I have create a select statment using more then 10 table which is returning only two columns as per my requirement.
From this select statement I have create a View?
In order to proceed further first I would like to as If I can join a table and a view?
I have this table
create table ACTIONARI_ARH
(
actionar_id NUMBER(10) not null,
id VARCHAR2(20) not null,
id_2 VARCHAR2(20),
tip VARCHAR2(1),
nume VARCHAR2(100),
prenume VARCHAR2(100),
adresa VARCHAR2(200),
[code]....
and this view
CREATE OR REPLACE VIEW ACTIONARI AS
SELECT "ACTIONAR_ID","ID","ID_2","TIP","NUME","PRENUME","ADRESA","LOCALITATE","JUDET","TARA","CERT_DECES","DATA_REGISTRU" Data_operare,"USER_MODIF","DATA_MODIF","REZIDENT"
FROM (
select
[code]....
The table has about 30 milion records and holds persons names, addresses, personal id (id), and internal id(actionar_id) and date when a new adress has been added.
The view is about getting only the most recent info for one person (actionar_id).
if i run a
a) select * from actionari a where a.actionar_id = 'nnnnnnn', result is returned immediatly, oracle uses index and does not do a full table scan.
b) select * from actionari a where a.actionar_id in ('nnnnnnn','mmmmmm','ooooooo'), result is returned immediatly, oracle uses index and does not do a full table scan.
my problem when i use this view in a join.let's assume i have another table with no more than 500 records, something like
create table SMALL_TABLE
(
actionar_id NUMBER(10) not null,
......
);
and if i run
select *
from SMALL_TABLE s
join actionari a
on a.actionar_id = s.actionar_id;
it takes like forever to process, forever means 1~3 minutes.by looking at the execution plan, oracle does a full table scan, creates the view for all unique 7milion persons, and only then joins the result with the actionar_is's in the small table and returns the desired 500 record result.i am using oracle 10g.
9i worked fine 11g release2 giving ora-01779
alternative sql for the following :
UPDATE /*+ BYPASS_UJVC */
(
SELECT
c.c1,
c.c2,
c.c3,
[code].....
I have a question related with VIEWS
I would like INSERT data in a VIEW with a INNER JOIN, like this example:
CODECREATE VIEW MYVIEW (order_id,list_price,customer_id) AS
SELECT order_id, list_price, customer_id FROM ORDERS o
INNER JOIN PRODUCT_INFO p ON (o.order_id= p.pdt_id);
INSERT INTO MYVIEW VALUES (4,500,10); /* will cause an error*/
But when I try to execute the insert statement, the "SQL Developer" returns a error:
ORA-01779 - "cannot modify a column which maps to a non key-preserved".
Why can't I do it? Are there some way to do it?
The view below creates, however displays duplicate rows. Why is this may I ask?
CREATE OR REPLACE VIEW customer_order_vw
AS
SELECT
a.customer_id,
[Code]....
I have a materialized view "pro_mview",I am trying to refresh the MVIEW by using the following statement.
EXEC DBMS_MVIEW.REFRESH('pro_mview','C');
But I am getting the below error.
*
Error at line 1:
ORA-12008: error in materialized view refresh path
ORA-00942: table or view does not exist
ORA-06512: at "SYS.DBMS_SNAPSHOT", line 2256
ORA-06512: at "SYS.DBMS_SNAPSHOT", line 2462
ORA-06512: at "SYS.DBMS_SNAPSHOT", line 2431
ORA-06512: at line 1
I am able to fetch the data from that materialized view(pro_mview).
I stumbled about some weird 11gR2 behavior (running on AIX).When I performed a join between a table with user based content (parts belonging to an sourcing scope) and a base table (parts available) whereas the parts have to fulfill a special regular expression, it showed that the same query is faster when using outer join than inner join (about 0.7sec vs. 20sec; which makes me believe that regexp_like works wrong when involved in an inner join).
i tried the same statement with a standard like (but not fulfilling the same condition).This time performance was as expected (inner join outperforming outer join).
Oracle version information
Oracle Database 11g Enterprise Edition Release 11.2.0.2.0 - 64bit Production
PL/SQL Release 11.2.0.2.0 - Production
CORE 11.2.0.2.0 Production
TNS for IBM/AIX RISC System/6000: Version 11.2.0.2.0 - Production
NLSRTL Version 11.2.0.2.0 - Production
[code]...
I can see it, the execution plan for the "inner join" doesn't show so much more costs than the one for the outer (but why at all is does an inner join cost more?) ...The execution plan for both "not like" is the same and (surprisingly ;-) ) similar to "outer-regexp".
I hope sample data are not needed as there would be needed a lot...this is the second time I came across the "plan worse but execution time better" phenomenon.
I am trying to join column names from a table with data from a different table. I think i should be able to pass the parameter to a 'select list' in a query. Look at my sample data below. And the data in sales table can grow till 15 rows and similarly corresponding columns in saleshist.
CREATE TABLE SALESHIST
(
PRODUCT VARCHAR2(30 BYTE),
Q1 VARCHAR2(30),
Q2 VARCHAR2(30),
Q3 VARCHAR2(30),
Q4 VARCHAR2(30)
)
[code]......
I am having trouble retrieving the Max, latest date, from a table with a join to one another table and other fields from both.I was able to get the MAX service_date grouped by id. But once I tried to add more fields to the query and another table it won't work.
Here is what I have:
selectMAX(cs.service_date), cs.notes, cs.applicant_id,wr.program_code,wr.last_name,wr.first_name,wr.region_code,wr.status_cd
from cs join wr on cs.applicant_id=wr.applicant_id
where wr.status_cd='AC'
group by cs.applicant_id
I have two table in different instance .
IMEI in instance A
RCA_SMART_CARD in instance B
Below is the desc table :
SQL> desc RCA_SMART_CARD;
Name Null? Type
----------------------------------------- -------- ----------------------------
N_CARD_ID NOT NULL NUMBER(10)
C_CARD_SERIAL_NUMBER NOT NULL VARCHAR2(20)
C_SIM_MSISDN VARCHAR2(20)
C_SIM_IMSI VARCHAR2(20)
C_LINKED_CARD VARCHAR2(20)
N_PRO_IDENTIFIER NOT NULL NUMBER(4)
C_CARD_TYPE VARCHAR2(1)
N_SIM_STATE NUMBER(1)
N_EEPROM_SPACE_LEFT NUMBER(9)
N_VOLATILE_SPACE_LEFT NUMBER(9)
N_NONVOLATILE_SPACE_LEFT NUMBER(9)
N_CARD_OPTI NOT NULL NUMBER(15)
N_PRODUCT_ID NUMBER(10)
D_CREATION_DATE DATE
D_MODIFICATION_DATE DATE
D_STATUS_MODIFICATION_DATE DATE
SQL> desc IMEI;
Name Null? Type
----------------------------------------- -------- ----------------------------
MSISDN NOT NULL VARCHAR2(20)
IMEI NOT NULL VARCHAR2(16)
DATE_MOD NUMBER(13)
IMSI VARCHAR2(18)
ICCID VARCHAR2(20)
T_PROF RAW(20)
EXTRA_DATA VARCHAR2(100)
If I want to join two table together . I want to search the number of record in IMEI that have N_SIM_STATE =1 in RCA_SMART_CARD . The MSISDN in IMEI is equal to C_SIM_MSISDN in RCA_SMART_CARD .
oracle 10g to select column from about 8 table . I start with this statement
select A.a, B.b, C.c, D.d, E.e, F.f, G.g, H.h
from A
full outer join B on(A.a=B.b)
full outer join C on(B.b=C.c)
full outer join D on(C.c=D.d_
.
.
..
.
.
.
two history tables with each record having effective date and end date needs to join (date is in dd/mm/yyyy)
table one
effdate enddate ID Name
01/08/2010 04/08/2010 01 devendra
04/08/2010 06/08/2010 01 deven
table two
effdate enddate ID Family
01/08/2010 02/08/2010 01 X
02/08/2010 03/08/2010 01 Y
03/08/2010 05/08/2010 01 Z
05/08/2010 06/08/2010 01 W
Expected output
effdate enddate ID Name Family
01/08/2010 02/08/2010 01 devendra X
02/08/2010 03/08/2010 01 devendra Y
03/08/2010 04/08/2010 01 devendra Z
04/08/2010 05/08/2010 01 deven Z
05/08/2010 06/08/2010 01 deven W
what can be optimum sql for this?
I have the following 2 tables.
A) Docversion
CREATE TABLE DOCVERSION
("OBJECT_ID" VARCHAR2(250 BYTE),
"OBJECT_CLASS_ID" VARCHAR2(250 BYTE),
);
[Code]..
Join column : object_id and parent_id.
The object id in docversion will have multiple values for element value in listofstring table.
ordinal value represents teh sequence of element value
Eg:
data for docversion:
1 23
2 34
data for LISTOFSTRING:
1 11 0 100
1 11 1 109
1 11 2 119
2 22 0 A
2 22 1 B
ouptut:
I want the output as follows
docversion.objectid,listofstring.elementvalue
1 100,109,119
2 A,B
I have a table that contains 15 columns. Say each columns contains name of fruits. And another master table which contains names of valid fruits. Now I have to create another table from these tables such that for each column if the fruit name is present in the master table then fruit-name is populated else "invalid" is populated. I know using left join for 15 times to the same master table can work. But I found this very clumsy. Is there any other way of doing it.This is just a sample case. In real scenario I have a table of 800 million records and master table of 30000 records.
View 7 Replies View RelatedI have two table in different instance .
IMEI in instance A
RCA_SMART_CARD in instance B
Below is the desc table :
SQL> desc RCA_SMART_CARD;
Name Null? Type
----------------------------------------- -------- ----------------------------
N_CARD_ID NOT NULL NUMBER(10)
C_CARD_SERIAL_NUMBER NOT NULL VARCHAR2(20)
C_SIM_MSISDN VARCHAR2(20)
C_SIM_IMSI VARCHAR2(20)
C_LINKED_CARD VARCHAR2(20)
N_PRO_IDENTIFIER NOT NULL NUMBER(4)
C_CARD_TYPE VARCHAR2(1)
N_SIM_STATE NUMBER(1)
N_EEPROM_SPACE_LEFT NUMBER(9)
N_VOLATILE_SPACE_LEFT NUMBER(9)
N_NONVOLATILE_SPACE_LEFT NUMBER(9)
N_CARD_OPTI NOT NULL NUMBER(15)
N_PRODUCT_ID NUMBER(10)
D_CREATION_DATE DATE
D_MODIFICATION_DATE DATE
D_STATUS_MODIFICATION_DATE DATE
SQL> desc IMEI;
Name Null? Type
----------------------------------------- -------- ----------------------------
MSISDN NOT NULL VARCHAR2(20)
IMEI NOT NULL VARCHAR2(16)
DATE_MOD NUMBER(13)
IMSI VARCHAR2(18)
ICCID VARCHAR2(20)
T_PROF RAW(20)
EXTRA_DATA VARCHAR2(100)
If I want to join two table together. I want to search the number of record in IMEI that have N_SIM_STATE =1 in RCA_SMART_CARD . The MSISDN in IMEI is equal to C_SIM_MSISDN in RCA_SMART_CARD .
How can I do and what is the sql statment ??
Explain the mechanism of this sql statement. I tried to understand how it goes but I really got confused.
select e.last_name, m.last_name mgr
from employees e join employees m
on (e.manager_id = m.employee_id)
The first line seems clear to me that will bring the names of employees and second column will bring names of managers. Second line is clear as well, but the third line couldn't understand. in my mind it should be like that
m.manager_id = e.employee_id
I tired this but doesn't work so what happened exactly in that full statement, I mean how it will match. I just want to understand the mechanism.
I am little confused applying DISTINCT on a Multiple table Inner join.
Table: Role
=========================
role_id email
1 xxx@abc.com
2 yyy@abc.com
3 zzz@abc.com
Table: notification_role
===========================
id role_id process_id
1 1 p1
2 1 p2
3 1 p3
4 1 p1
5 2 p2
6 2 p2
7 2 p3
8 2 p3
9 3 p4
Table: process
================
process_id proces_name
p1 process1
p2 process2
p3 process3
p4 process4
Expected Result
====================
role.role_id role_email process_process_id process_name
1 xxx@abc.com p1 process1
1 xxx@abc.com p2 process2
1 xxx@abc.com p3 process3
2 yyy@abc.com p2 process2
2 yyy@abc.com p3 process3
3 zzz@abc.com p4 process4
QUERY::
select distinct c.process_id a.role_id,a.email_address,c.process_name
from role a, notification_role b, process c
where a.role_id=b.role_id and b.process_id = c.process_id
I have 2 tables as shown below. I have to join those tables and get data as in table 3. Condition is I have to get sum of scores for each student where category is 1 and active is Y.
Table1:
col1col2category
A 10 1
A 10 2
B 10 1
B 20 2
C 10 1
D 20 1
J 30 1
Table2:
colAcolBActive
A10Y
A20N
B30Y
B40N
Z35Y
Table3:
STUDENTSCORE
A20
B40
C10
D20
J30
Z35
query to show student name and sum of his score where category is 1 and active is Y. I am using Oracle 8i.
I have 2 tables Table a(girlscoutid, item, quarter)Table b(girlscoutid, fname, lname) I want to get the names of ppl who did not sell any item/s for the
4th quarter
girlscoutid item quarter7771
drinks 4QS9000
tickets 4QW7771
cookies 2QS5085books 3QF3010tickets3QW5085
cookies1QF lscoutid
fnamelname7771 jenn richochet9000 laura wilkins5085sally mae3010dora mckenzie
This is what I have, however, I get duplicates and also 7771 shows up on the list even though she sold an item on the 4Q.
SELECT fname, lname, a.girlscoutid
FROM a,b
WHERE a.girlscoutid = b.girlscoutidAND term NOT LIKE '4Q_';
I've created a query so I can easily compare two sets of data for two different instruments:
select a.CalId, a.AtName, a.NRef, a.VaLoat, a.ValTime, a.ValRing,
cvs.NRef, cvs.CalId, cvs.AtName, cvs.VaLoat, cvs.Valtime, cvs.ValRing
from CalcAttribute a, CalcAttribute cvs
where a.NRef like '438815' and cvs.NRef like '438813'
and a.CalId *= cvs.CalId
and a.AtName *= cvs.AtName
union
[Code]...
This works great - however I want to add an addtional condition, basically so it only returns where the two are not equal.
I thought I should just be able to add an extra:
and a.ValLoat *<> cvs.ValLoat
and a.ValLoat <>* cvs.ValLoat
But it doesnt seem to like this (Incorrect syntax near '<'.)
I need to delete all the registers where the table 1 does join with table 2 in 3 fields... for example:
delete taba1 t1
where t1.campo1 in ( select distinct(tr.campo1)
from tabla1 tr,
tabla2 t2
where t2.error = 0
tr.campo1 = t2.campo1
and tr.campo2 = t2.campo2
[Code]...
There is a requirement to make a table data in a database (eg: HR database) available in another database (eg: EMP database), instead of accessing it using database link. In EMP database(where data needs to be cloned), data will only be queried and no write operation will be done. Data in remote database (eg: HR DATABASE) will be occassionally fully truncated and reinserted. The plan is to do a similar truncate and reinsert of data (from HR database) into EMP database monthly once using dbms scheduler job. So basically data in just one table needs to be cloned in another database.
Question: For this situation, is a regular table or Materialized view the right choice to clone the table in EMP database and why? The table in HR database (remote database) is not very big.
join two oracle tables for fast fetch of data from table.
View 1 Replies View RelatedI need to work on this requirement.
There are FOUR tables ( T1 , T11 & T2, T22) ALL store order information.
One of four conditions are possible for each Supply Reorder Number:
•Both table queries return no records
oPopulate all the output fields with nulls
•T1 returns a record, but T2 returns no records
oPopulate output fields with values from the join of T1 and T11.
•T1 returns no records, but T2 returns one record
oPopulate output fields with values from the join of T2 and T22.
•T1 returns a record, and T2 returns a record
oIf the latest order is in T1, then populate output fields with values from the join of T1 and T11.
oIf order dates are equal from both join results, then populate output fields with values from the join of T1 and T11 .
oIf the latest order is in T2, then populate output fields with values from the join of T2 and T22.
How do we filter the dataset based on result of table join ?
I'm unable to get the below update SQL to run in Oracle, it's giving me th below error
ORA-00933: SQL command not properly ended.
UPDATE
PDR.PH_Family_Match_by_Chassis a
SET a.Launched = 'Y'
INNER JOIN
PDR.domCHASSIS
ON
a.chassis_id = PDR.domCHASSIS.chassis_id
[code]....
I have 2 tables order_items and items.
Order_items Items
Item_id Item_id
Quantity Price
In normal sql statement: select sum(order_items.quantity*items.price) sales_price
from order_items,items
where order.item_id=items.item_id;
I have to put this logic in either a stored procedure or Function just to calculate sum(order_items.quantity*items.price) and store the aggregated value as Sales_price in DB. Then we have to call this from Informatica Stored procedure Transformation where we will have only one output port as Sales_price,this is to load into summary table. All the aggregate calculations and joining of 2 tables should be done on DB side and only one output should be populated when we execute this procedure.
My scenario is I need to insert into History table when a record is been updated into a tabular form(insert the updated record along with the additional columns Action_by,Action_type(Like Update or delete) and Action Date Into History table i.e History table contains all the records as the main table which is been visible in tabular form along with these additional columns ...Action_by,action_type and action_date.
So now i dont want to create a befor/after update trigger on base table rather i would like to create a generic procedure which will insert the updated record into history table taking the page alias and pade ID as the parameters(GENERIC procedure is nothing but whcih applies to all the tabular forms(Tables) contained int he application ).
Lets say I have three tables t1 and t2 and t3.
SELECT * FROM T1;
Id
____
1
2
3
4
SELECT * FROM T2;
Id
____
1
SELECT * FROM T3;
Id
____
1
Now when data exists in T2 and T3, I want to return only the records in T1 that match the records in T2 and T3 which is basically a normal join
select t1.id from t1, t2,t3 where t1.id = t2.id and t1.id = t3.id
However when there are no records in T2 or T3, I want to return all records in T1 i.e 1,2,3,4
One way of doing that is using the not exists clause
select * from t1 where not exists ( select null from t2 where t2.Id != t1.id) and not exists ( select null from t3 where t1.Id != t3.id)
Is there a better way of doing this in sql ?
If you have one table called CUST_ACCOUNTS and a view called CUST_ACCOUNTS -- and then you want to select from the view and not the table.Is there a prefix for views or something that I can have in front of the name to specify it's the view I want data from?
View 1 Replies View RelatedI try to do this:
CREATE MATERIALIZED VIEW MV_NESTED_DATA
NOCACHE
LOGGING
NOCOMPRESS
NOPARALLEL
BUILD IMMEDIATE
USING NO INDEX
REFRESH COMPLETE
ON DEMAND
START WITH ROUND(SYSDATE)
NEXT ROUND(SYSDATE) + 1
WITH ROWID
AS
select NESTED_TABLE_FIELD from MY_TABLE@Y_DB_LINK;
where NESTED_TABLE_FIELD is a nested table stored as T_NESTED_TABLE
And I get the error: ORA-12014: table 'T_NESTED_TABLE' does not contain a primary key constraint
Why should it if I try to create a MV with "WITH ROWID" refresh option and not "WITH PRIMARY KEY" one?
