Help on Execute Immediate Dynamic Sql

Question

Hi all
when i run the following Pl/SQL,nothing is happening
I want to pass array to following procedure
DECLARE
SQL_STMT      VARCHAR2(1000);
BEGIN
SQL_STMT  := 'Select '|| '''populate_table_test(''' || '|| chr(39)||id_name||chr(39)||' ||''','''||'|| chr(39)||attribute1||chr(39)||' ||''','''||'|| chr(39)||attribute2||chr(39)||' ||''');'''||' from table_test1';
dbms_output.put_line(sql_stmt);
execute immediate sql_stmt;
Exception when others then
dbms_output.put_line(sqlerrm);
end;
SQL> ed
Wrote file afiedt.buf
  1  Select 'populate_table_test('|| chr(39)||id_name||chr(39)||','||
  2  chr(39)||attribute1||chr(39)||','|| chr(39)||attribute2||chr(39)||');' from
  3* table_test
SQL> /
'POPULATE_TABLE_TEST('||CHR(39)||ID_NAME||CHR(39)||','||CHR(
populate_table_test('AAA','AA','AA');
populate_table_test('AAA','AA','AA');
CREATE
  TABLE TABLE_TEST1
    "ID_NO"      NUMBER(10,0)     ,
    "ID_NAME"    VARCHAR2(10 BYTE),
    "ATTRIBUTE1" VARCHAR2(10 BYTE),
    "ATTRIBUTE2" VARCHAR2(10 BYTE)
Insert into TABLE_TEST1 (ID_NO,ID_NAME,ATTRIBUTE1,ATTRIBUTE2) values (null,'AAA','AA','AA');
Insert into TABLE_TEST1 (ID_NO,ID_NAME,ATTRIBUTE1,ATTRIBUTE2) values (null,'AAA','AA','AA');
commit;
CREATE TABLE TABLE_TEST
(ID_NO NUMBER(10) ,
id_NAME VARCHAR2(10) ,
ATTRIBUTE1 VARCHAR2(10),
ATTRIBUTE2 VARCHAR2(10)
select * from "TABLE_TEST";
CREATE OR REPLACE TYPE T_TYPE IS OBJECT (
id_NAME VARCHAR2(10),
ATTRIBUTE1 VARCHAR2(10),
ATTRIBUTE2 VARCHAR2(10)
Create or replace  type TB_T_TYPE as varray(200) of  T_TYPE ;
CREATE OR REPLACE
PROCEDURE POPULATE_TABLE_TEST (EXAMPLE IN TB_T_TYPE) AS
begin
FOR I IN 1..EXAMPLE.COUNT LOOP
DBMS_OUTPUT.PUT_LINE(TREAT(EXAMPLE(I) AS T_TYPE).ID_NAME);
DBMS_OUTPUT.PUT_LINE(TREAT(EXAMPLE(I) AS T_TYPE).ATTRIBUTE1);
DBMS_OUtPUT.PUT_LINE(TREAT(EXAMPLE(I) AS T_TYPE).ATTRIBUTE2);
insert into TABLE_TEST(id_name,attribute1,attribute2)
values (treat(example(i) as T_TYPE).id_NAME,
treat(example(i) as T_TYPE).ATTRIBUTE1,
treat(example(i) as T_TYPE).ATTRIBUTE2
end loop;
end; Select 'populate_table_test('|| chr(39)||id_name||chr(39)||','||
chr(39)||attribute1||chr(39)||','|| chr(39)||attribute2||chr(39)||');' from
table_test
Edited by: user1849 on Nov 30, 2011 12:40 PM
Edited by: user1849 on Nov 30, 2011 1:18 PM

Answer 1

user1849 wrote:
Hi all
when i run the following Pl/SQL,nothing is happeningRemember to issue the SQL*Plus command
SET  SERVEROUTPUT  ONbefore running it; otherwise, you won't see the output from dbms_output.
>
I want to pass array to following procedureIs this a procedure or an anonymous PL/SQL block?
If it's a procedure, post the entire procedure, starting with CREATE [OR REPLACE] PROCEDURE...
Never write, let alone post, unformatted code. Indent the code to show the scope of BEGIN, LOOP, etc.
DECLARE
SQL_STMT      VARCHAR2(1000);
BEGIN
SQL_STMT  := 'Select '|| '''populate_table_test(''' || '|| chr(39)||id_name||chr(39)||' ||''','''||'|| chr(39)||attribute1||chr(39)||' ||''','''||'|| chr(39)||attribute2||chr(39)||' ||''');'''||' from table_test1';
dbms_output.put_line(sql_stmt);
execute immediate sql_stmt;
Exception when others then
dbms_output.put_line(sqlerrm);
end;
/Only use an EXCEPTION handler when you can improve on the default error handling. The default is to print an error message, so there's no point in you explicitly doing the same.
Why do you need dynamic SQL? Post the output results you want to get from the sample data you posted.
Given that you do need dynamic SQL, why can't you use bind variables, rather than including the values as literals?
Given that you have to use literals, use Q-notation for strings that include single-quote characters.
http://docs.oracle.com/cd/B28359_01/server.111/b28286/sql_elements003.htm#sthref337
For example:
...     SQL_STMT  := Q{'Select  populate_table_test ('}'
          || id_name
          || Q'{','}'
          || attribute1
          || Q'{','}'
SQL> ed
Wrote file afiedt.buf
1  Select 'populate_table_test('|| chr(39)||id_name||chr(39)||','||
2  chr(39)||attribute1||chr(39)||','|| chr(39)||attribute2||chr(39)||');' from
3* table_test
SQL> /
'POPULATE_TABLE_TEST('||CHR(39)||ID_NAME||CHR(39)||','||CHR(
populate_table_test('AAA','AA','AA');
populate_table_test('AAA','AA','AA');
CREATE
TABLE TABLE_TEST1
"ID_NO"      NUMBER(10,0)     ,
"ID_NAME"    VARCHAR2(10 BYTE),
"ATTRIBUTE1" VARCHAR2(10 BYTE),
"ATTRIBUTE2" VARCHAR2(10 BYTE)
Insert into TABLE_TEST1 (ID_NO,ID_NAME,ATTRIBUTE1,ATTRIBUTE2) values (null,'AAA','AA','AA');
Insert into TABLE_TEST1 (ID_NO,ID_NAME,ATTRIBUTE1,ATTRIBUTE2) values (null,'AAA','AA','AA');
commit;
Thanks for posting the CREATE TABLE and INSERT statements; that's very helpful.
Is that the best sample data for testing? Wouldn't it be better to have at least one row that was not the same as all the others?
CREATE TABLE TABLE_TEST
(ID_NO NUMBER(10) ,
id_NAME VARCHAR2(10) ,
ATTRIBUTE1 VARCHAR2(10),
ATTRIBUTE2 VARCHAR2(10)
select * from "TABLE_TEST";
CREATE OR REPLACE TYPE T_TYPE IS OBJECT (
id_NAME VARCHAR2(10),
ATTRIBUTE1 VARCHAR2(10),
ATTRIBUTE2 VARCHAR2(10)
Create or replace  type TB_T_TYPE as varray(200) of  T_TYPE ;
CREATE OR REPLACE
PROCEDURE POPULATE_TABLE_TEST (EXAMPLE IN TB_T_TYPE) AS
begin
FOR I IN 1..EXAMPLE.COUNT LOOP
DBMS_OUTPUT.PUT_LINE(TREAT(EXAMPLE(I) AS T_TYPE).ID_NAME);
DBMS_OUTPUT.PUT_LINE(TREAT(EXAMPLE(I) AS T_TYPE).ATTRIBUTE1);
DBMS_OUtPUT.PUT_LINE(TREAT(EXAMPLE(I) AS T_TYPE).ATTRIBUTE2);
insert into TABLE_TEST(id_name,attribute1,attribute2)
values (l_t_seq(i),
treat(example(i) as T_TYPE).id_NAME,
treat(example(i) as T_TYPE).ATTRIBUTE1,
treat(example(i) as T_TYPE).ATTRIBUTE2
end loop;
end; You're trying to INSERT 4 values into 3 columns. Did you mean to say "insert into TABLE_TEST( *id_no,* id_name,attribute1,attribute2)"?
What is l_t_seq? Post complete test scripts that people can run to re-create the problem and test their ideas.