Upgrading from or Re-Installing a Previous Version of the SAS Data Quality Accelerator

If you are upgrading from an earlier version of the SAS Data Quality Accelerator for Teradata or reinstalling SAS Data Quality Accelerator 2.7 for Teradata, you must remove the current set of data quality stored procedures from the Teradata database before creating new ones. These steps must be performed before removing or re-installing the SAS in-database deployment package for Teradata (SAS Embedded Process).

To remove SAS Data Quality Accelerator 2.6 for Teradata or earlier, follow these steps:

SAS Data Quality Accelerator provides the dq_uninstall.sh shell script for removing the data quality stored procedures from the Teradata database. Run the dq_uninstall.sh script. For instructions, see Removing the Data Quality Stored Procedures from the Database.
Remove the SAS Embedded Process following the steps in Upgrading from or Reinstalling a Previous Version.

To remove SAS Data Quality Accelerator 2.7 for Teradata, follow these steps:

Run dq_uninstall.sh to remove the stored procedures, if you’ve already created them.
Run the following commands to first locate and then remove the SAS Data Quality Accelerator package from the Teradata database:
```
rpm –q –a | grep sepdqacctera
rpm -e package-name
```
Specify the output of the rpm -q -a command as the package-name. These commands remove the SAS Data Quality Accelerator binaries and shell scripts from the Teradata database.
(Optional) Remove the SAS Embedded Process following the steps in Upgrading from or Reinstalling a Previous Version.

It is not necessary to remove the QKB when upgrading or re-installing software. QKB deployment steps automatically overwrite an older version of the QKB when you install a new one.