<s>
PL/SQL	B-Language
(	O
Procedural	B-Application
Language	I-Application
for	O
SQL	B-Language
)	O
is	O
Oracle	B-Application
Corporation	I-Application
's	O
procedural	B-Application
extension	O
for	O
SQL	B-Language
and	O
the	O
Oracle	B-General_Concept
relational	I-General_Concept
database	I-General_Concept
.	O
</s>
<s>
PL/SQL	B-Language
is	O
available	O
in	O
Oracle	B-General_Concept
Database	I-General_Concept
(	O
since	O
version	O
6	O
-	O
stored	O
PL/SQL	B-Language
procedures/functions/packages/triggers	O
since	O
version	O
7	O
)	O
,	O
Times	B-Application
Ten	I-Application
in-memory	I-Application
database	I-Application
(	O
since	O
version	O
11.2.1	O
)	O
,	O
and	O
IBM	B-Application
Db2	I-Application
(	O
since	O
version	O
9.7	O
)	O
.	O
</s>
<s>
Oracle	B-Application
Corporation	I-Application
usually	O
extends	O
PL/SQL	B-Language
functionality	O
with	O
each	O
successive	O
release	O
of	O
the	O
Oracle	B-General_Concept
Database	I-General_Concept
.	O
</s>
<s>
PL/SQL	B-Language
includes	O
procedural	B-Application
language	I-Application
elements	O
such	O
as	O
conditions	O
and	O
loops	O
,	O
and	O
can	O
handle	O
exceptions	O
(	O
run-time	O
errors	O
)	O
.	O
</s>
<s>
Arrays	O
are	O
supported	O
involving	O
the	O
use	O
of	O
PL/SQL	B-Language
collections	O
.	O
</s>
<s>
Implementations	O
from	O
version	O
8	O
of	O
Oracle	B-General_Concept
Database	I-General_Concept
onwards	O
have	O
included	O
features	O
associated	O
with	O
object-orientation	B-Application
.	O
</s>
<s>
One	O
can	O
create	O
PL/SQL	B-Language
units	O
such	O
as	O
procedures	O
,	O
functions	O
,	O
packages	O
,	O
types	O
,	O
and	O
triggers	O
,	O
which	O
are	O
stored	O
in	O
the	O
database	O
for	O
reuse	O
by	O
applications	O
that	O
use	O
any	O
of	O
the	O
Oracle	B-General_Concept
Database	I-General_Concept
programmatic	O
interfaces	O
.	O
</s>
<s>
Historically	O
,	O
the	O
first	O
public	O
version	O
of	O
PL/SQL	B-Language
definition	O
was	O
in	O
1995	O
,	O
and	O
the	O
Oracle	B-Application
's	O
inception	O
year	O
~	O
1992	O
.	O
</s>
<s>
The	O
main	O
feature	O
of	O
SQL	B-Language
(	O
non-procedural	O
)	O
is	O
also	O
its	O
drawback	O
:	O
control	O
statements	O
(	O
decision-making	B-Language
or	O
iterative	B-Language
control	I-Language
)	O
cannot	O
be	O
used	O
if	O
only	O
SQL	B-Language
is	O
to	O
be	O
used	O
.	O
</s>
<s>
PL/SQL	B-Language
provides	O
the	O
functionality	O
of	O
other	O
procedural	B-Application
programming	I-Application
languages	I-Application
,	O
such	O
as	O
decision	O
making	O
,	O
iteration	B-Algorithm
etc	O
.	O
</s>
<s>
A	O
PL/SQL	B-Language
program	O
unit	O
is	O
one	O
of	O
the	O
following	O
:	O
PL/SQL	B-Language
anonymous	O
block	O
,	O
procedure	O
,	O
function	O
,	O
package	B-Architecture
specification	O
,	O
package	B-Architecture
body	O
,	O
trigger	O
,	O
type	O
specification	O
,	O
type	O
body	O
,	O
library	O
.	O
</s>
<s>
Program	O
units	O
are	O
the	O
PL/SQL	B-Language
source	O
code	O
that	O
is	O
developed	O
,	O
compiled	O
,	O
and	O
ultimately	O
executed	O
on	O
the	O
database	O
.	O
</s>
<s>
The	O
basic	O
unit	O
of	O
a	O
PL/SQL	B-Language
source	O
program	O
is	O
the	O
block	O
,	O
which	O
groups	O
together	O
related	O
declarations	O
and	O
statements	O
.	O
</s>
<s>
A	O
PL/SQL	B-Language
block	O
is	O
defined	O
by	O
the	O
keywords	O
DECLARE	O
,	O
BEGIN	O
,	O
EXCEPTION	B-General_Concept
,	O
and	O
END	O
.	O
</s>
<s>
These	O
keywords	O
divide	O
the	O
block	O
into	O
a	O
declarative	O
part	O
,	O
an	O
executable	O
part	O
,	O
and	O
an	O
exception-handling	O
part	O
.	O
</s>
<s>
If	O
a	O
variable	O
is	O
not	O
initialized	O
then	O
it	O
defaults	O
to	O
NULL	B-Language
value	O
.	O
</s>
<s>
The	O
optional	O
exception-handling	O
part	O
is	O
used	O
to	O
handle	O
run	O
time	O
errors	O
.	O
</s>
<s>
A	O
block	O
can	O
be	O
submitted	O
to	O
an	O
interactive	O
tool	O
(	O
such	O
as	O
SQL*Plus	O
)	O
or	O
embedded	O
within	O
an	O
Oracle	B-Application
Precompiler	O
or	O
OCI	B-Application
program	O
.	O
</s>
<s>
The	O
purpose	O
of	O
a	O
PL/SQL	B-Language
function	O
is	O
generally	O
used	O
to	O
compute	O
and	O
return	O
a	O
single	O
value	O
.	O
</s>
<s>
This	O
returned	O
value	O
may	O
be	O
a	O
single	O
scalar	O
value	O
(	O
such	O
as	O
a	O
number	O
,	O
date	O
or	O
character	O
string	O
)	O
or	O
a	O
single	O
collection	O
(	O
such	O
as	O
a	O
nested	B-Language
table	I-Language
or	O
array	O
)	O
.	O
</s>
<s>
User-defined	B-Language
functions	I-Language
supplement	O
the	O
built-in	O
functions	O
provided	O
by	O
Oracle	B-Application
Corporation	I-Application
.	O
</s>
<s>
The	O
PL/SQL	B-Language
function	O
has	O
the	O
form	O
:	O
</s>
<s>
The	O
primary	O
difference	O
is	O
that	O
functions	O
can	O
be	O
used	O
in	O
a	O
SQL	B-Language
statement	O
whereas	O
procedures	O
cannot	O
.	O
</s>
<s>
Next	O
come	O
the	O
declarative	O
,	O
executable	O
and	O
exception-handling	O
parts	O
,	O
as	O
in	O
the	O
PL/SQL	B-Language
Anonymous	O
Block	O
.	O
</s>
<s>
A	O
procedure	O
may	O
also	O
be	O
created	O
in	O
a	O
PL/SQL	B-Language
package	B-Architecture
-	O
this	O
is	O
called	O
a	O
Package	B-Architecture
Procedure	O
.	O
</s>
<s>
A	O
procedure	O
created	O
in	O
a	O
PL/SQL	B-Language
anonymous	O
block	O
is	O
called	O
a	O
nested	O
procedure	O
.	O
</s>
<s>
The	O
standalone	O
or	O
package	B-Architecture
procedures	O
,	O
stored	O
in	O
the	O
database	O
,	O
are	O
referred	O
to	O
as	O
"	O
stored	B-General_Concept
procedures	I-General_Concept
"	O
.	O
</s>
<s>
An	O
OUT	O
parameter	O
is	O
initially	O
NULL	B-Language
.	O
</s>
<s>
PL/SQL	B-Language
also	O
supports	O
external	O
procedures	O
via	O
the	O
Oracle	B-General_Concept
database	I-General_Concept
's	O
standard	O
ext-proc	O
process	O
.	O
</s>
<s>
Packages	O
are	O
groups	O
of	O
conceptually	O
linked	O
functions	O
,	O
procedures	O
,	O
variables	O
,	O
PL/SQL	B-Language
table	O
and	O
record	O
TYPE	O
statements	O
,	O
constants	O
,	O
cursors	B-Language
,	O
etc	O
.	O
</s>
<s>
Packages	O
are	O
composed	O
of	O
the	O
package	B-Architecture
specification	O
and	O
an	O
optional	O
package	B-Architecture
body	O
.	O
</s>
<s>
The	O
specification	O
is	O
the	O
interface	O
to	O
the	O
application	O
;	O
it	O
declares	O
the	O
types	O
,	O
variables	O
,	O
constants	O
,	O
exceptions	O
,	O
cursors	B-Language
,	O
and	O
subprograms	O
available	O
.	O
</s>
<s>
The	O
body	O
fully	O
defines	O
cursors	B-Language
and	O
subprograms	O
,	O
and	O
so	O
implements	O
the	O
specification	O
.	O
</s>
<s>
Modular	B-Architecture
approach	O
,	O
encapsulation/hiding	O
of	O
business	O
logic	O
,	O
security	O
,	O
performance	O
improvement	O
,	O
re-usability	O
.	O
</s>
<s>
They	O
support	O
object-oriented	B-Language
programming	I-Language
features	O
like	O
function	B-Language
overloading	I-Language
and	O
encapsulation	O
.	O
</s>
<s>
Using	O
package	B-Architecture
variables	O
one	O
can	O
declare	O
session	O
level	O
(	O
scoped	O
)	O
variables	O
since	O
variables	O
declared	O
in	O
the	O
package	B-Architecture
specification	O
have	O
a	O
session	O
scope	O
.	O
</s>
<s>
A	O
database	B-Language
trigger	I-Language
is	O
like	O
a	O
stored	B-General_Concept
procedure	I-General_Concept
that	O
Oracle	B-General_Concept
Database	I-General_Concept
invokes	O
automatically	O
whenever	O
a	O
specified	O
event	O
occurs	O
.	O
</s>
<s>
It	O
is	O
a	O
named	O
PL/SQL	B-Language
unit	O
that	O
is	O
stored	O
in	O
the	O
database	O
and	O
can	O
be	O
invoked	O
repeatedly	O
.	O
</s>
<s>
Unlike	O
a	O
stored	B-General_Concept
procedure	I-General_Concept
,	O
you	O
can	O
enable	O
and	O
disable	O
a	O
trigger	O
,	O
but	O
you	O
cannot	O
explicitly	O
invoke	O
it	O
.	O
</s>
<s>
The	O
trigger	O
is	O
said	O
to	O
be	O
created	O
on	O
or	O
defined	O
on	O
the	O
item	O
—	O
which	O
is	O
either	O
a	O
table	O
,	O
a	O
view	B-Language
,	O
a	O
schema	O
,	O
or	O
the	O
database	O
.	O
</s>
<s>
If	O
the	O
trigger	O
is	O
created	O
on	O
a	O
table	O
or	O
view	B-Language
,	O
then	O
the	O
triggering	O
event	O
is	O
composed	O
of	O
DML	O
statements	O
,	O
and	O
the	O
trigger	O
is	O
called	O
a	O
DML	O
trigger	O
.	O
</s>
<s>
An	O
INSTEAD	O
OF	O
trigger	O
is	O
either	O
:	O
A	O
DML	O
trigger	O
created	O
on	O
a	O
view	B-Language
or	O
a	O
system	O
trigger	O
defined	O
on	O
a	O
CREATE	O
statement	O
.	O
</s>
<s>
The	O
major	O
datatypes	O
in	O
PL/SQL	B-Language
include	O
NUMBER	O
,	O
CHAR	O
,	O
VARCHAR2	O
,	O
DATE	O
and	O
TIMESTAMP	O
.	O
</s>
<s>
PL/SQL	B-Language
also	O
supports	O
the	O
use	O
of	O
ANSI	O
date	O
and	O
interval	O
literals	O
.	O
</s>
<s>
Oracle	B-Application
Corporation	I-Application
has	O
predefined	O
several	O
exceptions	O
like	O
NO_DATA_FOUND	O
,	O
TOO_MANY_ROWS	O
,	O
etc	O
.	O
</s>
<s>
Each	O
exception	B-General_Concept
has	O
an	O
SQL	B-Language
error	O
number	O
and	O
SQL	B-Language
error	O
message	O
associated	O
with	O
it	O
.	O
</s>
<s>
The	O
following	O
code	O
segment	O
shows	O
the	O
IF-THEN-ELSIF-ELSE	O
construct	O
.	O
</s>
<s>
The	O
ELSIF	O
and	O
ELSE	O
parts	O
are	O
optional	O
so	O
it	O
is	O
possible	O
to	O
create	O
simpler	O
IF-THEN	B-Language
or	O
,	O
IF-THEN-ELSE	B-Language
constructs	O
.	O
</s>
<s>
The	O
CASE	O
statement	O
simplifies	O
some	O
large	O
IF-THEN-ELSIF-ELSE	O
structures	O
.	O
</s>
<s>
PL/SQL	B-Language
refers	O
to	O
arrays	O
as	O
"	O
collections	O
"	O
.	O
</s>
<s>
Programmers	O
must	O
specify	O
an	O
upper	O
limit	O
for	O
varrays	O
,	O
but	O
need	O
not	O
for	O
index-by	O
tables	O
or	O
for	O
nested	B-Language
tables	I-Language
.	O
</s>
<s>
Index-by	O
tables	O
can	O
be	O
used	O
to	O
simulate	O
associative	B-Application
arrays	I-Application
,	O
as	O
in	O
this	O
example	O
of	O
a	O
memo	O
function	O
for	O
Ackermann	O
's	O
function	O
in	O
PL/SQL	B-Language
.	O
</s>
<s>
It	O
parallels	O
a	O
Java	B-Language
map	O
,	O
which	O
comprises	O
key-value	O
pairs	O
.	O
</s>
<s>
With	O
nested	B-Language
tables	I-Language
the	O
programmer	O
needs	O
to	O
understand	O
what	O
is	O
nested	O
.	O
</s>
<s>
A	O
cursor	B-Language
is	O
a	O
pointer	O
to	O
a	O
private	O
SQL	B-Language
area	O
that	O
stores	O
information	O
coming	O
from	O
a	O
SELECT	O
or	O
data	B-Language
manipulation	I-Language
language	I-Language
(	O
DML	O
)	O
statement	O
(	O
INSERT	O
,	O
UPDATE	O
,	O
DELETE	O
,	O
or	O
MERGE	O
)	O
.	O
</s>
<s>
A	O
cursor	B-Language
holds	O
the	O
rows	O
(	O
one	O
or	O
more	O
)	O
returned	O
by	O
a	O
SQL	B-Language
statement	O
.	O
</s>
<s>
The	O
set	O
of	O
rows	O
the	O
cursor	B-Language
holds	O
is	O
referred	O
to	O
as	O
the	O
active	O
set	O
.	O
</s>
<s>
A	O
cursor	B-Language
can	O
be	O
explicit	O
or	O
implicit	O
.	O
</s>
<s>
In	O
a	O
FOR	B-Language
loop	I-Language
,	O
an	O
explicit	O
cursor	B-Language
shall	O
be	O
used	O
if	O
the	O
query	O
will	O
be	O
reused	O
,	O
otherwise	O
an	O
implicit	O
cursor	B-Language
is	O
preferred	O
.	O
</s>
<s>
If	O
using	O
a	O
cursor	B-Language
inside	O
a	O
loop	O
,	O
use	O
a	O
FETCH	O
is	O
recommended	O
when	O
needing	O
to	O
bulk	O
collect	O
or	O
when	O
needing	O
dynamic	O
SQL	B-Language
.	O
</s>
<s>
As	O
a	O
procedural	B-Application
language	I-Application
by	O
definition	O
,	O
PL/SQL	B-Language
provides	O
several	O
iteration	B-Algorithm
constructs	O
,	O
including	O
basic	O
LOOP	O
statements	O
,	O
WHILE	O
loops	O
,	O
FOR	B-Language
loops	I-Language
,	O
and	O
Cursor	B-Language
FOR	B-Language
loops	I-Language
.	O
</s>
<s>
Since	O
Oracle	B-Application
7.3	O
the	O
REF	O
CURSOR	B-Language
type	O
was	O
introduced	O
to	O
allow	O
recordsets	O
to	O
be	O
returned	O
from	O
stored	B-General_Concept
procedures	I-General_Concept
and	O
functions	O
.	O
</s>
<s>
Oracle	B-Application
9i	O
introduced	O
the	O
predefined	O
SYS_REFCURSOR	O
type	O
,	O
meaning	O
we	O
no	O
longer	O
have	O
to	O
define	O
our	O
own	O
REF	O
CURSOR	B-Language
types	O
.	O
</s>
<s>
Loops	O
can	O
be	O
terminated	O
by	O
using	O
the	O
EXIT	O
keyword	O
,	O
or	O
by	O
raising	O
an	O
exception	B-General_Concept
.	O
</s>
<s>
Cursor-for	O
loops	O
automatically	O
open	O
a	O
cursor	B-Language
,	O
read	O
in	O
their	O
data	O
and	O
close	O
the	O
cursor	B-Language
again	O
.	O
</s>
<s>
As	O
an	O
alternative	O
,	O
the	O
PL/SQL	B-Language
programmer	O
can	O
pre-define	O
the	O
cursor	B-Language
's	O
SELECT-statement	O
in	O
advance	O
to	O
(	O
for	O
example	O
)	O
allow	O
re-use	O
or	O
make	O
the	O
code	O
more	O
understandable	O
(	O
especially	O
useful	O
in	O
the	O
case	O
of	O
long	O
or	O
complex	O
queries	O
)	O
.	O
</s>
<s>
The	O
concept	O
of	O
the	O
person_code	O
within	O
the	O
FOR-loop	B-Language
gets	O
expressed	O
with	O
dot-notation	O
(	O
"	O
.	O
</s>
<s>
While	O
programmers	O
can	O
readily	O
embed	O
Data	B-Language
Manipulation	I-Language
Language	I-Language
(	O
DML	O
)	O
statements	O
directly	O
into	O
PL/SQL	B-Language
code	O
using	O
straightforward	O
SQL	B-Language
statements	O
,	O
Data	B-Language
Definition	I-Language
Language	I-Language
(	O
DDL	O
)	O
requires	O
more	O
complex	O
"	O
Dynamic	O
SQL	B-Language
"	O
statements	O
in	O
the	O
PL/SQL	B-Language
code	O
.	O
</s>
<s>
However	O
,	O
DML	O
statements	O
underpin	O
the	O
majority	O
of	O
PL/SQL	B-Language
code	O
in	O
typical	O
software	O
applications	O
.	O
</s>
<s>
In	O
the	O
case	O
of	O
PL/SQL	B-Language
dynamic	O
SQL	B-Language
,	O
early	O
versions	O
of	O
the	O
Oracle	B-General_Concept
Database	I-General_Concept
required	O
the	O
use	O
of	O
a	O
complicated	O
Oracle	B-Application
DBMS_SQL	O
package	B-Architecture
library	O
.	O
</s>
<s>
More	O
recent	O
versions	O
have	O
however	O
introduced	O
a	O
simpler	O
"	O
Native	O
Dynamic	O
SQL	B-Language
"	O
,	O
along	O
with	O
an	O
associated	O
EXECUTE	O
IMMEDIATE	O
syntax	O
.	O
</s>
<s>
PL/SQL	B-Language
works	O
analogously	O
to	O
the	O
embedded	O
procedural	B-Application
languages	I-Application
associated	O
with	O
other	O
relational	B-Application
databases	I-Application
.	O
</s>
<s>
For	O
example	O
,	O
Sybase	B-Application
ASE	I-Application
and	O
Microsoft	B-Application
SQL	I-Application
Server	I-Application
have	O
Transact-SQL	B-Language
,	O
PostgreSQL	B-Application
has	O
PL/pgSQL	B-Language
(	O
which	O
emulates	O
PL/SQL	B-Language
to	O
an	O
extent	O
)	O
,	O
MariaDB	B-Application
includes	O
a	O
PL/SQL	B-Language
compatibility	O
parser	O
,	O
and	O
IBM	B-Application
Db2	I-Application
includes	O
SQL	B-Language
Procedural	B-Application
Language	I-Application
,	O
</s>
<s>
which	O
conforms	O
to	O
the	O
ISO	B-Language
SQL	I-Language
’s	O
SQL/PSM	B-Language
standard	O
.	O
</s>
<s>
The	O
designers	O
of	O
PL/SQL	B-Language
modeled	O
its	O
syntax	O
on	O
that	O
of	O
Ada	B-Language
.	O
</s>
<s>
Both	O
Ada	B-Language
and	O
PL/SQL	B-Language
have	O
Pascal	B-Application
as	O
a	O
common	O
ancestor	O
,	O
and	O
so	O
PL/SQL	B-Language
also	O
resembles	O
Pascal	B-Application
in	O
most	O
aspects	O
.	O
</s>
<s>
However	O
,	O
the	O
structure	O
of	O
a	O
PL/SQL	B-Language
package	B-Architecture
does	O
not	O
resemble	O
the	O
basic	O
Object	B-Language
Pascal	I-Language
program	O
structure	O
as	O
implemented	O
by	O
a	O
Borland	B-Language
Delphi	I-Language
or	O
Free	B-Operating_System
Pascal	I-Operating_System
unit	O
.	O
</s>
<s>
Programmers	O
can	O
define	O
public	O
and	O
private	O
global	O
data-types	O
,	O
constants	O
,	O
and	O
static	O
variables	O
in	O
a	O
PL/SQL	B-Language
package	B-Architecture
.	O
</s>
<s>
PL/SQL	B-Language
also	O
allows	O
for	O
the	O
definition	O
of	O
classes	O
and	O
instantiating	O
these	O
as	O
objects	O
in	O
PL/SQL	B-Language
code	O
.	O
</s>
<s>
This	O
resembles	O
usage	O
in	O
object-oriented	B-Language
programming	I-Language
languages	I-Language
like	O
Object	B-Language
Pascal	I-Language
,	O
C++	B-Language
and	O
Java	B-Language
.	O
</s>
<s>
PL/SQL	B-Language
refers	O
to	O
a	O
class	O
as	O
an	O
"	O
Abstract	O
Data	O
Type	O
"	O
(	O
ADT	O
)	O
or	O
"	O
User	O
Defined	O
Type	O
"	O
(	O
UDT	O
)	O
,	O
and	O
defines	O
it	O
as	O
an	O
Oracle	B-Application
SQL	B-Language
data-type	O
as	O
opposed	O
to	O
a	O
PL/SQL	B-Language
user-defined	O
type	O
,	O
allowing	O
its	O
use	O
in	O
both	O
the	O
Oracle	B-Application
SQL	B-Language
Engine	O
and	O
the	O
Oracle	B-Application
PL/SQL	B-Language
engine	O
.	O
</s>
<s>
The	O
constructor	O
and	O
methods	O
of	O
an	O
Abstract	O
Data	O
Type	O
are	O
written	O
in	O
PL/SQL	B-Language
.	O
</s>
<s>
The	O
resulting	O
Abstract	O
Data	O
Type	O
can	O
operate	O
as	O
an	O
object	O
class	O
in	O
PL/SQL	B-Language
.	O
</s>
<s>
Such	O
objects	O
can	O
also	O
persist	O
as	O
column	O
values	O
in	O
Oracle	B-General_Concept
database	I-General_Concept
tables	O
.	O
</s>
<s>
PL/SQL	B-Language
is	O
fundamentally	O
distinct	O
from	O
Transact-SQL	B-Language
,	O
despite	O
superficial	O
similarities	O
.	O
</s>
<s>
Porting	O
code	O
from	O
one	O
to	O
the	O
other	O
usually	O
involves	O
non-trivial	O
work	O
,	O
not	O
only	O
due	O
to	O
the	O
differences	O
in	O
the	O
feature	O
sets	O
of	O
the	O
two	O
languages	O
,	O
but	O
also	O
due	O
to	O
the	O
very	O
significant	O
differences	O
in	O
the	O
way	O
Oracle	B-Application
and	O
SQL	B-Application
Server	I-Application
deal	O
with	O
concurrency	B-Operating_System
and	O
locking	B-Operating_System
.	O
</s>
<s>
The	O
StepSqlite	O
product	O
is	O
a	O
PL/SQL	B-Language
compiler	O
for	O
the	O
popular	O
small	O
database	O
SQLite	B-Language
which	O
supports	O
a	O
subset	O
of	O
PL/SQL	B-Language
syntax	O
.	O
</s>
<s>
Oracle	B-Application
's	O
Berkeley	B-Language
DB	I-Language
11g	O
R2	O
release	O
added	O
support	O
for	O
SQL	B-Language
based	O
on	O
the	O
popular	O
SQLite	B-Language
API	O
by	O
including	O
a	O
version	O
of	O
SQLite	B-Language
in	O
Berkeley	B-Language
DB	I-Language
.	O
</s>
<s>
Consequently	O
,	O
StepSqlite	O
can	O
also	O
be	O
used	O
as	O
a	O
third-party	O
tool	O
to	O
run	O
PL/SQL	B-Language
code	O
on	O
Berkeley	B-Language
DB	I-Language
.	O
</s>
