Reverse Engineering Options for Snowflake

The following are the reverse engineering options for Snowflake database supported in erwin DM.

Connection

Parameter	Description	Additional Information
Connection Method	Specifies the type of connection you want to use. Select JDBC to connect using JDBC. Or select ODBC to connect using the ODBC data source that you have defined.
ODBC Data Source	Specifies the data source to which you want to connect. The drop-down list displays the data sources that are defined on your computer.	This option is available when Connection Method is set to ODBC.
Invoke ODBC Administrator	Specifies whether you want to start the ODBC Administrator software and display the Select Data Source dialog. You can then select a previously defined data source or create a data source.	This option is available when Connection Method is set to ODBC.
Connection String	Specifies the connection string based on your JDBC instance and Snowflake database name	This option is available when Connection Method is set to JDBC. For example: jdbc:snowflake://<account_name>.snowflakecomputing.com/
Database	Specifies the name of the database that you want to connect to	This option is available when Connection Method is set to JDBC.
Warehouse	Specifies the name of the warehouse that you want to connect to	This option is available when Connection Method is set to JDBC.
Role	Specifies the role that you want to use to connect to the database	This option is available when Connection Method is set to JDBC.
Schema	Specifies the name of the schema that you want to connect to	This option is available when Connection Method is set to JDBC. Ensure that, you specify the schema name in this field to retrieve all database objects and properties during a reverse engineering process.
Authentication URL	Specifies the authentication URL	This option is available when Connection Method is set to JDBC. Set the value as EXTERNALBROWSER when you connect using AzureAD.
Private Key File (For Key-Pair Auth)	Specifies the path to private key file for key-pair authentication.	For example: C:\Users\<User>\Documents\Keys\rsa_key.p8 This option is available when Connection Method is set to JDBC. Ensure that you generate a public key and private key for using key pair authentication. To generate key, refer to the Snowflake Key-Pair Authentication topic.
Private Key File Password (For Key-Pair Auth)	Specifies the path to private key pass phrase file for key-pair authentication	This option is available when Connection Method is set to JDBC.

Option Sets

Parameter

Description

Additional Information

Option Set

Specifies the option set template for reverse engineering

Open: Use this option to open a saved XML option set file.

Save: Use this option to save the configured option set.

Save As: Use this option to save an option set either in the model or in the XML format at some external location.

Delete: Use this option to delete an option set.

Specifies the objects to be reverse engineered according to the selected option set. You can edit this list.

Detailed Options

Parameter	Description	Additional Information
Glossary CSV File	Specifies the naming standard glossary file in the .CSV format
System Objects	Specifies whether to reverse engineer system objects and user tables, or only user tables
Tables/Views Owned By	Specifies tables that are reverse engineered based on the ownership	All: Indicates that all the tables are reverse engineered regardless of the owner Current User: Indicates that only those tables that are owned by the current user are reverse engineered Owners (comma separated): Indicates that only the tables owned by the users specified here are reverse engineered. Enter the usernames in capital letters.
Table Filter (comma separated)	Specifies the tables that you want to set as filter criteria. To specify multiple tables, use a comma-separated list.	For exact matches, mention table names in upper case inside double quotes(for example, "TABLE1"). To use wild cards, mention table names without double quotes (for example, TABLE1).
Infer	Specifies whether you want to infer primary keys or relationships, or both	Primary Keys: Indicates that primary key columns are inferred for the tables that are based on defined indexes Relations: Indicates that the relationships between tables based on either primary key column names or defined indexes are inferred. Select this option and then specify whether to use primary key column names or defined indexes. The following options are available only when Infer is set to Relations. Indexes: Indicates that the relationships from the table indexes are inferred. Relationships are inferred from table indexes only if the primary key columns of the parent table are part of the index in the child table. Names: Indicates that the relationships from the primary key column names are inferred. Relationships are inferred from columns names only if all of the primary key columns of the parent are in the child table.
Case Conversion of Physical Names	Specifies how the case conversion of physical names is handled	None: Indicates that the same case is preserved as it appears in the script file lower: Indicates that the names are converted to lower case UPPER: Indicates that the names are converted to upper case Force: Indicates whether the physical name property of all the logical/physical models is overridden. If this option is not enabled, all logical and physical names are set to the same value after the process completes. If this option is enabled, the logical/physical link is broken between the logical and physical name.
Case Conversion of Logical Names	Specifies how the case conversion of logical names is handled	None: Indicates that the same case is preserved as it appears in the script file lower: Indicates that the names are converted to lower case UPPER: Indicates that the names are converted to upper case Mixed: Indicates that the mixed-case logical names are preserved
Include Generated Triggers	Specifies whether erwin-generated triggers are loaded during the reverse engineer process

Scheduler

Parameter	Description	Additional Information
Model	Specifies the location and name of the reverse engineered model	For example: C:\Scheduler\<Model Name>.erwin When you schedule a job on a remote server, ensure the model path is same for remote and local server.
Mart Folder	Specifies the location or library in your mart where the reverse engineered model is saved	To use this option, ensure that you are connected to a mart. For more information, refer to the Connecting to Mart topic.
Complete Compare	Specifies whether the Complete Compare (CC) process should run while reverse engineering
Output File	Specifies the location of the CC output file generated
File	Specifies that the target model location is on the local system
Mart	Specifies that the target model location is in the mart
Using Latest Version	Specifies whether the target model is the latest version of the model in the mart	This option is available only when Mart is selected.
Save To Mart	Specifies whether the reverse engineered model is saved to the mart	This option is available only when Using Latest Version is selected.
Target Model	Specifies the location of the target model for CC
Option Set	Specifies the option set that is used for CC	Advanced Default Option Set: Indicates that all erwin DM metadata is included. CC works slowest with this option. Speed Option Set: Indicates that only the essential metadata is included. CC works the fastest with this option set. Standard Default Option Set: Indicates that standard metadata is included. CC works fast with this option set compared to the Advanced option set.

Parameter	Description	Additional Information
Reverse Engineer From	Specifies whether you want to reverse engineer from a script or database	Database: Indicates that the model is reverse engineered from database Save: Indicates that the model is reverse engineered from a script
Schema	Specifies the script file location	This option is available when Script File option is selected

Parameter	Description	Additional Information
Available Schemas	Displays the available schemas
Selected Schemas	Displays the selected schemas

Parameter	Description	Additional Information
Available Tables	Specifies the list of available tables
Selected Tables	Specifies the list of selected tables for reverse engineering

Parameter	Description	Additional Information
Available Views	Specifies the list of available view objects
Selected Views	Specifies the list of selected views objects for reverse engineering

Parameter	Description	Additional Information
Available Materialized Views	Specifies the list of available materialized view objects
Selected Materialized Views	Specifies the list of selected materialized views objects for reverse engineering