What is the difference between various read and find
statement,and which one should be used when for better
adabas performance ?
- 2 Answers
- 5707 Views
- IBM, I also Faced
- E-Mail Answers
Answers were Sorted based on User's Feedback
Answer / karthik
As for as assembler is concerned , we have reads based upon
the type of file. VSAm,QSAm etc. If it is QSAM we can use
normal GETL and GETM witha DCB defined in the pgm. if it
is going to be a VSAM i guess it should be a AB along with
a RPL
| Is This Answer Correct ? | 1 Yes | 0 No |
Answer / david grund
There are two possible scenarios:
1) This is a classroom quesiton where you are expected to
do some research on your own, and not ask someone in the
cloud for the exact answer.
2) The question is too vague, and would require a full
essay to answer. Please be more specific.
| Is This Answer Correct ? | 0 Yes | 1 No |
how to pass the parameters from jcl to assembler pgm?
What is maximum displacement and how to cross this limit?
What is icm instruction?
How many maximum base registers we can have in a program?
Can we use MVC instruction to move pack field to pack field....which instruction you will use and why ?
Can we use an equated value as operand for an MVC instruction? Reason for the same
How are data passed from JCL parm to assembler program. And how is data passed from a calling program to an assembler called program.
Why can only 256 bytes be moved from one address to another in a MVC?
What is the use of trt instruction?
how do you round the addition or subtraction of two numbers in assembler? what does the following code do? change process tool(code changes from dev to prd) the changes made to your code should be effected in live. How the process takes place. That is how can you move the code changes from development to production?
In the house keeping section of an MVS assembly language program, like the one below STM R14,R12,12(R13) BASR R12,R0 USING *,R12,R11 LA R11,2048 LA R11,2048(R11,R12) .... .... 1. What if BASR R12,R0 IS NOT PRECEDE USING *,R12,R11? 2. USING (base address), REGISTER does USING directive says assembler to treat particular Register as a base register with the mentioned base address..in the above case * i.e current location counter..well if that is the case why we need BASR R12,R0 ? 3. What if I write like STM R14,R12,12(R13) BASR R12,R0 LA R11,2048 LA R11,2048(R11,R12) USING *,R12,R11 there is no address resolution being calculated in both LA statements so is it a right way to set Base register?..will there be any issues with Domain regarding R11 and R12?
Explain about base register?
COBOL 
