Say I have 2 objects MY_OBJ, MY_NESTED_TABLE_OBJ
CREATE OR REPLACE TYPE MY_NESTED_TABLE_OBJ IS TABLE OF VARCHAR2(100);
CREATE OR REPLACE TYPE MY_OBJ AS OBJECT (
simple_atribute NUMBER(6),
table_attribute MY_NESTED_TABLE_OBJ,
MEMBER PROCEDURE doStuff(text VARCHAR2)
) NOT FINAL INSTANTIABLE;
MY_OBJ's table
CREATE TABLE TBL_MY_OBJ OF MY_OBJ
( CONSTRAINT PK_simple_atribute PRIMARY KEY(simple_atribute))
NESTED TABLE table_attribute STORE AS attribute_nst;
How do I insert a VARCHAR2(100) into the nested table belonging to table_attribute?? What is the sintax??
Doing a simple insert like: INSERT INTO attribute_nst VALUES ('some text'); gives the error
cannot reference nested table column's storage table
What i want is to do insert from within PROCEDURE doStuff(text VARCHAR2), i've tried:
INSERT INTO SELF.attribute_nst VALUES (text);
INSERT INTO attribute_nst VALUES (text);
INSERT INTO table_attribute VALUES (text);
...and other combination and no nothing, so please help!
SQL> CREATE OR REPLACE TYPE BODY MY_OBJ AS
2 member procedure doStuff(text varchar2) is
3 begin
4 table_attribute.extend(1);
5 table_attribute(table_attribute.count) := text;
6 end;
7 end;
8 /
Type body created.
SQL> declare
2 l_my_obj My_Obj := My_Obj(1,MY_NESTED_TABLE_OBJ());
3 begin
4 l_my_obj.doStuff('abc');
5 l_my_obj.doStuff('def');
6
7 insert into tbl_my_obj values (l_my_obj);
8 end;
9 /
PL/SQL procedure successfully completed.
SQL> select * from tbl_my_obj;
SIMPLE_ATRIBUTE
---------------
TABLE_ATTRIBUTE
------------------------------------------------------------
1
MY_NESTED_TABLE_OBJ('abc', 'def')
Try this
insert into tbl_my_obj values (1, new my_nested_table_obj(text1, text2));
Related
I'm getting the PLS-00355 error while trying to create the new type like this:
CREATE OR REPLACE TYPE DAYS_T IS TABLE OF VARCHAR(250) INDEX BY BINARY_INTEGER;
Any clue what is wrong?
Many thanks!
This is what you did and how Oracle responded:
SQL> CREATE OR REPLACE TYPE DAYS_T IS TABLE OF VARCHAR(250) INDEX BY BINARY_INTEGER;
2 /
Warning: Type created with compilation errors.
SQL> show err
Errors for TYPE DAYS_T:
LINE/COL ERROR
-------- -----------------------------------------------------------------
0/0 PL/SQL: Compilation unit analysis terminated
1/16 PLS-00355: use of pl/sql table not allowed in this context
On the other hand:
SQL> CREATE OR REPLACE TYPE DAYS_T IS TABLE OF VARCHAR2(250);
2 /
Type created.
SQL>
Responding to your comment: if you declared type at PL/SQL level (not SQL), then your code (without create or replace, though) would be OK (line #2 is what you used, literally):
SQL> declare
2 TYPE DAYS_T IS TABLE OF VARCHAR(250) INDEX BY BINARY_INTEGER;
3 begin
4 null;
5 end;
6 /
PL/SQL procedure successfully completed.
SQL>
You can define a nested table collection type in the SQL scope using:
CREATE OR REPLACE TYPE DAYS_T IS TABLE OF VARCHAR(250);
You can define an associative array collection type in a PL/SQL scope using:
DECLARE
TYPE DAYS_T IS TABLE OF VARCHAR(250) INDEX BY BINARY_INTEGER;
BEGIN
NULL;
END;
/
You could also locally define a nested-table collection type in a PL/SQL scope using:
DECLARE
TYPE DAYS_T IS TABLE OF VARCHAR(250);
BEGIN
NULL;
END;
/
However, you cannot define an associative array collection type in the SQL scope as it is a PL/SQL only data type.
You then asked in comments:
But how can I add an index?
They both have an index.
For example, after declaring the type in SQL, you can use the nested table collection in PL/SQL like this:
DECLARE
v_days DAYS_T;
BEGIN
v_days := DAYS_T(); -- Initialise the collection.
v_days.EXTEND(3); -- Extend the collection by 3 elements.
v_days(1) := 'Monday'; -- Set the first element.
v_days(3) := 'Wednesday'; -- Set the third element.
FOR i IN 1 .. v_days.COUNT LOOP
DBMS_OUTPUT.PUT_LINE( i || ' = ' || v_days(i) );
END LOOP;
END;
/
Which outputs:
1 = Monday
2 =
3 = Wednesday
db<>fiddle here
I get these errors during a creation of a trigger but I don't understand why
create or replace NONEDITIONABLE TRIGGER magazzino_bef_ins
BEFORE INSERT ON MAGAZZINO
FOR EACH ROW
DECLARE
tempcodice varchar2(8);
cacc char(3);
ogg int;
CURSOR cursore_disp IS
SELECT cacciatore, oggetto
FROM TABLE EDDY.disponibilita
WHERE ID_DISPONIBILITA = :NEW.disponibilità;
BEGIN
CURSOR cursore_disp IS
SELECT cacciatore, oggetto
FROM TABLE DISPONIBILITA
WHERE ID_DISPONIBILITA = :NEW.disponibilità;
open cursore_disp;
fetch cursore_disp into cacc,ogg;
temp:= pk_gestione_magazzino.genera_catalogo(cacc,ogg);
:new.codcatalogo:=temp;
END;
The errors are:
Error(5,9): PL/SQL: SQL Statement ignored
Errore(6,20): PL/SQL: ORA-00906: missing opening parenthesis
Errore(9,8): PLS-00103: encountered symbol "CURSORE_DISP" instead of one of the following: := . ( # % ;
I can't understand these errors, I'm just trying to take the values from a table in where the id inserted is equal in the other table.
Here's how. I created test environment which is kind of stupid, but it makes the following code work.
SQL> create table magazzino (disponibilita number, codcatalogo varchar2(8));
Table created.
SQL> create table disponibilita (cacciatore char(3), oggetto number, id_disponibilita number);
Table created.
SQL> create or replace package pk_gestione_magazzino as
2 function genera_catalogo (cacc number, ogg number) return varchar2;
3 end;
4 /
Package created.
SQL> create or replace package body pk_Gestione_magazzino as
2 function genera_catalogo (cacc number, ogg number) return varchar2 is
3 begin
4 return 'Little';
5 end;
6 end;
7 /
Package body created.
Trigger which causes you trouble: no need for a cursor; moreover, you have two of them (was it just a typo)? It looks as if you used it to avoid no data found error. If so, don't do it - it just makes confusion. Handle exceptions properly. By the way, you "forgot" to close the cursor.
SQL> create or replace trigger magazzino_bef_ins
2 before insert on magazzino
3 for each row
4 declare
5 cacc char(3);
6 ogg int;
7 begin
8 select cacciatore, oggetto
9 into cacc, ogg
10 from disponibilita
11 where id_disponibilita = :new.disponibilita;
12
13 :new.codcatalogo := pk_gestione_magazzino.genera_catalogo (cacc, ogg);
14 end;
15 /
Trigger created.
Testing:
SQL> insert into disponibilita values (1, 1, 1);
1 row created.
SQL> insert into magazzino (disponibilita) values (1);
1 row created.
SQL> select * From magazzino;
DISPONIBILITA CODCATAL
------------- --------
1 Little
SQL>
Works, kind of.
I am trying to create a table function to use in tableau's custom SQL, but I am getting an error, type mismatch found between FETCH cursor and INTO variable. Below is the code I am trying, I have created a type object and table of that type object. Function my_fct should return the table with a select statement output.
CREATE
OR replace type DATA_OBJ AS OBJECT (
id varchar2(10)
);
CREATE
OR replace type
DATA_OBJ_TAB AS TABLE OF DATA_OBJ;
CREATE OR REPLACE FUNCTION my_fct()
RETURN DATA_OBJ_TAB PIPELINED
AS
TYPE CurTyp IS REF CURSOR RETURN DATA_OBJ_TAB%ROWTYPE;
rc CurTyp;
CURSOR data IS SELECT ID from alumni_data;
BEGIN
FOR rc IN data LOOP
PIPE ROW (rc);
END LOOP;
END;
This can be implemented with a packaged PTF without using the SQL data types at all.
Something like this:
create table alumni_data (id, memo) as
select rownum id, 'memo '||rownum from dual connect by level<=3
/
create or replace package pack as
type arrT is table of alumni_data%rowtype;
function get (c varchar2) return arrT pipelined;
end;
/
create or replace package body pack as
function get (c varchar2) return arrT pipelined is
arr arrT;
begin
select * bulk collect into arr
from alumni_data
where memo like c||'%';
for i in 1..arr.count loop
pipe row (arr(i));
end loop;
return;
end;
end;
/
Result:
select * from pack.get ('mem');
ID MEMO
---------- ---------------------------------------------
1 memo 1
2 memo 2
3 memo 3
Have a look at the following example:
SQL> create or replace type data_obj as object
2 (id varchar2(10));
3 /
Type created.
SQL> create or replace type
2 data_obj_tab as table of data_obj;
3 /
Type created.
SQL> create or replace function my_fct
2 return data_obj_tab pipelined
3 as
4 l_vc data_obj := data_obj(null);
5 begin
6 for cur_r in (select id from alumni_data) loop
7 l_vc.id := cur_r.id;
8 pipe row (l_vc);
9 end loop;
10 return;
11 end;
12 /
Function created.
SQL> select * from table(my_fct);
ID
----------
CLARK
KING
MILLER
SQL>
I am using Toad. I have a declaration of a table in a package as follows:
TYPE MyRecordType IS RECORD
(ID MyTable.ID%TYPE
,FIELD1 MyTable.FIELD1%TYPE
,FIELD2 MyTable.FIELD2%TYPE
,FIELD3 MyTable.FIELD3%TYPE
,ANOTHERFIELD VARCHAR2(80)
);
TYPE MyTableType IS TABLE OF MyRecordType INDEX BY BINARY_INTEGER;
There is a procedure (lets say MyProcedure), that is using an object of this table type as input/output. I want to run the procedure and see the results (how the table is filled). So I am thinking I will select the results from the table:
declare
IO_table MyPackage.MyTableType;
begin
MyPackage.MyProcedure (IO_table
,parameter1
,parameter2
,parameter3);
select * from IO_table;
end;
I get the message:
Table or view does not exist (for IO_table). If I remove the select line, the procedure runs successfully, but I cannot see its results. How can I see the contents of IO_table after I call the procedure?
You cannot see the results for a PL/SQL table by using Select * from IO_table
You will need to loop through the collection in the annonymous block.
do something like, given in pseudo code below...
declare
IO_table MyPackage.MyTableType;
l_index BINARY_INTEGER;
begin
MyPackage.MyProcedure (IO_table
,parameter1
,parameter2
,parameter3);
l_index := IO_table.first;
While l_index is not null
loop
dbms_output.put_line (IO_table(l_index).id);
.
.
.
.
l_index :=IO_table.next(l_index_id);
end loop;
end;
You have to do it like this:
select * from TABLE(IO_table);
and, of course you missed the INTO or BULK COLLECT INTO clause
1) You can not use associated arrays in SELECT statement, Just nested tables or varrays declared globally.
2) You should use TABLE() expression in SELECT statement
3) You can't simply use SELECT in PL/SQL code - cursor FOR LOOP or REF CURSOR or BULK COLLECT INTO or INTO must be used.
4) The last but not least - please study the manual:
http://docs.oracle.com/cd/B28359_01/appdev.111/b28371/adobjcol.htm#ADOBJ00204
Just an example:
SQL> create type t_obj as object( id int, name varchar2(10));
2 /
SQL> create type t_obj_tab as table of t_obj;
2 /
SQL> var rc refcursor
SQL> declare
2 t_var t_obj_tab := t_obj_tab();
3 begin
4 t_var.extend(2);
5 t_var(1) := t_obj(1,'A');
6 t_var(2) := t_obj(2,'B');
7 open :rc for select * from table(t_var);
8 end;
9 /
SQL> print rc
ID NAME
---------- ----------
1 A
2 B
How to use array( Varray) in store procedure. Actually,i have make a stored procedure from which i retrieve a list of elements.
For example:
create or replace procedure GetTargetFields ( fileformat in varchar2,
filefields out Varray(4) )
IS
BEGIN
SELECT id
INTO filefields
FROM tablename;
END;
use BULK COLLECT INTO:
SQL> CREATE OR REPLACE TYPE vrray_4 AS VARRAY(4) OF VARCHAR2(10);
2 /
Type created
SQL> CREATE OR REPLACE PROCEDURE GetTargetFields(fileformat IN VARCHAR2,
2 filefields OUT vrray_4) IS
3 BEGIN
4 SELECT dummy BULK COLLECT INTO filefields FROM dual;
5 END;
6 /
Procedure created
SQL> DECLARE
2 x vrray_4;
3 BEGIN
4 GetTargetFields(NULL, x);
5 END;
6 /
PL/SQL procedure successfully completed
Also make sure that your query doesn't return more than 4 rows (for a VARRAY(4)) or you will run into ORA-22165
Niraj. You should use the principles Vincent provided, but I suggest you use nested table type instead of varray in case you don't need exactly varray type in your logic. This will save you from ORA-22165 error if the query returns more then 4 rows - nested tabled will be automatically expanded to the size needed. You define nested table type as follows:
declare
type TStrTab is table of varchar2(10);
fStrTab TStrTab := TStrTab();
begin
select ... bulk collect into fStrTab from...
end;
More information about PL/SQL collection types can be found in official Oracle PL-SQL User's Guide and Reference Chapter 5.
Two things:
You need to declare a named type -- you can't use VARRAY directly in a parameter declaration. (Unless this has changed in 11g.)
You need to use BULK COLLECT to use a single query to populate a collection.
Example:
CREATE TYPE fieldlist AS VARRAY(4) OF NUMBER;
CREATE PROCEDURE GetTargetFields( filefields OUT fieldlist )
AS
BEGIN
SELECT id BULK COLLECT INTO filefields FROM tablename;
END;