MySql: Stored procedure syntax error due to Exception command - mysql

CREATE or replace procedure `isEven`(IN num int,OUT result varchar(6)) is
BEGIN
set result=(select IF(MOD(num,2)=0,"Even","Odd"));
EXCEPTION WHEN OTHERS THEN
DBMS_OUTPUT.PUT_LINE ("Error!");
END isEven;
I am trying to make a stored procedure but there is an error in my code I can't understand what is the issue in this code.
Can anyone let me the correct syntax of the exception?

Related

SQL 1064 in Procedures

Hey I'm leraning right now for my study Exams.
I have a Problem with Procedures and Functions.
CREATE PROCEDURE testProc()
BEGIN
DECLARE testNR INT;
END
This is my testCode but every Procedure and every Function gives me this Failure:
Error: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '' at line 3
SQLState: 42000
ErrorCode: 1064
Error occurred in:
CREATE PROCEDURE testProc()
BEGIN
DECLARE testNR INT
Is there something that I do wrong or do I have Problems with my IDE SQuirrel?
You need to change delimiters while creating the procedure; otherwise ; is seen as the end of the CREATE PROCEDURE statement.
As explained in the docs, you need to
use[] the mysql client delimiter command to change the statement delimiter from ; to // while the procedure is being defined. This enables the ; delimiter used in the procedure body to be passed through to the server rather than being interpreted by mysql itself. See Section 23.1, “Defining Stored Programs”.
It doesn’t have to be //; another common choice is $$.
In your example, this might look like
DELIMITER $$
CREATE PROCEDURE testProc()
BEGIN
DECLARE testNR INT;
END
$$
DELIMITER ;

Sybase stored procedure exception handling

I am new to sybase. After studying a bit I came to know following is the correct way to handle error/exceptions in sybase stored procedure.
CREATE PROCEDURE dbo.sp_testErrorHandling (#age varchar(20))
AS
BEGIN
DECLARE #myerr int
BEGIN TRANSACTION mytrans
DELETE FROM TestStoredProc where Name='Z'
IF ##error<>0 BEGIN SELECT #myerr=##error GOTO failed END
DECLARE #result int
EXECUTE #result = 5/0 /* throws an exception */
IF ##error<>0 BEGIN SELECT #myerr=##error GOTO failed END
COMMIT TRANSACTION mytrans
RETURN 0
failed:
ROLLBACK TRANSACTION mytrans
return #myerr
END
I thought, this stored procedure would return the error code correspondin to exception devision by zero. But actually it is throwing exception. Please help me to undestand the behaviour.
Regards,
Anirban
Anirban
To be able to capture / handle 'divide by zero' errors better, you will have to set appropriate values to the arithignore arith_overflow system option in the Sybase server. There is some good documentation in the Sybase online manual at :
http://infocenter.sybase.com/help/index.jsp?topic=/com.sybase.infocenter.dc32300.1550/html/sqlug/X47118.htm

How do I handle errors in a basic MySQL stored procedure?

Let's say I have a stored procedure:
DELIMITER $$
CREATE DEFINER=`root`#`%` PROCEDURE `SetupBlocks`(
IN myBlock VARCHAR(20)
)
BEGIN
INSERT INTO blocks (block)
VALUE (myBlock);
END
What if I made a mistake in my code and DB setup, and the column block only allows for 15 characters but someone using my application has been able to get 20 characters into myBlock? I would get an error similar to this for this example:
Error Code: 1406. Data too long for column 'block'
Is there some way to handle any error (not just this one) and then report it into a table called BlockSprocErrors for monitoring within MySQL and within the stored procedure itself?
Just looking for a very basic example by modifying my procedure above.
Here is what I ended up doing:
DECLARE EXIT HANDLER FOR SQLEXCEPTION
BEGIN
GET DIAGNOSTICS condition 1
#SQLState = RETURNED_SQLSTATE, #SQLMessage = MESSAGE_TEXT;
SELECT CONCAT('Database error occurred, state - ',#SQLState, '; error msg - ', #SQLMessage) INTO #errorString;
CALL Collectors_Errors
(#errorString,
'Collectors_InsertAlbum',
barcodeApp,
usernameApp);
END;

How to convert oracle procedure into mysql with exception handling

Hi all,
Am new to mysql.Actually am oracle developer now am converting some procedure from oracle to mysql.In those changes I have doubt in Mysql.
In Oracle:-
Create procudure test_proc(p_id in varchar2,
p_error_code out number,
p_error_msg out varchar2) is
begin
insert into test_1(a) values(p_id);
commit;
p_error_code:=0;
exception when others then
p_error_code:=1;
p_error_msg:=substr(sqlerrm,1,150);
rollback;
return;
end;
I need same type of procedure in mysql or sample procedure how to handle exception and show it error as output variable like sqlerrm in oracle.
Thanks and regards,
vinoth
You can use EXIT and CONTINUE Handler. But you cant get clear error details as you get in ORACLE.

Multiple-step operation generated errors. Check each status value

Need some help for this error message that appears on delphi 7
First, i will describe some script:
On mySQL procedure script:
CREATE PROCEDURE ActualStok()
NOT DETERMINISTIC
CONTAINS SQL
SQL SECURITY DEFINER
COMMENT ''
BEGIN
SELECT B.KD_BRG, B.NAMA_BRG, B.UKURAN, B.SATUAN,
(B.JUMLAH_BRG-(SELECT IFNULL(SUM(D.JUMLAH_PAKAI_BRG),0)
FROM DETAIL_PAKAI_BRG D
WHERE (D.STATUS_AMBIL='0') AND (D.KD_BRG=B.KD_BRG) AND (D.UKURAN=B.UKURAN)
AND (D.SATUAN=B.SATUAN))),
B.KETERANGAN_BRG
FROM BARANG B;
END;
Then i check that procedure --> CALL ActualStok();
And it's work. mySQL show me the expected result, and fine. There is no error.
So on delphi program, i try to execute this script:
procedure TFrmPersediaan.Button1Click(Sender: TObject);
begin
FrmDtm.ADOQBarang.Close;
FrmDtm.ADOQBarang.SQL.Clear;
FrmDtm.ADOQBarang.SQL.Add('CALL ActualStok()');
FrmDtm.ADOQBarang.Open;
end;
Delphi shows me a error message "Multiple-step operation generated errors. Check each status value."
Please somebody to help me to solve this problem.
Thank you for any participant.
This might due to unsupported date values by ADO. In my case the error was caused by date value 01-01-0020 in my Oracle database, which isn't recognized by ADO.