Correct. Many hashing functions designed for password hashing build the salt directly into the output string, in order to make it difficult to accidentally hash

Correct. Many hashing functions designed for password hashing build the salt directly into the output string, in order to make it difficult to accidentally hash passwords without using a salt. On the other hand, if you're just using a bare hash function, you may find it convenient to store the salt in a separate column, if only to save yourself having to split on a separator character / character length in your application logic.