Question

I executed this script in DB2 10.1, and after that, I do not know how to reestablish the database connection:

script.sql

--#SET TERMINATOR @
SET CURRENT SCHEMA BLOCK_DB @
CREATE PROCEDURE BLOCK_DB.A ()
BEGIN
END @
CREATE PROCEDURE BLOCK_DB.B ()
BEGIN
 CALL BLOCK_DB.A ();
END @
--#SET TERMINATOR ;
UPDATE DB CFG USING CONNECT_PROC BLOCK_DB.B;
DROP PROCEDURE BLOCK_DB.A ();
CONNECT RESET;

I executed like this

db2 -tf script.sql

After that, I tried to reconnect, but it was unsuccessful.

db2 connect to sample

DO NOT TRY THIS IN A PRODUCTION ENVIRONMENT.

Answer 1

Simply reset the value of CONNECT_PROC:

db2 "update db cfg for <db> using connect_proc ''"

You do not need to have a database connection to execute this statement. This will set CONNECT_PROC back to the default (NULL), and you’ll be able to connect to the database again.