OpenEdge Data Management: DataServer for Microsoft SQL Server

Chapter 3: RDBMS Stored Procedure Details
Starting in OpenEdge Release 10.1B, the default external representation of ROWID
enables the MS SQL Server DataServer to use a 64-bit integer value for ROWID. Also,
before discussing ROWID as it relates to the RUN STORED-PROC statement, it is important
to understand an important property of the OpenEdge ROWID. The “ROWID—Standard
ABL behavior” section on page 154 presents this information.
ROWID—Standard ABL behavior
The ROWID value of a temp-table buffer will be different than the ROWID value of a record
BUFFER even if the underlying data is identical. This difference exists because the
ROWID function relies on the record buffer name. Example 24 shows the standard,
expected ABL behavior.
DEFINE VARIABLE rid-1 AS ROWID NO-UNDO.
DEFINE VARIABLE rid-2 AS ROWID NO-UNDO.
DEFINE VARIABLE ttHandle AS HANDLE NO-UNDO EXTENT 1.
DEFINE TEMP-TABLE ttCustomer LIKE Sports2000.Customer
FIELD tRecid AS INTEGER
FIELD tRECID_ident AS INTEGER.
ttHandle[1] = TEMP-TABLE ttCustomer:HANDLE.
FIND FIRST Customer WHERE Customer.CustNum = 1 NO-LOCK.
rid-1 = ROWID(Customer).
RUN STORED-PROC send-sql-statement
LOAD-RESULT-INTO ttHandle (“select * from customer where custnum = 1”).
rid-2 = ROWID(ttCustomer).
IF rid-1 NE rid-2 THEN
MESSAGE “The same record but different ROWID’s”.
Example 24: Expected ABL behavior—ROWID value of a temp-table buffer
The following sections illustrate the differences between the ROWID value of a
temp-table buffer and the ROWID value of a record BUFFER so that you can best
understand, program for, and leverage the use of the ROWID function with the
LOAD-RESULT-INTO clause of the RUN STORED-PROCEDURE command.
Using ROWID with RUN STORED-PROCEDURE and
LOAD-RESULT-INTO
In the previous section, Example 24 assumes you migrated your database to MS SQL
Server using the Create RECID Field option, as discussed in the “ROWID
characteristics” section on page 153. Example 3-24 and all subsequent examples in
this section show ROWID as being represented by the 8-byte integer value of the
PROGRESS_RECID column as opposed to some other unique single-component index
designated in your database to be the PROGRESS_RECID.
Note: If you used a different single-component index to load the ROWID of a
temp-table, you would need to map the column accordingly, just as the
example maps PROGRESS_RECID.
154 OpenEdge Data Management: DataServer for Microsoft SQL Server