OpenEdge Data Management: DataServer for Microsoft SQL Server

Loading result sets into temp-tables
Interfacing with RDBMS stored procedures
Enhancements implemented through changes to the RUN STORED-PROC statement allow you to
retrieve result sets from a foreign data source and load each result set, for which a temp-table
handle is defined, into its own temp-table. The LOAD_RESULT-INTO function enables data
retrieved to be loaded into temp-tables where the data can then be manipulated, employing all
characteristics inherent to temp-tables. The capability to load result sets into temp-tables is not
limited by the parsing requirements associated with the proc-text-buffer nor the database
dependencies associated with views.
Temp-tables can provide data management capabilities associated with ABL directly to the
result sets of a stored procedure, but completely independent of the foreign data source from
which it was populated and/or derived. Temporary tables are effectively database tables in
which OpenEdge stores data temporarily. Because temp-tables have the same support features
that actual OpenEdge databases use, you can take advantage of almost all the OpenEdge
database features that do not require data persistence and multi-user access. For example, you
can define indexes for fields in the temp-table. For more information about temp-tables, see
OpenEdge Getting Started: ABL Essentials.
Example 3–13 shows how to use the RUN STORED-PROC statement with the LOAD-RESULT-INTO
phrase with a single dynamic temp-table. It highlights the coding techniques discussed in the
“Run Stored-Proc statement execution using the send-sql-statement option” section on
page 3–11 and it introduces the dynamic temp-table topic further discussed in this section.
DEFINE VARIABLE bhCustomer AS HANDLE NO-UNDO.
DEFINE VARIABLE hBrowse AS HANDLE NO-UNDO.
DEFINE VARIABLE hQuery AS HANDLE NO-UNDO.
DEFINE VARIABLE ttCustomer AS HANDLE NO-UNDO.
DEFINE FRAME BrowseFrame WITH SIZE 80 BY 10.
CREATE TEMP-TABLE ttCustomer.
RUN STORED-PROC send-sql-statement LOAD-RESULT-INTO ttCustomer
(“SELECT * from CUSTOMER”).
bhCustomer = ttCustomer:DEFAULT-BUFFER-HANDLE.
CREATE QUERY hQuery.
hQuery:SET-BUFFERS (bhCustomer).
DISPLAY ttCustomer:Name.
hQuery:QUERY-PREPARE(“FOR EACH” + ttCustomer:Name).
hQuery:QUERY-OPEN.
CREATE BROWSE hBrowse ASSIGN
ROW = 1
COL = 1
WIDTH = 79
DOWN = 10
FRAME = FRAME BrowseFrame:HANDLE
QUERY = hQuery
SENSITIVE = TRUE
SEPARATORS = TRUE
ROW-MARKERS = FALSE
VISIBLE = TRUE.
hBrowse:ADD-COLUMNS-FROM(bhCustomer).
ENABLE ALL WITH FRAME BrowseFrame.
WAIT-FOR CLOSE OF CURRENT-WINDOW.
Example 3–13: RUN STORED-PROC statement with the LOAD-RESULT-INTO
phrase
3–21