Library: Database access (OMDB) Import: omdb.xmd

Return type: dbDatabase Returns: A db.database OMX component

Declaration

define external db.database function db.open-sedna
            value string url
     dbname value string database-name

  or

  define external db.database function db.open-sedna
            value string url
     dbname value string database-name
       user value string user-name
   password value string password

Argument definitions

url

is the name of the machine and the port number that Sedna database is running on. If the port is omitted, then port number 5050 is used by default.

database-name

is the name of the Oracle database to which you want to connect.

user-name

is the user name that will be supplied to the database when the connection is made.

password

is the password that will be supplied to the database when the connection is made.

Use db.open-sedna to create a connection to a Sedna XML native database. See http://www.modis.ispras.ru/Development/sedna.htm for more details on how to get Sedna. The function returns a db.database OMX component.

Requirements

user-name and password are optional with default values of an empty string. Check what access requirements are needed for the specified database.

Usage Notes

You must have declared an OMX db.database variable (either global or local) to use a database connection in other OMDB functions.

This function will throw external exception OMDB501 if there are any Sedna errors. The exception will include any error numbers and descriptive text generated by Sedna. Consult the Sedna documentation for further details on the error condition.

Example

Create a connection to a Sedna database named "XMLDatabaseDemo" using username "charley" and password "chaplin" on machine named "rhine". This connection can be reused in other OMDB functions.

    import "omdb.xmd" prefixed by db.
  
    process
       local db.database my-database
                    .  .  .
       set my-database to db.open-sedna "rhine" dbname "XMLDatabaseDemo" user
  "charley" password "chaplin"

Related Concepts    Using the OMDB library

Other Library Functions    db.advance-recordset    db.close    db.commit    db.compile-statement    db.database    db.delete    db.discard    db.document-writer-sedna    db.execute    db.execute-in    db.field    db.insert    db.is-null    db.move-dynamic-record    db.move-record    db.omdb-version    db.omdb-version-oci10g    db.omdb-version-oci11g    db.omdb-version-oci8i    db.omdb-version-oci9i    db.omdb-version-odbc    db.omdb-version-sedna    db.open-oci10g    db.open-oci11g    db.open-oci8i    db.open-oci9i    db.open-odbc    db.open-procedure    db.open-sedna    db.open-table    db.prepare    db.procedure    db.query    db.reader    db.record-exists    db.rollback    db.set-transaction-type    db.statement    db.streaming-execute    db.table    db.update    db.writer

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