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create table t1 as select sql_text from v$sqlarea;
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alter table t1 add sql_text_wo_constants varchar2(1000);
-
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create or replace function
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remove_constants( p_query in varchar2 ) return varchar2
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as
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l_query long;
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l_char varchar2(1);
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l_in_quotes boolean default FALSE;
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begin
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for i in 1 .. length( p_query )
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loop
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l_char := substr(p_query,i,1);
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if ( l_char = '''' and l_in_quotes )
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then
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l_in_quotes := FALSE;
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elsif ( l_char = '''' and NOT l_in_quotes )
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then
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l_in_quotes := TRUE;
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l_query := l_query || '''#';
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end if;
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if ( NOT l_in_quotes ) then
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l_query := l_query || l_char;
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end if;
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end loop;
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l_query := translate( l_query, '0123456789', '@@@@@@@@@@' );
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for i in 0 .. 8 loop
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l_query := replace( l_query, lpad('@',10-i,'@'), '@' );
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l_query := replace( l_query, lpad(' ',10-i,' '), ' ' );
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end loop;
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return upper(l_query);
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end;
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/
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update t1 set sql_text_wo_constants = remove_constants(sql_text);
set linesize 200;
col sql_text_wo_constants format a100;
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select sql_text_wo_constants, count(*)
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from t1
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group by sql_text_wo_constants
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having count(*) > 100
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order by 2
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/
