<s>
HammerDB	B-Application
is	O
an	O
open	B-License
source	I-License
database	O
benchmarking	O
application	O
developed	O
by	O
Steve	O
Shaw	O
.	O
</s>
<s>
HammerDB	B-Application
supports	O
databases	O
such	O
as	O
Oracle	B-General_Concept
,	O
SQL	O
Server	O
,	O
Db2	B-Application
,	O
MySQL	B-Application
and	O
MariaDB	B-Application
.	O
</s>
<s>
HammerDB	B-Application
is	O
written	O
in	O
TCL	B-Operating_System
and	O
C	B-Language
,	O
and	O
is	O
licensed	O
under	O
the	O
GPL	O
v3	O
.	O
</s>
<s>
HammerDB	B-Application
is	O
a	O
database	O
load	O
testing	O
and	O
benchmarking	O
tool	O
.	O
</s>
<s>
HammerDB	B-Application
is	O
used	O
to	O
create	O
a	O
test	O
schema	O
,	O
load	O
it	O
with	O
data	O
and	O
simulate	O
the	O
workload	O
of	O
multiple	O
virtual	O
users	O
against	O
the	O
database	O
for	O
both	O
transactional	O
and	O
analytic	O
scenarios	O
.	O
</s>
<s>
HammerDB	B-Application
makes	O
it	O
possible	O
to	O
run	O
derived	O
workloads	O
of	O
the	O
industry	O
standard	O
TPROC-C	O
&	O
TPROC-H	O
(	O
known	O
by	O
trademarks	O
TPC-C	O
and	O
TPC-H	O
respectively	O
)	O
so	O
they	O
can	O
compare	O
and	O
contrast	O
systems	O
,	O
databases	O
and	O
database	O
cloud	O
services	O
.	O
</s>
<s>
HammerDB	B-Application
supports	O
Oracle	B-General_Concept
Database	I-General_Concept
,	O
Microsoft	B-Application
SQL	I-Application
Server	I-Application
,	O
IBM	B-Application
Db2	I-Application
,	O
TimesTen	B-Application
,	O
MySQL	B-Application
,	O
MariaDB	B-Application
,	O
PostgreSQL	B-Application
,	O
Greenplum	O
,	O
Postgres	B-Language
Plus	I-Language
Advanced	I-Language
Server	I-Language
,	O
Amazon	O
Aurora	O
and	O
Amazon	O
Redshift	O
.	O
</s>
<s>
HammerDB	B-Application
also	O
includes	O
deprecated	O
workloads	O
for	O
Redis	B-Operating_System
and	O
Apache	B-Language
Trafodion	I-Language
.	O
</s>
<s>
HammerDB	B-Application
is	O
developed	O
in	O
the	O
languages	O
TCL	B-Operating_System
and	O
C	B-Language
-	O
this	O
is	O
to	O
avoid	O
a	O
common	O
'	O
feature	O
 '	O
of	O
Python	B-Language
called	O
the	O
Global	B-Operating_System
Interpreter	I-Operating_System
Lock	I-Operating_System
or	O
GIL	O
.	O
</s>
<s>
HammerDB	B-Application
is	O
hosted	O
on	O
Github	O
by	O
TPC-Council	O
.	O
</s>
