OpenEdge Data Management: DataServer for Microsoft SQL Server

RDBMS Stored Procedure Details
3–26
Details about a dynamic temp-table in a prepared state
Example 3–14 shows multiple dynamic temp-tables in a prepared state. The temp tables, tt1
and tt2, are prepared in the code just before the RUN STORED-PROC statement is called and the
temp-tables are passed. The temp-table definition is considered prepared because of the explicit
inclusion of each field name and associated data type.
/* example - Multiple dynamic temp-tables in a prepared state*/
DEFINE VARIABLE tt1 AS HANDLE NO-UNDO.
DEFINE VARIABLE tt2 AS HANDLE NO-UNDO.
DEFINE VARIABLE tt-array AS HANDLE NO-UNDO EXTENT 2.
CREATE TEMP-TABLE tt1.
tt1:ADD-NEW-FIELD(“custnum”, “integer”).
tt1:ADD-NEW-FIELD(“name”, “character”).
/*no more fields will be added */
tt1:TEMP-TABLE-PREPARE (“ordx1”).
CREATE TEMP-TABLE tt2.
tt2:ADD-NEW-FIELD(“ordernum”, “integer”).
tt2:ADD-NEW-FIELD(“orderdate”, “date”).
/*no more fields will be added */
tt2:TEMP-TABLE-PREPARE (“ordx2”).
ASSIGN
tt-array[1] = tt1
tt-array[2] = tt2.
RUN STORED-PROC myproc LOAD-RESULT-INTO tt-array (INPUT 10, INPUT “order”).
Example 3–14: Multiple temp-tables in a prepared state
In the previous dynamic temp-table example, note that the temp-table definitions must match
the result set that the send-sql- statement returns. For example, the number of fields and the data
type of each field in the result must have a corresponding field defined in the temp-table that
will receive the result set. No mapping exists between the result set and the temp-table.
Therefore, the first field defined in the temp-table corresponds to the first column of the result
set and so forth.
Additional temp-table examples
This section presents more examples that show various techniques to code temp-tables.
Example 3–15 follows this initial explanation; the stored procedure myProc is comprised of two
fields—one is an integer and the other is a character, and a result set.
SELECT “myProc,” cust_num, cust_name FROM
Example 3–15: Temp-table code technique