PRB: ODS Does Not Support Bulk Load

  - Microsoft SQL Server version 4.2 for OS/2

SYMPTOMS

Applications built using the Open Data Services API cannot identify and pass to SQL Server requests to bulk load data. This means that BCP.EXE and the DB-Library bulk copy special library routines cannot be used to load data into a SQL Server through an intermediate ODS layer. However, BCP and the bulk copy libraries can be used to extract data from SQL Server.

CAUSE

DB-Library clients communicate to SQL Server and ODS applications through a protocol known as Tabular Data Stream (TDS). TDS makes use of a number of message types, which roughly correspond to ODS events. For example, the dbsqlexec() function generates a message that is recognized by Open Data Services as a srv_language event. The bulk copy special library routines make use of another message type which is currently mapped by Open Data Services to a srv_language event.

WORKAROUND

Because the ODS API currently provides no functions to extract the data from the "bulk insert" message, the data cannot be correctly extracted and subsequently forwarded to SQL Server.