One of the declarations has minOccurs set to 0, corresponding to the OrderID from the CustOrderDetail table, and the second one maps to the OrderID primary key column of the In FOR XML, the same name can be used to indicate two subelements. Only a fraction of the inline XSD is shown:Both the ListPrice and DealerPrice are of the same type, The following query illustrates one key and one nonkey column of the same type.This is the result. Note in the inline XSD schema, the OrderID element is defined two times. For example, the following attribute-centric RAW mode query generates two attributes that have the same name, OrderID. At a minimum, the following two schema documents are returned:Another schema document that describes the shape of the FOR XML query result.The target namespace of the schema document that describes the shape of the FOR XML result contains a fixed portion and a numeric portion that increments automatically.
The format of this namespace is shown in the following where The change in the target namespaces in the result that occurred from one execution to another may not be desirable. The
If you want an XDR schema, you use the XMLDATA keyword in the FOR XML clause. Each top-level element of the data refers to the previous schema by using a default namespace declaration that, in turn, refers to the target namespace of the inline schema.The result includes XML schema and the XML result. Following are the limitations when you are requesting inline schemas:You can specify XMLSCHEMA only in RAW and AUTO mode, not in EXPLICIT mode.If a nested FOR XML query specifies the TYPE directive, the query result is of When you specify XMLSCHEMA in a FOR XML query, you receive both a schema and XML data, the query result. You can optionally specify a target namespace when the XMLSCHEMA option is added in the FOR XML clause.
This generates an error.However, because it is acceptable to have two elements that have the same name, you can eliminate the problem by adding the ELEMENTS directive:This is the result. The query also specifies the XMLSCHEMA directive.
This generates two sibling elements that have the same name and that are both children of the <
Therefore, the resulting rowset will have two columns with same name.In the following query, both subelements are nonkey columns of the same type and can be NULL.This is the corresponding XML generated. This is the result:In FOR XML, the same name is sometimes used to indicate different properties, attributes. Therefore, an inline XSD schema is returned.
For example, if you query the resulting XML, the change in target namespace will require that you update your query. For example, the following FOR XML query returns contact information from the Because the query specifies the ELEMENTS directive, the resulting XML is element-centric. The resulting XML will include the namespace you provided and will remain the same, regardless of how many times you run the query.In order to discuss the details of the XSD schema structure generated for the query result, the entity element has to first be describedAn entity element in the XML data returned by FOR XML query is an element that is generated from a table and not from a column.
For example, the following query retrieves ListPrice and DealerPrice values of products, but the query specifies the same alias, Price, for these two columns.
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