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Message Posted: Mon, 29 Jan 2007 @ 18:14:21 GMT


     
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Subj:   Multi-column index COLLECT STATISTICS script
 
From:   Mark Jahnke

Can anyone provide a script that does the same thing as this script below -- except using LEFT OUTER JOIN?
     SELECT 'collect stats on ' || TRIM(databasename) || '.'
     ||TRIM(tablename) || ' index  ('
     || MAX(CASE WHEN columnposition = 1   THEN TRIM(columnname)
                                           ELSE NULL END)
     || MAX(CASE WHEN columnposition = 2   THEN ',' || TRIM(columnname)
                                           ELSE '' END)
     || MAX(CASE WHEN columnposition = 3   THEN ',' || TRIM(columnname)
                                           ELSE '' END)
     || MAX(CASE WHEN columnposition = 4   THEN ',' || TRIM(columnname)
                                           ELSE '' END)
     || MAX(CASE WHEN columnposition = 5   THEN ',' || TRIM(columnname)
                                           ELSE '' END)
     || MAX(CASE WHEN columnposition = 6   THEN ',' || TRIM(columnname)
                                           ELSE '' END)
     || MAX(CASE WHEN columnposition = 7   THEN ',' || TRIM(columnname)
                                           ELSE '' END)
     || MAX(CASE WHEN columnposition = 8   THEN ',' || TRIM(columnname)
                                           ELSE '' END)
     || MAX(CASE WHEN columnposition = 9   THEN ',' || TRIM(columnname)
                                           ELSE '' END)
     || MAX(CASE WHEN columnposition = 10 THEN ',' || TRIM(columnname)
                                           ELSE '' END)
     || MAX(CASE WHEN columnposition = 11 THEN ',' || TRIM(columnname)
                                           ELSE '' END)
     || MAX(CASE WHEN columnposition = 12 THEN ',' || TRIM(columnname)
                                           ELSE '' END)
     || ');' (title'') from dbc.indices

     group by databasename, tablename
     order by databasename , tablename;

Mark Jahnke
Guardian, New York



     
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