https://asktom.oracle.com/pls/asktom/f?p=100:11:::::P11_QUESTION_ID:1163635055580
for i in 1 .. 10000
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create table t1as select sql_textfrom v$sqlarea;
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alter table t1add sql_text_wo_constantsvarchar2(1000);
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create or replace function
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remove_constants( p_queryin varchar2 ) return varchar2
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as
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l_querylong;
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l_charvarchar2(1);
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l_in_quotes booleandefault FALSE;
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begin
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for iin 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 iin 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 t1set 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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/
