Data Replication: The SQL

Andy Engels14th NATURAL ConferenceOctober, 2006

Agenda

1. What they’re doing with Connx2. Why they’re doing it3. How they’re doing it4. How Connx works5. Additional features of Connx used

VB.net Application

Trigger & Stored Procedure

NATURAL

SQL Server

Assembler

ADABAS

Connx ODBC Client

Connx CICS Server

The Layout

VB.net Application

SQL Server

ADABAS

The Layout

NATURAL

Bridge 1

Bridge 2

Pending

Part 1Part 1

The Layout

ADABAS

COBOL

Pending

Acct

Part 2Part 2

VB.net Application

Trigger & Stored Procedure

NATURAL

SQL Server

Assembler

ADABAS

Connx ODBC Client

Connx CICS Server

The Why

VB.net Application

SQL Server

The Why

The Steps

1. Systrans a DDM to the server2. Using the Connx Data Dictionary, incorporate the

Systrans file3. Save the Connx CDD file4. Define an ODBC source5. Define a SQL Server Linked Server pointing to

the Connx ODBC source6. Set up a trigger to fire – as data is added to the

SQL Server table, run the INSERT against ADABAS

7. Start a batch job of a NATURAL program to scan for work in the ADABAS table

The SQL

INSERT INTO BridgeADA(AcctLicenseeName, AcctNbr, ProdNbr )FROM BridgeTable

ADD 1 TO SYNCS_PROCESSED

WRITE '(inside read) Handled a record' *TIME

END-READ /* (0530)

WRITE 'Going to sleep for a few seconds.' *TIME

CALL 'ISSLEEP' SLEEP_LENGTH

WRITE 'Woke up.' *TIME

END-REPEAT

***************************************

*** Housekeeping

***************************************

SLEEP_LENGTH := 10

FORMAT LS=133 PS=50

** Main loop

WRITE 'Now entering main loop to wait for work' *TIME

REPEAT

WRITE / 'Going to read bridge file looking for work.' *TIME

READ PAM BY STAT-ACCT-SER-KEY /* check this file for work

IF ACCT-LICENSEE-NAME = 'QUITQUIT’' THEN

WRITE 'Shutting down per request' *TIME

END-IF

………… Do stuff here – take data from pending and put into bridge tables …….

….. Relieve status field – mark as processed…………

The Natural

STM 0,15,SAVEREG STORE ALL REGISTERS *===*

SR R9,R9 MAKE SURE R9 IS CLEAN *===*

DROP 15 *===*

BALR R9,0 *===*

USING ISSLEEP,R9 *===*

LR R9,R15 POINT TO OURSELVES *===*

* ----------------------- *===*

* M A I N R O U T I N E *===*

* ----------------------- *===*

L R7,0(,R1) LOAD PASSED PARM ADDRESS LIST *===*

L R8,0(,R7) LOAD PASSED PARM INTO INTV REG *===*

STIMER SETIME (R8),ISTECB1 SET UP INTERVAL INTO ECB *===*

WAIT ISTECB1 GO TO SLEEP *===*

* OK, WAKE UP AND GO HOME *===*

* ----------------------- *===*

* E T G O H O M E ! ! *===*

* ----------------------- *===*

EXITHERE EQU * *===*

SR R15,R15 CLEAR OUT REGISTER 15 RC=0 *===*

LM 0,13,SAVEREG RESTORE REGISTERS *===*

BR R14 RETURN *===*

The Assembler

Pieces

Connx “Data Dictionary”Utility

SYSTRANS

Connx CDD File

Connx ODBC driver

Pieces

NX00 – Connx listener

This background task fires off additional tasksas needed to handle calls

ADA0 – handles all Data base activity for aCaller. Spawned by NX00

ADABAS HP interface linked in (ADALNK)

CICS

ADABAS

The Big Picture

NX00

ADA0

Connx CDD File

Connx ODBC driver

Application / SP SQL Query

TCP/IP

ADABAS

Additional Feature

NX00

ADA0

Connx CDD File

Connx ODBC driver

Data SyncUtility

TCP/IP

ADABASSQL Server

NX00

ADA0

Connx CDD File

Connx ODBC driver

SQL Query

TCP/IP

ADABAS

Additional Feature

SQL Server

Andy Engels14th NATURAL ConferenceOctober, 2006

Questions???

Data Replication: The SQL