MySQL error code: 1175 during UPDATE in MySQL Workbench

SET SQL_SAFE_UPDATES=0;
UPDATE tablename SET columnname=1;
SET SQL_SAFE_UPDATES=1;

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).

SET SQL_SAFE_UPDATES = 0;

# your code SQL here

SET SQL_SAFE_UPDATES = 1;

Follow the following steps before executing the UPDATE command: In MySQL Workbench

1. Go to Edit --> Preferences
2. Click "SQL Editor" tab and uncheck "Safe Updates" check box
3. Query --> Reconnect to Server // logout and then login
4. Now execute your SQL query

p.s., No need to restart the MySQL daemon!