Stats translation script from Martin Widlake and Gary Myers

Author: gwenshap

col_high_low_val.sql

@@ -0,0 +1,64 @@
+-- col_stats
+-- Martin Widlake mdw 21/03/2003
+-- MDW 11/12/09 enhanced to include more translations of low_value/high_value
+-- pilfered from Gary Myers blog
+col owner        form a6 word wrap
+col table_name   form a15 word wrap
+col column_name  form a22 word wrap
+col data_type    form a12
+col M            form a1
+col num_vals     form 99999,999
+col dnsty        form 0.9999
+col num_nulls    form 99999,999
+col low_v        form a18
+col hi_v         form a18
+col data_type    form a10
+set lines 110
+break on owner nodup on table_name nodup
+spool col_stats.lst
+select --owner
+--      ,table_name
+      column_name
+      ,data_type
+      ,decode (nullable,'N','Y','N')  M
+      ,num_distinct num_vals
+      ,num_nulls
+      ,density dnsty
+,decode(data_type
+  ,'NUMBER'       ,to_char(utl_raw.cast_to_number(low_value))
+  ,'VARCHAR2'     ,to_char(utl_raw.cast_to_varchar2(low_value))
+  ,'NVARCHAR2'    ,to_char(utl_raw.cast_to_nvarchar2(low_value))
+  ,'BINARY_DOUBLE',to_char(utl_raw.cast_to_binary_double(low_value))
+  ,'BINARY_FLOAT' ,to_char(utl_raw.cast_to_binary_float(low_value))
+  ,'DATE',to_char(1780+to_number(substr(low_value,1,2),'XX')
+         +to_number(substr(low_value,3,2),'XX'))||'-'
+       ||to_number(substr(low_value,5,2),'XX')||'-'
+       ||to_number(substr(low_value,7,2),'XX')||' '
+       ||(to_number(substr(low_value,9,2),'XX')-1)||':'
+       ||(to_number(substr(low_value,11,2),'XX')-1)||':'
+       ||(to_number(substr(low_value,13,2),'XX')-1)
+,  low_value
+       ) low_v
+,decode(data_type
+  ,'NUMBER'       ,to_char(utl_raw.cast_to_number(high_value))
+  ,'VARCHAR2'     ,to_char(utl_raw.cast_to_varchar2(high_value))
+  ,'NVARCHAR2'    ,to_char(utl_raw.cast_to_nvarchar2(high_value))
+  ,'BINARY_DOUBLE',to_char(utl_raw.cast_to_binary_double(high_value))
+  ,'BINARY_FLOAT' ,to_char(utl_raw.cast_to_binary_float(high_value))
+  ,'DATE',to_char(1780+to_number(substr(high_value,1,2),'XX')
+         +to_number(substr(high_value,3,2),'XX'))||'-'
+       ||to_number(substr(high_value,5,2),'XX')||'-'
+       ||to_number(substr(high_value,7,2),'XX')||' '
+       ||(to_number(substr(high_value,9,2),'XX')-1)||':'
+       ||(to_number(substr(high_value,11,2),'XX')-1)||':'
+       ||(to_number(substr(high_value,13,2),'XX')-1)
+,  high_value
+       ) hi_v
+from dba_tab_columns
+where owner      like upper('&tab_own')
+and   table_name like upper(nvl('&tab_name','WHOOPS')||'%')
+ORDER BY owner,table_name,COLUMN_ID
+/
+clear colu
+spool off
+clear breaks