OpenEdge Data Management: DataServer for Microsoft SQL Server

RDBMS stored procedure basics
RDBMS stored procedure basics
In the OpenEdge environment, you can think of a stored procedure definition as having
two basic, interrelated parts:
• Execution controls to run and close a store procedure — Comprises the
information needed to execute a stored procedure request against the MS S data
source. At a minimum, all stored procedures discussed in this guide are
assessable using the RUN STORED-PROCEDURE statement.
• Language elements that enable access to specific data results — Qualifies
the retrieved data, or result sets, that the stored procedure’s execution returns.
Various keywords, phrases, statements, and syntax elements support different
retrieval options for stored procedure output. This part of the stored procedure
implementation reflects your analysis of your data needs; based on this analysis,
you determine the additional syntax elements you need to define the output
elements and data results you want retrieved.
Table 20 identifies and briefly introduces the elements that comprise a stored
procedure definition; each of these elements is also more fully discussed later in this
chapter.
Table 20: Stored procedure language elements
ABL language element Description
RUN STORED–PROCEDURE statement Executes a stored procedure
PROC–HANDLE phrase Allows you to specify a handle to
identify a stored procedure
PROC–STATUS phrase Reads the return value
LOAD-RESULT-INTO phrase Allows data from a result set that is
returned for a foreign data source to be
put into one or more temp-tables
PARAM phrase Identifies run-time parameters to be
passed to and/or from the stored
procedure
CLOSE STORED–PROCEDURE statement Enables the values to be retrieved
from the output parameters that you
defined for the stored procedure,
finalizes result sets data processing,
and tells OpenEdge that the stored
procedure has ended
Note: You can substitute the abbreviations RUN STORED–PROC and CLOSE
STORED–PROC for the full names RUN STORED–PROCEDURE and CLOSE
STORED–PROCEDURE, respectively. The remainder of this guide generally uses
the abbreviated form.
See the “Run Stored-Procedure details” section on page 124 for more details about the
reference entries presented in Table 20.
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