PL/SQL :: How To Fetch A Row With Maximum Rownum
Jan 15, 2013In my sql query, how can i fetch the row with max row count? the query has around 10 columns.
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Reports & Discoverer :: Using Parameter For Maximum Rows To Fetch To Be A Number
Dec 15, 2010In Report it is possible to set the maximum rows to fetch to be a number e.g. 1+.Is it possible to use a number that is selected from another query? When I try to do this i.e. I put in the field num_lines or :num_lines I just get invalid number
View 10 Replies View RelatedSemantic Technologies :: Maximum Node ID Larger Than Java Maximum Integer Value
Mar 7, 2013I'm currently doing migration from Oracle 10gR2 RDF to Oracle 11gR2 Semantic Technology.I followed the steps on the documentation and successfully created the network using the following:
-----
EXECUTE SEM_APIS.CREATE_SEM_NETWORK('rdf_tblspace');
CREATE TABLE rdf_network_trace (id NUMBER, triple SDO_RDF_TRIPLE_S);
--Created SEQUENCE andTRIGGER FOR rdf_network_trace id
[code]....
when I looked at my Node Ids, they were like +635762253807433724+, +6118969225776891730+. The problem is, I am not the one who is assigning Node Ids, They were automatically generated when inserting TRIPLE data to the rdf table.
Did I miss something when I created my network?
Forms :: ORA-24374 / Define Not Done Before Fetch Or Execute And Fetch
Mar 24, 2011FRM-40501: ORACLE error: unable to reserve record for update or delete.
ORA-24374: define not done before fetch or execute and fetch
My master-detail form has single canvas. For both blocks, master and detail, two tables joined together in each. One table to be updated, second table has some info for reference (query only).
I am getting these errors when in detail block the item from LOV is selected for existing record. This does not happen for new record inserted in detail block.
OO4O And Wizards :: How To Fetch Columns In Cursor Using FETCH
Nov 1, 2012create or replace PROCEDURE newprocedur(outname OUT VARCHAR2,outroll OUT NUMBER) AS
CURSOR c1 IS
select Name,Rollno,Section from emp;
BEGIN
Open c1;
fetch c1 into outname,outroll;
Here out of 3 columns in cursor is it possible to fetch only two columns using FETCH like i did above?
Using Both OrderBy And RowNum In Query
Nov 22, 2012I tried to make my Query as simple as possible but also it contains the problem:
SELECT A.Id,A.Attachment,A.CreateDateTime,A.No
,rownum as RowNumber
FROM (
SELECT A.Id,A.Attachment,A.CreateDateTime,A.No FROM GOutgoingLetter A ,
(
SELECT B.Id, B.createdatetime as of0 FROM GOutgoingLetter B
WHERE
Exists
[code]...
when I use Both Order By And RowNum in my Query, Two columns of final Select Are Null: NO & Attachment. whereas this Columns aren't empty.when I comment each one of "ORDER BY B.of0" or ",rownum as RowNumber " everything is correct!!
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 :: ORDER BY Clause And ROWNUM
Apr 4, 2010When i try to execute a query, which is organised as the below example, it retrieves data..
select * from (
select col1, col2, col3, col4....coln
from TABLE_ONE left outer join TABLE_TWO
-- some conditions and group by clause
order by 1 asc
)
where rownum <=1000;
Again if I use Column alias in the ORDER BY clause col1, the query won't retrieve data.
Also If I use ORDER BY 4 instead of ORDER BY 1, the query wont return data...
select * from (
select col1, col2, col3, col4....coln
from TABLE_ONE left outer join TABLE_TWO
-- some conditions and group by clause
order by 4 asc
)
where rownum <=1000;
The whole issue revolves around the inner ORDER BY Clause and external ROWNUM condition..If I eliminate any of the two, the query works fine...I am not sure if indexes have some role to play in it...
PL/SQL :: Cast Rownum To Number (10)
Jan 25, 2013I'm on Oracle Database 10g Enterprise Edition Release 10.2.0.4.0
I am working on a project where have lots of view on a different schema. For performance reasons, we create tables on those views and index them.
The application that uses these tables requires a numeric primary key of a specific length, e.g. number(10). Not all tables have a natural key that matches this requirement, so I added a rownum to the query. I had hoped that casting the rownum to a number(10) would result in the same datatype once the table is created.
e.g.
SQL> create or replace view rownum_to_number10_vw as
2 select cast(rownum as number(10)) objectid, dummy from dual;
View created
SQL> describe rownum_to_number10_vw;
Name Type Nullable Default Comments
-------- ---------------- -------- ------- --------
OBJECTID NUMBER(10) Y
DUMMY VARCHAR2(1 BYTE) Y
SQL> perfect! Now create a table based on this view:
SQL> create table rownum_to_number10_tb as 2 select * from rownum_to_number10_vw;
Table created
SQL> describe rownum_to_number10_tb;
Name Type Nullable Default Comments
-------- ---------------- -------- ------- --------
OBJECTID NUMBER Y
DUMMY VARCHAR2(1 BYTE) Y Oracle does not pick up on the number(10) cast!
How can I force Oracle to create a column with the same datetype as the underlying query?
ps:I know that the 10 in number(10) is more like a constraint than a datatype, but the application that uses this table will create an additional column if the datatype > 10. I want to prevent that from happening...
PL/SQL :: Rownum In UNION Operator
Feb 18, 2013I have a requirement in SQL that I have to number each row. Hence I thought of using ROWNUM. But the sql query I'm using uses UNION operator. Hence I used like this
select a,b,rownum as 'field1' from table1
union
select c,d,1 as 'field1' from table2
Will the above query solve my purpose?
SQL & PL/SQL :: Select Query With Rownum
Nov 27, 2012I am using this as a subquery within a large select statement.
(select NAME_LAST from person_name where person_id=enc.person_id and ROWNUM = 1 order by person_name_id desc) as PatFirstName
I am getting issues when i am doing rownum=1 with order by clause, what is teh right way.
when i use rownum < 2 without order y clause it is workign fine.
I would like to use order by clause.
SQL & PL/SQL :: Number Sequence At Row Level Like ROWNUM
Jun 1, 2010I have a result set with three columns as 'Product Category', 'Product' & 'QtySales' and 10 rows, sorted in the order Product Category, Product. This means, a product category will have one or more products under it.
Now i want to add a fourth column to my result set, which should display a incremental number sequence from starting from 1, 2, 3.. for each row. Also when the value of the Product Category (1st column) changes, this sequence should be restarted again from 1.
Col1 Col2 Col3 Col4
PC1 P1 10 1
PC1 P2 20 2
PC2 P3 30 1
PC2 P4 10 2
PC2 P5 15 3
PC3 P6 25 1
Using Of ROWNUM In Insert Statement Gives Error In Oracle 11g
May 24, 2011I have a query regarding the use of rownum inside the insert statement.
For example, I have a sample table as: sample1(aa date, bb number);
Insert
INTO sample1
VALUES (SYSDATE, ROWNUM);
this statement is working fine in Oracle 9i but gives error in Oracle 11.2.0.1. The error is ORA-976 ,
Why this error coming in Oracle 11g and how to resolve it?
Our Environment: UNIX AIX 5.3, Oracle 11.2.0.1 database
SQL & PL/SQL :: Create Rank On Column Without Using Rownum Function
Mar 17, 2013can we create rank on a particular column without using rownum and rank function.
View 9 Replies View RelatedUsing Rownum In PL/SQL Can Significantly Reduce Performance And Throughput Of Queries
Nov 27, 2010Using rownum in PL/SQL can significantly reduce performance and throughput of queries.
For example,
CODEselect *
from (select ...
from ...
join ... on ...
join ... on ...
left join ... on ...
where ...
group by ...)
where rownum < 500
takes much more time on a heavy loaded db than
CODEselect Y.*
from (
select X.*, rank() over(order by ...) rnk
from (select ...
from ...
join ... on ...
join ... on ...
left join ... on ...
where ...
group by ...) X) Y
where rnk < 500
I suspect it's because Oracle optimizer goals all_rows and first_rows.
Forms :: ROWNUM Returns NULL Rows When Value Greater Than 1
Dec 9, 2011 I am trying to do a simple query where I need to return the rows from a table and treat each rown according to some rules.The query works fine, and returns all the rows, usually I have 2 rows returned. WHen I add to the query where ROWNUM = 1, I get the first row returned, but when I use when ROWNUM =2 OR ROWNUM >1, I always get null rows retured, even if I have rows in the database. Here is my query:
SELECT on_time
INTO on_time2
FROM work.work_unit
WHERE work_code = 1
AND emp_no = :entry_blk.p_emp_no
AND work_date = :entry_blk.p_work_date
WHERE ROWNUM = 2;
--RETURN NULL
I changed it to the following format, but still I get the same results, only I get data when I say when rownum = 1, i get back the first record in the query
SELECT on_time
INTO on_time2
FROM (SELECT on_time
FROM work.work_unit
WHERE work_code = 1
AND emp_no = :entry_blk.p_emp_no
AND work_date = :entry_blk.p_work_date)
WHERE ROWNUM = 2;
I can't move forward in my form until I figure out why this is not returning records
Performance Tuning :: How To Overcome Rownum Clause From Select
Dec 27, 2010high number of executions of specific types of queries which is using only rownum clause. For exam.
select ani, rowid from tbl_smschat_upuor where rownum<=:"SYS_B_0";
DB is having high number of executions of these type of queries and these when I m checking the execution plan for the same type of queries it is accessing the full table scan.
======================execution plan for above query
1000 rows selected.
Execution Plan
----------------------------------------------------------
Plan hash value: 91289622
--------------------------------------------------------------------------------
[code]....
PL/SQL :: How Rownum Works For The Column Having Data Type As Varchar2
Jan 29, 2013bookshelf_test table structure
title varchar2(100) y
publisher varchar2(20) y
categoryname varchar2(20) y
rating varchar2(2) y
my query is,
select ROWNUM AS "Rank",title,publisher from (select rating,title,publisher from bookshelf_test order by rating desc ) where ROWNUM <=3
returns result ,
1 1 MY LEDGER KOCH PRESS
2 2 TO KILL A MOCKINGBIRD HARPERCOLLINS
3 3 THE MISMEASURE OF MAN W.W. NORTON
But inner query (select rating,title,publisher from bookshelf_test order by rating desc ) returns,
1 5 WONDERFUL LIFE W.W.NORTON
2 5 THE MISMEASURE OF MAN W.W. NORTON
3 5 TO KILL A MOCKINGBIRD HARPERCOLLINS
4 5 MY LEDGER KOCH PRESS
5 4 TRUMAN SIMON SCHUSTER
6 4 GOSPEL PICADOR
7 4 HARRY POTTER AND THE GOBLET OF FIRE SCHOLASTIC
8 4 INNUMERACY VINTAGE BOOKS
9 4 JOHN ADAMS SIMON SCHUSTER
10 4 JOURNALS OF LEWIS AND CLARK MARINER
11 4 LETTERS AND PAPERS FROM PRISON SCRIBNER
12 4 PREACHING TO HEAD AND HEART ABINGDON PRESS
13 4 THE SHIPPING NEWS SIMON SCHUSTER
14 4 THE GOOD BOOK BARD
15 4 THE DISCOVERERS RANDOM HOUSE
16 3 THE COST OF DISCIPLESHIP TOUCHSTONE
17 3 SHOELESS JOE MARINER
18 3 KIERKEGAARD ANTHOLOGY PRINCETON UNIV PR
19 3 EMMA WHO SAVED MY LIFE ST MARTIN'S PRESS
20 3 EITHER/OR PENGUIN
21 3 CHARLOTTE'S WEB HARPERTROPHY
22 3 BOX SOCIALS MARINER
23 3 ANNE OF GREEN GABLES GRAMMERCY
24 3 WEST WITH THE NIGHT NORTH POINT PRESS
25 3 UNDER THE EYE OF THE CLOCK ARCADE PUB
26 3 TRUMPET OF THE SWAN HARPERCOLLINS
27 2 COMPLETE POEMS OF JOHN KEATS VIKING
28 1 POLAR EXPRESS HOUGHTON MIFFLIN
29 1 GOOD DOG, CARL LITTLE SIMON
30 1 MIDNIGHT MAGIC SCHOLASTIC
31 1 RUNAWAY BUNNY HARPERFESTIVAL
why final queries top 3 rows r different than inner query ?
Forms :: How To Select 1st Record From The Duplicate Values In Table Without Using Rownum And Rowid
Apr 23, 2010how to select 1st record from duplicate vales in a table.
If we created one table with out primary key column In form in search block have uwi value and top_depth value when i enter uwi and top_depth value then when i click search button then it will display all values in master block.
but here duplicate values r there.
SQL> select rownum,uwi,top_depth,base_depth,test_start_date from well_pre_header;
ROWNUM UWI TOP_DEPTH BASE_DEPTH TEST_STAR
---------- ---------------- ---------- ---------- ---------
1 100 453.05 458.08 09-SEP-10
2 100 200 288 23-AUG-00
3 1001 200 289 25-AUG-01
4 1001 200 201 24-MAY-87
if uwi = 1001 and top_depth=200 and i will click search button it should be display 3 record & when i click next button then it will show 4th record.
SQL & PL/SQL :: Combining Rownum And Group By Gives - Not A Group By Expression
Jun 23, 2011I 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 ?
SQL & PL/SQL :: Find Maximum Value In A Row?
Mar 28, 2012I need to find the maxmimum value in a row, which consists 4 fields.
Columns: field_1, field_2, field_3, field_4
values : 2 , 4, 5, 1
the output should be field_3 =5
SQL & PL/SQL :: Nvarchar2 Maximum Size
May 11, 2011I'm having some issues with my NVarchar2 columns that I want to solve
My current NLS_CHARACTERSET is 'AL16UTF16', and therefore I can only create NVarchar2 columns with an maximum extension of 2000 bytes. But I do need a column with 4000 bytes length. How can I create an 4000 NVarchar2 column?
(I do not want to use a CLOB column...only a NVarchar2)
SQL & PL/SQL :: Maximum Length Of Table Name
Jun 10, 2013I want to create a table with a length greater than 30.I Thought there was a way to override the max length for for a table name in Oracle 11.2.0.2.I cant find a documentation that states how to get it done.
View 1 Replies View RelatedSQL & PL/SQL :: Display The Maximum Sum Of Salary?
Aug 14, 2010I want to display the maximum sum of salary among sum of salary of each department.
deptno sal
10 1000
10 500
10 100
20 2000
20 200
30 500
30 1500
30 2000
30 200
Sum of salary for each department.
10 1600
20 2200
30 4200
The output should be
30 4200
Because this the highest sum of salary compare to sum of salary of reaming departments.
Maximum Tables Supported
Jan 3, 2013We are having a production database configured in oracle 10.2.0.4 ( standard edition) and its contains near to 50000 tables . The database is accumulated by more than 100 tables everyday, and my question is is there is any table limits in oracle database ? especially in standard edition ??
View 8 Replies View RelatedMaximum Length Of Table Name?
Jan 31, 2013I think the maximum length of table and column name in oracle 11g is 30 characters.I want to increase the limit as i want to import a mysql database that is having bigger table names.Can i preset the table name and column name length??
View 2 Replies View RelatedHow To Select Maximum Percentage
Aug 10, 2012In my table three column are there, structure_code, attribute_code and percentage. one project have many attribute_codes, each attribute code have percentage value. The total of percentage value for a project is 100.
data like follows
structure_code Attribute_code percentage
160025 2531 30
160025 2536 20
160025 2537 50
160025 2538
162061 1468 0
Now i need to select which attribute_Code have maximum percentage for each project(structure_code).
Maximum TEMP Space Ever Used
Oct 2, 2012how to check the maximum space ever used for TEMP. I want to know it because I need to resize the TEMP and I want to know how small it can be. As I can see from a documentation hURL....max_size is max number of extens ever used in a segment
I could multiply max_size by extent_size and it would give me the max size of temp ever used
SQL> select segment_file, extent_size, max_size from v$sort_segment;
SEGMENT_FILE EXTENT_SIZE MAX_SIZE
0 128 23625
0 128 753
PL/SQL :: Get Asset_type For Which Count Is Maximum?
Jun 20, 2013select SEARCH_ID, SEARCH_KEYWORD, COUNT, ASSET_TYPE from RELEVANCY_TABLEwhere SEARCH_KEYWORD = 'search_keyword'and ASSET_TYPE is not null 558search_keyword3desk559search_keyword7table
I actually need to get the asset_type for which count is the maximum. In this case it should be 'table'.
SQL & PL/SQL :: Find Maximum Value Within A Group For Corresponding Types
Oct 25, 2010Test data for the problem is as follows.
SQL> select * from v$version;
BANNER
----------------------------------------------------------------
Oracle Database 10g Enterprise Edition Release 10.2.0.4.0 - 64bi
PL/SQL Release 10.2.0.4.0 - Production
CORE 10.2.0.4.0 Production
TNS for 64-bit Windows: Version 10.2.0.4.0 - Production
NLSRTL Version 10.2.0.4.0 - Production
SQL> with t
2 as
3 (
4 select 1 id, 12 compid, 1 rel_type, null enddt from dual union all
5 select 1, 13, 1, to_date('31.12.1993','dd.mm.yyyy') from dual union all
6 select 1, 14, 1, to_date('12.06.1996','dd.mm.yyyy') from dual union all
7 select 1, 15, 1, to_date('23.04.2003','dd.mm.yyyy') from dual union all
[code].......
I want to find the the latest compid for individual types 1 and 2 only within a list of ids. Latest compid is defined as the compid associated with the latest end date (null is treated as the latest end date).
So in the above example for rel_type = 1, compid : 12 is latest, for rel_type : 2, compid : 6 is latest.
Datatype for the tables are :
Id : Number
compid : Number
Rel_Type : Number
enddt : Date