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create external table fails on IIAS when executed inside stored procedure

on IIAS create external table fails when executed inside stored procedure.

Here is simple reproduction.

--------- execute CREATE EXTERNAL TABLE statement from command line. Statement succeeds.
[db2inst1@d2 - Db2wh ~]$ db2 "create external table '/tmp/t.txt' using (delimiter '|' remotesource 'YES') as select * from db2inst1.t limit 10"
DB20000I  The SQL command completed successfully.

--- create stored procedure with same exact statement that succeeds from command line.
[db2inst1@d2 - Db2wh ~]$ db2 -td@ -vf create.external.table.sp
create or replace procedure create_ext_table()
LANGUAGE SQL
dynamic result sets 1
P1: BEGIN
create external table '/tmp/t.txt' using (delimiter '|' remotesource 'YES') as select * from db2inst1.t limit 10;
END P1

DB20000I  The SQL command completed successfully.

--- Now execute that stored procedure. Procedure fails. -----
[db2inst1@d2 - Db2wh ~]$ db2 "call create_ext_table()"
SQL1667N  The operation failed because the operation is not supported with the
type of the specified table.  Specified table: "DB2INST1.SYSTET4284".  Table
type: "EXTERNAL".  Operation: "IN NESTED CONTEXT".  SQLSTATE=42858

  • Ricardo Pedraza
  • Jul 22 2019
  • Is a Defect
Why is it useful?
Who would benefit from this IDEA? All our customers migrating from Netezza to IIAS
How should it work?

1) This functionality should be added as it works currently for Netezza and users are migrating to IIAS.

2) Many jobs run from stored procedures but this cannot be done in IIAS.  Running it outside a SP works fine.   Need to have this functionality from inside the SP to give flexibility for path and filename during export.

3) Trying to use NFS but this is not a recommended method by IBM itself.

Idea Priority High
Priority Justification Several mgrations are in place from Netezza to IIAS, Customers are not satisfied when they loose important functionality from one system to another, having to rewrite lots of code.
Customer Name Anthem
Submitting Organization
Submitter Tags
  • Attach files
  • Admin
    Maryia Rakina commented
    29 Jul, 2019 06:29pm

    This is a known difference in Db2's external table implementation. Currently, we have no plans to solve.

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