The code below is giving many semicolons related errors. I am new to MySql, so clue-less.
CREATE PROCEDURE `sp_get_orderbystatus`(p_status_id int)
BEGIN
declare v int;
if(p_status_id = 1) then
begin
set v = 1;
end;
end if;
END
It looks like you need to change the DELIMITER if you're trying to execute this in mysql cli.
DELIMITER // -- change the delimiter to '//'
CREATE PROCEDURE `sp_get_orderbystatus`(p_status_id int)
DECLARE v INT;
-- the rest of the code of your procedure
END//
DELIMITER ; -- change it back to ';'
Defining Stored Programs
If you use the mysql client program to define a stored program containing semicolon characters, a problem arises. By default, mysql itself recognizes the semicolon as a statement delimiter, so you must redefine the delimiter temporarily to cause mysql to pass the entire stored program definition to the server.
try:
delimiter //
YOUR PROCEDURE HERE
END//
delimiter ;
Related
I'm trying to make a simple stored procedure... After exploring a bit, I discover I can't make any procedure at all, not even the simplest.
For exemple, running this specific procedure from the documentation:
DELIMETER ;
DROP PORCEDURE IF EXISTS sp_dorepeat
DELIMETER //
CREATE PROCEDURE sp_dorepeat(p1 INT)
BEGIN
SET #x = 0;
REPEAT SET #x = #x + 1; UNTIL #x > p1 END REPEAT;
END //
DELIMETER ;
Gives me the following error:
Which is basically the same syntax error on every line.
Changing the $$ for // also doesn't have any effect, as suggested here.
It's worth knowing that I'm running the shell as root, so there are no restrictions.
Is there anything wrong with my code? The database is mysql 8.0
Of course you can , but with the right keywords
DELIMETER -> DELIMITER
PORCEDURE -> PROCEDURE
I'm getting the 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 9 but line 9 has nothing on it and it shows that the error is an empty string in the message.
START TRANSACTION;DROP PROCEDURE IF EXISTS `ReporteAcumulado`;
CREATE DEFINER = CURRENT_USER PROCEDURE `ReporteAcumulado`(in Tipo int,in dtInicio date,in dtFin date,in dtmensual date)
SQL SECURITY INVOKER
BEGIN
if Tipo=0 then
END if;
if Tipo=1 then
end if;
END
COMMIT;
The problem is that MySQL is interpreting the semicolons between the BEGIN and END statements as terminating the CREATE PROCEDURE statement, rather than simply being part of the code of the procedure.
You should change the delimiter from ; to something else (// is commonly used when defining MySQL procs). If you don't already have it, add DELIMITER // before the CREATE PROCEDURE statement, and put DELIMITER ; after the END statement for the procedure. I also don't believe that you need to start and commit a transaction when defining a procedure - I've never found it necessary, but perhaps you're doing something different. You also need // after the END. In addition, I've never seen an empty block between IF...THEN...END IF so I'm not sure how that might affect things.
So your code should look something like
DROP PROCEDURE IF EXISTS `ReporteAcumulado`;
DELIMITER //
CREATE DEFINER = CURRENT_USER PROCEDURE `ReporteAcumulado`(in Tipo int,in dtInicio date,in dtFin date,in dtmensual date)
SQL SECURITY INVOKER
BEGIN
if Tipo=0 then
END if;
if Tipo=1 then
end if;
END//
DELIMITER ;
The MySQL documentation for CREATE PROCEDURE explains it this way:
The example uses 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.
CREATE PROCEDURE `new_procedure` ()
declare v int;
BEGIN
v := 10;
dbms_output.put_line(v);
END
Here I was writing this simple code in create procedure portion and getting error in MySQL Workbench.
This is how you create a stored procedure in MySQL from Workbench:
DELIMITER //
CREATE PROCEDURE MyStoredProcedure
(IN colValue CHAR(20))
BEGIN
INSERT INTO MyTable(MyColumn) VALUES(colValue);
END //
DELIMITER ;
You can read more about it in the MySQL Documentation.
To execute the procedure: CALL MyStoredProcedure(<some_value>);
Stored procedures were introduced in MySQL 5 so be sure to be running that version.
Why do we need to temporarily change the DELIMITER?
From the doc:
By default, mysql itself recognizes the semicolon as a statement
delimiter, so you must redefine the delimiter temporarily to cause
mysql to pass the entire stored program definition to the server. To
redefine the mysql delimiter, use the delimiter command.
I am writing a stored procedure on MYSQL to check if there are recording matching some criteria and output values.
I am used to write in MSSQLSEVER
here is an excerpt of the procedure:
CREATE PROCEDURE prc1(
IN input VARCHAR(15),
OUT output INT
)
this_proc:
BEGIN
SET output = 0;
DECLARE inputCount INT DEFAULT 0;
SELECT COUNT(name) INTO inputCount FROM table WHERE table.name = input;
IF (inputCount> 0) THEN
SET output= 1;
LEAVE this_proc;
END IF;
END;
i am getting errors at each one of this lines:
SET output = 0;
DECLARE ...
IF ...
END IF;
END;
am i doing any syntax error or something?
Give this a shot. It gets past syntax errors, cleans up labels, points you toward fixing mytablename, wraps with delimiters, shows call.
drop procedure if exists prc1;
DELIMITER $$
CREATE PROCEDURE prc1(
IN input VARCHAR(15),
OUT output INT
)
-- this_proc:
BEGIN
DECLARE inputCount INT;
set input=0;
SET output = 0;
SELECT COUNT(name) INTO inputCount FROM mytablename WHERE name = input; -- fix mytablename
IF (inputCount> 0) THEN
SET output= 1;
-- LEAVE this_proc; -- not necessary, you are about to leave anyway !
END IF;
END;
$$ -- signify end of block
DELIMITER ; -- reset to default delimiter
Test it
call prc1('fred',#myVar);
Delimiters
Delimiters are important to wrap the block of the stored proc creation. The reason is so that mysql understands that the sequence of statements that follow are still part of the stored proc until it reaches the specified delimiter. In the case above, I made up one called $$ that is different from the default delimiter of a semi-colon that we are all used to. This way, when a semi-colon is encountered inside the stored proc during creation, the db engine will just consider it as one the many statements inside of it instead of terminating the stored proc creation. Without doing this delimiter wrapping, one can waste hours trying to create their first stored proc getting Error 1064 Syntax errors. At the end of the create block I merely have a line
$$
which tell mysql that that is the end of my creation block, and then the default delimiter of a semi-colon is set back with the call to
DELIMITER ;
Mysql manual page Using Delimiters with MySqlScript. Not a great manual page imo, but trust me on this one. Same issue when creating Triggers and Events.
I am trying to understand, why delimiter used with stored procedure in mysql?
but i couldn't.
DELIMITER //
CREATE PROCEDURE GetAllProducts()
BEGIN
SELECT * FROM products;
END //
DELIMITER ;`
Mysql's default delimiter is ; which is used for one statement in the command line , something as
select * from users ;
When you write a trigger or stored procedure to execute the entire code mysql needs to understand that its a block of code/query.
If no delimiter is provided then when mysql encounters any ; inside the store procedure or trigger it will think that as one statement and will try to execute it. So we need to provide a delimiter for store procedure or trigger and make mysql understand that anything within that delimiter is one complete set of code.
So in your example
SELECT * FROM products;
it will be a part of the complete statement when there is a delimiter other than ; is provided at the beginning.