SQL & PL/SQL :: Merging Rows

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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PL/SQL :: Merging And Updating Rows

Jun 29, 2013

I have a table structure as follows  

Student(Id,First_Name, Last_Name, email, Contact, Address1,Address2,City,Edit_Date,Create_Date,Archived)  

Now if there is more than one row with same email the one with the latest edit date should be updated with missing fields by using same field value other rows (if the field is present in more than one row, the one with the next latest edit date is to be considered) and the archived status of all rows with same email except this master row must be set to 1.

The Create_Date must be set to the minimum of all the create_date values of rows with same email value The create table would be as follows:

CREATE TABLE student(Id NUMBER PRIMARY KEY,first_name VARCHAR2(30) NOT NULL,last_name VARCHAR2(30) NOT NULL,email VARCHAR2(30) NOT NULL,contact NUMBER,adress1 VARCHAR(30),adress2 VARCHAR(30),city VARCHAR(30),edit_date DATE,create_date DATE,archived CHAR(1))

 Sample insert statements would be: insert into student values

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SQL & PL/SQL :: Merging Two Schema In One?

Feb 5, 2012

Requirement of merging two schema's into one. I have a client in two diffrent location . intially we setup the application with two diffrent instances of database for them for a smooth opration as they were not having any connectivity between the branches. Now they are moving their both branches together as one organisation. My application database table structure is same in both places.

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SQL & PL/SQL :: Merging Text For Same ID

Aug 18, 2010

I understand you can do this using cursors, but i need it in plain SQL; so that I can make this a correlated sub-query to another table using the id column.

Here's the original table:

id subid text
-- ----- ----
1 1 red
1 2 blue
1 3 green
2 1 yellow
2 2 black
2 3 orange

result should be:

id text
-- ----
1 red,blue,green
2 yellow,black,orange

SQL to Create and populate the table:

CREATE TABLE testStringJoin(ID number, subid number,text varchar2(50));
INSERT INTO testStringJoin values(1,1,'red');
INSERT INTO testStringJoin values(1,2,'blue');
INSERT INTO testStringJoin values(1,3,'green');
INSERT INTO testStringJoin values(2,1,'yellow');
INSERT INTO testStringJoin values(2,2,'black');
INSERT INTO testStringJoin values(2,3,'orange');

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SQL & PL/SQL :: Merging Into Multiple Tables

Feb 12, 2012

Can I use MERGE statement to insert the same thing into multiple tables?

Like below--

Merge into tbl1
using tbl2
when matched then update...
when not matched then insert all.

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SQL & PL/SQL :: Merging All Subpartitions In One Partition?

Nov 21, 2012

way to delete my subpartitions by keeping my datas, and keep it into my partitions. In fact, i want to remove my subpartitions, and keep my table partitionning. I already remove my subpartition template, but i don't want to do an insert as select on a new table wich will be partitionned (without subpartitions). ALTER TABLE myTable SET SUBPARTITION TEMPLATE ();

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PL/SQL :: Merging Two Queries Into A Single

Mar 19, 2013

Below are two queries , in merging two queries into a single so that out put coveres out put from below two queries

create table t_look as
select 1 a, 2 b, 3 c from dual union all
select 1 a, 20 b, 3 c from dual union all
select 1 a, 21 b, 3 c from dual union all

[Code]....

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SQL & PL/SQL :: Compare Current Rows With Previous Rows

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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PL/SQL :: Select 4 Rows And Then Next 4 Rows?

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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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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Delete 4 Millions Of Rows From A Table Having 25 Millions Of Rows?

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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PL/SQL :: How To Transpose A Table From Rows To Columns Or Columns Into Rows

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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SQL & PL/SQL :: Transpose Rows-to-columns And Columns-to-rows

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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SQL & PL/SQL :: Put Two Rows Into One Row?

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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SQL & PL/SQL :: Best Way To Get Several Rows From SCD For Each Key

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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PL/SQL :: ANY ALL When No Rows

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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Converting 2 Rows Into 1

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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Throughput Rows Per Second

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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SQL & PL/SQL :: How To Get Reduplicate Rows

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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SQL & PL/SQL :: Rows Into Column

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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SQL & PL/SQL :: How To Commit For Every 500 Rows

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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SQL & PL/SQL :: All Rows Value To Single Row

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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SQL & PL/SQL :: Rows From Each Table In DB

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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SQL & PL/SQL :: Multiple Rows Into One Row

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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Forms :: How To Sum Rows In 6i

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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SQL & PL/SQL :: Get Previous Value Of Rows?

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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SQL & PL/SQL :: Convert Many Rows To One

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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SQL & PL/SQL :: Cumulative Some Last 5 Rows?

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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SQL & PL/SQL :: Update All Rows At Once

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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SQL & PL/SQL :: Deducing Rows

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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