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python-cx_Oracle/samples/tutorial/solutions/query_scroll.py at master · datamk/python-cx_Oracle · GitHub
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tutorial
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solutions
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query_scroll.py
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samples
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tutorial
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solutions
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query_scroll.py
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#------------------------------------------------------------------------------
# query_scroll.py (Section 3.4)
#------------------------------------------------------------------------------
#------------------------------------------------------------------------------
# Copyright 2017, 2018, Oracle and/or its affiliates. All rights reserved.
#------------------------------------------------------------------------------
from
__future__
import
print_function
import
cx_Oracle
import
db_config
con
=
cx_Oracle
.
connect
(
db_config
.
user
,
db_config
.
pw
,
db_config
.
dsn
)
cur
=
con
.
cursor
(
scrollable
=
True
)
cur
.
execute
(
"select * from dept order by deptno"
)
cur
.
scroll
(
2
,
mode
=
"absolute"
)
# go to second row
print
(
cur
.
fetchone
())
cur
.
scroll
(
-
1
)
# go back one row
print
(
cur
.
fetchone
())
cur
.
scroll
(
1
)
# go to next row
print
(
cur
.
fetchone
())
cur
.
scroll
(
mode
=
"first"
)
# go to first row
print
(
cur
.
fetchone
())
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