SQL & PL/SQL :: Set Operations With Nested Tables?
Aug 20, 2010
In the example below I believe I have created a Nested Table of PL/SQL type and have tried various references to get the SET operation to work, line containing MEMBER OF. Taking the example below from the oracle documentation I have two questions.
1) As I understand it I should be able to use SET operations on Nested tables of PL/SQL types, (I am not using the CREATE OR REPLACE DDL statement prior to the DECLARE block.).
Is this correct?
2) I am assuming that I have to reference the record, can I reference by its type / row instance or can I only retrieve the record like a Cursor Fetch solution, (which would defeat the purpose.).
Is this a SQL to PL/SQL <> PL/SQL to SQL problem?
download.oracle.com/docs/cd/B19306_01/appdev.102/b14261/collections.htm
Example 5-24 Comparing Nested Tables with Set Operator
SET serveroutput ON
DECLARE
answer BOOLEAN;
[code]...
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Oct 30, 2012
I want to make sure I am describing correctly what happens in a query where there is distributed database access and it is participating in a NESTED LOOPS JOIN. Below is an example query, the query plan output, and the remote SQL information for such a case. Of particular note are line#4 (NESTED LOOPS) and line#11 (REMOTE TABLE_0002).
What I want to know is more detail on how this NESTED LOOPS JOIN handles the remote operation. For example, for each row that comes out of line#5 and is thus going into the NESTED LOOPS JOIN operation @line#4, does the database jump across the network to do the remote loopkup? Thus if there are 1 million rows, does that mean 1 million network hops? Does batchsize play a role? For example, if the database batches in groups of 100 then does that mean 10 thousand network hops?
I think each row that comes out of line#5 means a network hop to the remote database. But I do not know for a fact.I have done some abbreviating in the plan in an attempt to make it fit on the page (line#7 TA = TABLE ACCESS).
SELECT A.POLICY ,
F.MIN_MEMBER_ID,
MIN(A.EFF_DATE) EFF_DATE,
A.EXP_DATE ,
G.DESCRIPTION PROGRAM_NAME,
[code]...
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Jul 5, 2013
I have a two different Databases. I created a db link in DB 1 to connect to DB 2 and it is working fine when I select data from any table. but I have one table in the DB2 which has a column with user defined data type . so when I try to select this column from DB 2 by using the DB link it gives me this error :ORA-22804 remote operations not permitted on object tables or user-defined type columns.
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Feb 1, 2011
There's a table T with a nested table within it on the master database. I need to mantain a materialized view of the table T on a remote database.
I get this error: QUOTE ORA-22804: remote operations not permitted on object tables or user-defined type columnsIs there any recommended workaround of this problem? The remote data must have the same structure as the master one.
The data should be refreshed every day, the data changes moderately, there are more or less 500 records.
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Jul 1, 2013
SF at oracle.com/technetwork/issue-archive/o53plsql-083350.html states that you can compare two database tables (of the same structure) by defining a nested table type (using %ROWTYPE) and two NT variables of that type, and loading the contents of each table into its respective NT variable, before comparing them using the = operator. Having read the Oracle documentation which states that you can only compare NTs for equality if they don't contain record types, I was surprised to read this, but figured I would try it because I must be misunderstanding SF, but it didn't work.
SCOTT@ORCL> create table empcopy3 as select * from emp;
Table created.
declare
type emp_ntt is table of emp%rowtype;
emp_nt1 emp_ntt;
[Code]....
But SF goes on to say he timed the execution of his NT equality method, comparing it with a SQL-only equivalent, and so I must be missing something. My understanding is that using %ROWTYPE declares a record type.
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Aug 30, 2010
I have a query regarding nested tables while exporting. Are we not allowed to use Query clause during the export of nested table?
I am getting the error:
"EXP-00053: unable to execute QUERY on table NT_LP_COREBAL_MAINT because the table has inner nested tables
Export terminated successfully with warnings."
The exp command we are using is:
exp XXXX/XXXX@XXXX file=test1.dmp log=test1.log tables=nt_lp_corebal_maint query='where domain_id=10110307'.
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Mar 15, 2011
How can I search in Nested Tables ex: (pr_travel_date_range,pr_bo_arr) using the SQL below and insert the result into a new Nested Table: ex:g_splited_range_arr.
Here are the DDL and DML SQLs;*Don't worry about the NUMBER( 8 )*
CREATE OR REPLACE TYPE DATE_RANGE IS OBJECT ( start_date NUMBER( 8 ), end_date NUMBER( 8 ) );
CREATE OR REPLACE TYPE DATE_RANGE_ARR IS TABLE OF DATE_RANGE;
DECLARE
g_splited_range_arr DATE_RANGE_ARR := DATE_RANGE_ARR( );
[code]...
Or can I create a VIEW with parameters of Nested Tables in it so I can simply call
SELECT *
BULK COLLECT INTO g_splited_range_arr
FROM view_split_date(g_travel_range,g_bo_arr);
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Mar 22, 2012
these are the sample data :
CREATE OR REPLACE TYPE CourseList AS TABLE OF VARCHAR2(64);
CREATE TABLE department (
courses CourseList)
NESTED TABLE courses STORE AS courses_tab;
INSERT INTO department (courses)VALUES (CourseList('1','2','3'));
[code]....
The query returns the correct data, CourseList that are not subset of any other CourseList of the table.
I am trying to convert this not exists in a left outer join query to check if the performance is better, but I don't know how to do it.
I was making some variations of this code :
select d1.courses c_1, d2.courses c_2
from department d1,department d2
where d1.courses<>d2.courses(+);
but it is now working.
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Dec 16, 2011
I am creating an stored function which has to do some inserts in the meanwhile, and return after all the work has done, an UDT (2 or 3 columns of NUMBER datatype).
With this scenario I have an problem. The DML operations are not supported by and "SELECT * FROM Table(MyProc(args))". I have to use this "SELECT * FROM Table(MyProc(args))" because I need to pass the stored function results directly to an dataset.
Using a Stored Procedure it gives no errors, but the arguments must be passed like OUT params, and it is not what I want.
My question is:
Is there any other way to get a result (UDT) of an Stored Function (that makes Inserts) into a DataSet?
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Feb 11, 2011
Is there any way to know Last Commited DML Operations Over a table?
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Apr 12, 2013
I created a table with a column "id" and values for this column is attached a sequence. And now i need, if any value deleted from the table the column "id" will need to be sequence.
ex:
id name
-- -------
1 xxxx
2 yyyy
3 zzzzz
4 pppp
5 rrrrrr
if i delete
delete from test where id=4;
then automatically.. "id" column values will again in sequence... like this
id name
-- -------1 xxxxx
2 yyyyy
3 zzzzzz
4 rrrrrr
note: in the above if i delete the id=4 from the table again it will have be in sequence and if i inserted the again it has to take the next value continue to sequence....
ex : insert to test values(seq_name.nextval,'tttt');
id name
-- -------
1 xxxxx
.
.
.
4 rrrrr
5 ttttt
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May 25, 2010
Doing some data conversion at the moment and using V$SESSION_LONGOPS to predict when the current task will be finished so I can run the next one.
V$SESSION_LONGOPS seems to have only the last 16 long operations for the session. Older operations are automatically purged. My bigger tables have 32 partitions, so after the first 16 are processed, I cannot tell which partition I am up to.
Googling "old longops" and "longops history" didn't work, nor did the same searches on this site. The Oracle Reference manual section on V$SESSION_LONGOPS did not mention that older entries are purged.
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Aug 16, 2012
I am trying to run spatial operations through dblinks. See the example query below
select a.OGC_GEOMETRY.sdo_gtype from <table>@dblink a where sdo_nn(a.OGC_GEOMETRY,mdsys.sdo_geometry(2001,null,mdsys.sdo_point_type(0,0,null),null,null),'sdo_num_res=1')='TRUE'.
Query fails with the following error
ORA-13249:
ORA-06512: at "MDSYS.MD", line 1723
ORA-06512: at "MDSYS.MDERR", line 17
ORA-06512: at "MDSYS.PRVT_IDX", line 9
*13249. 00000 - "%s"*
**Cause: An internal error was encountered in the extensible spatial index*
component. The text of the message is obtained from some
other server component.
**Action: Contact Oracle Support Services with the exact error text.*
Same Query runs fine in the original database but fails with dblinks. Is it possible to run spatial operations through dblink?
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Sep 25, 2008
When attempting to create the following table I recieve the error
count(m.mission_id) < 4
ERROR at line 9:
ORA-00905: missing keyword.
assist in order to resolve this error.
CREATE TABLE AM_agents
AS
(
SELECT
a.first_name || ' ' || a.last_name fullname,
'agent' person_type,
[code]...
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May 15, 2013
I'm a software developer, not an Oracle DBA
Our product runs a lot of stored procedures in the background to do various things. These stored procedures obviously include a ton of select statements, insert statements, etc. Some of them get pretty complex. Once in a while, we run across the following error: "ORA-03127: no new operations allowed until the active operation ends(3127)." Once this happens, pretty much everything breaks with this error for a while. Eventually (LOOOONG time), this error "resolves itself" and things start working again. Conceptually, I understand that there seems to be some blocking operation on the DB, but because we run a LOT of stored procedures and SQL statements, it's extremely difficult to pin this down.
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Feb 22, 2013
Is there anyway to compare the non numeric data in a table to a numeric number.Want to run a query like
SELECT rank_id
FROM mas_rank
WHERE rank_code > 26 Rank_code contains numeric as well as some non numeric data
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Sep 14, 2011
I am fetching data in the following set
NameWeight_LWWeight_TWChange
A56 56 0
B34 NULL -34
CNULL 77 77
Here Change=(Weight_TW -Weight_LW)
I should get values as 0, -34 and 77. But I don't get this as all operations with null gives null. These are fetched data and don't exist in the form shown. I have to use these row values of "Change" further. Is there any way of obtaining these results?
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Apr 2, 2012
I am executing a sql statement which is doing FTS in parallel mode The server has 8 cpus and threads_per_cpu is 2
The v$sql shows PX_SERVERS_EXECUTIONS as 8
select PX_SERVERS_EXECUTIONS, sql_text from v$sql where sql_id='0q0nk5117yth2'
8, select /*+ full(a) parallel(a)....
however the px_sessions shows 17 sessions (16 parallel session + 1 parent session (where sid = qcsid) Now in px_sessions, these 16 parallel session are divided in 2 server sets 1 and 2 and values for degree and required degree are 8 and 16 respectively
However, all the time, only 8 sessions which belong to server set = 1, were active though its state was waiting with event "PX Deq Credit: send blkd"
The other session which belong to server set = 2 were never active and always had waint event ='PX Deq: Execution Msg'
what could be the reason that 16 parallel session could not be started though I am the only person using the server, there aren't any batch jobs, dbms_jobs,even archivelogs (not a prod system)?
Note that paralel_max_servers setting is 16
Another issue being the duing start of the query approximately 100-115 blocks were read for the query (checked from longops) however after 60-70% blocks are read the number of blocks read / seconds falls down to 10-20 blocks / second across all parallel sessions.
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May 10, 2011
I am trying to insert data in one of the tables called as tstcntr_mstr in ibpslive instance by ibpslive user.
My source tables are on ncfiiidv instance.
Query is as follows:
insert into tstcntr_mstr
(select * from tstcntr_mstr@dlink_ncfmdv)
Error that I get is remote operations not permitted on object tables or user-defined type columns.
Table tstcntr_mstr@dlink_ncfmdv contains types.
the migration of the data.
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Nov 27, 2012
Background: We are migrating a lot of databases from one SAN appliance to another. We are doing this by adding new disks from the new SAN appliance to the existing disk groups, re balancing, removing the old disks from the disk groups, and then re balancing again.
Question: If I execute two ALTER commands with the same power on 2 or more separate disk groups, do both operations start executing right away? Or do they queue up and execute one after another?
I ask because we would like to queue up several re-balances so we don't have DBAs watching status bars all day.
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Aug 23, 2011
I have enabled Auditing in my oracle Database but I am not able to see any database for the operations of sys user or any other user in my "SYS.AUD$" and "SYS.FGA_LOG$" tables.
Value for the parameter "AUDIT_TRAIL" is set to "db,extended".
I am working as "SYS" user and I have shutdown and again startup the database but neither there was any information in both the tables nor I can see any files at the destination specified by "AUDIT_FILE_DEST".
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Jan 9, 2013
a material related to collections with Examples and also how to declare table type values.
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Mar 1, 2012
DROP TABLE BatchEnrollment;
CREATE TABLE BatchEnrollment (
servicepointid VARCHAR(100),
curtailprogramid VARCHAR(100)
)
[Code]....
------------
Question I am getting error.
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Jul 24, 2007
I have here my SQL
-> INSERT into myTable (col1, col2, col3) values(SELECT table_seq.nextval from dual, 'value2', 'value3');
That's not working...
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Jan 23, 2011
When i am trying to use another RECORD as a NESTED RECORD into another program, it shows the below error: "PLS-00201: identifier 'TIMEREC' must be declared"
Record 1:
---------
declare
type timerec is record ( seconds smallint);
begin
dbms_output.put_line('Hello');
end;
Record 2:
---------
declare
type days is record (day number(5),time timerec);
begin
dbms_output.put_line('Hello');
end;
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Jul 13, 2010
I'm working on a nested case statement, can't seem to get it right.We have a table that has injury_codes. What I'm trying to do is come with a nested case statement that will put the codes in a specific_cat, and based on the specific_Cat, assign a Generic_cat.
Example.
I have codes 11,12,13,14,15, 15, 17, 18, 19, 20, 21, 22
Codes 11, 12, 13 have a specific_cat "Head Injury"
Codes 14, 15, 16 have a specific_cat "Spinal Injury"
Codes 17, 18 have a specific_cat "Burns".
All 3 of these specific_cat come under the generic_cat "Trauma"
Codes 19, 20 have a specific_Cat "High Risk Pregancy"
Codes 21, 22 have a specific_cat "Premature Birth".
All 2 of these specific_cat come under the generic cat "OBGYN"...So my case stement should return :
CODESSPECIFIC_CATGeneric_Cat
11Head InjuryTrauma
12Head InjuryTrauma
13 Head InjuryTrauma
14Spinal InjuryTrauma
15Spinal InjuryTrauma
16Spinal InjuryTrauma
[code]...
just a small sample of codes, specific_Cat and generic_cat. I hundreds of these codes I need to categorize.
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May 17, 2011
what is the advantage of Nested table ?
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Sep 5, 2013
collection1
============
SELECT o.object_id
BULK COLLECT INTO l_obj_info
FROM (SELECT n.node_id, n.object_id
FROM nodes n
START WITH n.node_id = 100
CONNECT BY PRIOR n.node_id = n.parent_node_id) n
INNER JOIN objects o ON n.object_id = o.object_id
WHERE o.object_type_id = 285;
collection2
============
SELECT *
BULK COLLECT INTO l_tab
FROM ((SELECT REGEXP_SUBSTR (i_l_text, '[^,]+', 1, LEVEL)
FROM DUAL
CONNECT BY REGEXP_SUBSTR (i_l_text, '[^,]+', 1, LEVEL) IS NOT NULL));
END;
collection3
============
SELECT o.object_id
BULK COLLECT INTO l_fin_tab
FROM objects o JOIN ATTRIBUTES att ON o.object_id = att.object_id
WHERE o.object_id = collection1.object_id
AND att.VALUE = collection2.val;
how to implement for loop in the collection3 to get the values from collection1 and collection2. i have tried in the below way
CREATE OR REPLACE TYPE LIST_OF_ATTRIBUTES_TYPE AS TABLE OF varchar2(4000);/
CREATE OR REPLACE TYPE LIST_OF_OBJECT_IDS_TYPE AS TABLE OF number(9);/
CREATE OR REPLACE FUNCTION f_get_objects_by_type_id ( i_object_type_id IN NUMBER, i_l_text IN VARCHAR2, i_scope_node_id NUMBER)
[Code]....
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Sep 10, 2013
I am studing Multidimensional Nested table and have the below code:
DECLARE TYPE table_type1 IS TABLE OF INTEGER; TYPE table_type2 IS TABLE OF TABLE_TYPE1;
table_tab1 table_type1 := table_type1();
table_tab2 table_type2 := table_type2(table_tab1);
BEGIN FOR i IN 1 .. 2 LOOP table_tab2.extend;
table_tab2(i) := table_type1();
[Code]...
exception when others then dbms_output.put_line(sqlerrm);END; This code is working fine as of now.But,If i comment below code(table_tab2 is also extended latter):
table_tab2.extend;
table_tab2(i) := table_type1();
then it gives me error 'Subscription Beyond count'. I would like to know why i need to extend table_tab2 twice?!
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Jul 11, 2011
I want to truncate table partition but I'm getting error:
CODEORA-02266: unique/primary keys in table referenced by enabled foreign keys
because of table has a nested table. Currently this column is not in use so I could drop it, but I want to avoid it (table is huge). Is there another posibility to do truncate partitions in this table? ALTER TABLE ... SET UNUSED doesn't resolve the problem.
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