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Improved time needed for clob-to-table conversion.
Timing before change (with dbms_lob.read):
`clob_to_table - Took:+000000000 00:00:00.012957000`
After change:
`clob_to_table - Took:+000000000 00:00:00.001236000`
Speed improved by order of magnitude.
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jgebal committed Jun 16, 2019
commit a0e98ed19f15217b57e5eba575be15e86b812921
4 changes: 3 additions & 1 deletion source/core/ut_utils.pkb
Original file line number Diff line number Diff line change
Expand Up @@ -241,7 +241,9 @@ create or replace package body ut_utils is
begin
while l_offset <= l_length loop
l_amount := a_max_amount - coalesce( length(l_last_line), 0 );
dbms_lob.read(a_clob, l_amount, l_offset, l_buffer);
-- dbms_lob.read(a_clob, l_amount, l_offset, l_buffer);
l_buffer := substr(a_clob, l_offset, l_amount);
l_amount := length(l_buffer);
l_offset := l_offset + l_amount;

l_string_results := string_to_table( l_last_line || l_buffer, a_delimiter, l_skip_leading_delimiter );
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