How can one determine the status of a tablespace ?
By using the DISPLAY DATABASE command.
The following is the checklist to complete a DB2 batch or on-line program….
Batch DB2 COBOL program….
1. If the program is main program it should have both DBB and DPK components.
2. If the program is linked (called) program it should have only DPK component. But the package generated should be binded in Calling program DBB component.
For example the DBB component looks like ….
BIND PLAN(????????) - **********>>> ENTER PLAN NAME
PKLIST(SEALAND.????????, - **********>>> ENTER MEMBER NAME
SEALAND.????????, - **********>>> (MULTIPLE MEMBERS
SEALAND.????????) - **********>>> FOR EACH PLAN)
QUALIFIER(TEST) - **********>>> MUST ALWAYS BE TEST
OWNER(????) - **********>>> ENTER YOUR TSO ID
ACTION(REPLACE) -
RETAIN -
VALIDATE(BIND) -
ISOLATION(CS) -
FLAG(I) -
ACQUIRE(USE) -
RELEASE(COMMIT) -
EXPLAIN(YES)
*********************************************************************
* THIS IS A SAMPLE DBB CARD FOR DB2 PACKAGING *
* *
* IF MULTIPLE MEMBERS ARE ENTERED IN PKLIST, *
* THERE MUST BE A DPK CARD FOR EACH ONE. *
*********************************************************************
The following is the format of the DPK card….
BIND PACKAGE(SEALAND) -
MEMBER(????????) - ***********>>> ENTER MEMBER NAME
VALIDATE(BIND) -
OWNER(????) - ***********>>> ENTER YOUR TSO ID
EXPLAIN(NO) -
QUALIFIER(TEST) ***********>>> MUST ALWAYS BE TEST
***********************************************************************
* *
* THIS IS A SAMPLE DPK CARD FOR DB2 PACKAGING *
* *
* *
***********************************************************************
3. As we are all aware that RCT is a concept of CICS. So batch DB2 program will not have any RCT entry.
4. To run this DB2 program the following the is the model JCL…
//TESTXXX JOB (AAAA),’ACCOUNTS PAYABLE’,CLASS=A,
// USER=XXXX,MSGCLASS=H,REGION=4096K
/*JOBPARM SYSAFF=B158
//JOBLIB DD DSN=TEST.JOBLIB,DISP=SHR
/*
//STEP010 EXEC PGM=IKJEFT01,DYNAMNBR=20
//STEPLIB DD DSN=DB2T.DSNEXIT,DISP=SHR
// DD DSN=DB2T.DSNLOAD,DISP=SHR
// DD DSN=TEST.JOBLIB,DISP=SHR
//INPUT1 DD DSN=XYZ.ABC.DBF,DISP=SHR
//OUTPUT1 DD DSN=XYZ.BCD.LEY,
// DISP=(NEW,CATLG,DELETE),
// DCB=(RECFM=FB,LRECL=122,BLKSIZE=2440),UNIT=SYSDA,
// SPACE=(CYL,(10,2),RLSE)
//SYSPRINT DD SYSOUT=*
//SYSTSPRT DD SYSOUT=*
//SYSOUT DD SYSOUT=*
//SYSERR DD SYSOUT=*
//SYSDUMP DD SYSOUT=*
//TESTDUMP DD SYSOUT=*
//SYSMSG DD SYSOUT=*
//SYSTSIN DD *
DSN SYSTEM(DB2T)
RUN PROG(TESTPROG) PLAN(TESTPLAN)
END
//*
As shown in above JCL program IKJEFT01 is used to run DB2 program (TESTPROG in our example).
In the above JCL program name and plan names are specified in SYSTSIN dataset as in-stream data.
The following is the check list to complete CICS(on-line) DB2 program…
1. If the program is main program it should have both DBB and DPK components.
2. If the program is LINKed, XCTLed program it should have only DPK component. But the package generated
should be binded in Calling program DBB component.
3. RCT entry has to be created if the program is main program(which consists of TRANSID). If the program is
LINKed or XCTLed it need not have a RCT entry. RCT entry basically used to attach CICS system to DB2
system.
4. No JCL business here because it is on-line.
5. The DBB and DPK s shown for batch program are also applicable to this.
1. What does SQLCODE +100 means
2. What does the SQLCODE +818 means
3. What are the pars of a SELECT statement
4. What is DB2 etc….,
Explore posts in the same categories: Database Interview Questions