Mysterious error in CREATE PROCEDURE in MariaDB/MySQL

问题

I tried to make a simple procedure in MariaDB 10.2 but I encountered an issue regarding variables defining.

I am receiving (conn:107) You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near '' at line 3 message when I declare a variable.

I read the MariaDB documentation and I it says that a variable is defined like this DECLARE var_name [, var_name] ... type [DEFAULT value]

Where I am wrong? I am coming from Oracle SQL and some sintax is wired for me.

I use Eclipse with MariaDB JDBC to connect on SQL.

CREATE PROCEDURE nom_jobs_insert(IN p_name varchar(100) CHARACTER SET 'utf8')
BEGIN
    DECLARE counter INT DEFAULT 0;

    SELECT count(*) INTO counter
    FROM nom_jobs
    WHERE lower(name) = lower(p_name)

    IF counter = 1 THEN
        INSERT INTO nom_jobs(name) VALUES (p_name);
    END IF;
END;

回答1:

I found the solution.

In MariaDB you have to define a delimiter before create a procedure and you need to mark where the procedure code is finished.

DELIMITER //
CREATE PROCEDURE nom_jobs_insert(IN p_name varchar(100) CHARACTER SET 'utf8')
BEGIN
    DECLARE counter INT DEFAULT 0;

    SELECT count(*) INTO counter
    FROM nom_jobs
    WHERE lower(name) = lower(p_name);

    IF counter = 1 THEN
        INSERT INTO nom_jobs(name) VALUES (p_name);
    END IF;
END; //

回答2:

You have error not in DECLARE expression, add ; after SELECT statement

回答3:

Here are the clues that point to a missing DELIMITER:

near '' at line 3
Line 3 contains the first ;
When the error says near '', the parser thinks it has run off the end of the "statement".

Put those together -- it thinks that there is one 3-line statement ending with ;. But the CREATE PROCEDURE should be longer than that.

回答4:

CREATE PROCEDURE nom_jobs_insert(IN p_name varchar(100) CHARACTER SET 'utf8') IS DECLARE counter INTEGER DEFAULT 0; BEGIN

SELECT count(*) INTO counter
FROM nom_jobs
WHERE lower(name) = lower(p_name)

IF counter = 1 THEN
    INSERT INTO nom_jobs(name) VALUES (p_name);
END IF;

END;

来源：https://stackoverflow.com/questions/47062973/mysterious-error-in-create-procedure-in-mariadb-mysql

标签

mysql

stored-procedures

mariadb