@@header

/*
*
*  Author     : Vishal Gupta
*  Purpose    : Display Statistics of a table (including part, sub-par, ind, ind-part, ind-subpart)
*  Parameters : 1 - OWNER               (% - wildchar, \ - escape char, default is '%')
*               2 - Table Name          (% - wildchar, \ - escape char, default is '%') 
*               3 - Column Name         (% - wildchar, \ - escape char, default is '%') 
*               4 - Partition Name      (% - wildchar, \ - escape char, default is '%') 
*               5 - Sub-Partition Name  (% - wildchar, \ - escape char, default is '%') 
*               6 - object_type         (% - wildchar, \ - escape char, default is 'TABLE') 
*               
*
*  Revision History:
*  ===================
*  Date       Author        Description
*  ---------  ------------  -----------------------------------------
*  30-Jul-15  Vishal Gupta  Increased size of SampleSize column
*  01-Oct-12  Vishal Gupta  Created
*
*
*/


/************************************
*  INPUT PARAMETERS
************************************/
UNDEFINE owner
UNDEFINE table_name
UNDEFINE column_name
UNDEFINE partition_name
UNDEFINE subpartition_name
UNDEFINE object_type

DEFINE owner="&&1"
DEFINE table_name="&&2"
DEFINE column_name="&&3"
DEFINE partition_name="&&4"
DEFINE subpartition_name="&&5"
DEFINE object_type="&&6"


COLUMN  _owner             NEW_VALUE owner             NOPRINT
COLUMN  _table_name        NEW_VALUE table_name        NOPRINT
COLUMN  _column_name       NEW_VALUE column_name       NOPRINT
COLUMN  _partition_name    NEW_VALUE partition_name    NOPRINT
COLUMN  _subpartition_name NEW_VALUE subpartition_name NOPRINT
COLUMN  _object_type       NEW_VALUE object_type       NOPRINT

set term off
SELECT CASE 
           WHEN INSTR('&&owner','.') != 0 THEN SUBSTR(UPPER('&&owner'),1,INSTR('&&owner','.')-1) 
           ELSE DECODE(UPPER('&&owner'),'','%',UPPER('&&owner')) 
       END                                                                 "_owner"
     , CASE 
           WHEN INSTR('&&owner','.') != 0 THEN SUBSTR(UPPER('&&owner'),INSTR('&&owner','.')+1) 
           ELSE DECODE(UPPER('&&table_name'),'','%',UPPER('&&table_name')) 
       END                                                                 "_table_name"
     , DECODE('&&column_name','','%',UPPER('&&column_name'))               "_column_name"
     , DECODE('&&partition_name','','%',UPPER('&&partition_name'))         "_partition_name"
     , DECODE('&&subpartition_name','','%',UPPER('&&subpartition_name'))   "_subpartition_name"
     , DECODE('&&object_type','','TABLE',UPPER('&&object_type'))           "_object_type"
FROM DUAL;
set term on


PROMPT
PROMPT ***********************************************************************
PROMPT *  C O L U M N     S T A T I S T I C S
PROMPT *
PROMPT *  Input Parameters 
PROMPT *  - Table Owner       = '&&owner'
PROMPT *  - Table Name        = '&&table_name'
PROMPT *  - Column Name       = '&&column_name'
PROMPT *  - Partition Name    = '&&partition_name'
PROMPT *  - SubPartition Name = '&&subpartition_name'
PROMPT *  - Object Type       = '&&object_type'
PROMPT ***********************************************************************

COLUMN object_name             HEADING "TableName"                FORMAT a45
COLUMN Object_type             HEADING "Object|Type"              FORMAT a8
COLUMN column_name             HEADING "ColumnName"               FORMAT a25
COLUMN global_stats            HEADING "G|l|o|b|a|l"              FORMAT a1  TRUNCATE
COLUMN last_analyzed           HEADING "LastAnalyzed"             FORMAT a18
COLUMN user_stats              HEADING "U|s|e|r"                  FORMAT a1  TRUNCATE
COLUMN Col_Size_MB             HEADING "Size (MB)"                FORMAT 999,999
COLUMN sample_size             HEADING "SampleSize"               FORMAT 999,999,999,999
COLUMN avg_col_len             HEADING "Avg|Col|Len"              FORMAT 999
COLUMN num_distinct            HEADING "NumDistinct"              FORMAT 99,999,999,999
COLUMN num_nulls               HEADING "NumNulls"                 FORMAT 9,999,999,999
COLUMN density                 HEADING "Density"                  FORMAT 9.999999999999999
COLUMN histogram               HEADING "Histogram"               FORMAT a15
COLUMN num_buckets             HEADING "Num|Buc|ket"              FORMAT 999

SELECT 'TABLE' object_type
     , s.owner || '.' || s.table_name object_name
     , s.column_name
     , TO_CHAR(s.last_analyzed,'DD-MON-YY HH24:Mi:SS') last_analyzed
     , s.global_stats
     , s.user_stats
     , ROUND(( (t.num_rows - s.num_nulls) * (s.avg_col_len)) / power(1024,2)) Col_Size_MB 
     , s.sample_size
     , s.avg_col_len
     , s.num_distinct
     , s.num_nulls
     --, s.low_value
     --, s.high_value
     , s.density
     , s.histogram
     , s.num_buckets
  FROM dba_tab_statistics t
       JOIN dba_tab_col_statistics s ON s.owner = t.owner AND s.table_name = t.table_name AND t.partition_name IS NULL
 WHERE t.owner                      LIKE '&&owner'   ESCAPE '\'
   AND t.table_name                 LIKE '&&table_name' ESCAPE '\'
   AND s.column_name                LIKE '&&column_name' ESCAPE '\'
   AND 'TABLE'                      LIKE '&&object_type' ESCAPE '\'
/*
UNION ALL
SELECT 'PART' object_type
     , s.owner || '.' || s.table_name 
       || NVL2(s.partition_name,':'||s.partition_name,'')      object_name
     , s.column_name
     , TO_CHAR(s.last_analyzed,'DD-MON-YY HH24:Mi:SS') last_analyzed
     , s.global_stats
     , s.user_stats
     , ROUND(( (t.num_rows - s.num_nulls) * (s.avg_col_len)) / power(1024,2)) Col_Size_MB 
     , s.sample_size
     , s.avg_col_len
     , s.num_distinct
     , s.num_nulls
     --, s.low_value
     --, s.high_value
     , ROUND(s.density,-9) density
     , s.histogram
     , s.num_buckets
  FROM dba_part_col_statistics s
 WHERE s.owner                      LIKE '&&owner'   ESCAPE '\'
   AND s.table_name                 LIKE '&&table_name' ESCAPE '\'
   AND s.column_name                LIKE '&&column_name' ESCAPE '\'
   AND NVL(s.partition_name,'%')    LIKE '&&partition_name' ESCAPE '\'
   AND 'PARTITION'                  LIKE '&&object_type' ESCAPE '\'
UNION ALL
SELECT 'SUBPART' object_type
     , s.owner || '.' || s.table_name 
       || NVL2(s.subpartition_name,':'||s.subpartition_name,'')
       object_name
     , s.column_name
     , TO_CHAR(s.last_analyzed,'DD-MON-YY HH24:Mi:SS') last_analyzed
     , s.global_stats
     , s.user_stats
     , s.sample_size
     , s.avg_col_len
     , s.num_distinct
     , s.num_nulls
     --, s.low_value
     --, s.high_value
     , ROUND(s.density,-9) density
     , s.histogram
     , s.num_buckets
  FROM dba_subpart_col_statistics s
 WHERE s.owner                      LIKE '&&owner'   ESCAPE '\'
   AND s.table_name                 LIKE '&&table_name' ESCAPE '\'
   AND s.column_name                LIKE '&&column_name' ESCAPE '\'
   AND NVL(s.subpartition_name,'%') LIKE '&&subpartition_name' ESCAPE '\'
   AND 'SUBPARTITION'               LIKE '&&object_type' ESCAPE '\'
*/   
ORDER BY object_name
       , column_name
/




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