Why might full image copies be faster to implement than an incremental image copy?

4 Answers  

---

What is concurrency?

0 Answers  

---

How to handle null values in db2

4 Answers  

---

Is there any advantage to denormalizing DB2 tables?

1 Answers  

---

In a Cobol-DB2 program, I am fetching rows from 4 tables using cursor and then based on the a field present in that table, It processes the information accordingly..for example stat-c is one digit field..if stat-c is 'D' then the a row is deleted from table and written those details in to a file. If the stat-c is 'U' then a row is updated (hardcoded what to update)in a table and written those details in to a file. If the stat-c is 'I' then a row is inserted in a table and written those details in to two files. The issue is i have to include the intermediate commits. When an abend occurs, due to commit statement db2 tables will be saved, But there will be lose of file contents. When we resubmitting the job associated with this program there will be insert ,update and delete anomolies to avoid that what measures could be taken?. The intermediate commit is nothing but issuing commit after massive inserts, updates and deletes(sum of 500actions)

2 Answers  

---

What are the levels of isolation available with DB2V4

2 Answers   IBM,

---

Explain what are the various isolation levels possible?

0 Answers  

---

What is cascading rollback?

0 Answers  

---

how can you copy records present in a flat physical file to a database file(physical file).please explain in rpg400 with a simple example

1 Answers   CTS,

---

While unloading huge amount of data from table. Suddenly job failed some error. Imagine 1M data unloading, In that 90% data unloaded only 10% left, So if want to unload the rest 10% what needs to be done? Whether do i need to start from top or anything ?

0 Answers   JPMorgan Chase,

---

What is the purpose of the SDSNLOAD dataset in the STEPLIB while running DB2 programs?

2 Answers  

---

what is difference between random and sequence file access

1 Answers   Syntel,

---