Any way to use merge for mutliple tables w/ shared PK?

If you have multiple tables who share the same PK (or I should say the main table has a certain valye used as Primary Key and then multiple child tables use that PK as a foreign key), would merge be able to work for you?
in my case I have one source table, which is loaded by flat file and represents a flattened record of what would in my database be separated into multiple tables.
I need to update records from that source table where they exist (based on join of non-PK columns) and then insert where they do not exist. So I thought I could utilize the nifty merge command.
However I am quickly realizing this is not a standard use of merge which seems to be designed for going from one source table to one target tables which are roughly equivalent. But in my case I have one source table which has pieces going into table A, other pieces table B, etc... and all those tables share an ID.
So when I first merge into the main table I use a sequence to generate it's PK. But then the problem becomes, how do I then have this same PK used as the value for the FK in the inserts done by the following merge commands for this child tables?

trant wrote:
If you have multiple tables who share the same PK (or I should say the main table has a certain valye used as Primary Key and then multiple child tables use that PK as a foreign key), would merge be able to work for you?
in my case I have one source table, which is loaded by flat file and represents a flattened record of what would in my database be separated into multiple tables.
I need to update records from that source table where they exist (based on join of non-PK columns) and then insert where they do not exist. So I thought I could utilize the nifty merge command.
However I am quickly realizing this is not a standard use of merge which seems to be designed for going from one source table to one target tables which are roughly equivalent. But in my case I have one source table which has pieces going into table A, other pieces table B, etc... and all those tables share an ID.
So when I first merge into the main table I use a sequence to generate it's PK. But then the problem becomes, how do I then have this same PK used as the value for the FK in the inserts done by the following merge commands for this child tables?realize that everyone here speaks SQL
I could better understand what you have & what you desire if you post DDL for all tables
& then you explain what is desired using actual table & column names.
Simply put, I would not recognize any post SQL as being correct, since I do not understand the desired goal/results

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