I have created a type inside a package and declared a function as below.
type backupStatus_t is table of d_backupstatus%ROWTYPE;
function getLatestBackupInfo return backupStatus_t;
Now, inside the package body, I have defined the function as below.
function getLatestBackupInfo RETURN backupStatus_t as
v_backupStatus backupStatus_t;
begin
select * bulk collect into v_backupStatus from d_backupstatus;
return v_backupStatus;
end;
Package compiles successfully.
When I try to call this function, I am getting "invalid datatype".
Can anyone help??
Try to create your "backupStatus_t" type outside of your package, like :
CREATE OR REPLACE TYPE backupStatus_t AS TABLE OF d_backupstatus%ROWTYPE;
Related
In order to create my own aggregate function, I must :
define an object that have 4 methods.
STATIC FUNCTION ODCIAggregateInitialize( ... ) ...,
MEMBER FUNCTION ODCIAggregateIterate(...) ... ,
MEMBER FUNCTION ODCIAggregateMerge(...) ...,
MEMBER FUNCTION ODCIAggregateTerminate(...)
That means implementing an interface with these 4 functions.
I can now define my aggregate function:
function f (argument integer) return integer using myobject.
to create a polymorphic table function,
I must :
implement a package that implement the funciton describe.
FUNCTION describe (tab IN OUT DBMS_TF.table_t,col IN dbms_tf.columns_t) RETURN DBMS_TF.describe_t;
That means implementing an interface with this function
open,fetch_rows,close are not compulsory.
I can now define a polymorphic table functoin like that
FUNCTION my_ptf(tab IN TABLE,col IN COLUMNS) RETURN TABLE PIPELINED ROW POLYMORPHIC USING my package;
I would like to know if there is other interfaces that I can implement and to do what?
I'm searching a list of these interfaces.
I have a stored procedure that returns a JSON instead of usual table. How do I call it using spring JPA? When I called like normal stored procedure it says
SQL Error: 0, SQLState: S1093
Parameter out was not defined for stored procedure
the way I called the stored procedure is
public interface ITransactionserviceJPA extends JpaRepository<CategoryEntity, Integer>{
#Procedure(procedureName = "getApprovalRequests")
String getApprovalRequests(String EmpId);
}
I checked the stored procedure. It did not have any out parameter. But it returns JSON object so I cannot use use void instead of String. But when I use String as return type it gives error. I searched for few hours but I couldn't find any solution. Idk even this is possible or not.
I have the following stored procedure:
ALTER procedure [dbo].[spx_kasir_verifikator_GetData_web]
#id_verifikator int
as
begin
SELECT * FROM tb_kasir_set_verifikator
WHERE tb_kasir_set_verifikator.id_verifikator = id_verifikator;
end
Controller:
public function show($id_verifikator)
{
$setverifikator = DB::select("exec spx_kasir_verifikator_GetData_web ?",[$id_verifikator]);
dd($setverifikator);
}
And I'm trying to call this procedure in Laravel 8, I need to display just one id or by id_verifikator but it's always showed all data. How I solve this?
It's returning everything as you are using select * which tells the database that you want the entire row. If you wish to only get a specific column then you need to change that to select id_verifikator.
A bit off-topic but I would suggest that you just run this query in Laravel instead of having a procedure, especially as this is such a basic query. The below links can help you get started.
https://laravel.com/docs/8.x/queries
https://laravel.com/docs/8.x/eloquent
I have the following (private) PL/SQL function (inside PACKAGE) returning the previous month in 'YYYYMM' format:
FUNCTION GET_PREV_MONTH RETURN VARCHAR2 IS
BEGIN
RETURN TO_CHAR(ADD_MONTHS(SYSDATE,-1),'YYYYMM');
END GET_PREV_MONTH;
I need to compare if records are from previous month in several my queries so I wanted to make private function returning previous month. Why I cannot use this return value from GET_PREV_MONTH() function in WHERE clause of my other SQL queries like:
UPDATE mytable t SET t.col=1
WHERE TO_CHAR(t.created,'YYYYMM')=GET_PREV_MONTH();
Oracle says PLS_00231: function 'GET_PREV_MONTH' may not be used in SQL.
If I create this, this works!
UPDATE mytable t SET t.col=1
WHERE TO_CHAR(t.created,'YYYYMM')=TO_CHAR(ADD_MONTHS(SYSDATE,-1),'YYYYMM');
I wanted to make private function returning previous month. Why I cannot use this return value from GET_PREV_MONTH() function in WHERE clause of my other SQL queries
It is a private function - you cannot reference it outside the package.
If you want to use it in SQL then declare it in the package specification so that it is public.
This is private function of this package! This function is used in procedures from the same package. It is not referenced outside this package.
It CANNOT be used in the SQL context if it is not a public function; regardless of whether the SQL is being called from inside or outside the same package.
All.
We have an Oracle package that returns a ref cursor:
CREATE OR REPLACE PACKAGE BODY sandbox AS
FUNCTION my_function (text VARCHAR2) RETURN result_cv IS result result_cv;
BEGIN
OPEN result FOR SELECT MLS_SID FROM MLS;
RETURN result;
END;
END sandbox;
I am calling the function with the following scala code:
lazy val database = Database.forDataSource(DB.getDataSource())
database withSession {
val x = sql"select sandbox.my_function($text) from DUAL".as[(Int)]
x foreach (x => println(x))
Ok(String.valueOf(x.first))
}
The code fails with the following error:
[SQLException: Invalid column type: getInt not implemented for class oracle.jdbc.driver.T4CResultSetAccessor]
The SQL statement works when I just use the select statement that is in the function (SELECT MLS_SID FROM MLS;), but when I open it as a ref cursor and return the ref cursor it fails. I looked at the T4CResultSetAccessor and it only has one method getBytes().
Can anyone offer suggestions on how to make this work using the Oracle function call and ref cursors? Thanks in advance.
-patrick
Frome Typesafe:
Slick doesn’t support OUT parameters at the moment (which you would
need to properly return a ref cursor). If the cursor is all you need
to return from your stored proc, I suggest to use the method
recommended in the SO post: Lift the result set to the top level with
TABLE(). Does this work for your use case?
So our solution was to do this:
SELECT * FROM TABLE(my_function('text'))
We got an error, but that was Lucas' and Typesafe's suggestion