AI-generated Key Takeaways
- 
          BigQueryDataSourceSpec allows access to existing BigQuery data source specifications within SpreadsheetApp. 
- 
          You can create a new data source specification using SpreadsheetApp.newDataSourceSpec(). 
- 
          The methods available include retrieving dataset ID, parameters, project ID, raw query, table ID, table project ID, and data source type. 
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          The copy() method creates a DataSourceSpecBuilder based on the existing data source's settings. 
Access the existing BigQuery data source specification. To create a new data source
specification, use Spreadsheet.
Methods
| Method | Return type | Brief description | 
|---|---|---|
| copy() | Data | Creates a Databased on this data source's settings. | 
| get | String | Gets the BigQuery dataset ID. | 
| get | Data | Gets the parameters of the data source. | 
| get | String | Gets the billing project ID. | 
| get | String | Gets the raw query string. | 
| get | String | Gets the BigQuery table ID. | 
| get | String | Gets the BigQuery project ID for the table. | 
| get | Data | Gets the type of the data source. | 
Detailed documentation
copy()
Creates a Data based on this data source's settings.
// TODO(developer): Replace the URL with your own. const ss = SpreadsheetApp.openByUrl( 'https://docs.google.com/spreadsheets/d/abc123456/edit', ); const spec = ss.getDataSources()[0].getSpec(); const newSpec = spec.copy();
Return
Data — The builder.
getDatasetId()  
Gets the BigQuery dataset ID.
Return
String — The dataset ID, or an empty string if the data source spec is defined by a raw query.
getParameters() 
Gets the parameters of the data source.
// TODO(developer): Replace the URL with your own. const ss = SpreadsheetApp.openByUrl( 'https://docs.google.com/spreadsheets/d/abc123456/edit', ); const spec = ss.getDataSources()[0].getSpec(); const parameters = spec.getParameters();
This method is only available for BigQuery data sources.
Return
Data — The parameter list.
getProjectId()  
Gets the billing project ID.
Return
String — The project ID.
getRawQuery()  
Gets the raw query string.
Return
String — The raw query string.
getTableId()  
Gets the BigQuery table ID.
Return
String — The table ID, or an empty string if the data source spec is defined by a raw query.
getTableProjectId()   
Gets the BigQuery project ID for the table.
Return
String — The table project ID, or an empty string if the data source spec is defined by a raw
    query.
getType() 
Gets the type of the data source.
// TODO(developer): Replace the URL with your own. const ss = SpreadsheetApp.openByUrl( 'https://docs.google.com/spreadsheets/d/abc123456/edit', ); const spec = ss.getDataSources()[0].getSpec(); const type = spec.getType();
Return
Data — The data source type.