How Rowids are assigned to rows by Oracle?
Is it that Rowids are assigned in an incremental manner - as in the latest record would get Maximum Rowid.(Assuming that no record has ever been deleted from that table)
I have a table emp with columns [id,name,job_id,dept_id]. now I make a simple select query.
select id,name,job_id,dept_id
from emp
where id = &a
and name = &b
and job_id =&c
and dept_id =&d;
now in this case it will ask the values for all the columns and will according print result.
Now my questions is what will happen if I just pass the value for only id and name not for other two...?
I read that few privilegs can not be granted to roles like 'UNLIMITED TABLESPACE ' and they need to granted to user directly.
1. Is there any reason behind that few privileges cant be granted to roles or is it just oracle design.
2. what kind of privileges cant be assigned to roles.
i have exp dump of size 1gb but when i tried to imp ,it showing error of space , it asking for space of 4gb. But i have 1gb on c: drive and 32gb on d: ,can i add datafile on d: locaion and what is max size i can assign to that datafile .
View 4 Replies View RelatedI have few questions regarding PL/SQL tables
1) If I don't specify the "INDEX BY" clause, it is indexed by PLS_INTEGER by default, right?
2) Consider this package specification
CREATE OR REPLACE PACKAGE Testxyz AS
TYPE tab_Numbers IS TABLE OF PLS_INTEGER;
PROCEDURE TestNumber(ptab_Numbers IN tab_Numbers := NULL);
END Testxyz;So I created a table (I hope it is defaultly indexed by pls_integer data type) and I am passing it as a parameter to a procedure. Because I want this parameter to be optional I am assigning null into it.
Now I change the definition of the table to:
CREATE OR REPLACE PACKAGE Testxyz AS
TYPE tab_Numbers IS TABLE OF PLS_INTEGER INDEX BY PLS_INTEGER;
PROCEDURE TestNumber(ptab_Numbers IN tab_Numbers := NULL);
[code]....
3) Because I need this parameter to be optional, I use the first declaration:
CREATE OR REPLACE PACKAGE Testxyz AS
TYPE tab_Numbers IS TABLE OF PLS_INTEGER;
PROCEDURE TestNumber(ptab_Numbers IN tab_Numbers := NULL);
END Testxyz;
Now I create an anonymous block and want to assign something into the table
DECLARE
vtab_Numbers TESTXYZ.tab_Numbers;
BEGIN
vtab_Numbers(1) := 5;
END;
/When trying to run this, I got:
06531. 00000 - "Reference to uninitialized collection"
Is it possible to have input parameter of PL/SQL table type and have defaultly null assigned to it?
I am using Release 11.2.0.3.0 - 64bit Production version of oracle. Now we are having 3-tier architecture, (firewal/web/app/DB).Now i saw , some of the 'sql' queries, running till ~10hrs in my database and those are part of application(module JDBC THIN CLIENT). After had a talk java guys, they ask to kill the sessions specific to those queries. They are part of search TO, in which user put some large values for the date range and went to other TAB, but these queries gets running infinitely in the database, and user is not interested in the result set.
So how to avoid these things, as because in past, our database has suffered resource contention leading to application slowness. So i was planing to set different timeouts using 'database resource consumer group' for online user request and batch request depending on the app server(that is by machine names) request.
So i have done below set up in my local to test one scenario, in which i will try give a database call from difference machine, and it should get timeout after the specified duration. But its not working , as expected. The calls from the specified machine are not getting assigned to the created 'Consumer group'.
Begin
-- create the pending area
dbms_resource_manager.create_pending_area();
END;
/
BEGIN
-- Create the consumer group
[code]....
After this when i am verifying calls from machine, 'LR9XY7T8' they are belongs to the consumer group 'OTHER_GROUPS' and sql query not getting timed out within 60 seconds as mentioned.
Just explaining what I am trying to achieve:
1) i have a hr.departments table that was loaded in hr schema on 1st oct 2012 with 4 columns(department_id, department_name, manager_id, location_id)
2) now I have a new schema by my name 'rahul' and I have loaded departments table but now an additional column has come into picture,ie created_date, this table got loaded on 1st-Nov-2012
3) Now going forward my columns could be dropped from the departments table (it can be a case), for example might be my departments table in my schema 'rahul' one day could comprise of only 3 columns(department_id,department_name,manager_id)
4) Now in the next step, I have managed to extract common column names(in a single line where columns are delimited using a comma) from both the tables(hr.departments and rahul.departments) which are (department_id, department_name, manager_id, location_id) using all_tab_cols table and I have written a function for it which i will be pasting below.
5) now going forward, using the above column names line with column names delimited using comma, I have used a ref cursor and assigned a query to it using the line of columns that I have extracted from the above point
6) Now I want to create a record variable which refers to my ref cursor, something like we do when we create a record variable by reffering to an explicit cursor defination that we give in the declaration block.
PS:
1) I have been out of touch with plsql for a long time so I have lost a lot of mmeory regarding plsql.
2) basically I need to compare data in hr.departments table with rahul.departments table for only columns that are common to both the tables, rest new or discarded columns information will go in one of the log tables that I have created(this is done already)
Code :
===================================================================================================
create or replace procedure p_compare_data(fp_old_table_name in varchar2, fp_new_table_name in varchar2)
is
[Code].....
I have following tables:
EMPLOYEE (E-Number, Name, Department, age)
ASSIGNMENT (E-Number, P-Number )
PROJECT( P-Number, Project, Manager)
Create a view to show employee names, age and total number of projects they are assigned to
i have user with the name 'Rob' and this user has been assigned a role 'MY_SRC_ROLE' . I developed a table under rob schema and granted access to this table via role GRANT DELETE, INSERT, SELECT, UPDATE ON rob.emp TO MY_ SRC_ ROLE; I have 100 more users & they have been granted this role 'MY_SRC_ROLE'. These 100 users can now access emp table via Role 'MY_SRC_ROLE' without any issues. Now i took a datapump export & performed datapump import on target server which is also HP Unix with 11.20.3 .
On target server i have user 'JACK' and a role called 'MY_WORK_ROLE'. 5000 users have been granted 'MY_ WORK_ ROLE' on this server. I have used remap tablespace clause & remap schema clause in datapump import script. Once i performed an import , due to schema remap , i can see JACK now owns table 'emp', however grants are still not there, I tried searching on Google & oracle documentation, if somehow we can remap ROLE GRANTS also while doing datapump imp, but i couldn't find supporting syntax. can i assume datapump import is not capable to handle this particular scenario ? I was able to do it by manipulating sqlfile and replacing role name in that but i am looking for a sol. within datapump itself. how can grants assigned to ROLE 'X' be transferred to 'Role Y' via datapump import.
I created new 10g database & trying to import the export of 9i database (ABC). i have below questions:
-I just installed 10g have only system,sys ..etc only default user & databases.Do i need to create a same database i have in 9i (ABC) in 10g before importing data?
-i tried to import the export of 9i (ABC database , for only XYZ user) in 10g system user , i got the table imported with 0 rows
Log:
+++++++++++++++++++++++++
Connected to: Oracle Database 10g Enterprise Edition Release 10.2.0.1.0 - Production
With the Partitioning, OLAP and Data Mining options
Export file created by EXPORT:V09.02.00 via conventional path
Warning: the objects were exported by P2KTEST, not by you
import done in WE8MSWIN1252 character set and AL16UTF16 NCHAR character set
. importing P2KTEST's objects into P2KTEST
. . importing table "TESTRATN" 0 rows imported
Import terminated successfully without warnings.
++++++++++++++++++++++
Check the below simple sql stmts:
create table tab_tab(col1 number, col2 number);
insert into tab_tab values(1, 1);
insert into tab_tab values(2, 2);
insert into tab_tab values(3, null);
[code]......
My question is why the table content didn't look like:
col1 col2
----------
1 2
2 2
3 2
4 3
5 4
I thought that when oracle will update 1st, 2nd & 3rd rows then the sub query will get a count equal to 2, but the time when it goes to update the 4th & 5th row the sub query should get back a count equal to 3 & 4 resp. BUT that is not what exactly is happening!!
Is it possible to communicate with a serial device (via COM1) with oracle forms / webutil? I am able to communicate in java using RXTXcomm, but I am having problems making a bean that uses it (getting security errors and yes, I have signed the jars).
Basically, I have a scale hooked up to my COM1 port and want to be able to send commands (zero and tare) to it and read the weight from it through a form or java bean.
I have Table like
ID |A |B |C
---------------------------------------------------
4 |0000 |ALL |6
7 |0000 |ALL |3
8 |TEST |ALL |3
and my expected should be like this
ID |ColumnName |Value
-------------------------------
4 |A |0000
4 |B |ALL
4 |C |6
7 |A |0000
7 |B |ALL
7 |C |3
8 |A |TEST
8 |B |ALL
8 |C |3
in oracle 11g we have the option call pivot and unpivot but i dont know how achive this in 10g.
Oracle 11g on Linux. Previously submitted as Matching Rows.
I have the following table.
create table p
(pid varchar2(10),
first_name varchar2(10),
last_name varchar2(10),
type_code varchar2(5)
);
[Code]....
I used SELECT *
FROM (SELECT pid,
first_name,
last_name,
type_code,
COUNT (*) OVER (PARTITION BY first_name, last_name, type_code)
cnt
FROM p)
WHERE cnt > 1;
to get only the rows 1A and 3A
PID FIRST_NAME LAST_NAME TYPE_CODE
1A DENNIS ALRIDGE G5
3A DENNIS ALRIDGE G5
but, a new requirement is to get it in the format:
PID1 FIRST_NAME1 LAST_NAME1 TYPE_CODE1 PID2 FIRST_NAME2 LAST_NAME2 TYPE_CODE2
1A DENNIS ALRIDGE G5 3A DENNIS ALRIDGE G5
I tried mod(rownum,2) != 0 to separate the row numbers, but the output is offset with null like:
PID1 FIRST_NAME1 LAST_NAME1 TYPE_CODE1 PID2 FIRST_NAME2 LAST_NAME2 TYPE_CODE2
1A DENNIS ALRIDGE G5
3A DENNIS ALRIDGE G5
How do I collapse the rows?
EMP table
create table emp1 (empno number,deptname varchar2(30),deptno number,sal number);
insert into emp1 values (1,'Bank',10,1000);
insert into emp1 values (1,'Finance',20,400);
insert into emp1 values (2,'Finance',20,4000);
insert into emp1 values (3,'Account',30,3000);
commit;
select * from emp1;
actual output :
empno deptname deptno sal
1 Bank 10 1000
1 Finane 20 400
2 Finane 20 4000
3 Account 30 3000
Expected output :
empno deptname deptno sal
1 Bank 10 1000
2 Finane 20 4000
3 Account 30 3000
I am looking a output like above one. if any empno belongs to deptname Bank then give priority to that values else go to other dept like Finance but empno 1 should return only one row.i.e Bank dept only.
I have to return only one row based on dept values for one empno. how to do in sql or plsql?
I have been given a task to produce an ad-hoc report based on the following conditions (I will give you the structure of the table and details in the table below the requirements)
Requirements: Adhoc Report for Audit on CIT Income Allocation
1. Select from the RETURNS table:
•Id > 3600000 and
•Prog_program_cd = '01' and
[code]...
3.If there are multiple entries from the same account and tax year, only retain the latest record: From the records selected in step 2, if there are multiple records with the same Acct_Id and Period_end_date, only retain the record with the most recent Status_date (i.e. MAX value on the date).
4. Using the results from step 3, link to the applicable RETURN_LINE_ITEMS table where:
•RETURNS.Id = RETURN_LINE_ITEMS.Rtrn_Id
5. From the selected return on RETURN_LINE_ITEMS table, retrieve records where (value on Sch 000 Line 062 > 500,000) and (value on Sch 000 Line 066 < value on Sch 000 Line 062) :
•Sched_nbr = '000', and Litm_line_item_nbr = '062', and Active_ind = 'Y', get Revise_val_amt as 'ab_taxable_income'
•Sched_nbr = '000', and Litm_line_item_nbr = '066', and Active_ind = 'Y', get Revise_val_amt as 'amt_taxable_in_ab'
[code]...
So when you run the scripts above, the tables are created (I have tested it in TOAD) Now let's feed data into both the tables
RETURNS table:
insert into RETURNS
VALUES
(3602448 , '01' ,288151,3876821,9345370 , 403232531, 1, 'TAXPAYER' ,12/4/2008 ,'N', 'Y','N','ASSESSED', 2/18/2009,'SANDEEP',1/2/2008,1/2/2009,
'PRINTED','2/18/2009, 6043073664,'PAPER', 'NOTICE','N');
[code]...
I want to import only limited number of rows(say 100 rows from each table) from all tables but I want all proc/functions/packages etc to be imported.
View 2 Replies View RelatedI am new to Oracle DBA. m facing one problem. i imported and exported my data from one oracle DB to another by using exp/imp.....in both exp/imp log files, its shows the fallowing messages at the end.
"Import terminated successfully with warnings."
"Export terminated successfully with warnings."
but when i count there are some rows missing in some tables...
what could be the cause? is there any other way to cross check whether export/import was successful...
There is coulmn called DATA in a table with LONG RAW datatype. we are facing more than 60% chained rows in this table because of this LONG RAW column.
It is very difficult to clean up these chained rows periodically. Since an application using this table is a business critical interms of high availability.Hence, is there any other way in oracle to avoid chained rows permanently in future?
What would cause Oracle to insert duplicate rows into a table? Could a join of two tables in the initial query assigned to an application page cause ORacle to insert an extra row into a table when an update to data value occurs? I have no insert triggers and no foreign keys assigned to the table. I am not sure what would cause Oracle to assume that an insert of a row must occur. I want to prevent that insert.
View 9 Replies View RelatedThe 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.