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4.3.OpenLink .NET Data Providers Connect String Attributes

This section details the Connect string attributes an ADO.Net application can pass to the OpenLink .Net Data Providers when attempting a connection to a remote database.

4.3.1.Managed Generic Multi-Tier .NET Data Provider (OpenLink.Data.GenericClient)

The tables below provides a list of the Connect String Attributes for the Data Provider:

Table4.3.Connection String Keywords for the Generic .Net Provider

Keyword Default Value
Used ID or UID [""]
Password or PWD [""]
Initial Catalog or DATABASE [""]
Connect Timeout or Connection Timeout [15]
Persist Security Info [False]
Connection Lifetime [0]
Min Pool Size [0]
Max Pool Size [100]
Persist Security Info [False]
Pooling [True]
Charset ["]
Host [localhost]
Port [5000]
Read Only or ReadOnly [False]
Fetch Buffer Size or FBS or FetchBufferSize [100]
Server Type or ServerType or SVT [""]
Defer Long Fetch or DLF or DeferLongFetch [False]
Encrypted [False]
Options [""]
Defer Long Fetch or DLF or DeferLongFetch [False]
UNICODE [False]
APPLICATION ["opldotNET"]

Sample connect string :

        For Oracle 9 :
                "Host=localhost;Port=5000;SVT=Oracle 9.x;DATABASE=ORCL;UID=scott;PWD=tiger;
        For SQLServer2000:
                "Host=localhost;Port=5000;SVT=SQLServer 2000;DATABASE=Northwind;UID=sa;PWD=;

4.3.2.Managed Microsoft SQLServer .NET Data Provider (OpenLink.Data.SQLServer)

The tables below provides a list of the Connect String Attributes for the Data Provider:

Table4.4.Connection String Keywords for the Microsoft SQLServer .Net Provider

Keyword Default Value
Used ID or UID [""]
Password or PWD [""]
Initial Catalog or DATABASE [""]
Connect Timeout or Connection Timeout [15]
Persist Security Info [False]
Connection Lifetime [0]
Min Pool Size [0]
Max Pool Size [100]
Persist Security Info [False]
Pooling [True]
Charset ["]
Host [localhost]
Port [1433]
Packet Size or PktSize [8192] for SQLServer7/2000
SrvName or Server or Server Na [""]
Server Type or ServerType or SVT ["SQLSERVER6"]
WorkstationId or Workstation Id ["localhost]
UNICODE [False]
APPLICATION ["opldotNET"]
UseBrowseMode ["false"]

The following Keyword default values change for the SQLServer Provider :

        UseBrowseMode=false - the SQLParser is used for parsing Select queries and getting the accurate information
        for following schema table columns (returned by IDataReader.GetSchemaTable).
        UseBrowseMode=true -  the "SET no_browsetable ON" comand is used with Select queries for getting the names
        and for accurate information for following schema table columns (returned by IDataReader.GetSchemaTable).
         Note that the MS SQLServer ADO.NET provider uses the "SET no_browsetable ON" mode.
        The property SVT or ServerType supports the following values:
        "SQLServer 7" or "SQLServer7" (TDS7 protocol is used)
        "SQLServer 2000" or "SQLServer2000" (TDS8 protocol is used)
        "SQLServer 6"  or "SQLServer 6.x"  or "SQLServer"  or "SQLServer6"(TDS4.2 protocol is used)
        Any another values (TDS4.2 protocol is used)
        Sample connection string:
                "SVT=SQLServer 2000;DATABASE=Northwind;Host=localhost;Port=1433UID=sa;PWD=;

4.3.3.Managed Sybase .NET Data Provider (OpenLink.Data.Sybase)

The tables below provides a list of the Connect String Attributes for the Data Provider:

Table4.5.Connection String Keywords for the Sybase .Net Provider

Keyword Default Value
Used ID or UID [""]
Password or PWD [""]
Initial Catalog or DATABASE [""]
Connect Timeout or Connection Timeout [15]
Persist Security Info [False]
Connection Lifetime [0]
Min Pool Size [0]
Max Pool Size [100]
Persist Security Info [False]
Pooling [True]
Charset ["]
Host [localhost]
Port [4100]
Packet Size or PktSize [512]
SrvName or Server or Server Na [""]
Server Type or ServerType or SVT ["SYBASE4"]
WorkstationId or Workstation Id ["localhost]
UNICODE [False]
APPLICATION ["opldotNET"]

The following Keyword default values change for the SQLServer Provider :

        The property SVT or ServerType supports the following values:
                "Sybase 10"  or "Sybase10" (TDS5 protocol is used)
                "Sybase 11"  or "Sybase11" (TDS5 protocol is used)
                "Sybase 12"  or "Sybase12"  or "Sybase12.x" (TDS5 protocol is used)
        Any another values (TDS4.2 protocol is used)
        Sample connection string:
                "SVT=Sybase 12;DATABASE=pubs2;Host=localhost;Port=4100;UID=sa;PWD=;

4.3.4.Unmanaged .NET Data Provider (OpenLink.Data.OdbcClient)

The tables below provides a list of the Connect String Attributes for the Unmanaged (ODBC based) Data Provider:

Table4.6.Connection String Keywords

Keyword Default Value
DSN [""]
UID [""]
PWD [""] 

   Sample connect string:
        - Oracle ODBC DSN
           "DSN=Oracle;UID=scott;PWD=tiger"
        where 'Oracle' is the name of a valid ODBC DSN for connecting to an Oracle Database
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