I am trying to query two synchronized data extension and update the result to a data extension

From Plot__c_Salesforce P Join Opportunity_Salesforce O 
On P.Opportunity__c.Id = O.Id

But i am getting a syntax errors

An error occurred while checking the query syntax. Errors: Cannot call methods on nvarchar.

An error occurred while checking the query syntax. Errors: Incorrect syntax near ')'.

What i am doing Wrong Could anyone suggest me.

1 Answer 1


I think the issue is that your fields have '.' periods in them. This is reserved for use of table alias association with fields, mostly used in joins, (e.g. tableA.field = tableB.field) which is causing a syntax issue on those with periods in the field name.

Likely to get around this you should use brackets to escape all the chars inside your field name. See below:

From [Plot__c_Salesforce] P Join [Opportunity_Salesforce] O 
On P.[Opportunity__c.Id] = O.[Id]

I added the brackets to all of your fields and DEs for the example, but you technically only need to do so on the ones that could break the SQL syntax.

  • Hi Gortonigton Thanks for ur Answer. If i update the above SQL i am receving this error . An error occurred while checking the query syntax. Errors: [Plot__c_Salesforce] is not a known data extension or system data view. You can only query existing data extensions or system data views. Commented Oct 26, 2018 at 10:15
  • check to see if this requires the ent. prefix (shared DE, etc) - which is required if you are referencing a DE inside the parent account from a child BU. Commented Nov 13, 2018 at 13:47

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