1. A method for updating a database associated with a data-based application based on data stored in a document associated with a document application, comprising: receiving a copy of connection information previously embedded in the document, wherein the connection information includes at least a schema identifier and data set identification information, the data set identification information identifying a user-selected dataset within the database into which data was previously transferred from user-selected fields of the document or out of which data was previously transferred into the user-selected fields of the document as part of an initial data transfer process; identifying a schema definition based on the schema identifier; identifying as a target data set the user-selected dataset within the database identified by the data set identification information; receiving a structured data document that includes data entities extracted from the document; extracting the data entities from the structured data document based on the schema definition; and updating the target data set based on the extracted data entities.
1. A method for updating a database associated with a data-based application based on data stored in a document associated with a document application, comprising: receiving a copy of connection information previously embedded in the document, wherein the connection information includes at least a schema identifier and data set identification information, the data set identification information identifying a user-selected dataset within the database into which data was previously transferred from user-selected fields of the document or out of which data was previously transferred into the user-selected fields of the document as part of an initial data transfer process; identifying a schema definition based on the schema identifier; identifying as a target data set the user-selected dataset within the database identified by the data set identification information; receiving a structured data document that includes data entities extracted from the document; extracting the data entities from the structured data document based on the schema definition; and updating the target data set based on the extracted data entities. 2. The method of claim 1 wherein the document associated with the document application comprises a spreadsheet associated with a spreadsheet application.