Point – Drillhole Import – XLS/MS Access Database/ODBC
Use this tab to specify the import parameters for the point data to be imported into a Drillhole database.
Point Tab options
Point View
|
Specify the point view to import. |
(Rename)
|
Click this button to rename the selected Point sub tab. |
(Add)
|
If you have more than one Point view to import, click this button to add another Point sub tab. |
(Remove)
|
Click this button to delete the selected Point sub tab. |
Point_1
|
By default, the first point view to import will be named Point_1. Subsequent point sub tabs that are added will be named Point_2, Point_3, etc… These can be renamed using the Rename button. |
Database Fields
|
The database fields that are available for import. Select (highlight) a field to specify the Channel Type and Parameters. |
Filter Conditions
|
Click this button to open the Filter Conditions dialog. |
Channel Type |
Not imported
|
Select the Not imported radio button if you do not want the selected (highlighted) Database Field to be imported. |
Data
|
Select the Data radio button if you want the selected (highlighted) Database Field to be imported as Data. |
Hole ID
|
Select the Hole ID radio button if you want the selected (highlighted) Database Field to be imported as Hole IDs. This is a required channel. |
Depth
|
Select the Depth radio button if you want the selected (highlighted) Database Field to be imported as depth data. This is a required channel. |
Assay
|
Select the Assay radio button if you want the selected (highlighted) Database Field to be imported as assay data. |
Sample
|
Select the Sample radio button if you want the selected (highlighted) Database Field to be imported as sample data. |
Standard
|
Select the Standard radio button if you want the selected (highlighted) Database Field to be imported as standard data. |
Duplicate
|
Select the Duplicate radio button if you want the selected (highlighted) Database Field to be imported as duplicate data. |
Parameters
|
Field name
|
Specify the "Field name". This field is read-only for required channel types. |
Data type
|
Specify the "Data type". This field is read-only for required channel types. |
Data format
|
Specify the "Data format". This field is read-only for required channel types. |
Dummy
|
Specify the alpha and/or numeric characters to be used as the dummy. The default is (*). |
OK
|
Click the OK button to import the data into drillhole databases. |
Application Notes
Once all the required channels are specified, “Ready to import Point View data” will display at the bottom of the tab. OK can only be clicked once the required channels have been mapped to a database field.
Excel Database (XLS) Import
The Microsoft ADO software that we use to read and import XLS files only scans the first 20 rows or so of the data. It then makes a decision about the type of data based on what it sees (it will generally ignore the first row because it is used for titles, etc.)
If there is no data in the first 20 rows of a column, it assumes all values are type "string". This would be fine, but any actual values stored numerically are no longer picked up by the ADO software, and are reported to Oasis montaj as being "VT_NULL" type, that is, blank!
Therefore, to ensure that a numerical column in Excel is imported, there MUST be a value in the first 20 rows or so.
The numeric type entered in the wizard (e.g. string/float) controls only the type of the channel created in the database; it has no effect on whether the data will be recognized or picked up during the import.
We have tried to get around this Microsoft limitation, but with no success.
The workaround is either to re-order the original data so that there are data values in the first 20 rows, or to export to another format (example CSV) and import it that way.