Executing stored procedure based on table column value - sql

Question

I am trying to return result from table based on value returned from another table column.
I am getting error when no data is found in user_config table. I want else part to execute instead.
CREATE OR REPLACE PROCEDURE valuefinders (
in_soeid IN VARCHAR2,
out_cursor OUT SYS_REFCURSOR
) AS
group1 VARCHAR2(128 BYTE) := 'n';
BEGIN
SELECT
admin
INTO group1
FROM
user_config
WHERE
soeid = in_soeid;
IF ( group1 = 'y' ) THEN
OPEN out_cursor FOR SELECT
*
FROM
user_profile;
ELSE
OPEN out_cursor FOR SELECT
*
FROM
user_request;
END IF;
END valuefinders;```

Answer 1

You can also nest exceptions in your code itself and take advantage of them.
This example shows that when the query on user_config raises a NO_DATA_FOUND, the variable group1 is set to 'n' and the else block will be executed:
CREATE OR REPLACE PROCEDURE valuefinders (
in_soeid IN VARCHAR2,
out_cursor OUT SYS_REFCURSOR
) AS
group1 VARCHAR2(128 BYTE) := 'n';
BEGIN
BEGIN
SELECT
admin
INTO group1
FROM
user_config
WHERE
soeid = in_soeid;
EXCEPTION WHEN NO_DATA_FOUND THEN
group1 := 'n';
END;
IF ( group1 = 'y' ) THEN
OPEN out_cursor FOR SELECT
*
FROM
user_profile;
ELSE
OPEN out_cursor FOR SELECT
*
FROM
user_request;
END IF;
END valuefinders;

Answer 2

Handle the exception, somehow. The simplest option is to do nothing:
CREATE OR REPLACE PROCEDURE valuefinders (in_soeid IN VARCHAR2,
out_cursor OUT SYS_REFCURSOR)
AS
group1 VARCHAR2 (128 BYTE) := 'n';
BEGIN
SELECT admin
INTO group1
FROM user_config
WHERE soeid = in_soeid;
IF (group1 = 'y')
THEN
OPEN out_cursor FOR SELECT * FROM user_profile;
ELSE
OPEN out_cursor FOR SELECT * FROM user_request;
END IF;
EXCEPTION --> here
WHEN NO_DATA_FOUND
THEN
NULL;
END valuefinders;
If you want to do something else, then just do it:
EXCEPTION
WHEN NO_DATA_FOUND
THEN
OPEN out_cursor FOR SELECT * FROM user_request;