Data Source Name
 Each
data source must be named uniquely and this name should be fairly descriptive.
Note that this name is NOT the same as the physical file name of a Generic
or CLOA only data source.
The data source name is used in the following places:
- In a Generic data source to uniquely identify an individual data source
and dictionary. See the Sample Data Source for more details.
- In the DSEDIT list of existing USER and SYSTEM data sources. See Edit
an Existing Data Source.
- In the connection string of an ODBC application, when using a USER
or SYSTEM data source (DSN=datasourcename). See the Omnidex documentation
for more details about ODBC connection string arguments. Note that Generic
data sources are specified in the connection string by passing the location
and file name of the physical dsn file (FILEDSN=c:\omnidex\demo\orders.dsn).
- In the Microsoft ODBC Data Source Administrator, all Omnidex data
sources are visible within this application. However, they can only
be edited with DSEDIT.
Requirements
The data source name:
- must be unique
- is limited to 30 characters
- can contain letters (a - Z) and numbers (0 - 9) and under scores
- cannot contain blanks
Recommendations
DISC recommends that the name describe something about the environment
that it will connect to.
For example, assume the data source will connect to an Oracle data base
named Sales located on a Linux server named LX1. The data source name
might look something like this:
ODX_SALES_LX1_ORA
- ODX - indicates that this is an Omnidex data
source.
- SALES - this is the name of the data base.
- LX1 - this is the name of the server.
- ORA - indicates that the data is in an Oracle
database.
Following these naming requirements and recommendations will make choosing
which data source to use a much simpler process.
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