Connecting to a Sybase ASE Database from UNIX
For native connectivity, install the version of Open Client appropriate for your database version. To ensure compatibility between Informatica and databases, use the appropriate database client libraries.
Install an Open Client version that is compatible with the Sybase ASE database server. You must also install the same version of Open Client on the machines hosting the Sybase ASE database and Informatica. To verify compatibility, contact Sybase.
If you want to create, restore, or upgrade a Sybase ASE repository, set allow nulls by default to TRUE at the database level. Setting this option changes the default null type of the column to null in compliance with the SQL standard.
Configuring Native Connectivity
You can configure native connectivity to a Sybase ASE database to increase performance.
The following steps provide a guideline for configuring native connectivity. For specific instructions, see the database documentation.
1. To configure connectivity to the Data Integration Service, PowerCenter Integration Service, or PowerCenter Repository Service process, log in to the machine as a user who can start the server process.
2. Set the SYBASE and PATH environment variables.
SYBASE. Set the variable to the Sybase Open Client installation directory. For example if the client is installed in the /usr/sybase directory:
Using a Bourne shell:
$ SYBASE=/usr/sybase; export SYBASE
Using a C shell:
$ setenv SYBASE /usr/sybase
PATH. To run the Sybase command line programs, set the variable to include the Sybase OCS bin directory.
Using a Bourne shell:
$ PATH=${PATH}:/usr/sybase/OCS-15_0/bin; export PATH
Using a C shell:
$ setenv PATH ${PATH}:/usr/sybase/OCS-15_0/bin
3. Set the shared library environment variable.
The Sybase Open Client software contains a number of shared library components that the Data Integration Service, PowerCenter Integration Service, and PowerCenter Repository Service processes load dynamically. Set the shared library environment variable so that the services can find the shared libraries at run time.
The shared library path must also include the installation directory of the Informatica services(server_dir).
Set the shared library environment variable based on the operating system.
The following table describes the shared library variables for each operating system.
Operating System | Variable |
|---|
Solaris | LD_LIBRARY_PATH |
Linux | LD_LIBRARY_PATH |
AIX | LIBPATH |
For example, use the following syntax for Solaris and Linux:
- - Using a Bourne shell:
$ LD_LIBRARY_PATH=${LD_LIBRARY_PATH}:$HOME/server_dir:$SYBASE/OCS-15_0/lib;$SYBASE/OCS-15_0/lib3p;$SYBASE/OCS-15_0/lib3p64; export LD_LIBRARY_PATH
- - Using a C shell:
$ setenv LD_LIBRARY_PATH ${LD_LIBRARY_PATH}:$HOME/server_dir:$SYBASE/OCS-15_0/lib;$SYBASE/OCS-15_0/lib3p;$SYBASE/OCS-15_0/lib3p64;
For AIX
- - Using a Bourne shell:
$ LIBPATH=${LIBPATH}:$HOME/server_dir:$SYBASE/OCS-15_0/lib;$SYBASE/OCS-15_0/lib3p;$SYBASE/OCS-15_0/lib3p64; export LIBPATH
- - Using a C shell:
$ setenv LIBPATH ${LIBPATH}:$HOME/server_dir:$SYBASE/OCS-15_0/lib;$SYBASE/OCS-15_0/lib3p;$SYBASE/OCS-15_0/lib3p64;
4. Edit the .cshrc or .profile to include the complete set of shell commands. Save the file and either log out and log in again, or run the source command.
Using a Bourne shell:
$ source .profile
Using a C shell:
$ source .cshrc
5. Verify the Sybase ASE server name in the Sybase interfaces file stored in the $SYBASE directory.
6. Verify that you can connect to the Sybase ASE database.
To connect to the Sybase ASE database, launch ISQL and enter the connectivity information. If you fail to connect to the database, verify that you correctly entered all of the connectivity information.
User names and database names are case sensitive.