CREATE OR REPLACE PROCEDURE NG_ZAPIN_FTRREPORT
(
WI_NAME IN VARCHAR2
)
AS
OUT_RESULT VARCHAR2(10);
BEGIN
OUT_RESULT:= 'SELECT * FROM NG_ZAPIN_FTRCHECKLIST WHERE WI_NAME := ''||WI_NAME||''';
END;
This is a sample procedure written by me.
Help me how to run this procedure with passing paramter and getting the query output
EXEC NG_ZAPIN_FTRREPORT('wi_name');
where wi_name is the value of WI_NAME that you want, although I'm pretty sure that your procedure isn't going to work in the way that you expect (but that is a different question).
Related
I want to create a procedure without parameters (In SQL DEVELOPER) but I am not sure how to do it, I have tried it in the following way and it sends me an error in "Num1 NUMBER";
create or replace package PK_MAC as
PROCEDURE PR_PRUEBAS
IS
Num1 NUMBER;
BEGIN
Num1 := 2;
end;
end;
You're trying to create a procedure or a package, with a procedure?
Here is a working example of what you're doing, as a package.
Your package will have two parts, a SPEC and a BODY.
The SPEC will publicly share the definition of the procedure and the variable, NUM1.
The BODY will define what the procedure actually does. Since NUM1 is defined already in the context of the package in the spec, I can use it in my procedure in the body.
create or replace package PK_MAC as
num1 integer;
PROCEDURE PR_PRUEBAS;
end;
/
create or replace package body PK_MAC IS
procedure pr_pruebas is
BEGIN
Num1 := 2;
end pr_pruebas;
end PK_MAC;
/
I am trying to call a variable script name. I need it as a variable so that i can replace it with a parameter. This code below somehow dose not work.
DECLARE
mypath CHAR(30);
BEGIN
mypath := '&1';
#mypath
END;
Any help please!
PL/SQL scripts is a subset of Sqlplus scripts. In other words you cannot run PROMPT hello from inside of PL/SQL block.
Although there's a way to run pure PL/SQL script stored in a file from PL/SQL block, I don't recommend it, because with a little thinking you're able to find more clear solution.
Anyway here's that dirty hack:
my/lovely/little_script_1.sql
BEGIN
dbms_output.put_line('hello from little_script_1');
END;
--------------------
my/lovely/little_script_2.sql
BEGIN
dbms_output.put_line('hello from little_script_2');
END;
--------------------
#main.sql
DECLARE
v_file_contents varchar2(32767) := q'[
#&1
]';
BEGIN
EXECUTE IMMEDIATE v_file_contents
END;
/
--------------------
#run.sql
set serveroutput on
#main.sql my/lovely/little_script_1.sql
#main.sql my/lovely/little_script_2.sql
--------------------
sqlplus user/pass#DB #run.sql
Notice, that little_script* files are pure PL/SQL, particularly they lack the / symbol in the end.
It's important to understand that construct #file_name.sql inlines file contents into current script if only # is the first non-space character in the line regardless of where this construct is placed. Also it takes place even inside PL/SQL - it's an undocumented feature (or a bug which never will be fixed).
So an implicit result of substitution #main.sql my/lovely/little_script_1.sql will be:
DECLARE
v_file_contents varchar2(32767) := q'[
BEGIN
dbms_output.put_line('hello from little_script_1');
END;
]';
BEGIN
EXECUTE IMMEDIATE v_file_contents
END;
Since file contents are just being inlined as is, mind handling quotes correctly.
For instance, if little_script_1.sql contains anywhere a string terminator symbols ]', then main.sql will face a syntactic error - try it yourself.
echo on
set lines 200 pages 999 trims on echo on feed on timing on time on
spool '&1'
#'&2'
spool off
spool '&1' APPEND
DECLARE
myoption CHAR(1);
BEGIN
myoption := '&Do_you_want_to_commit_y_n';
if myoption = 'y' thenQ
commit;
else
rollback;
end if;
END;
/
spool off
set echo off
exit;
Let's say I have a package spec. that stores constant values, which are extensively used in other packages (their procedures mainly) - so stuff like custom error messages, specific values, even lists like
TYPE myTableType IS TABLE OF VARCHAR2(100);
myObj mytype := NEW myTableType ('value1','value2')
I'd however now like to add a whole "dictionary" structure to it now - so a list of key-> value pairs in that package.
Seems I cannot initialise a table of records in that section, as already asked here:
https://asktom.oracle.com/pls/asktom/f?p=100:11%3A0%3A%3A%3A%3AP11_QUESTION_ID:14334298866128
and it seems a table of objects mentioned in the link is not a solution for me either. Not sure what would be a best workaround of some sort.
Any ideas ?
Given a package specification
CREATE OR REPLACE PACKAGE example IS
TYPE assoc_array_type IS TABLE OF VARCHAR2(100) INDEX BY VARCHAR2(100);
g_const_array assoc_array_type;
PROCEDURE dummy_proc (i_var NUMBER);
END example;
/
You can initialize the associate array of constants as follows
CREATE OR REPLACE PACKAGE BODY example IS
PROCEDURE dummy_proc (i_var NUMBER) IS
BEGIN
dbms_output.put_line(g_const_array('key_1'));
END dummy_proc;
BEGIN
g_const_array('key_1') := 'value_1';
g_const_array('key_2') := 'value_2';
g_const_array('key_3') := 'value_3';
END example;
/
To test, compile spec and body and then call dummy_proc, which will print value_1 to the console. Associative arrays can also be indexed by binary_integer or pls_integer for different needs.
EDIT: This second package shows that you can reference the public array and get the values from initialization in other packages.
CREATE OR REPLACE PACKAGE example_2 IS
PROCEDURE dummy_proc (i_key VARCHAR2);
END example_2;
/
CREATE OR REPLACE PACKAGE BODY example_2 IS
PROCEDURE dummy_proc (i_key VARCHAR2) IS
BEGIN
dbms_output.put_line(example.g_const_array(i_key));
END dummy_proc;
END example_2;
/
BEGIN
example_2.dummy_proc('key_1');
END;
/
When running the following code in Oracle 10g (pl/sql)
DECLARE
A NUMBER;
B NUMBER;
BEGIN:
A:=&N;
B:=&M;
IF (A>B)
DBMS_OUTPUT.PUT_LINE('THE MAXIMUM OF TWO NUMBER IS:' || TO_CHAR(A));
ELSE
DBMS_OUTPUT.PUT_LINE('THE MAXIMUM OF TWO NUMBERS IS:' || TO_CHAR(B));
END IF;
END;
I get the error 'BIND VARIABLE "A" NOT DECLARED' and I don't know why. What is causing this?
There are a couple of things wrong with your code.
The first problem is that there should be no colon after BEGIN. What you've written is being interpreted by Oracle as BEGIN :A := ..., and that should explain why you're getting an error about bind variable A.
The second problem is with the line IF (A>B). You need to add a THEN to the end.
Incidentally, you can use GREATEST(A, B) to return the larger of two numbers.
I've to work on some older EDW scripts, which I think are in PL/SQL and queries fech data from Oracle table as well. But there is some problem with them, the part which declares variables, as shown in the image gives error. I'm unable to understand why?
Below is some part of script,
VARIABLE begin_exp_date varchar2(8)
VARIABLE end_exp_date varchar2(8)
VARIABLE begin_cal_key number
Declare
begin
:begin_exp_date := 'begin_exp_date';
:end_exp_date := 'end_exp_date';
:begin_cal_key := 'begin_cal_key';
end;
These lines produce error ORA-00900: Invalid SQL statement.
Any help?
If you plug the script in SQL*Plus, it will be executed without the ORA-00900 error. I guess you received the error when it was run in Toad.
If it is indeed PL/SQL, it should be more like this
DECLARE
begin_exp_date varchar2(8);
end_exp_date varchar2(8);
begin_cal_key number;
BEGIN
begin_exp_date := 'begin_exp_date';
-- and so on
END;
You can set constant values to the variables in the DECLARE section if you want. Note that you've defined begin_cal_key as a NUMBER so cannot assign the string 'begin_cal_key'