Generate random data for MaxDB

Question

Hello everybody,
we are doing some tests on our MaxDB installation
We would like to generate some activity on the database in order to test performance and generate some log files in order to do a complete restore/recovery
I think it's possible to use some sql statement to create and populate a table using sqlcli, but I don't know how to enter many rows in one time, anyone know how do do this?
Thanks,
Valerio

Answer 1

Valerio Cicchiello wrote:>
> Hello everybody,
>
> we are doing some tests on our MaxDB installation
> We would like to generate some activity on the database in order to test performance and generate some log files in order to do a complete restore/recovery
>
> I think it's possible to use some sql statement to create and populate a table using sqlcli, but I don't know how to enter many rows in one time, anyone know how do do this?
There are several options:
1. Option (super cheap and easy):
Open an SQL Session
Create a dummy table e.g.
create table dummy (col1 char(1000), col2 char(1000), col3 char(1000))
Load data into the dummy table, e.g.
insert into dummy (select lpad('x', 1000, 'x'), lpad('x', 1000, 'x'), lpad('x', 1000, 'x') from tables a, tables b where rownum <10000)
Then truncate the table
truncate table dummy
and insert the data again.
2. Option (less cheap, but still easy):
Use the delivered dummy-data test tool SDBFILL, e.g. like this:
C:\sapdb\db760\db\bin\sdbfill DB760 init 0 10 100 0 a SUPERDBA ADMIN
checking the command help gives us this:
usage: sdbfill <DBName> (init|create|append|check|delete) [<From> <To>
               [<TransactionLength> [<SleepBeforeCommit> [ (q|a|b)
               [<DBAUser> <DBAPassword>]]]]] [<node>]
The q|a|b section refers to the output mode (q= quiet, a=ascii, b=binary).
In order to use it you've to make sure that the provided DBA user is setup as NOT EXCLUSIVE user.
The program will create a dummy table called 'sdbfill' with this command:
C:\sapdb\db760\db\bin\sdbfill DB760 create 1 10 100 0 a SUPERDBA ADMIN
Dropped table 'sdbfill'.
Created table 'sdbfill'.
10, final commit at 9
9 rows inserted successfully.
Afterwards you can just pump in data like this:
C:\sapdb\db760\db\bin\sdbfill DB760 append 0 100000 100 0 a SUPERDBA ADMIN
100000, final commit at 99999
You may want to play a bit around with this tool to lean how it works.
It's the same tool used by the backup tool vendors to create data in MaxDB.
Hope you get along with any of the two options.
regards,
Lars