How to test different Select into a PL/SQL block?

Hello

I'm relatively new to PL/SQL and I'm doing several int selects only one PL/SQL block. I am faced with the fact that if a single select statement returns no data, I have to go to the when exception DATA_NOT_FOUND.

Or, I would test selects different.

In an authentication script, I'm looking for a table for a USER ID (USERID) and an ID application, to check if a user is registered under this username for this APPLICATION.

There are different possibilities: 4 possibilities:
-Existing USER name or do not exist and
-Aplication ID found or not found for this particular USER ID.

I would test teas 4 possibilities to obtain the status of this user do regardin this application.

The problem is that if a select returns no rows, I'll not found exception data.
In the example below you can see that if no line is returned, with the exception

DECLARE
P_USERID VARCHAR2(400) DEFAULT NULL;
P_APPLICATION_ID NUMBER DEFAULT NULL;
P_REGISTERED VARCHAR2(400) DEFAULT NULL;
BEGIN
SELECT DISTINCT(USERID) INTO P_USERID FROM ACL_EMPLOYEES
WHERE  USERID = :P39_USERID AND APPLICATION_ID = :APP_ID ;
:P39_TYPE_UTILISATEUR := 'USER_REGISTERED';
EXCEPTION
WHEN NO_DATA_FOUND THEN
:P39_TYPE_UTILISATEUR := 'USER_NOT_FOUND';
END;

I would like to first of all make this statement:

SELECT DISTINCT(USERID) INTO P_USERID FROM ACL_EMPLOYEES
WHERE  USERID = :P39_USERID

Do this if the user is found:

SELECT DISTINCT(USERID) INTO P_USERID FROM ACL_EMPLOYEES
WHERE  USERID = :P39_USERID AND APPLICATION_ID = :APP_ID ;

etc...

Basically, I don't want to go to the not found exception before you have tested the 4 possibilities.

Do you have a suggestion?

Thank you very much for your help!

Christian

If you I had to check several conditions, this is how I would do:

DECLARE
  P_USERID         VARCHAR2(400) DEFAULT NULL;
  P_APPLICATION_ID NUMBER DEFAULT NULL;
  P_REGISTERED     VARCHAR2(400) DEFAULT NULL;
BEGIN
 SELECT USERID
     , MAX(DECODE(application_id, :APP_ID, :APP_ID)) app_id_valid
  INTO P_USERID
     , P_APPLICATION_ID
  FROM ACL_EMPLOYEES
 WHERE USERID = :P39_USERID
 GROUP BY USERID

 IF P_APPLICATION_ID IS NULL
 THEN
   :P39_TYPE_UTILISATEUR := 'NOT REGISTERED TO APPLICATION_ID';
 ELSE
   :P39_TYPE_UTILISATEUR := 'USER_REGISTERED';
 END IF;
EXCEPTION
  WHEN NO_DATA_FOUND
  THEN
    :P39_TYPE_UTILISATEUR := 'USER_NOT_FOUND';
END;
/

not tested

Tags: Database

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selection of the results aggregated into a PL/SQL block gives me ORA-00934

Hello

I have a simple table of objects on the map that were inclusive. That is to say:

CREATE TABLE tbl (
  id NUMBER(11,0), -- Id of this record
  parentId NUMBER(11,0), -- Id from some parent table
  bb_sw_lat FLOAT, -- SW bounding box corner - Latitude
  bb_sw_lng FLOAT, -- SW bounding box corner - Longitude
  bb_ne_lat FLOAT, -- NE bounding box corner - Latitude
  bb_ne_lng FLOAT -- NE bounding box corner - Longitude
);

INSERT INTO tbl VALUES (1, 1, 10, 10, 20, 20);
INSERT INTO tbl values (2, 1, 5, 5, 35, 35);
INSERT INTO tbl values (3, 1, -5, -20, 0, 0);
INSERT INTO tbl VALUES (4, 2, 9, 9, 10, 10);
INSERT INTO tbl values (5, 2, 1, 1, 1, 1);

I can query the number of entries for a parent entity and the use of aggregate functions calculate the framework encompassing total for the parent entity:

SELECT
  count(*),
  NVL(MIN(bb_sw_lat),0),
  NVL(MIN(bb_sw_lng),0),
  NVL(MAX(bb_ne_lat),0),
  NVL(MAX(bb_ne_lng),0)
FROM tbl
WHERE parentId=1;

but the same select cannot be put to the PL/SQL block:

DECLARE
  cnt NUMBER;
  sw_lat FLOAT; sw_lng FLOAT; ne_lat FLOAT; ne_lng FLOAT;
BEGIN
  SELECT
    count(*) INTO cnt,
    NVL(MIN(bb_sw_lat),0) INTO sw_lat,    -- ORA-00934: group function is not allowed here
    NVL(MIN(bb_sw_lng),0) INTO sw_lng,
    NVL(MAX(bb_ne_lat),0) INTO ne_lat,
    NVL(MAX(bb_ne_lng),0) INTO ne_lng
  FROM tbl
  WHERE parentId=1;
END;

can someone please explain to me why and what to do with it? Examples are executable as they are, it should be fairly easy to reproduce.

Thank you very much!

Kuba

Published by: user3620664 on May 14, 2009 02:14 added formatting

without testing, just an IN

DECLARE
  cnt NUMBER;
  sw_lat FLOAT; sw_lng FLOAT; ne_lat FLOAT; ne_lng FLOAT;
BEGIN
  SELECT
    count(*),
    NVL(MIN(bb_sw_lat),0),
    NVL(MIN(bb_sw_lng),0),
    NVL(MAX(bb_ne_lat),0),
    NVL(MAX(bb_ne_lng),0)
 INTO cnt,
  sw_lat,
  sw_lng,
  ne_lat,
  ne_lng
   FROM tbl
  WHERE parentId=1;
END;

Published by: Alex Nuijten on May 14, 2009 11:19

How to truncate the table in a pl/sql block
Hello guys, I'm trying to truncate a table that includes data using a pl/sql block, so if the table has even a single row then the truncate should run. to do this, I wrote the following code

declare
number num.
Start
Select count (*) in the num from table_name;
If num > 0 then
truncate table table_name;
end if;
end;

Now, when I execute the pl/sql block, I get the following error.

PLS-00103: encountered the symbol "TABLE" when the expected in the following way:

When I run the truncate without pl/sql command, it runs very well.

Can someone please where I'm wrong.

Thank you

Published by: 969224 on April 23, 2013 08:08
969224 wrote:
Hello guys, I'm trying to truncate a table that includes data using a pl/sql block, so if the table has even a single row then the truncate should run. to do this, I wrote the following code

declare
number num.
Start
Select count (*) in the num from table_name;
If num > 0 then
truncate table table_name;
end if;
end;

Now, when I execute the pl/sql block, I get the following error.

PLS-00103: encountered the symbol "TABLE" when the expected in the following way:

When I run the truncate without pl/sql command, it runs very well.

Can someone please where I'm wrong.

Thank you

Published by: 969224 on April 23, 2013 08:08

DDL is not allowed directly within PL/SQL procedures.

You must (ab) use EXECUTE IMMEDIATE issuing the DDL

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HI T.Bux and welcome to the forum.

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The pl/sql valid and commits OK in TOAD.

I ran the sql in the EBS, and took the path of the workflow looks like that function returned a value of false.

I pass to the function a document_id.

I was wondering how I might test the output of the function from TOAD?

I tried:

select XCCC_PO_APPROVALLIST_S1.does_cpa_exist(1017934) from dual;

But get errors:

ORA-06552: PL/SQL: Statement ignored
ORA-06553: PLS-382: expression is of wrong type

I do probably bad 101 things here, but I would still ask thinking and risk of being shouted at.

Any advice appreciated,

Thank you

I was wondering how I might test the output of the function from TOAD?

Try

begin
  if xccc_po_approvallist_s1.does_cpa_exist (1017934)
  then
    dbms_output.put_line ('True');
  else
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  end if;
end;
/

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< @ if (odiRef.getOption ("USE_PUBADMIN_PARAM_TABLE").equals("1")) {@ >}
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EH_SEND_MAIL_NOTIFICATION VARCHAR2 (4000);
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The following code fails with an exception too many lines. How can I modify statement Select Into the procedure to use a cursor?

CREATE OR REPLACE PROCEDURE Track_Asset(
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   missing_table_name  OUT VARCHAR2) 
IS
   ln_business_date NUMBER;
    incorrectdateformat EXCEPTION;
BEGIN
   IF business_date < 0 
   THEN
      RAISE incorrectdateformat;
   ELSE
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            FROM dpca
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...

cursor c_table_names is
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...
...
begin
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   end loop;
   missing_table_name  := rtim(missing_table_name , ',');
...
...
end ;

HTH

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end;
/
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