Interested to Buy Any Domain ? << Click Here >> for more details...
when we are tying to update a table having 100 rows. if the
program abends when updating 51 row . how to start updating
again from the 51 row .what was the logic
- 2 Answers
- 10072 Views
- TCS, I also Faced
- E-Mail Answers
Answers were Sorted based on User's Feedback
Answer / abhijit18in2002
when we are tying to update a table having 100 rows.
if the program abends when updating 51 row . how to start
updating again from the 51 row .
what was the logic
Ans: The Possible answer would be..if you had used COMMIT
before 51st ROW .. the Former records
would have been updated in the table .. If No COMMIt was
used.. The whole transaction would have been
ROLLBACKED.
Now If you want to start a fresh Transaction and want to
start Updating directly from 51st Row
Then There are two ways
1> Perform a loop to scroll till u have read 50 rows
Then Point ur cursor as CURRENT to the 51st Row
Start Updating the Records Till end of table.
or
2> Declare a Scrollable cursor & use FETCH ABSOLUTE option
to fetch a particular row directly
EXEC SQL FETCH ABSOLUTE +51 C1
INTO :TEMP1, :TEMP2, :TEMP3;
this statement fetches the 51st row of the Table
| Is This Answer Correct ? | 8 Yes | 5 No |
Answer / kamra2010
1) Create two work files, say WORK-1 and WORK-2.
2) Unload the table into file WORK-1.
3) Pass the commit frequency through the JCL to the program.
4) Program logic:
(i) read the input file WORK-1
(ii) update the table
(iii) if the number of records updated in the table is
equal to the commit frequency then apply COMMIT command.
Also, write the last committed record into the output file
WORK-2. (this record will be used for restart logic)
(iv) In Restart process,
a. read the output file record
b. next, the input file will be read untill it
finds the corresponding output file record
c. follow the same step 4(i) to step 4(iii)
| Is This Answer Correct ? | 0 Yes | 0 No |
What is the purpose of coding FETCH in a SQL SELECT query? Explain with an example in Detail?
How does a cursor work?
Comment whether dclgen is mandatorily used. If not, then what is the point of using it?
I need to view the number of tables existing under one particular Owner. Is it possible? If so, pl give the SQL query for this?
What information is held in SYSIBM.SYSCOPY?
in db2, already 10 columns arie der, and i want to insert 11th column. what parameters u wil consider for insertion and how will u insert
What is netezza database?
Can we update view in db2?
5 rows are inserted to a DB2 Table. Next 3 of those are updated, then a rollback is issued. What would happen when the rollback is issued?
How to resolve -917 sql code in DB2?
What is the difference between static and dynamic SQL?
Suppose we have a query for update update table1 set col1 = 'val1' where col2=(select .... from ...) suppose the subquery does not return any record, what will happen to update?
COBOL 
