Hi hope you guys can help.
I am trying to throw an error Message inside a Function if the Input (INT) isn't equal to length 8.
My Code:
DELIMITER $$
CREATE FUNCTION test(a INT)
RETURNS INT
BEGIN
DECLARE ret INT;
IF LENGTH(CONVERT(a, CHAR)) != 8 THEN SIGNAL SQLSTATE '4500' SET MESSAGE_TEXT = 'need to be 8!';
END IF;
IF a <= 20000000 THEN SET ret = 1;
ELSEIF a > 20000000 AND a <= 30000000 THEN SET ret = 2;
ELSE SET ret = 3;
END IF;
RETURN ret;
END;
$$
DELIMITER ;
Unfortunately when i create the Function it instantly throws the error message and doesn't wait for the condition.
So when i am trying to run the Code it says:
Error Code: 1407. Bad SQLSTATE: '4500'
How can i solve that??
DELIMITER $$
CREATE FUNCTION test(a INT)
RETURNS INT
BEGIN
DECLARE ret INT;
IF LENGTH(CONVERT(a, CHAR)) != 8 THEN SIGNAL SQLSTATE '45000' SET MESSAGE_TEXT = 'need to be 8!'; #--I had made changes at this line#
END IF;
IF a <= 20000000 THEN SET ret = 1;
ELSEIF a > 20000000 AND a <= 30000000 THEN SET ret = 2;
ELSE SET ret = 3;
END IF;
RETURN ret;
END;
$$
DELIMITER ;
Try above code.
There is no SQLSTATE with 4500.Instead of 4500 you can try 45000 SQLSTATE
Hope this will help you.
Related
The database is about exam scheduling and this is the main stored procedure which is about scheduling courses on a given date.
I created the procedure but when I try to call it says the procedure is not found.
I've looked through the code but can't find syntax errors, the procedure itself does not have compilation errors, (but that may be because I have to use delimiters?)
DELIMITER $$
CREATE PROCEDURE schedule_course(IN in_code CHAR(3), IN in_date DATE)
BEGIN
DECLARE complete BOOLEAN DEFAULT FALSE;
DECLARE module_code CHAR(3);
DECLARE module_c CURSOR FOR
SELECT course_code FROM module WHERE course_code = in_code;
DECLARE CONTINUE HANDLER FOR NOT FOUND
SET complete = TRUE;
IF (DAYOFWEEK(in_date) = 6 OR 7) THEN
SIGNAL SQLSTATE '45000'
SET MESSAGE TEXT = 'Cannot schedule start date on a weekend'
END IF;
OPEN module_c;
mainloop : LOOP
FETCH NEXT FROM module_c INTO module_code;
IF complete THEN
SIGNAL SQLSTATE '45000'
SET MESSAGE TEXT = 'Something something'
END IF;
INSERT INTO SESSION (`code`, `date`, room)
VALUES
(module_code, in_date, NULL)
LEAVE mainloop;
END LOOP;
DELIMITER ;
CALL schedule_course(WSD, CURDATE())
Error Code: 1305. PROCEDURE cameron.schedule_course does not exist
Mysql 8 show a lot of errors.
I corrected them, the logic is sound but of course you have to check it,
DELIMITER $$
CREATE DEFINER=`root`#`localhost` PROCEDURE schedule_course(IN in_code CHAR(3), IN in_date DATE)
BEGIN
DECLARE complete BOOLEAN DEFAULT FALSE;
DECLARE module_code CHAR(3);
DECLARE module_c CURSOR FOR
SELECT course_code FROM module WHERE course_code = in_code;
DECLARE CONTINUE HANDLER FOR NOT FOUND
SET complete = TRUE;
IF (DAYOFWEEK(in_date) = 6 OR DAYOFWEEK(in_date) = 7) THEN
SIGNAL SQLSTATE '45000'
SET MESSAGE_TEXT = 'Cannot schedule start date on a weekend';
END IF;
OPEN module_c;
mainloop : LOOP
FETCH NEXT FROM module_c INTO module_code;
IF complete THEN
SIGNAL SQLSTATE '45000'
SET MESSAGE_TEXT = 'Something something';
END IF;
INSERT INTO SESSION (`code`, `date`, room)
VALUES
(module_code, in_date, NULL);
LEAVE mainloop;
END LOOP;
CLOSE module_c;
END;
DELIMITER ;
seems you have not an end (END $$)
DELIMITER $$
CREATE PROCEDURE schedule_course(IN in_code CHAR(3), IN in_date DATE)
BEGIN
DECLARE complete BOOLEAN DEFAULT FALSE;
DECLARE module_code CHAR(3);
DECLARE module_c CURSOR FOR
SELECT course_code FROM module WHERE course_code = in_code;
DECLARE CONTINUE HANDLER FOR NOT FOUND
SET complete = TRUE;
IF (DAYOFWEEK(in_date) = 6 OR 7) THEN
SIGNAL SQLSTATE '45000'
SET MESSAGE TEXT = 'Cannot schedule start date on a weekend'
END IF;
OPEN module_c;
mainloop : LOOP
FETCH NEXT FROM module_c INTO module_code;
IF complete THEN
SIGNAL SQLSTATE '45000'
SET MESSAGE TEXT = 'Something something'
END IF;
INSERT INTO SESSION (`code`, `date`, room)
VALUES
(module_code, in_date, NULL)
LEAVE mainloop;
END LOOP;
END $$
DELIMITER ;
i'm trying to translate my oracle trigger to mysql but i'm getting an error. This is my mysql trigger:
delimiter //
CREATE TRIGGER z_asdsdas BEFORE UPDATE ON PRODUCT
FOR EACH ROW
BEGIN
DECLARE v_result INT;
SET v_result = 0;
IF 'BETWEEN' = 'BETWEEN' THEN
IF NEW.PRIJS >= 1 AND NEW.PRIJS <= 10 THEN
SET v_result = 1;
END IF;
ELSE
IF NEW.PRIJS < 1 OR NEW.PRIJS > 10 THEN
SET v_result = 1;
END IF;
END IF;
IF v_result = 0 THEN
signal sqlstate -20000 set msgtext = 'error here...';
END IF;
END //
DELIMITER ;
I gave the mysql trigger static values first to test if it should work. This is my oracle trigger:
CREATE OR REPLACE TRIGGER BRG_<code>_<attribute_table>_TRG
BEFORE DELETE OR INSERT OR UPDATE
ON <attribute_table>
FOR EACH ROW
DECLARE
L_OPER VARCHAR2(3);
L_ERROR_STACK VARCHAR2(4000);
BEGIN
IF INSERTING
THEN
L_OPER := 'INS';
ELSIF UPDATING
THEN
L_OPER := 'UPD';
END IF;
DECLARE
L_PASSED BOOLEAN := TRUE;
BEGIN
IF L_OPER IN ('INS', 'UPD')
THEN
IF '<operator>' = 'BETWEEN' THEN
L_PASSED := :NEW.<attribute_column> <GreaterOrEqual> <range_min> AND :NEW.<attribute_column> <LessOrEqual> <range_max>;
ELSE
L_PASSED := :NEW.<attribute_column> <LessThen> <range_min> OR :NEW.<attribute_column> <GreaterThen> <range_max>;
END IF;
IF NOT L_PASSED
THEN
raise_application_error(-20000, '<error>');
END IF;
END IF;
END;
END;
The compiler is gives red lines at the if-statements and a message: syntax error at line 17. Any idea what i'm doing wrong? Mysql is pretty new for me.
Try to correct the line signalling:
...
SIGNAL SQLSTATE '45000' SET MESSAGE_TEXT = 'error here...';
...
I am trying to create the below function in MySQL but getting syntax error.
I am not able to find the solution, would be grateful for some help
CREATE FUNCTION `test`.`pro`(depart_id int) RETURNS varchar
BEGIN
DECLARE title varchar;
if depart_id = 1 then
set title='IT Department';
else if depart_id = 2 then
set title='HR Department';
else
set title='Admin';
end if;
return title;
END$$
DELIMITER ;
You have several syntax errors in your script:
varchar must have a length
You should define DELIMITER $$ first
It's not else if, but elseif
Try this;)
DELIMITER $$
CREATE FUNCTION `test`.`pro`(depart_id int) RETURNS varchar(10)
BEGIN
DECLARE title varchar(10);
if depart_id = 1 then
set title='IT Department';
elseif depart_id = 2 then
set title='HR Department';
else
set title='Admin';
end if;
return title;
END $$
DELIMITER ;
My proposed trigger:
#START TRIGGER
delimiter //
DECLARE msg VARCHAR(255);
CREATE TRIGGER passStandard_check BEFORE INSERT ON Module
FOR EACH ROW
BEGIN
IF NEW.passStandard < 0 || NEW.passStandard > 1 THEN
set msg = concat('Trigger Error: Pass Standard: ', cast(NEW.passStandard as char));
signal sqlstate '45000' set message_text = msg;
END
//
delimiter ;
#END TRIGGER
But I get the following error:
Error Code: 1064. 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 'DECLARE msg VARCHAR(255); CREATE TRIGGER passStandard_check BEFORE INSERT ON Mod' at line 1
Adding in END IF does not make any difference.
passStandard is set to an INT NOT NULL.
Edit
I've moved the DECLARE statement after the BEGIN:
#START TRIGGER
delimiter //
CREATE TRIGGER passStandard_check BEFORE INSERT ON Module
FOR EACH ROW
BEGIN
DECLARE msg VARCHAR(255);
IF NEW.passStandard < 0 || NEW.passStandard > 1 THEN
set msg = concat('Trigger Error: Pass Standard: ', cast(NEW.passStandard as char));
signal sqlstate '45000' set message_text = msg;
END IF;
END
//
delimiter ;
#END TRIGGER
But I still get this error:
Error Code: 1064. 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 'sqlstate '45000' set message_text = msg; END IF; END' at line 7
You need to declare your variable "msg" inside your procedure and use END IF
#START TRIGGER
delimiter //
CREATE TRIGGER passStandard_check BEFORE INSERT ON Module
FOR EACH ROW
BEGIN
DECLARE msg VARCHAR(255); /* << PUT THIS HERE */
IF NEW.passStandard < 0 || NEW.passStandard > 1 THEN
set msg = concat('Trigger Error: Pass Standard: ', cast(NEW.passStandard as char));
signal sqlstate '45000' set message_text = msg;
END IF; /* << YOU WILL NEED THIS TOO (DONT FORGET THE SEMICOLON :D) */
END//
delimiter ;
#END TRIGGER
I noticed that I was getting MySQL warnings when adding triggers with IF/ELSE logic in them if I wasn't adding parentheses to the IF statements. Not sure why, but I added the brackets and the warnings went away. Try something like:
IF ((NEW.passStandard < 0) || (NEW.passStandard > 1)) THEN
set msg = concat('Trigger Error: Pass Standard: ', cast(NEW.passStandard as char));
signal sqlstate '45000' set message_text = msg;
END IF;
Try breaking it up to several queries. Or run it in phpmyadmin which handles semi colon separated multi queries.
Might be this:
DECLARE is permitted only inside a BEGIN ... END compound statement and must be at its start, before any other statements.
http://dev.mysql.com/doc/refman/5.0/en/declare.html
i got it working. pls find below the working code.
delimiter //
CREATE TRIGGER test_check1 BEFORE INSERT ON employee
FOR EACH ROW
BEGIN
DECLARE msg VARCHAR(255);
IF (NEW.sync_id = '0') THEN
SET NEW.name = 'Collect Money';
signal sqlstate '45000' set message_text = msg;
END IF;
END//
delimiter ;
delimiter |
CREATE FUNCTION BASE64_DECODE (input BLOB)
RETURNS BLOB
CONTAINS SQL
DETERMINISTIC
SQL SECURITY INVOKER
BEGIN
DECLARE ret BLOB DEFAULT '';
DECLARE done TINYINT DEFAULT 0;
IF input IS NULL THEN
RETURN NULL;
END IF;
each_block:
WHILE NOT done DO BEGIN
DECLARE accum_value BIGINT UNSIGNED DEFAULT 0;
DECLARE in_count TINYINT DEFAULT 0;
DECLARE out_count TINYINT DEFAULT 3;
each_input_char:
WHILE in_count < 4 DO BEGIN
DECLARE first_char CHAR(1);
IF LENGTH(input) = 0 THEN
RETURN ret;
END IF;
SET first_char = SUBSTRING(input,1,1);
SET input = SUBSTRING(input,2);
BEGIN
DECLARE tempval TINYINT UNSIGNED;
DECLARE error TINYINT DEFAULT 0;
DECLARE base64_getval CURSOR FOR SELECT val FROM base64_data WHERE c = first_char;
DECLARE CONTINUE HANDLER FOR SQLSTATE '02000' SET error = 1;
OPEN base64_getval;
FETCH base64_getval INTO tempval;
CLOSE base64_getval;
IF error THEN
ITERATE each_input_char;
END IF;
SET accum_value = (accum_value << 6) + tempval;
END;
SET in_count = in_count + 1;
IF first_char = '=' THEN
SET done = 1;
SET out_count = out_count – 1;
END IF;
END; END WHILE;
WHILE out_count > 0 DO BEGIN
SET ret = CONCAT(ret,CHAR((accum_value & 0xff0000) >> 16));
SET out_count = out_count – 1;
SET accum_value = (accum_value << 8) & 0xffffff;
END; END WHILE;
END; END WHILE;
RETURN ret;
END |
The error I'm getting is:
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 '– 1;
END IF;
END; END WHILE;
' at line 52
WHILE loops in MySQL are simply terminated with END WHILE;. You've got END; END WHILE; which is incorrect.
That END before END WHILE; is causing the problem. You already have an END on line 46, so this one is trying to end the function. I'll bet you can just remove it.
The problem, silly as it was, was the use of non-standard symbols throughout. -s and 's were wrong format. Due to the encoding of the IDE I am using or something just as silly.
facepalm