是在DW还是阶段中创建Surrogat密钥？

Question

Should the surrogate key, for instance customerKey for dimension customer, be created in the stage process and then the all data should be loaded into the dimCustomer or should the customerkey be created automatically in the dimCustomer when you are loading the data to the dimCustomer table?

What is your reflection and experience?

Answer 1

在加载过程中，通常会自动递增。