Database Connection Parameters

The connection parameters in the Database Connection dialog vary depending on the target server you select. The variable connection parameters in erwin® Data Modeler are:

SQL Server
Connection Type

Specifies the type of connection you want to use. Select Use Native Connection to connect using the API provided by the SQL Server Native client software. Select Use ODBC Data to connect using the ODBC data source that you have defined. Select Use JDBC Connection to connect using JDBC.

Server

Specifies the name of the server where the database is installed.

Database

Specifies the name of the database that you want to connect to.

Use Encrypted Connection

Indicates that the SQL Server connection that is being established is encrypted to guarantee privacy.

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.

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.

Instance

Specifies the JDBC instance to which you want to connect.

Connection String

Specifies the connection string based on your JDBC instance and SQL Server database name in the following format:

jdbc:sqlserver://<servername>:1433;instanceName=MSSQLSERVER;databaseName=<SqlDBname>

For example, jdbc:sqlserver://localhost:1433;instanceName=MSSQLSERVER;databaseName=SqlDB

SQL Azure
Connection Type

Specifies the type of connection you want to use. Select Use Native Connection to connect using the API provided by the SQL Server Native client software. Select Use ODBC Data to connect using the ODBC data source that you have defined. Select Use JDBC Connection to connect using JDBC.

Server

Specifies the name of the server where the database is installed.

Note: You may need to append the SQL Azure server name to the login in the connection string using the <login>@<server> notation. If you do, separate the login and the SQL Azure server name with the at (@) symbol. For more information, see Connecting to SQL Azure.

Database

Specifies the name of the database that you want to connect to.

Use Encrypted Connection

Indicates that the SQL Server connection that is being established is encrypted to guarantee privacy.

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.

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.

Instance

Specifies the JDBC instance to which you want to connect.

Connection String

Specifies the connection string based on your JDBC instance and SQL Server database name in the following format:

jdbc:sqlserver://<servername>:<port>;database=<Databasename>
For example, jdbc:sqlserver://localhost:1433;databaseName=SqlDB

SAP ASE
Connection Method

Specifies the type of connection you want to use. Select Use Native Connection to connect using the API provided by the SQL Server Native client software. Select Use JDBC Connection to connect using JDBC.

Server

Specifies the name of the server where the database is installed.

Database

Specifies the name of the database that you want to connect to.

Connection String

Specifies the connection string based on your JDBC instance and SAP ASE database name.

SAP IQ
Server

Specifies the name of the server where the database is installed.

Database

Specifies the name of the database that you want to connect to.

Oracle
Connection String

Specifies the connection string (TNSNames entry).

Connect as SYSDBA

Specifies that you want to connect to Oracle as SYSDBA. Select the check box.

ODBC/Generic, Db2 LUW, Hive, Informix, Db2 for i, MySQL, Netezza, PostgreSQL, Progress, Redshift, SAS, and Teradata
Metastore Database

Specifies the relational database that stores the metadata for Hive tables and partitions in a relational database. This parameter is specific to Hive.

Note: Ensure that you install the drivers that correspond to the Metastore Database that you select.

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.

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.

Note: For FE or Alter Script process, on the Hive Connection dialog, always set the Metastore Database to Default and the ODBC Data Source to relevant Hive connection driver.

Db2/zOS, Db2 LUW
Alternate Catalog

Specifies the name of the alternate catalog that you want to use for the connection. If you leave this value empty, the application connects to the system catalog. If necessary, consider connecting to the alternate catalog for faster reverse engineering.

MariaDB

You can connect to a MariaDB database using Generic ODBC driver. The connection parameters are as follows:

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.

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.

Database

Specifies the name of the database that you want to connect to.

Snowflake

You can connect to a Snowflake database using Generic ODBC driver or a JDBC driver. Based on your selection under Connection Method, the connection parameters are as follows:

ODBC Generic

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.

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.

JDBC

Connection String

Specifies the connection string based on your JDBC instance and Snowflake database name. For example, jdbc:snowflake://<account_name>.snowflakecomputing.com/

Connection String is a mandatory parameter.

Database

Specifies the name of the database that you want to connect to.

Database is a mandatory parameter.

Warehouse

Specifies the name of the warehouse that you want to connect to.

Warehouse is a mandatory parameter.

Role

Specifies the role that you want to use to connect to the database.

Role is a mandatory parameter.

Schema

Specifies the name of the schema that you want to connect to.

The Parameters/Value Options in erwin® Data Modeler Workgroup Edition are:

SQL Server and SAP ASE:

Server

Enter the server name.

Database

Enter the name of the database.

Oracle:

Connection String

Enter the connection string (TNSNames entry).