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Rename sample and adjust documentation in sample to clarify use.

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This commit is contained in:
Anthony Tuininga 2018-05-18 14:24:52 -06:00
parent 84ee1301bc
commit 52f4e7090c
1 changed files with 9 additions and 8 deletions
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17
samples/ReturnLongs.py → samples/ReturnLobsAsStrings.py
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@ -1,5 +1,5 @@
#------------------------------------------------------------------------------
# Copyright 2016, 2017, Oracle and/or its affiliates. All rights reserved.
# Copyright 2016, 2018, Oracle and/or its affiliates. All rights reserved.
#
# Portions Copyright 2007-2015, Anthony Tuininga. All rights reserved.
#
@ -8,11 +8,12 @@
#------------------------------------------------------------------------------
#------------------------------------------------------------------------------
# ReturnLongs.py
# Returns all CLOB values as long strings and BLOB values as long raws. This
# is only useful if the lengths of the CLOB and BLOB values are well known but
# it can improve performance because there is no need to return to the database
# to get the actual values.
# ReturnLobsAsStrings.py
# Returns all CLOB values as strings and BLOB values as bytes. The
# performance of this technique is significantly better than fetching the LOBs
# and then reading the contents of the LOBs as it avoids round-trips to the
# database. Be aware, however, that this method requires contiguous memory so
# is not usable for very large LOBs.
#
# This script requires cx_Oracle 5.0 and higher.
#------------------------------------------------------------------------------
@ -49,7 +50,7 @@ for i in range(10):
connection.commit()
# fetch the data and show the results
print("CLOBS returned as longs")
print("CLOBS returned as strings")
cursor.execute("""
select
IntCol,
@ -59,7 +60,7 @@ cursor.execute("""
for intCol, value in cursor:
print("Row:", intCol, "string of length", len(value))
print()
print("BLOBS returned as longs")
print("BLOBS returned as bytes")
cursor.execute("""
select
IntCol,