mysql 批量更新和批量插入

    1. 批量更新

    update table_name set field_name = CASE id 

    WHEN id1 THEN  field_value,

    WHEN id1 THEN  field_value

    END

   2.批量插入

    insert into table_name (field1_name, field2_name) values(field1_value, field2_name) , (field1_value, field2_name)