CODEWITHSUNDEEP
mysqlsqlgo
Konkovac
Konkovac

Reputation: 41

Creating stored procedure on MySQL

I'm trying to run the query below, that is stored in a .sql file, then read with ioutils.ReadFile and executed on initialization 

CREATE TABLE IF NOT EXISTS districts
(
    GeoCode integer PRIMARY KEY,
    name    varchar(32)
);

drop procedure if exists insert_district;

DELIMITER $$

CREATE PROCEDURE insert_district(in pgeocode int, in pname varchar(32))
BEGIN
    INSERT INTO districts(geocode, name) VALUES (pgeocode, pname);
    SELECT * FROM districts where geocode = pgeocode;
END$$
DELIMITER ;

I am using the database/sql package and run the query with Exec 

Error 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 'drop procedure if exists insert_district;

DELIMITER $$

CREATE PROCEDURE insert' at line 7

To the best of my knowledge my syntax is correct, and I tested it so I cannot figure out why the same exact query cannot be run properly from the program.

Upvotes: 2

Views: 372

Answers (1)

Bill Karwin
Bill Karwin

Reputation: 562328

The Go MySQL client does not support multiple SQL statements by default. You can't just feed it a text file with ; separated statements.

See Does a Go Mysql driver exist that supports multiple statements within a single string? for details — there's an option you can use to allow multi-statements.

But that still won't support statements like DELIMITER which are not recognized by the MySQL Server. That's a mysql client command.

You have two alternatives:

  • Parse the .sql file to find statement terminators and run the statements one at a time.
  • Execute the mysql client in a sub-process using the .sql file as input.

Upvotes: 5

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