Retrieve Nth Row From Table
Oct 12, 2010I have googled so much but unable to find the explanation how the following query work.
SELECT * FROM EMP a WHERE 2 = (SELECT COUNT(rowid) FROM EMP b WHERE b.rowid <= a.rowid);
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How To Retrieve Table Schema
May 22, 2007I'd like to know which SQL command (if there is any) I can use to display the current schema of a table. I'm particular interested in knowing which columns are indexes.My privileges to the DB are quite basic (I think that I'nm only allowed to run SELECT statements
This is the Oracle version that I'm using:
Oracle9i Enterprise Edition Release 9.2.0.6.0 - 64bit Production
PL/SQL Release 9.2.0.6.0 - Production
CORE 9.2.0.6.0 Production
TNS for HPUX: Version 9.2.0.6.0 - Production
NLSRTL Version 9.2.0.6.0 - Production
SQL & PL/SQL :: Retrieve Only Last Rank Row From Table?
Dec 2, 2010how do i retrieve only last rank row from table ?
View 7 Replies View RelatedRetrieve Data From A Table For Certain IDs
Apr 7, 2013I am writing a SQL inside an application to retrieve data from a table for certain IDs or for All employees based on the user's input. I create a variable :SELECTION for the where clause. When I run the SQL, I receive the error of missing right parenthesis. There is no error if I hard code the IDs.
If the input is 'All' -> the variable :SELECTION is blank so if the SQL :
select name, address, ID from employee :SELECTION
will be
select name, address, ID from employee
If the input of users ID as '1234','9999' - > the :SELECTION = ' where ID in (:VARIABLEID)'
:VARIABLEID = '1234','9999'
so the SQL:
select name, address, ID from employee :SELECTION
should be
select name, address, ID from employee where ID in ('1234','9999')
However, I got the missing right parenthesis error. I suspect it is something with the single quote, so I tried different ways, but it is still not working.
SQL & PL/SQL :: How To Retrieve Duplicate Rows From A Table
Jun 14, 2010How to retrieve duplicate rows from a table, suppose i don't know any column names. Without hard-coding column names I need to find.
View 5 Replies View RelatedSQL & PL/SQL :: Retrieve Hierarchical Data From Same Table
Nov 10, 2011Look into the below table:
TABLE :- EMPLOYEE
________________________
| ID | SUPERVISOR |
|_______________________|
| A101 | B102 |
|________|______________|
| | |
| B102 | C104 |
|________|______________|
| | |
| C104 | D108 |
|________|______________|
| | |
| D108 | E104 |
|________|______________|
Here B102 is supervisor of A101 and C104 is supervisor of B102 and so on. I want to get this data into new table in below format
TABLE :- Hierarchy
________________________________________________________________
| ID |SUPERVISOR_1 |SUPERVISOR_2 |SUPERVISOR_3 |SUPERVISOR_4|
|______________________|_____________|_____________|____________|
| A101 | B102 | C104 | D108 | E104 |
|________|_____________|_____________|_____________|____________|
| | | | | |
| B102 | C104 | D108 | E104 | NULL |
|________|_____________|_____________|_____________|____________|
| | | | | |
| C104 | D108 | E104 | NULL | NULL |
|________|_____________|_____________|_____________|____________|
| | | | | |
| D108 | E104 | NULL | NULL | NULL |
|________|_____________|_____________|_____________|____________|
| | |
| E104 | NULL | NULL NULL NULL
|________|_____________|_____________|_____________|____________|
I want to insert 1st two rows into Hierarchy table, then I would like to update Supervisor_2 to Supervisor_4. Here I don't want to use 'CONNECT BY PRIOR', as it take more time to execute (there are millions of records).SQL code for same.
SQL & PL/SQL :: Unable To Retrieve Rows From A Table
Mar 7, 2012I have created a table called ct_temp and it's structure is:
create table ct_temp(id char(2),srs number(3),amt number);
Result : Table Created
I now insert the following rows into the table:
id srs amt
1 62 30000
2 65 50000
3 65 70000
4 65 80000
5 62 16000
6 65 10000
7 65 100000
8 65 10
Commit
Then I issue the following query to retrieve data based on a specific criteria (Actually I have condensed the table and data because in Production, I have large number of rows; so for simplicity I am using 8 rows with one table)
criteria : I then want to retrieve the following:
for srs = 62, all values that is greater than 10,000
Answer: select decode(srs,62,ab.amt)temp1 ,decode(srs,65,ab.amt)temp2 from ct_temp ab
where decode(srs,62,ab.amt)>10000
Works like a charm and retrives the results.
Now comes the big issue
I want to retrieve the values for srs = 62 which is greater than 10,000 and at the same time I also want to retrieve the values for srs = 65 which is less than srs = 62.
Typically I wrote the query as:
select decode(srs,62,ab.amt)temp1 ,decode(srs,65,ab.amt)temp2 from ct_temp ab
where decode(srs,62,ab.amt)>10000
and decode(srs,65,ab.amt)<decode(srs,62,ab.amt)
I should atleast get one row for srs = 65 which is id # 8 but it displays blank rows or "no rows returned".
I am actually preparing a ad-hoc report for the business analyst and stuck at this step due to which I am unable to proceed any further. I have used DECODE function because of the requirement specified by Business Analyst.
I have tried the following in the office:
using EXISTS operator = no luck
using INLINE VIEW = no luck
Is there any way around?
SQL & PL/SQL :: How To Retrieve Data That Does Not Exists In A Table
Dec 13, 2011I have the following table with the some sample data:
|| Filename || receiving_site || originating_site ||
| fileA | siteA | HQ |
| fileA | siteA | siteA |
| fileB | siteA | HQ |
| fileA | siteB | HQ |
| fileA | siteB | siteB |
| fileB | siteB | HQ |
| fileB | siteB | siteB |
The table works in such way:
1. For each of the Filename, if originating_site is not the same as receiving_site, it means that the file has been sent to receiving_site but has not been acknowledged received yet.
2. For each of the Filename, if originating_site is the same as receiving_site, it means the file has been sent and received by the receiving_site.
My task is to list out all the Filename per receiving_site that has been sent, but not received yet by the receiving_site. For example from the sample data above, I am expecting to see that siteA, fileB has not been received yet.
How can I do that? I had tried MINUS and NOT EXISTS command, but I am just not able to get the result that I want.
SQL & PL/SQL :: Retrieve Subset Of Data From Table
Jan 20, 2012How to retrieve first hundred records from a table ?
FYI
---
The table size is 5 GB
The table count is 127922653
Table has 14 columns
Table is partitioned as well.
The table has 10 partitions.
SQL & PL/SQL :: How To Retrieve 100th Row To 120th Row From Table
Jul 18, 2012A table has 150 records. How do you retrieve 100th row to 120th row from that table ?
View 9 Replies View RelatedPL/SQL :: Use Loops To Retrieve Name Of Emp Table Of Scott Schema
Jan 12, 2013i am trying to use loops to retrieve the ename of emp table of scott schema , then under they are retrieved , all "sal" values appear under them , i do not want employee's salary under each employee , i need retrieve the 14 record of enames , then under them the 14 record of sal column appears , so i used this code :
declare
cursor emp_cur is
select ename from emp;
emp_rec emp_cur%rowtype ;
[code]....
Table Locking When Many Users Retrieve Data
Sep 2, 2009I have a "select ... into" in my PL/SQL and it doesn't retreive any data(I suppose just certain columns because if it doesn't retreive a row then the PL/SQL should throw an error) when there are many users accessing this table. It shouldn't be some table locking right? Because if it is, it should wait until the table is available then it will retreive data. Currently it just proceeds with the PL/SQL and selecting nothing in that query. what details should I look at to trace the cause of this problem.
View 4 Replies View RelatedPL/SQL :: How To Retrieve Data Delete From Main Table
Nov 10, 2012I am using oracle 11g database.
unforunatly i delete the data from main table. and i operated alter stmt.
now how do i retrieve the data..??
Windows :: How To Retrieve The Blob Column Data From Table
Mar 7, 2011I use the oracle 10g database.I am trying to insert and retrive the image.Inserting an image is done.but while retrieving an image iam getting an run time exception in java "java.sql.sqlexception:general error".i am not able to understand this.
The code to insert the image is
FileInputStream fi=new FileInputStream(f);
int size = fi.available();
System.out.println("j"+size);
byte b1[] = new byte[size];
i=fi.read(b1,0,size);
System.out.println("i"+i);
st.executeUpdate("insert into image1 values('b1',"+k+")");
when i am retrieving the image i tried like this
ResultSet rs=st.executeQuery("select imagecolumn from tablename");
here iam getting an exception as i named above.
SQL & PL/SQL :: Unable To Retrieve Multiple Values / Possibility From A Table?
Jun 1, 2010I have a table called table1 and its structure is as follows:
rtrn_id number,
entp_abn number,
litm_line_item_nbr number
country_code varchar 2(10)
I am trying to find retrieve value/row where for a particular rtrn_id , the possibility of having a country code of "CA"(for Canada) and "US" or "HK" (US or Hong Kong respectively) exists.
I framed my query the following way and it does not retrieve any result in Production and I believe there are a few values/rows in the "table1".
The query framed is:
Query 1:
SELECT rtrn_id,entp_abn,litm_line_item_nbr,country_code
FROM table1
where schd_version_yr = 2010 and prog_program_cd = '01'
and sched_nbr = '000' and (litm_line_item_nbr = '023' and country_code 'CA')
and (litm_line_item_nbr = '016' and country_code = 'CA')
The above query does not retrieve any rows
Where as if I run a query individually it retrieves tons of rows
(Individual query :
SELECT rtrn_id,entp_abn,litm_line_item_nbr,country_code
FROM table1
where schd_version_yr = 2010
and prog_program_cd = '01'
and sched_nbr = '000'
and (litm_line_item_nbr = '016' and country_code = 'CA')
-----Retrieves tons of rows as the country code = Canada for line item # 16
SELECT rtrn_id,entp_abn,litm_line_item_nbr,country_code
FROM table1
where schd_version_yr = 2010
and prog_program_cd = '01'
and sched_nbr = '000'
and (litm_line_item_nbr = '016' and country_code 'CA')
-----Retrieves tons of rows as the country code IS NOT Canada for line item # 23.
There is a possibility that there are rows that have country Code as Canada and not Canada for a particular ID whose line item numbers could be 16, 23.. is there any better way to frame my Query1 to retrieve values/rows?
Forms :: Select Table Name And Retrieve Its Related Data
May 29, 2012I wanna have a form which has a list box which is including of all table names, by selecting the required table by user all column name and its related data should be retrieve.I have a cursor which give me all field names related to the table by I do not know how can I retrieve table data:
1. How to add item through block base on number of column which selected table has.
2. How to set value of table column in these mentioned column which added in the block.
3. And at the end retrieve the table data.
SQL & PL/SQL :: Retrieve All Data From Table And Print Out Each Customer Info One By One
Nov 15, 2010How similar is PL/SQL to SQL? I'm trying to retrieve all data from a customer table and print out each customer information one by one:
DECLARE
CURSOR all_customer IS
SELECT *
FROM customer;
BEGIN
DBMS_OUTPUT.PUT_LINE(all_customer);
END;
but I really don't know the correct syntax. The Powerpoint slides the professor gave is not useful at all.
Forms :: Hierarchical Tree - Retrieve Values And Insert Into Table
Apr 19, 2010My Form consists two Hierarchical trees. When I select a node from first tree and I press Move Right (>>) Button the selected node should move to the second tree. Similarly when I select a node from second tree and press move Left button(<<) it should move to the first tree.
I also want to know want to insert values Into New Table using node values from The Displayed Hierarchical Tree. How to retrieve values using populate_Group_from_tree and insert into table.
Forms :: How To Retrieve Records From Table Without Using Data Block Wizard
Jun 17, 2012i want to retrieve records of empno from SCOTT.EMP talbe in form but without data block wizard using ..how .. and what logic will be in coding
DECLARE
TYPE EROC IS TABLE OF VARCHAR2(200) INDEX BY BINARY_INTEGER;
E1 EROC;
NO_EMPNOVARCHAR2(2000);
[code]....
just caling here EMPNO and :v_empno is fields on form...
Performance Tuning :: Retrieve Data From View Or Mention Table Names Directly?
Aug 11, 2011base on performance it is better to retrieve data from view or mention the table names directly?
I have a select statement in from clause one of my table is view (which is having data collected from four tables) my question is whether performance of querry will be improved if i use directly all tables( four tables of a view) instead of a view
SQL & PL/SQL :: Retrieve Column Value
Jan 20, 2012example
My table mst_product(product_code,product_name) and its value is (190,toy),(198,tim),(280,bush),(jupiter,top),(AUTO2,auto),(281,tig),(282,com)...and so on
I want to make a query to select those items which is equal to and greater than 280. So how we make a query.How select those items which does not have any alphabetic letters.
PL/SQL :: How To Retrieve Xml From Blob Col
Dec 10, 2012I have kept xml in blob and i am retriving it as following.
select utl_raw.cast_to_varchar2(dbms_lob.substr(colblobforxml,2000,1)) from t1
the problem is, it only gets 2000 chars and i have more than 2000 chars.
Retrieve Records - Using Code?
May 28, 2008I need to retrieve the records where the involvement is either a person or an organization. Using the code below i receive an error stating that the outer join operator is not allowed in the operand OR:
(( INVOL1.PERSON_IDENTIFIER(+)=ALL_PERSONS.IDENTIFIER )
OR ( INVOL1.OUNIT_IDENTIFIER_INV=INVOL1_ORG.IDENTIFIER(+) ))
If I change it to an and query it will only retrieve the records where there is a person and an organisation as the involvement but I need this option as well as one or the other.
SQL & PL/SQL :: To Retrieve Rows Which Have Same Buyer ID
Dec 1, 2010My table "xxbuyer_det" contains the below data.
buyer_id Invoice_numPriceItem
------------------------------------
148137110A
149314211B
149314315C
149314415F
148120520D
148120625E
My requirement is to select the rows which have same buyer_id more than or equals to two times (>=2). I am trying with the below query. But this query is failing(not retrieving any data) as i have used group by class and count value is 1 for every record.
SELECT BUYER_ID, INVOICE_NUM, PRICE
FROM
xxbuyer_det
GROUP BY
BUYER_ID,
INVOICE_NUM,
PRICE
HAVING COUNT(*) >=2
SQL & PL/SQL :: Using Rownum To Retrieve Few Records?
Mar 29, 2010select rownum, CATR_ID, CAT_ID, CATR_REG_COPY, CATR_REG_LABEL, CATR_ACQUIRED_DATE, CATR_REG_DATE, CATR_MEDIA_COMMENTS, CATR_WITH_DIGITAL,
CATR_ORIGINAL, CATR_LINK, CATR_CREATED_BY, CATR_CREATED_DATE, CATR_MODIFIED_BY, CATR_MODIFIED_DATE, CATR_CHECKOUT, Available,
CATR_RETURN_DATE, LOCN_ID, LOCN_SITE, LOCN_LOCATION, MTYPE_GROUP, MTYPE_NAME, ACCESS_LEVEL, DESCRIPTION, CAT_TITLE, CAT_DESCRIPTION,
CATEGORY_ID, CAT_AUTHOR, CAT_PUBLISHED_DATE, CAT_PUBLISHER, CAT_EVAL_RELEVANT_KEYWORDS, CAT_REG_NUMBER, CAT_REG_SUBNUMBER, U_NAME
[Code]..
There are over 1500 records, but this query does not return any row. If i change rownum >= 100 to rownum <= 100 it returns first hundred records though... What is wrong here?
SQL & PL/SQL :: Retrieve One Value For Phone Number?
Feb 24, 2010I need to retrieve only one telephone number against the parent id. The preference is to get mobile if available if not home number else work phone. How can I achieve this
I have given the sql code and sample output below
select
pp.phone_id
,pp.parent_id
,pp.phone_type
,pp.phone_number
from per_phones pp
[code]....
Actual results should be
PHONE_ID PARENT_IDPHONE_TYPEPHONE_NUMBER
12960 2500H1 9385789
311108 146564M 04879652
SQL & PL/SQL :: Query To Retrieve Value In Specified Schema
Jan 6, 2011I need a query to retrieve a particular string from all the columns and all tables in a specified schema.
For example:i had a value "Current" in a particular column in a particular table. i need to find this value if i don't know the table name and column name.
SQL & PL/SQL :: How To Retrieve Distinct Cat_id
Nov 1, 2011Category Table
Name Null? Type
------------------------- -------- --------------
CAT_ID NOT NULL NUMBER
CAT_NAME VARCHAR2(20)
Qusestion Table
Name Null? Type
--------------------------- -------- -------
QUS_PK NOT NULL NUMBER
CREATED_DATE DATE
VIEW_COUNT NUMBER
CAT_ID NUMBER
select category.cat_id , qus_pk , cat_name , created_date , view_count
from category , qusestion
where category.cat_id = qusestion.cat_id
order by view_count desc
How can I retrieve distinct cat_id here?
SQL & PL/SQL :: Retrieve Records Of 2 Way Transaction
Apr 13, 2011I want Query on this table. EXAMPLE TABLE:
SENDER RECEIVER AMOUNT
A B 1000
B C 2000
A D 3000
C A 3000
B A 4000
A B 5000
A B 1000
B C 2000
C A 3000
B A 4000
A B 5000
A C 10000
Dynamically I am giving user name A. I want to retrieve the data how much money user B taken from user A and how much money user B given to A lly for C and D.
CONDITION: I want to retrieve the records of 2 way transaction that means user A sent money to user B and user B must sent money to user A. I don't want one way transaction records i.e user A sent money to D but user A didn't get money from user D like this records.
OUTPUT LIKE:
USER MONEY_TAKEN_FROM_A MONEY_GIVEN_TO_A
B 12000 8000
C 10000 6000
SQL & PL/SQL :: Cursor Defined To Retrieve Row By Row
May 26, 2011In SQL server the cursor is defined to retrieve row by row and process it. We can fetch records as FIRST, LAST, NEXT, PREVIOUS and SCROLL like that. Can we do the above in oracle. Else what is the use of cursor in Oracle. I know that it is a private area in which the records are processed.
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