2026-03-12 20:23:15

my/histo_endpoints.sql

@@ -0,0 +1,55 @@
+set verify off
+
+-- arguments:
+--          table name as SCHEMA.TABLE_NAME
+--          column name
+
+col endpoint_number format 999,999,999 head 'Endpoint|number'
+col endpoint_value format 999,999,999 head 'Endpoint|value'
+col frequency format 999,999,999 head 'Frequency'
+col endpoint_repeat_count format 999,999,999 head 'Endpoint|repeat count'
+
+
+col column_name format a30
+
+SELECT column_id,
+       column_name,
+       histogram
+FROM   user_tab_columns
+WHERE  upper(table_name) LIKE 
+				upper(CASE 
+					WHEN INSTR('&1','.') > 0 THEN 
+					    SUBSTR('&1',INSTR('&1','.')+1)
+					ELSE
+					    '&1'
+					END
+				     ) ESCAPE '\'
+	and COLUMN_NAME='&2'
+ORDER BY column_id;
+
+
+break on report skip 1
+compute sum of frequency on report
+compute sum of endpoint_repeat_count on report
+
+select
+        endpoint_number,
+        endpoint_value,
+        endpoint_number - LAG(endpoint_number, 1, 0) OVER (ORDER BY endpoint_value, endpoint_number) AS frequency,
+        endpoint_repeat_count
+from
+        dba_tab_histograms
+where
+	upper(table_name) LIKE 
+				upper(CASE 
+					WHEN INSTR('&1','.') > 0 THEN 
+					    SUBSTR('&1',INSTR('&1','.')+1)
+					ELSE
+					    '&1'
+					END
+				     ) ESCAPE '\'
+	and COLUMN_NAME='&2'
+order by
+        endpoint_number
+;
+