Most likely to be done over batch ingestion as this is the appropiate method for large quantities of data, I believe the frequency can be scheduled, i.e. every 1 minute.    https://experienceleague.adobe.com/docs/experience-platform/ingestion/home.html?lang=en 

Formats the date value contained in optout.@OPT_Date  with the given formathttps://experienceleague.adobe.com/developer/campaign-api/api/f-formatDate.html You can specify a number in front of certain of these characters. The A and B characters can be followed by a l to use the full name rather than ...

Check the link between your schema and the other schema's, can you post an ERD diagram with cardinalities, also from the below; are you sure the link NAME is [sConsumer/.....], if you click on your schema -->configure list... are you able to see the fields from the other schema? post a screenshot <n...

Create an enumeration in your product's schema  <enumeration basetype="byte" name="cusColorProfile"> <value label="White" name="white" value="0"/> <value label="Yellow" name="yellow" value="1"/> <value label="Red" name="red" value="2"/> <value label="Blue" name="blue" value="3"/> ...

Try Adam Wheelerawheeler@adobe.comConsulting Services Sales Account ManagerAdobe Consulting EMEA - Northern Europe

Refer to the following link hat has more details https://experienceleague.adobe.com/docs/campaign-classic/using/sending-messages/sending-push-notifications/configure-the-mobile-app/configuring-the-mobile-application-android.html#configuring-external-account-android   

Please read documentation carefully, watch the following video https://experienceleague.adobe.com/docs/campaign-classic-learn/getting-started-with-push-notifications-for-android/configuring-an-android-service-in-campaign.html?lang=en#configuring-an-android-service-and-creating-an-android-mobile-appl...

Doesnt the following work?  logInfo(c.@SRCC_CON_ID); logInfo(c.@EMDA_ADDRESS):

It doesn exist because you've just deleted it, however, you have an activity after it still referencing it. In this case, you still need to loop all records and check if any of them contain a value for your column before you execute the column removal. something like below.  var query = xtk.queryDef...

Just do the following   var xml = <queryDef distinct="true" schema="elc:BDERIVEDCONSUMER" operation="select"> <select> <node expr="@DCNS_ID"/> <node expr="[sConsumer/@SRCC_CON_ID]" alias="@SRCC_CON_ID"/> <node expr="[BEMEDIA-DCNS_ID/@EMDA_ADDRESS]" alias="@EMDA_ADDRESS"/> </s...