0
Q:

How does DB2 determine what lock- size to use? 

Answer:



Q:

How do you check the syntax of a JCL without running it?

Answer

TYPERUN=SCAN on the JOB card or use JSCAN.


TYPERUN=HOLD on the job card.


it is used for syntatical checks and direct job to spool and hold it.

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3 7175
Q:

What are the difference between in-stream procedure and inline procedure in JCL ?

Answer

An in-stream PROC is defined right in the jcl stream and doesn't reside in the proclib. This is an older technique associated with punched cards but it is still in use with setup and installation programs from vendors.


for the in-line perform instead of:


perform add-paragraph until switch = 'y'


you can code


perform until switch = 'y'


body of code


end-perform


body of code is the code from add-paragraph appearing in-line (ie right in the perform) instead of in a separate paragraph (out of line code)

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Q:

How will you call the return code of JCL ?

Answer

Return Code in JCL can b obtained by the use of COND paramater...it is used to know the return codes of previous steps.

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Q:

What are SD37, SB37, SE37 abends?

Answer

All indicate dataset out of space. SD37 - no secondary allocation was specified. SB37 - end of vol. and no further volumes specified. SE37 - Max. of 16 extents already allocated.

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5 11502
Q:

What is the use of SYSPRINT, SYSIN, DUMMY in JCL ?

Answer

SYSPRINT: All system output will appear under this DD card. Suppose you are copying a VSAM file using IDCAMS. Then, number of records processed, highest condition code etc.. will appear under sysprint. You cannot customise SYSPRINT output.


SYSIN: This is nothing but SYStem INstruction. Suppose, you want to sort a file on certain key. You have to have following command under SYSIN.


SORT FIELDS = (starting-col,length,data-type,A/D)


SUM FIELDS = NONE


DUMMY: Mainly used where user is intended to simulate a program without creating an output file.

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Q:

What are the processing modes available in IMS DB?

Answer

Batch DL/I


MPP Mode - (Message Processing Program)


BMP Mode - (Batch Message Processing)

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2 6461
Q:

What are the two types of fields available in IMS DB?

Answer

Key Fields - (PROCOPT=K)


- Used to sequence the database and can't be changed


- It is the field within a segment, used to identify the occurrence of the segment


- Used to maintain the IMS segments in ascending sequence.


 


Search Fields - (PROCOPT=G)


- Used to search for a segment, without the segment being sequenced on that field


- A segment need not have a key or search field.


 


Both types of fields can be used to search the database.

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0 4100
Q:

What is a key field in an IMS database?

Answer

A Field that DL/I uses to maintain the segments in the ascending order is called the key field

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