaller number of rows (5% of the largest table) and on a hash clustered index when returning higher volumes (50% and 80%). I understand that it is possible to use more than one index type on a table to improve performance, but I am struggling to understand how I might establish a hash cluster and a cluster on the same table? and then use hints to drive the query down one access path or the other.
Site admin - this site is a very useful resource.
1. I Wnat to analyze the buffer cache hit ratio. This is what i did.
DECLARE
bufcac NUMBER(10, 2);
BEGIN
[Code]....
2. I would like to analyze the PGA and determine what percentage out of the maximum allocated PGA is being used. I tried the code below but can't find the percentage. Sad
SELECT NAME,
To_char(Decode(unit, 'bytes', VALUE / ( 1024 * 1024 ),
VALUE), '999,999,999.9') VALUE,
[Code]....
Apart from the little problem I have with number 2, not figuring out how to get the precentage seeing that all the data is store in the field VALUE.
I would also like to create a view that has both 1 and 2 in it, but whenever I try creating it, I got and error stating and INTO clause is expected.
I have three select queries. Each of them returns a single column. I want the result of these queries into a single table..
I tried this way..
select * from
(first select),(second select),(third select);
this gives duplicate rows...
Is there any way to combine an identifier and select statement in PL/SQL when using the insert into command?
e.g.
DECLARE
name := 'BOB';
BEGIN
insert into mytable(NAME, SLOWEST_LAP, FASTEST_LAP) name, (select min(time), max(time) from lLAP_TIMES);
END;
In the above statement I am trying to insert the identifier "name" (BOB) into MYTABLE.NAME, along with the result of the select query from the table LAP_TIMES ... min(time) into MYTABLE.SLOWEST_LAP, and, .... max(time) into MYTABLE.FASTEST_LAP.
If the above is possible in one statement how would I also combine an identifier, with two select statements into an "insert into" statement?
e.g.
name := 'BOB';
insert into mytable(NAME, SLOWEST_LAP, FASTEST_LAP, EVENT) name, (select min(time), max(time) from LAP_TIMES), (select race_event from MEET);
In the above example I am also trying to insert the result from MEET.RACE_EVENT into the column MYTABLE.EVENT
Is there a way to prevent Apex from combining labels into an "other" category in the charts?
View 4 Replies View RelatedI read that rownum is applied after the selection is made and before "order by". So, in order to get the sum of salaries for all employees in all departments with a row number starting from 1, i wrote :
select ROWNUM,department_id,sum(salary) from employees group by department_id
If i remove rownum, it gives the correct output. Why can't rownum be used here ?
The Table having 3 columns
col0col1 , col2
P112
P112
P102
P113
P115
I want to retrieve the changes rows only.
Output like
col0col1 , col2
P112
P102
P113
P115
in my sql we can use limit to select first 4 rows in the table then next 4 rows ,can oracle do that ?
I have fifty rows inside the table
select * from student where rownum between 0 and 4 order by stuid ->it work
select * from student where rownum between 5 and 9 order by stuid -> did not work
what is the correct way to do it ?
drop table test
/
create table test
(
lib varchar2(100)
)
/
insert into test values ('111/aaa/bbb/ccc');
insert into test values ('222/aaa/bbb/ccc');
insert into test values ('333+444/aaa/bbb/ccc');
insert into test values ('333/aaa/bbb/ccc');
insert into test values ('222+333+444/aaa/bbb/ccc');
insert into test values ('222+333+444+555/aaa/bbb/ccc');
I want to get this :
lib count
--------------- -----
111/aaa/bbb/ccc 1
222/aaa/bbb/ccc 3
333/aaa/bbb/ccc 4
444/aaa/bbb/ccc 3
555/aaa/bbb/ccc 1
I joined the forum just today, i need some tips on deleting the millions of rows from a huge table having 25 millions of rows.
View 4 Replies View Relatedwhat are the collections available in Oracle Plsql, what are concepts of collection.
How to Transpose a Table from rows to columns or columns into rows.
DDL and DML concepts.
What is the concepts of statistics in Oracle Plsql.
I need to transpose the following table columns to rows and rows to columns...Im not quite sure how to acheive this...I have the following table with fixed number of columns and dynamic number of rows based on date filter in query
MONTH_YEAR RMS RMS_OCC TTL_RMS
---------------------------------------
SEPTEMBER 200917790017790
OCTOBER 2009183831278818347
NOVEMBER 2009177901460517762
and I need to display this as
COL1 SEPTEMBER 2009 OCTOBER 2009 NOVEMBER 2009
--------------------------------------------------------------
RMS 17790 18383 17790
RMS_OCC 0 12788 14605
TTL_RMS 17790 18347 17762
We are using PL/SQL Release 11.2.0.2 .I would like to pull a query with each student each day an attendance record.Our database setup an AM and PM Period for all elementary students. I will pull if they absent both periods(AM, PM), then count that as one day absent.The hard part is I need to put the AM absent code and PM absent code - which is basically to put two records for each student's AM and PM absent code into one row.
Below is the query I use, but it violates the key of database, for PK is studentid+ attendance date. My query result turns out for some students they have different attendance code in AM vs PM, there are two records returned.
SELECT DISTINCT TO_CHAR(S.Student_Number) ,
TO_CHAR(Am.Schoolid) ,
Sps_School_Year('C') ,
TO_CHAR(Am.Att_Date,'MM/DD/YYYY') ,
(
[code]....
We have large (millions of records) Slow changind dimension (SCD) type 2 (see "Creating another dimension record " URL>.....We need to get several rows from this SCD for each key (AGREEMENT_ID) in a SQL query - to join to facts table and get several data points of each agreement (on several different points in time) stored in SCD.Here is SCD table structure:
CREATE TABLE AGREEMENT
(
"AGREEMENT_ID" NUMBER(*,0) NOT NULL ENABLE,
"ACTUAL_DATE" DATE NOT NULL ENABLE,
"ACTUAL_END_DATE" DATE NOT NULL ENABLE,
"OPEN_DATE" DATE NOT NULL ENABLE,
"LIMIT" NUMBER(23,8)
--++ a lot of other fields not needed for this task ....
CONSTRAINT "PK_MD_AGREEMENT" PRIMARY KEY ("AGREEMENT_ID", "ACTUAL_DATE") USING INDEX
)
The 1st simple approach would be to join facts to SCD as many (N) times as many different points of time you need - resulting in N Full Table Scans for SCD:
select ...
from fact,
AGREEMENT agr1,
AGREEMENT agr2,
AGREEMENT agr3
where
fact.AGREEMENT_ID = agr1.AGREEMENT_ID and agr1.open_date between actual_date and actual_end_date
and fact.AGREEMENT_ID = agr2.AGREEMENT_ID and :dateBOP between actual_date and actual_end_date
and fact.AGREEMENT_ID = agr3.AGREEMENT_ID and :dateEOP between actual_date and actual_end_date
2nd approach: 1 Full Table Scan for SCD + group by:
select ...
from fact,
(
Select AGREEMENT_ID,
max(case when open_date between actual_date and actual_end_date then LIMIT end) LIMIT_At_Open_DATE,
max(case when :dateBOP between actual_date and actual_end_date then LIMIT end) LIMIT_At_BeginOfPeriod_DATE,
max(case when :dateEOP between actual_date and actual_end_date then LIMIT end) LIMIT_At_EndOfPeriod_DATE
from agreement
-- ++optionally WHERE for those 3 dates, but possibly with no effect on non-partitioned table? Or WHERE to put less data on MAX() input (3 row for each agreement instead of 4...1000 without WHERE?)
group by AGREEMENT_ID
) agr
where fact.AGREEMENT_ID = agr.AGREEMENT_ID
Simple question, Why comparison operator ANY returns FALSE if no rows returned, and why operator ALL return TRUE if no rows returned? I dont know is this some kind of language or math assumption or is this just oracle rule?
View 18 Replies View Relatedi have 2 tables
A B
id a.id
name
type
There are at most 2 entries of a in b. Depending on the value of the type column in B, this determines whether the entry should be male or female. I want to have a select statement that will retrieve 2 rows into one row essentially like below, how is this done:
id male_name female_name
1 paul paula
the column names will appear as such, if its a 0 its a male name if its 1 its a female name, there will generally be 2 entries in B for 1 value of a.
I would want to know how can we predict how many rows are fetched per second for a particular query. What are the factors which are responsible for this.hoe does this whole process of fetching records from Source happens. Like when a query is fired how does it try to access the table and fetch records and how what are the factors whichc are responsible for this and how can we predict how many rows can be fetched per sec
View 8 Replies View RelatedThere are many reduplicate rows in a big table,what is the best way to get the reduplicate rows?
View 5 Replies View RelatedI have following table.
CREATE TABLE ORAFAQ
(
DPT NUMBER,
EMP NUMBER,
SAL NUMBER
)
[Code]....
DPTEMPSAL
1110
12100
131000
241500
25100
26500
27100
but i need data like
Dept
1
1 2 3 --3 columns show each employee
10 100 1000 --3 columns show salary below each employee
2
4 5 6 7
1500 100 500 100
How can we commit for every 500 rows in pl/sql block.
begin
for i in 1 to 10000
loop
Insert into t1 values(i);
commit;
end loop;
end;
Here I am commiting after all the rows are inserted ,but i want to commit for every 500 rows are inserted .
i want to all rows value into single rows.
for example;
Input data:
Sec_SSC_ID Column_nameAs of dateOld valu New Value
IBM Mat_dt 10/10/20101/1/2001 1/1/2002
IBM Bid Market 10/10/201075 85
IBM asset_nm 1/1/2011International IBM
MSFT asset_nm 1/2/2011Microsoft Intel
MSFT Bid Market price 1/1/201189 90
Output data
I have attached sample output file with it.
how to get this via sql?
Scenario like this , I have a dB which contain 100 tables, i want to find out each table contain how many rows excluding
system tables ..
how can i write query for this.
tried searching google and this site too, found postings on WM_CONCAT, STRAGG, concat_all, LISTAGG functions by Michel and have experimented with these, but either the syntax is giving me a hard time or i just have not got the concept down.
Trying to get 2 rows into one. Have provided the create statements and insert of data. Also below will show what is returned with a Select i have and what is ideally required.
CREATE TABLE Person_Lang
(
Person_ID NUMBER NOT NULL,
Language_ID NUMBER NOT NULL,
Contact_Name VARCHAR2(255 CHAR),
Main_Phone VARCHAR2(255 CHAR),
Secondary_Phone VARCHAR2(255 CHAR),
[Code]...
Data Returned from Select is:
1 46 905-231-3319 22 Street11 Apt402 Brantford
1 46 905-231-3319 23 Street12 Apt315 MainTown
Ideally what is required back is:
1 46 905-231-3319 22 Street11 Apt402 Brantford 23 Street12 Apt315 MainTown
i want to sum different rows and want get wum in nest column.
for example i have fee column and there is some different student fee in specific month for example(jan).i want to sum this fee against the month of Jan.
How to get the previous value of row with calling function to add value in SELECT statement for the row value.
Consider the example Table A1 having column a with values 1,NULL,NULL,NULL
SELECT CASE WHEN a IS NULL THEN (prev_row_value+function_return_Value) ELSE a END as A from A1
And my result-set should be like
a
----------------------
1
1+(Return Value Of Function)
Prev_Row_Value+(Return Value Of Function)
Prev_Row_Value+(Return Value Of Function)
Below is sample code but doesn't fulfill my criteria
[code]....
Output is
A A2
---------------------------
1 1
3
3
3