SQL & PL/SQL :: Subdivide Rows Into Rows
Apr 10, 2013
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
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Apr 12, 2013
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
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May 27, 2013
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 ?
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Dec 14, 2007
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.
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Aug 22, 2012
what 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.
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Aug 15, 2012
I am searching for a decent method / example code to subdivide a large table (into a global temp table (GTT) for further processing) based on a list of numeric/alphanumeric which is the resultset from a view.
I am groping with the following strategy in PL/SQL:
1 -- set up cursor, execute the view (so I have the list of identifiers)
2 -- create a second cursor (or loop?) which: accepts each of the identifiers in turn executes a query (EXECUTE IMMEDIATE?) on the larger table INSERTs (or appends?) each resultset into the GTT
3 -- Then the GTT contains just the requires subset of the larger table for further processing and eventual import into iReport for reporting.
GTT is defined and ready to go, the larger table contains approx 40,000 rows and I need to extract a dozen subsets or so which add up to approx 1000 rows.
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Oct 6, 2010
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
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Sep 14, 2013
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]....
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Nov 20, 2012
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
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Jun 5, 2013
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?
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Aug 16, 2007
i 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.
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Nov 7, 2012
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
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Jul 12, 2011
There are many reduplicate rows in a big table,what is the best way to get the reduplicate rows?
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Mar 18, 2011
I 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
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Jul 10, 2010
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 .
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Jul 15, 2011
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?
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May 5, 2011
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.
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Apr 10, 2011
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
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Mar 10, 2012
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.
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Dec 29, 2010
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
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Sep 17, 2012
I use Oracle 11g and a Middleware which sends the SQL Statements to the database. That's why I can't send you loggings.
However, I' got this SQL:
With CTE
AS
(
select * from
data A2
WHERE
A2.ID ='536031'
AND
A2.AttrID = '6'
)
That code gives me the following result:
ID.........Version....AttrID.......group
536031......3.........6..............test5
536031......3.........6..............test6
What I try to do. I want to get all groups. The Groups should be in one column...the the result must be the following:
ID.........group
536031...test5, test6
In SQL server I always used
SELECT ID,
STUFF((SELECT ',' + [group] FROM CTE WHERE ID = c.ID ORDER BY [Version] FOR XML PATH('')),1,1,'')
FROM (SELECT DISTINCT ID FROM CTE)c
to achieve that. Is there a similar function in oracle like XML PATH? Or another way the get the result?
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Jun 25, 2013
I need to get the sum of next 5 rows that are order by one specific column .
Ex :
DROP TABLE TEST_5;
CREATE TABLE TEST_5 AS
SELECT TO_NUMBER(200 || ROWNUM) YEAR, ROWNUM TOT
FROM ALL_OBJECTS
WHERE ROWNUM < = 15 ;
SQL> select * from test_5 order by year;
YEAR TOT
---------- ----------
2001 1
2002 2
2003 3
2004 4
2005 5
2006 6
2007 7
2008 8
2009 9
20010 10
20011 11
20012 12
20013 13
20014 14
20015 15
15 rows selected
SQL>
Now Expected Results :
SQL> select * from test_5;
YEAR TOT Exp_res
---------- -----------------------
2001 1 1+2+3+4+5 = 15
2002 2 2+3+4+5+6 = 20
2003 3 3+4+5+6+7 = 25
2004 4
2005 5
2006 6
2007 7
2008 8
2009 9
20010 10 10+11+12+13+14
20011 11 11+12+13+14+15
20012 12 12+13+14+15
20013 13 13+14+15
20014 14 14+15
20015 15 15
15 rows selected
SQL>
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Aug 28, 2011
I want to update salary column of emp table in a way that every value of salary column be increased by 1000, is this possible I can do this one statement only??
(Just FYI-
SQL> desc emp;
Name Null? Type
----------------------------------------- -------- ----------------------------
EMPNO NOT NULL NUMBER(4)
ENAME VARCHAR2(10)
JOB VARCHAR2(9)
MGR NUMBER(4)
HIREDATE DATE
SAL NUMBER(7,2)
COMM NUMBER(7,2)
DEPTNO NUMBER(2)
)
[Code].....
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Oct 17, 2011
there are 2 different types of bar-code which get store in single table
table_structure
item_id
group
bar_code
values are like
item_id group bar_code
1 FG 09878
1 FG 81011
i want output like
item_id group bar_code1 bar_code2
1 FG 09878 81011
What should i need to do...?
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Apr 21, 2013
drop table test;
create table test
(
my_env varchar2(8) ,
id int
)
/
alter table test add constraint pk_test primary key (my_env, id);
insert into test values ('A', 1);
insert into test values ('A', 2);
[Code]...
These rows are valued :
drop table valued_test;
create table valued_test
(
my_env varchar2(8) ,
id int ,
val int
)
/
[Code].....
Now the rows of the table test can move from one situation to another. To model the movement from one situation to another, there is another table test_history
drop table test_history;
create table test_history
(
my_env varchar2(8) ,
id int ,
my_env_new varchar2(8) ,
id_new int
)
/
[Code]...
So the row (A,1) moved to (A1,1). What I want to do is to replicate the valued rows with(A,1) to (A1,1).
if we issue select * from <some_query> we will get this :
MY_ENV ID VAL
-------- ---------- ----------
A 1 100
A 3 200
B 1 100
A1 1 100
We can issue this query to get it :
select my_env, id, val
from valued_test
union
select my_env_new my_env, id_new, val
from valued_test, test_history
[Code]...
MY_ENV ID VAL
-------- ---------- ----------
A 1 100
A 3 200
A1 1 100
B 1 100
It works fine, but when we have lot of data in test and valued_test, these query becomes very slow. I think it is because of the union. So here are my questions :
1) could we remove the union
2) What columns in test, valued_test, test_history should we index to make the result be returned faster.
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Apr 5, 2012
Sample data
col1 col2 col3
1 A someval1
2 A someval2
3 A someval3
2 B someval4
3 B someval5
In col1 there will be always 1 or 2 or 3 value not more than 3 I am using oracle 10g.Want the following output in a single query with using user defined function or stored proc
OUTPUT
newcol1 newcol2 newcol3
someval1 someval2 someval3
null someval4 someval5
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Apr 11, 2013
I am trying to find records in table A that don't have any corresponding records in table B
select a.ID,a.templatenames from cbe a where not exists (select 1 from cbe_child b where a.ID=b.cbe_id)
Both tables have about 100 mil rows. And there is no Parent/Child relationship here, A.ID is a PK column.how can i write this select to perform better.
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Aug 9, 2010
I'm having table like this:
deptno
10
10
20
20
30
40
my query isI need the records which are not duplicated.
my output must have the records 30 and 40 only.
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Nov 23, 2012
the query ..
Below are the codes
create table testing1
(
id number,
data varchar2(20)
)
insert all into testing1 values (1,'100')
into testing1 values (2,'Ram')
[Code]....
I want the output as
100 Ram Pune
200 Shyam Mumbai
300 Kamal bangalore
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May 28, 2013
I am having the following table and values.
A | B
=====
1 | 1
2 | 2
3 | 3
4 | 4
5 | 5
I need an output in following
A | B | C
=========
1 | 1 |
2 | 2 | 3 --> 1+2
3 | 3 | 6 --> 3+3
4 | 4 | 10 --> 6+4
5 | 5 | 15 --> 10+5
I mean add the first row of column b with second row of column ==> this output need to show in column c
again this output need to add with third row of column b .......
any sql commands / keywords for this
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