Error While Creating Nested Table in Oracle - oracle

Question

Below is the Tables i have created.
CREATE TYPE ft_obj AS OBJECT (
ftid NUMBER(5),
ftlocation VARCHAR(30),
country VARCHAR(10)
);
/
CREATE TABLE ft_table OF ft_obj (
ftid PRIMARY KEY
) OBJECT IDENTIFIER IS PRIMARY KEY;
/
CREATE TYPE frod_obj AS OBJECT (
prodid NUMBER(6),
ft_ref ft_obj,
proddesc VARCHAR(50),
costperitem DECIMAL,
labcostperitem DECIMAL
);
/
CREATE TABLE frod_table OF frod_obj (
prodid PRIMARY KEY
) OBJECT IDENTIFIER IS PRIMARY KEY;
CREATE TYPE wf_obj AS OBJECT (
wfid NUMBER,
ft_ref ft_obj,
wfname VARCHAR(30),
taxcode INT,
yearlyincome DECIMAL,
yearlytax DECIMAL
);
/
CREATE TABLE wf_table OF wf_obj (
wfid PRIMARY KEY
) OBJECT IDENTIFIER IS PRIMARY KEY;
/
CREATE TYPE wfusage_obj AS OBJECT (
jobdate DATE,
jobhours INT,
jobhourlyrate DECIMAL,
jobposted CHAR,
wfid_ref REF wf_obj
);
/
CREATE TYPE wfusage_nesttabtyp AS
TABLE OF wfusage_obj;
/
CREATE TABLE wfusage_objtab OF wfusage_obj;
/
CREATE TYPE odetails_obj AS OBJECT (
mfid NUMBER,
prodid_ref REF frod_obj,
quantity INT,
itemprice DECIMAL,
wfusage_ntab wfusage_nesttabtyp
);
/
CREATE TYPE odetails_nesttabtyp AS
TABLE OF odetails_obj;
/
CREATE TYPE prod_obj AS OBJECT (
prodoid NUMBER,
odate DATE,
promisedate DATE,
completiondate DATE,
shipmentdate DATE,
status VARCHAR(20),
odetails_ntab odetails_nesttabtyp
);
/
CREATE TABLE prod_objtab OF prod_obj (
PRIMARY KEY ( prodoid )
) OBJECT IDENTIFIER IS PRIMARY KEY
NESTED TABLE odetails_ntab STORE AS oprod_ntab ( (
PRIMARY KEY ( nested_table_id,
mfid )
)
ORGANIZATION INDEX
COMPRESS ) RETURN AS LOCATOR
/
ALTER TABLE oprod_ntab ADD (
SCOPE FOR ( prodid_ref ) IS frod_table
);
/
Getting the below error while creating Nested Table.
ORA-02320: failure in creating storage table for nested table column
odetails_ntab ORA-25175: no PRIMARY KEY constraint found
02320. 00000 - "failure in creating storage table for nested table column %s"
*Cause: An error occurred while creating the storage table for the
specified nested table column.
*Action: See the messages that follow for more details. If the situation
they describe can be corrected, do so; otherwise contact Oracle
Support.
INSERT INTO prod_objtab VALUES ( 45000,
'12-April-2019',
'01-MAy-2019',
'01-MAy-2019',
'01-MAy-2019',
'COMPLETED',
odetails_nesttabtyp()
);
INSERT INTO TABLE (SELECT pr.odetails_ntab FROM prod_objtab pr WHERE pr.prodorderid = 45000 )
values (45001,(SELECT REF(pt) FROM frod_table pt WHERE pt.prodid = 10001 ),100,500,
wfusage_nesttabtyp(wfusage_obj('12-April-2019',60,100,'AME',
(SELECT REF(wf) FROM wf_table wf WHERE wf.wfid = 240))));
getting the error in line 9
ORA-01401: inserted value too large for column

Answer 1

ORA-02320: failure in creating storage table for nested table column
odetails_ntab ORA-25175: no PRIMARY KEY constraint found 02320. 00000
- "failure in creating storage table for nested table column %s" *Cause: An error occurred while creating the storage table for the specified nested table column. *Action: See the messages that follow
for more details. If the situation they describe can be corrected, do
so; otherwise contact Oracle Support.
Since you have done Multi-level nesting, while creating the table you need 2 levels of Storage as well for the Nested tables. See below how you can do it.
CREATE TABLE prod_objtab OF prod_obj (
PRIMARY KEY ( prodoid )
) OBJECT IDENTIFIER IS PRIMARY KEY
NESTED TABLE odetails_ntab STORE AS oprod_ntab ( ( PRIMARY KEY (NESTED_TABLE_ID, mfid ))
ORGANIZATION INDEX COMPRESS
NESTED TABLE wfusage_ntab STORE AS XX ) RETURN AS LOCATOR;
Read more at
https://docs.oracle.com/en/database/oracle/oracle-database/18/adobj/multilevel-collection-types.html#GUID-76D5A6B0-28AD-483D-942C-B7F3B90AC379