Basic Tab
The following table and the sections below lists and explains the connection properties that are in the Basic Tab of the New Data Source Window.
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The name of the Datasource. |
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Name of the host machine or the host machine’s IP address. |
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Port number for the data source to connect with the host. The Port number for Greenplum is 5432. |
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Name or alias of the underlying data source. TDV Server uses this name to find and connect to the data source. |
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User name and password required to access the data source. |
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Flag to indicate whether pass-through login is enabled or not. |
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The degree to which transactions are isolated from data modifications made by other transactions. |
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| Authentication | Indicates the Authentication type. Choose between BASIC and KERBEROS. |
| Kerbos Server Name | Name of the Kerberos server. |
| Include Realm | This field is enabled only when KERBEROS Authentication is used. If this field is disabled, the Greenplum Database role name is the Kerberos principal name without the Kerberos realm. If it is Enabled, the Kerberos realm is not stripped from the Greenplum Database rolename. |
| Keytab File | Use to enable Kerberos security through Keytab files. Type the full path to the Keytab file. |
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This field is available only if you choose Kerberos authentication. |
Datasource Name
The name of the data source.
Data Type
string
Default Value
""
Host
Name of the host machine or the host machine’s IP address.
Data Type
string
Default Value
""
Port
The Port number
Data Type
string
Default Value
""
Database Name
Name or alias of the underlying data source. TDV Server uses this name to find and connect to the data source.
Data Type
string
Default Value
""
Login/User, Password
User name and password required to access the data source.
Data Type
string
Default Value
“”
Remarks
When the data source is used as a target for cache tables or data ship, the user must also have permission to create tables, execute DDL, and perform other required tasks. Refer to the individual data source descriptions for details.
Transaction Isolation
The degree to which transactions are isolated from data modifications made by other transactions.
Data Type
string
Default Value
NONE
Remarks
Valid values are:
| • | Read Uncommitted—Dirty reads, nonrepeatable reads, and phantom reads can occur. |
| • | Read Committed—Nonrepeatable reads and phantom reads can occur. |
| • | Repeatable Read—Only phantom reads can occur. |
| • | Serializable—Dirty reads, nonrepeatable reads, and phantom reads are prevented. |
| • | None |
Authentication
Indicates the Authentication type. Choose between BASIC and KERBEROS.
Data Type
String
Default Value
BASIC
Remarks
None
Kerbos Server Name
Name of the Kerberos server.
Data Type
String
Default Value
""
Remarks
None
Include Realm
This field is enabled only when KERBEROS Authentication is used. If this field is disabled, the Greenplum Database role name is the Kerberos principal name without the Kerberos realm. If it is Enabled, the Kerberos realm is not stripped from the Greenplum Database rolename.
Data Type
Bool
Default Value
False
Remarks
None
Keytab File
Use to enable Kerberos security through Keytab files. Type the full path to the Keytab file.
Data Type
String
Default Value
""
Reamrks
None
Service Principal Name
This field is available only if you choose Kerberos authentication.
Data Type
This field is available only if you choose Kerberos authentication.
Default Value
""
Remarks
None
Pass-through Login
Flag to indicate whether pass-through login is enabled or not.
Data Type
string
Default Value
""
Remarks
Disabled (default)—This allows automated provisioning of a connection pool. Open connection threads can be used by authorized users after the validation query verifies connection status. If pass-through login is disabled, the Save Password check box is not available.
Enabled—A new connection to the data source uses the credentials supplied by the client when data is requested from that data source for the first time. Subsequent requests by the same user reuse the existing connection. When another user attempts to connect to a data source, a new connection is created.
See “Managing Security for TDV Resources” in the TDV Administration Guide for details.