Answer by a1ex07 for Update Large Table
I think you can try adding LIMIT to your update (and modify a bit WHERE to filter out already changed records). If you do, for instance, LIMIT 100, it won't take 1 day. Surely, if you want to change...
View ArticleAnswer by RolandoMySQLDBA for Update Large Table
Answer to question 1This should do it for youUPDATE user_activity aINNER JOIN user_profile b USING (user_profile_id)SET a.user_profile_id_int = b.user_profile_id_int;This will work in MySQL. If you are...
View ArticleUpdate Large Table
I have these two tables:user_profile:user_profile_id_int int primary key user_profile_id varcharuser_activity:user_profile_id_int int keyuser_profile_id varcharboth fields in user_profile are ok but I...
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