Acceessing DB2 UDB in AIX COBOL on unix

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Old 10-20-2009
Acceessing DB2 UDB in AIX COBOL on unix

Hi ,

We are migrating our database from DB2 z/os to DB2 UDB on UNIX.
and cobol on mainframes to AIX cobol on UNIX.

We have some cobol Db2 programs that are accessing different Databases
how do we code such type of programs in AIX cobol.

Do we need to Establish connection for accessing Each Tables


Table1 under Database1
Table2 under Database2

While Accessing These tables
do we need to connect to

connect to Database1

Exec SQL
select from table1

connect to Database2

Exec SQL
select from table2

Is this correct way for programming.
Is there any alternate approach for doing this.

and how do we compile such cobol and execute DB2 Programs.

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PDO_IBM-DSN(3)								 1							    PDO_IBM-DSN(3)

PDO_IBM DSN - Connecting to IBM databases

	The PDO_IBM Data Source Name (DSN) is based on the IBM CLI DSN. The major components of the PDO_IBM DSN are:

	      o DSN prefix
		- The DSN prefix is ibm:.

	      o DSN
		- The DSN can be any of the following:

		     o a) Data source setup using
		       db2cli.ini or odbc.ini

		     o b) Catalogued database name i.e. database alias in the DB2 client catalog

		     o c) Complete connection string in the following format: DRIVER={IBM DB2 ODBC DRIVER};DATABASE=
		       database;HOSTNAME=  hostname;PORT= port;PROTOCOL=TCPIP;UID= username;PWD= password; where the parameters represent the fol-
		       lowing values:

			    o $database
			      - The name of the database.

			    o $hostname
			      - The hostname or IP address of the database server.

			    o $port
			      - The TCP/IP port on which the database is listening for requests.

			    o $username
			      - The username with which you are connecting to the database.

			    o $password
			      - The password with which you are connecting to the database.

       Example #1

	      PDO_IBM DSN example using db2cli.ini

	       The following example shows a PDO_IBM DSN for connecting to an DB2 database cataloged as DB2_9 in db2cli.ini:

	      $db = new PDO("ibm:DSN=DB2_9", "", "");


       Example #2

	      PDO_IBM DSN example using a connection string

	       The following example shows a PDO_IBM DSN for connecting to an DB2 database named testdb using the DB2 CLI connection  string  syn-

	      $db = new PDO("ibm:DRIVER={IBM DB2 ODBC DRIVER};DATABASE=testdb;" .
		"HOSTNAME=;PORT=56789;PROTOCOL=TCPIP;", "testuser", "tespass");

PHP Documentation Group 													    PDO_IBM-DSN(3)