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Data Provider languageOfficial Content

The language used in Data Providers can be defined as a very simple, output-based declarative language. It has three main components: Groups, Elements and Variables. For example:

Customers    // this is a Group
{
   &StartTime = now()  // this is a Variable
   Customer  // this is a Group
   {
      Code = CustomerId    // this is an Element
      Name = CustomerName  // this is an Element
   }
}

'Customers' and 'Customer' are Groups, 'Code' and 'Name' are Elements and '&StartTime' is a variable.

Remember that the output will be hierarchical data, loaded in an SDT or BC that is specified in the Output Property. The hierarchical structure that is obtained with the names of groups and elements must exactly match this structure.

Syntax#

<mainGroupList> [<subGroupList>]

where:

<mainGroupList> ::= <group> | <mainGroupList><group>

That is: a list of groups (Data provider Group statement)

<subGroupList> 

An optional list of subgroups (Data Provider Subgroup statement), in order to be invoked by means of a Data Provider Subgroup statement inside some group of <mainGroupList> instead of a Data provider Element statement.

 

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