PL/SQL :: Multidimensional Nested Table
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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Apr 29, 2009
I have to create a function which takes in 3 parameters as varchar2(SQL,From,Replace)
1) SQL is the actual SQL
2) Find is the table name to find
3) Replace is the table name to replace the found table.
Moreover there are 19 sets of Find,Replace and the above function loop through all the 19 sets to replace all the tablename in FInd with Replace. I could write the function but the problem is how do i define these sets of table names.
I tried define the tablenames as
Scrpt(1,1) = "PS_CGF_TBL"
Script(1,2)= "PS_CGF_C_TBL"
...
...
Script(19,1) = "PS_CGF_AC_TBL"
Script(19,2) = "PS_CGF_XX_TBL"
and then tried to loop it by declaring an integer as index as
For Index = 1 To 19
string = ReplaceAll(SQL, Script(Index, 1), Script(Index, 2))
Next.
I am getting error in declaring the table names.
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Aug 7, 2012
Here is a question from a past paper i took for an exam i am baffled with:
"Give a critical analysis of the need for multidimensional data modelling in contrast to relational data modelling"
I can't seem to find any arguments to discuss this point
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Sep 7, 2012
I have a table that has 2 columns of type nested table. Now in the purge process, when I try to truncate or drop a partition from this table, I get error that I can't do this (because table has nested tables). how I will be able to truncate/drop partition from this table? IF I change column types from nested table to varray type, will it work?
Also, is there any short method of moving existing data from a nested table column to a varray column (having same fields as nested table)?
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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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Aug 29, 2012
Is Oracle will support Multi value storage ? In what way we can use Nested table? In real time application where we can use nested table . What is the usage of nested table in real time application.
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May 17, 2011
what is the advantage of Nested table ?
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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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Dec 2, 2010
I 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?
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Feb 18, 2011
I have created table with nested table:
CODECREATE OR REPLACE TYPE ADDR_T AS OBJECT (
ADDR1 VARCHAR2 (50),
ADDR2 VARCHAR2 (50)
);
CREATE OR REPLACE TYPE t_ADDr AS TABLE OF ADDR_T;
[code]....
I have added some records and created index on ID column. I want to get result of CODEselect id, p.addr1,p.addr2 from nested_table n,table(n.COL1) p where id=1
Explain plan for that is:
CODESELECT STATEMENT ALL_ROWSCost: 8 Bytes: 231 Cardinality: 3
4 HASH JOIN Cost: 8 Bytes: 231 Cardinality: 3
2 TABLE ACCESS BY INDEX ROWID TABLE SYS.NESTED_TABLE Cost: 2 Bytes: 13 Cardinality: 1
1 INDEX RANGE SCAN INDEX SYS.FDSFAS Cost: 1 Cardinality: 1
3 TABLE ACCESS FULL TABLE (NESTED) SYS.COL1_TAB Cost: 5 Bytes: 163,840 Cardinality: 2,560
How to avoid full table scan on nested table? Cardinality is sum of all records in nested column in all rows in main table, why?
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Sep 11, 2012
I'm trying to sort a collection in a nested table in PL/SQL so these value can be used later for a display and for export to Excel. The sort is failing.
-- PLS-00642: local collection not allowed in SQL statements
-- PL/SQl: ORA-00902: invalid datatype
The error message are also noted below in the code on the line that fails.
A quick overview of this code- Using a nested table MyNestedTable the values from several select queries are combined into MyRecordsetZero using CURSOR, and MULTISET UNION. I'm trying to either sort MyRecordsetZero or populate MyRecordsetSorted with the sorted values for futher use.
IMPORTANT: The code is running in an enviroment that does not have permission to create.
Versions:
Oracle Database 10g Enterprise Edition Release 10.2.0.4.0 - 64bi
PL/SQL Developer: 8.0.0.1480
DECLARE
-- Declare the variable MyTID to be used by select statements and
-- set its data type and max character count
MyTID varchar2(10);
[code]....
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Nov 10, 2011
In test.pks file I declared the following type
TYPE tab_tests is table of NUMBER(15);
In test.pkb, I have the following procedure
PROCEDURE report (
i_cid IN NUMBER
)
IS
test1 tab_tests := tab_tests();
test2 tab_tests;
BEGIN
-- I populate test1 with the data and it works fine. But when I tried to make a sorted nested table with the following command.
I got this error 'ORA-00902: invalid datatype',
a nested table than the following, like a built in Oracle collection method?
execute immediate 'select cast( multiset (select * from table(test1) order by 1) as tab_tests) INTO test2 FROM dual';
END;
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Mar 12, 2012
create type nesttype as table of clob;
create table emp
(empno number,
ename varchar2(1000),
language_known nesttype
)
I want to check whether language is already there in database or not.
i have written the below query
select * from emp where language_known =nesttype('english','hindi');
i am getting the below error
SQL Error: ORA-22901: cannot compare nested table or VARRAY or LOB attributes of an object type
22901. 00000 - "cannot compare nested table or VARRAY or LOB attributes of an object type"
*Cause: Comparison of nested table or VARRAY or LOB attributes of an
object type was attempted in the absence of a MAP or ORDER
method.
*Action: define a MAP or ORDER method for the object type.
How to compare data in nested table
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Mar 4, 2013
need to use Extend() in nested tables in Oracle? What could be the problem if I do not use this method in my code?
I have a nested collection type (TABLE OF VARCHAR2(32)) declared in my package. My stored procedure takes the TABLE type as input and inserts that data into a database table.
I see that my code works fine without using EXTEND method.
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Apr 12, 2010
I am getting compilation error when create nested table type depend on table structure
SQL> CREATE OR REPLACE TYPE typ$nttb$1 IS TABLE OF emp%rowtype
2 ;
3 /
Warning: Type created with compilation errors.
SQL> show error
Errors for TYPE TYP$NTTB$1:
LINE/COL ERROR
-------- -----------------------------------------------------------------
0/0 PL/SQL: Compilation unit analysis terminated
1/29 PLS-00329: schema-level type has illegal reference to SCOTT.EMP
SQL>
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Mar 12, 2012
SCOTT@orcl_11gR2> create or replace type nesttype as table of clob;
2 /
Type created.
SCOTT@orcl_11gR2> create table emp
2 (empnonumber,
3 enamevarchar2(1000),
4 hobbynesttype)
5 nested table hobby store as hobby_nt
6 /
Table created.
SCOTT@orcl_11gR2> insert into emp values
2 (1, 'name1', nesttype ('dancing', 'cricket','listening music','dancing'))
3 /
1 row created.
SCOTT@orcl_11gR2> insert into emp values
2 (2, 'name2', nesttype ('cooking', 'dancing','cooking'))
3 /
1 row created.
I want to update nested table record based on index suppose i want to update 3rd number of hobby for name2 employee
i have written the below query
SCOTT@orcl_11gR2>update Table(select hobby from emp
2 where empno= 2) e
3 set value(e)='new_value' where to_char(value(e)) = (select 4 to_char(tab1_element)
5 from (select rownum rn,
[Code]...
2 rows updated.
but the above query is updating 2 records but my requirement is it should update only third record
How can we update nested table based on index number
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Nov 12, 2011
declare
cursor c is
select employee_id from employees;
type nst_type is table of employees.employee_id%type;
emp nst_type;
begin
open C;
loop
exit when C%notfound;
fetch c bulk collect into emp;
end loop;
close c;
end;
Above is the sample code, and now i want to pass 'emp' as an input parameter to the procedure.
How can I do that, as emp is of nst_type type and I do not know how my procedure will recognize the datatype...
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Jul 22, 2013
I am exploring the differences between OBJECT & RECORD. As i am still in process of learning, I found that both are structures which basically groups elements of different datatypes or columns of different datatypes, one is used in SQL and other is used in PL/SQL. Below i am trying to insert data into an table of type object but i am unsuccessful.
CREATE OR REPLACE type sam as OBJECT
(
v1 NUMBER,
v2 VARCHAR2(20 CHAR)
);
---Nested Table---
create or replace type t_sam as table of sam;
--Inserting data----
insert into table(t_sam) values(sam(10,'Dsouza')); Error Message:
[code]........
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Sep 21, 2011
I have a query which returns a nested table as a result of split function. I used any method to unnest the data. But I couldn't. I try it with this query.Note: To run the following query I attached everything needed.
-- This query gives very strange results.
SELECT *
FROM
(
SELECT
[code]...
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Jul 16, 2011
I have an issue on selecting data from a nested table owned by other user.
I have given select access on stc_irb_usr.stc_loy_settlebillpay_map_main to anthr user adminofs.
But when I try to query, it says insufficient privileges. adminofs is able to select other columns which are not nested.
I have given "grant execute on STC_IRB_USR.STC_BILLPAY_MAP_TAB_TYPE to adminofs;" but it did not
select * from stc_irb_usr.stc_loy_settlebillpay_map_main where rownum<3;
ERROR: OCI-21700: object does not exist or is marked for delete
SQL> desc stc_irb_usr.stc_loy_settlebillpay_map_main
Name Null? Type
----------------------------------------- -------- ----------------------------
BATCH_NUM NOT NULL NUMBER
ACCOUNT_NUM NOT NULL VARCHAR2(40)
PAY_BILL_SEQ_MAP STC_IRB_USR.STC_BILLPAY_MAP_
[Code]....
Name Null? Type
----------------------------------------- -------- ----------------------------
ALLOCATING_CREDIT_SEQ NUMBER
ALLOCATION_ENTITY_SEQ NUMBER
ALLOCATING_CREDIT_DATE DATE
ALLOCATING_CREDIT_TYPE VARCHAR2(20)
ALLOCATION_ENTITY_DATE DATE
[Code]...
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May 15, 2013
Insert values into a table. The table is called PurchaseOrder_objtab. Here is the type for the table:
CREATE TYPE PurchaseOrder_objtyp AUTHID CURRENT_USER AS OBJECT
(
PONo NUMBER,
CUST_ref REF Customer_objtyp,
OrderDate DATE,
ShipDate DATE,
[code]...
The LineItemList_ntab is a nested table.
Here is the create code for LineItemList_ntabtyp:
CREATE TYPE LineItem_objtyp AS OBJECT (
LineItemNo NUMBER,
Stock_ref REF StockItem_objtyp,
Quantity NUMBER,
Discount NUMBER
)
[code]...
In the above code, the LineItemList_ntab is an empty LineItemList_ntabtyp. I am wanting to add values to this nested table rather than it being empty in the INSERT INTO code.
Here is some of the code I have tried to insert values with:
INSERT INTO PurchaseOrder_objtab
SELECT 1008, REF(C),
SYSDATE, '12-MAY-1999',
LineItemList_ntabtyp(1, REF(StckItem), 10, 1) FROM Stock_objtab StckItem WHERE StckItem.StockNo = 1004,
NULL
[code]...
The first insert statement above produces the following error:
SQL Error: ORA-00933: SQL command not properly ended
The second insert statement above produces the following error:
SQL Error: ORA-00936: missing expression
successfully insert values into the LineItemList_ntab nested table?
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May 10, 2013
I have a doubt how to pass input parameter for nested table which is declared as input parameter in procedure.
CREATE TYPE t_example AS OBJECT(msg_text VARCHAR2(100), bundle_msg_text VARCHAR2(100), version NUMBER(10))
/
create type t_msg_details ia table of t_example
/CREATE TABLE table_nested_sample
(msg_codes NUMBER(10),
language_id NUMBER(10),
[Code]...
How to call this procedure I want to insert data like this
Msg_codes Language_id Language_name msg_text_details
101 1 ENG "msg_test" "Bundle_msg_text" 1
"msg_test_1" "Bundle_msg_text_2" 2
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Jun 18, 2013
I am trying to exp/imp database schema from one environmet to other in oracle 11g. I have a couple nested tables (tables with types datatype). Here are the errors I am getting:
ORA-31693: Table data object "IPAM"."BACKEND_POLICY_TYPES" failed to load/unload and is being skipped due to error:
ORA-02354: error in exporting/importing data
ORA-00600: internal error code, arguments: [kpudpxcs_getCol_ref_4], [Imgver=1 InputStrmVer=9 Name=POLICY], [], [], [], [], [], [], [], [], [], []
ORA-31693: Table data object "IPAM"."LB_POLICIES" failed to load/unload and is being skipped due to error:
ORA-02354: error in exporting/importing data
ORA-00600: internal error code, arguments: [kpudpxcs_getCol_ref_4], [Imgver=1 InputStrmVer=9 Name=POLICY], [], [], [], [], [], [], [], [], [], []
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Feb 17, 2010
I have some problem when i try to export data from a table which contains a nested table, using toad.
When toad generate the file, in the column corresponding to the nested table, toad just write a (DATASET) instead of the data contained in the nested table
Here is an example:
INSERT INTO SSD_REV_S ( REV_ID, REV_TAB, REV_TS, REV_USER, REV_LOG )
VALUES (
TO_Date( '07/30/2007 12:00:00 AM', 'MM/DD/YYYY HH:MI:SS AM'), (DATASET), TO_TIMESTAMP('4/3/2009 11:20:51.000000 AM','fmMMfm/fmDDfm/YYYY fmHH12fm:MI:SS.FF AM'), 'operator', 'Add EVENT');
REV_TAB is my nested table
way to export data from a table which contain a nested table, as a list of insert statement, so i can move the data to a different database schema? I can also use different client tool.
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Mar 19, 2013
CREATE TYPE TEST_103 AS OBJECT(CHILD_CSE_ID VARCHAR2(25));
CREATE TYPE TEST_104 AS TABLE OF TEST_103;
CREATE TABLE TEST_105 (
CL_ID VARCHAR2(25),
CSE_ID VARCHAR2(14),
EXP_ID VARCHAR2(13),
[code]....
I want an XML output like as follows
<?xml version="1.0" encoding="UTF-8"?>
<Main_case>
<cl_id="A">
<cse_id="100">
<cs_lst>
[code]....
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Oct 8, 2013
How to create this pl/sql process to add elements to a nested table or varray within a loop. Here's the scenario: I have an apex package that has some pl/sql processes and some stored procedures. I am dealing with Inspection Areas. An Inspection Area has several sectors. I already have the loop that lists all the Inspection Areas and a loop inside that loop that lists all the sectors. There is an if statement that determines whether or not the sector name gets stored in the varray or table. I am not sure how to correctly do this and am not sure whether to use a nested table or varray. I've posted somewhat of a pseudo coded example below
If (you_belong_in_table) then
variable := store_me_in_varray /* OR */
variable := array_type(sector.sector_name)
i := i + 1;
end if;
/* Now we output our varray or table */
start loop
output(sector names one by one)
end loop I hope this makes sense. I more so just need the syntax to be able to continually added values to a table or varray while I'm already inside a loop; and also how to output those values end the end as well.
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Jun 4, 2013
What is the real time uses for Associative array, nested table and varray ?
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Mar 17, 2012
I've to do a update activity for data correction. There are about 1 crore records involved in this. I want to keep a log of the activity at least Sales No. so that I can validate my data correction. Main cursor is involved for this. The problem is if I insert each record for sales number in the loop then process will take about double time. So i decided to create a nested table and insert after each session finishes.
I'm talking about session here is. The table I'm updation is partition table. So I can have many sessions and each session updating different table partition. This way there is no lock, better performance. Server has 35 processors so I can at least have 25 sessiions.
I could have used varray for this. But I want to learn nested table also. Problem here is not to take different way to complete this activity but to learn why I'm facing this issue.
CREATE OR REPLACE TYPE OBJ_TXN_LOG AS OBJECT
(
SALES_NO VARCHAR2(24)
,sALES_SEQ NUMBER(4)
) ;
[code]...
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May 10, 2011
Is there a way we could define a record or a nestedtable with a type based on weak refursor i.e
TYPE RC IS REF CURSOR;
C2 RC;
Type t is table of c2%rowtype;
Following is some more explanation of what I am trying to do.
I have a table T with column A and B. Column A is a primary key with number 1,2,3,4,5,6, Column B has diffrent sql stmts stored. i.e 'Select * from emp', Select count(1) from dept' and so on. So table will look like
1 Select * from emp
2 Select count(1) from dept
Now I want to select statements stored in table T one by one and execute them by using cursor. Problem arises as i need to fetch the cursor into some variable but the outcome of each statment is diffrent and oracle does not allow to use cursorname%rowtype for a weak ref cursor.
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Nov 12, 2010
I am expecting the input to my procedure will be in the following format
'AAA, aaa, Aa12|BBB, bbb, bb2B|dd3, DDDE,ddd67'
I need to convert it to nested table and when I query the nested table , the output should be
column_value
------------
AAA
aaa
Aa1
BBB
bbb
bb2B
dd3
DDDE
ddd67
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