Question

I have data split other few tables as per 3d NF.

say Parent (ID, ParentData), Child (ID, ParentID, ChildData)

Parent has Date field and I want to split the parent and all children by the Date (so all data which constitutes a particular date has to be separated in a partition)

Answer 1

This is simpler than you might think, the phrase used for tables / indexes being placed on the same partition scheme can be referred to as ‘partition aligned’.

• Create a single partition scheme, allocating your partitions onto the filegroups.
• Create a single partition function, accepting a date parameter.
• Create both tables, each creation has an additional clause at the end.

The caveat there is that both tables (Parent / Child) need to have that date column within their schema. The child record can not inhreit the parents partition – you could use a computed column and a few other tricks, but you basically need to ensure the child records contain an appropriate date as well.

ON your_partition_schem_name ( your_date_field )

Indexes can also be ‘partition aligned’ in the same way as the tables can.