MySQL error code: 1175 during UPDATE in MySQL Workbench

Question

I\'m trying to update the column visited to give it the value 1. I use MySQL workbench, and I\'m writing the statement in the SQL editor from inside the workben

Answer 1

SET SQL_SAFE_UPDATES = 0;

# your code SQL here

SET SQL_SAFE_UPDATES = 1;

Answer 2

I found the answer. The problem was that I have to precede the table name with the schema name. i.e, the command should be:

UPDATE schemaname.tablename SET columnname=1;

Thanks all.

Answer 3

If you're having this problem in a stored procedure and you aren't able to use the key in the WHERE clause, you can solve this by declaring a variable that will hold the limit of the rows that should be updated and then use it in the update/delete query.

DELIMITER $
CREATE PROCEDURE myProcedure()
BEGIN
    DECLARE the_limit INT;

    SELECT COUNT(*) INTO the_limit
    FROM my_table
    WHERE my_column IS NULL;
        
    UPDATE my_table
    SET my_column = true
    WHERE my_column IS NULL
    LIMIT the_limit;
END$

Answer 4

It looks like your MySql session has the safe-updates option set. This means that you can't update or delete records without specifying a key (ex. primary key) in the where clause.

Try:

SET SQL_SAFE_UPDATES = 0;

Or you can modify your query to follow the rule (use primary key in where clause).

Answer 5

No need to set SQL_SAFE_UPDATES to 0, I would really discourage it to do it that way. SAFE_UPDATES is by default on for a REASON. You can drive a car without safety belts and other things if you know what I mean ;) Just add in the WHERE clause a KEY-value that matches everything like a primary-key comparing to 0, so instead of writing:

UPDATE customers SET countryCode = 'USA'
    WHERE country = 'USA';               -- which gives the error, you just write:

UPDATE customers SET countryCode = 'USA'
    WHERE (country = 'USA' AND customerNumber <> 0); -- Because customerNumber is a primary key you got no error 1175 any more.

Now you can be assured every record is (ALWAYS) updated as you expect.

Answer 6

In the MySQL Workbech version 6.2 don't exits the PreferenceSQLQueriesoptions.

In this case it's possible use: SET SQL_SAFE_UPDATES=0;