Why use RUNSTAT Utility?
- 3 Answers
- 23086 Views
- Merrill Lynch, I also Faced
- E-Mail Answers
Answers were Sorted based on User's Feedback
Answer / sajjan jindal
IT is a DB2 utility used to collect statistics about the
data values in tables which can be used by the optimizer to
decide the access path. It also collects statistics used
for space management. These statistics are stored in DB2
catalog tables.
The RUNSTAT is executed after a load, or after mass
updates, inserts, deletes, or after REORG.
| Is This Answer Correct ? | 35 Yes | 2 No |
Answer / elavarasi
to provide statistical info. abt table,tablespace and index
| Is This Answer Correct ? | 20 Yes | 3 No |
Answer / avinash
It provide the summary information about the
characteristics of data available in table, indexes etc.
DB2 records these information into the CATLOG table and use
this information to decide on the access path to data
during the bind process. To obtain the statistics you can
query the catalog table.
| Is This Answer Correct ? | 8 Yes | 4 No |
In BIND, isolation level parameter specifies the duration of page lock and ACQUIRE, RELEASE also do almost the same thing. What is the exact difference between the two? Do they work in conjunction while executing SQL queries and obtaining locks?
What are the abend codes occour in ur latest PROJECT in DB2
How can you find out which query is taking lot of time to execute in cobol-db2 program ?
where can we use index and subscript ? with example ?
How can the firstname and the lastname from the emp table be concatenated to generate complete names?
Could anyone clearly explain the diference between sub query and correlated sub query?
What is a cursor in programming?
4. A DB2 application is bound with uncommitted Read isolation level.It issues a request that retrieves 20 rows out of 200000 in the table. Which of the following descrbes the rows that are locked as a result of this request? a. None of the rows are locked. B.The retrieved rows are locked. C.The last row of the result set is locked. D.The rows not previously updated by another application are locked.
What is commit in db2?
Is it possible to precompile if db2 goes down?
What is db2 instance?
Why db2 is called db2?
COBOL 
