title: What will happen to existing data if I change the collation of a column in MySQL?
body: <p>I am running a production application with MySQL database server. I forget to set column's collation from <code>latin</code> to <code>utf8_unicode</code>, which results in strange data when saving to the column with multi-language data.</p>
  
  <p>My question is, what will happen with my existing data if I change my collation to utf8_unicode now? Will it destroy or corrupt the existing data or will the data remain, but the new data will be saved as <code>utf8</code> as it should?</p>
  
  <p>I will change with phpMyAdmin web client.</p>