>>>>>(Why I have integer surrogate keys in the first place is not my fault-I'm maintaining and can't change the base tables).
>>>>>
>>>>>I need to work with tables offline. So:
>>>>>-I create a separate view with only view definitions in it (one table-one view).
>>>>>-Take them offline to a mobile place.
>>>>>
>>>>>When they need to be updated is there a way to do that just using tableupdate() or alike instead of checking per table (using getnextmodified) and doing record by record insert/update/delete?
>>>>>Browsed all documentation about it + some tests to no avail:(
>>>>>TIA.
>>>>>Cetin
>>>>
>>>>add a ts
>>>
>>>Nice Fabio I even wanted to add a GUID but where:)
>>>Cetin
>>
>>ts is a timestamp, GUID is a global id and id is a table's id .
>>
>>I have not understood what you have to do,
>>but ts it is necessary.
>>
>>1) Want you implement a
>>master/slave replication
>>or
>>peer to peer replication ?
>>
>>Where do the changes happen?
>>
>>Will The tables have a primary key, correct?
>>
>>The views are created with CREATEOFFLINE ?
>
>OK let me try to a bit more clear:
>
>TableA, TableC,...tableN all have integer primary keys generated via stored proc (modified version of NewID()).
>
>Tables have PK-FK relationships.
>
>I need to take them offline, work on them and get back.
>
>Let's sample with testdata.dbc:
>
>A new customer is inserted offline. Key is not yet known (will be assigned later, only have a key which is valid in offline set).
>
>Multiple orders are inserted for this customer. Again keys are valid for offline set, also FK cust_id is locally valid.
>
>Per each order orditems are inserted using locally valid FK.
>
>Now when this data gets back to online would this work (actually up till now I didn't use views so not sure-testing different scenarios):
>If I create the PK-FK relations with cascade in views before I take them offline, use online exclusive, tableupdate(). Would all tables get correct PK-FK generated on master db? This would need a special care on the order of tableupdates but I can handle it ( around 120 tables:( ) if that would work.
>Otherwise what I do is to:
>Take an offline view (use online exclusive):
>GetNextModified loop.
>insert/update.
>Get pkey assigned
>Update FKs in referenced tables.
>
>Hope it's understandable now.
>Cetin
Offline is offline
( an offline view cannot know the master db history, it is a snapshot only ).
A way:
Into offline tables or local view generate negative id,
this respect the order and don't overlap the pk domain in master db.
But if you use GetNextModified , then it is not an offline view,
it is a local view only.
A offline view is a local table,
and you can close the process and sync the master db
when the application allocate another process ( after a month ).
Previous
Next
Reply
View the map of this thread
View the map of this thread starting from this message only
View all messages of this thread
View all messages of this thread starting from this message only