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Welcome to OS MasterMap Load Summary

The Snowflake Software "GO Loader OS Step by Step" is the best way to guide a user of GO Loader through the operations required for working with OS MasterMap. This document is designed to be used in conjunction with the Cookbook. It contains a simple summary of the processes required for loading OS MasterMap Initial Supply and Change-Only-Update (COU) data. It assumes that the "GO Loader User Guide" and/or the Cookbook have already been used to create and save a GO Loader project ready for use.

Initial Load Summary

 
 After running the following processes, the datavase will be loaded with OS MasterMap Initial data supply and is ready for use.
 

GO Loader

Option

Action

Create Tables

"Create All Tables" button

Empty tables created in database

Load Files                              

"Select File" button                           

Select list of OS MasterMap initial data

Load Files

"Load Files as COU" checkbox

Un-check checkbox

Load Files

"Reset Session" button

Only required when using archiving with Session dates or User dates.

Resulting error if these dates are used

Load Files

"Load Files" button

Loads initial data into empty tables

Create Indices                       

"Clear Selection" selection shortcut                       

Removes any selections in list

Create Indices                       

"Indices for duplicate removal" selection shortcut              

Selects just the indices required for duplicate removal

Create Indices                       

"Create selected indices" button            

Creates just the indices required for duplicate removal

Load Files

"Remove Duplicates" button

                   

Runs the remove duplicates process on initial data load.

Only required for Geographically Chunked (GC) data, not for Non-Geographically Chunked (NGC) data.

Create Indices                       

"Invert Selection" selection shortcut              

Selects remaining indices (all apart from indices for duplicate removal)

Create Indices                       

"Create selected indices" button           

Creates remaining indices (Could just "Create all Indices" button and ignore warnings)

Change Only Update (COU) Load Summary

After running the following processes, Oracle will be updated with OSMM COU data and is ready for use.
 

GO Loader Tab 

Option

Action

Create Indices                       

"Clear Selection" selection shortcut                       

Removes any selections in list

Create Indices                       

"Spatial Indices" selection shortcut                        

Selects just the spatial indices

Create Indices                       

"Drop selected indices" button               

Drops just the spatial indices

Load Files

"Load Files as COU" checkbox

Check the checkbox

Load Files

"Reset Session" button

Resets session information concerning what COU has been loaded. When using archiving with User dates, a date entry box will be displayed.

Reset Session must be used at the start of a COU session, and never part way through. A session is as many separate loads you make for an entire COU order.

Load Files

"Select File" button                                   

Select list of OSMM COU data

Load Files

"Load Files" button                                   

Loads COU data
 

Create Indices                       

"Create selected indices"  button           

Re-Creates Spatial Indices (Could just "Create all Indices" button and ignore warnings)

 

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