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db2 maintains information about the data... a.in tables.
b.in a set of tables known as db2 catalog. c.in db2
database. d.none of the above. 1
What is the maximum number of tables that can be stored on a
Partitioned Table Space ? 1
what is contained in the DB2 node lock file? A) data base
names B) data base users names C) license keys D) server
names Accenture 5
Can a primary key have null values? If we try to insert a
null value in a primary key column, will it work or give an
error code? 6
When you are working with the project after coding what will
u do? Like what type of documents u will prepare? How will u
do testing? 2
how to delete perticular row from table for ex. how you will
delete 3rd row from table please answer THANKS IN ADVANCE IBM 7
max number of columns in a db2 table? 6
What is package versioning? Please give an example. 1
What is the picture clause of the null indicator variable? 6
How do you filter out the rows retrieved from a Db2 table ? 1
What is DB2 (IBM Database 2)? 3
Can any one tell me about Restart logic in DB2.
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Answer / guest
que) can primary key have null values?
ans) no, primary key muse have the value (not null)
que)how to delete particular row from table.(3rd row)
delete from emp
where rowid=3
que)What is the picture clause of the null indicator variable?
ans) 01 sal-ind pic s9(4) usage comp
exec sql
select empno,sal
into :empno,:sal:sal-ind
from emp
where empno='e007'
end-exec.
Restart Logic...
- There is only one commit or rollback before termination of
transaction.
- suppose a application program is processing 1 million
records and the program abends at 90th thousand record. so
after restart of the program it is going to process all 90
thousand successfully but not committed records once again.
then this will became a problem..
- so when ever we are doing such huge updation we need to
use commit frequency properly. Let us say we have design
application commit frequency at 1000 record. If the program
abands at 1500 record it should get restart at 1001 record.
this is called as restart logic.
- for that create a temporary table with dummy record and
insert a record in the table for every commit with a key and
occurrence of the commit. this should happen just before the
issue of the commit.
- then the first paragraph from the procedure should read
last record from the table and skipped all the records that
are successfully processed and committed (1000th record).
After the processing of all the records, delete the entries
in the table and issue one final commit.
correct me if i am wrong
thanks
| Is This Answer Correct ? | 0 Yes | 0 No |
Answer / guest
que) can primary key have null values?
ans) no, primary key muse have the value (not null)
que)how to delete particular row from table.(3rd row)
delete from emp
where rowid=3
que)What is the picture clause of the null indicator variable?
ans) 01 sal-ind pic s9(4) usage comp
exec sql
select empno,sal
into :empno,:sal:sal-ind
from emp
where empno='e007'
end-exec.
Restart Logic...
- There is only one commit or rollback before termination of
transaction.
- suppose a application program is processing 1 million
records and the program abends at 90th thousand record. so
after restart of the program it is going to process all 90
thousand successfully but not committed records once again.
then this will became a problem..
- so when ever we are doing such huge updation we need to
use commit frequency properly. Let us say we have design
application commit frequency at 1000 record. If the program
abands at 1500 record it should get restart at 1001 record.
this is called as restart logic.
- for that create a temporary table with dummy record and
insert a record in the table for every commit with a key and
occurrence of the commit. this should happen just before the
issue of the commit.
- then the first paragraph from the procedure should read
last record from the table and skipped all the records that
are successfully processed and committed (1000th record).
After the processing of all the records, delete the entries
in the table and issue one final commit.
correct me if i am wrong
thanks
| Is This Answer Correct ? | 0 Yes | 0 No |
I have two input files i/p1 name id-key flag date i/p 2 name id-key date if id-key matches in the both the files then it should write the output file from i/p1 with flag 'Y'. It should be done thru JCL sort card ,Please provide the info on this. ---Note : output file should have all records from i/p1 with proper Flag.
Explain the function of a dd statement?
in job stmt i coded time=(2,30) and in step 1 i coded time=(1,30) and in step i coded time=(1,30), whch one executes first and what happens if step1 and step2 time executes and wht about the remaining time if step and step2 executes
I have a job which is a long-running one. Processes millions of records. Due to some run-time problem (not a problem due to the job/data) the job abends.What needs to be done to make the job complete successfully.
How to execute step2,step1, step3 if step1,2,3 are in order
How to pass values in jcl to cobol?
Which statement is used to identify the private libraries in job?
i just need the first and last record from a sequencial file?how
how to split a file
Why do you use a control card?
When concatenating two PDS can any one PDS can have empty dataset i.e without any value(Dummy).
Explain about LMINIT - generate a data ID for a data set
COBOL 
