SQL insert

["Suresh Kumar" <suresh@xxxxxxxxxxxxxxxxxx>]

Hi all,
  First of all, couple of weeks ago, I had posed a question regarding the 
slowness of AS400 data access thru JT400. Thanx for all the help, we brought 
down the response time from 15-20 minutes to about 20 seconds now. Just to 
summarize (might help somebody),  we implemented the following  steps:

1. Client PC running Web Server is on the same LAN as AS400 (before the web 
server was accessing AS400 data remotely).
2. Appserver with connection pooling (this seems to have cut down the response 
time by half).
3. Stored procedures: this did not improve response time time dramatically 
(about 10-15%). I was expecting 50% improvement.
4. Remove DOM structures within the Java. We are now going with Hash table 
concept.(this has definitely increased the speed by atleast 50%)
5. Preparestatements wherever necessary.

 Couple of observations:
1. Even with all these steps, response time of 20 seconds is not acceptable. We 
are continuing to improve the code. We do have about 20 SQL statements to get 
data from various tables (all tables are small) and then the HTML is created 
and sent to client. Is 20 seconds response acceptable??

2. New problem: when we try to insert data into one of the AS400 table, we get 
an error SQL7008 (<file> in <library> not valid for operation). It looks like 
the system is expectng for us to journal the table. Howevere, this table is not 
journalled even in our main AS400 application. At the same time, when this SQL 
statement is executed using CA400, there is no error and record gets inserted 
into that table. We don't do journalling at all on this table anywhere. Is 
there any parameter that needs to be specified when the connection is first 
established??

3. The same setup with Oracle as back end seems to run much faster (within 5 
seconds). Is this generally true??

Thanx for all the help,
Suresh    

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