set arraysize 5 : autotrace « SQL PLUS Session Environment « Oracle PL/SQL Tutorial

Oracle PL/SQL Tutorial
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Oracle PL/SQL Tutorial » SQL PLUS Session Environment » autotrace 
29. 36. 4. set arraysize 5
SQL>
SQL> create table t as select from all_objects;

Table created.

SQL>
SQL> set autotrace traceonly statistics;
SQL>
SQL> set arraysize 2
SQL> select from t;

12652 rows selected.


Statistics
----------------------------------------------------------
        288  recursive calls
          0  db block gets
       6498  consistent gets
        160  physical reads
          0  redo size
    1312833  bytes sent via SQL*Net to client
      69955  bytes received via SQL*Net from client
       6327  SQL*Net roundtrips to/from client
          0  sorts (memory)
          0  sorts (disk)
      12652  rows processed

SQL>
SQL> set arraysize 5
SQL> select from t;

12652 rows selected.


Statistics
----------------------------------------------------------
          0  recursive calls
          0  db block gets
       2672  consistent gets
          0  physical reads
          0  redo size
     830868  bytes sent via SQL*Net to client
      28210  bytes received via SQL*Net from client
       2532  SQL*Net roundtrips to/from client
          0  sorts (memory)
          0  sorts (disk)
      12652  rows processed

SQL> set arraysize 10
SQL> select from t;

12652 rows selected.


Statistics
----------------------------------------------------------
          0  recursive calls
          0  db block gets
       1416  consistent gets
          0  physical reads
          0  redo size
     670213  bytes sent via SQL*Net to client
      14295  bytes received via SQL*Net from client
       1267  SQL*Net roundtrips to/from client
          0  sorts (memory)
          0  sorts (disk)
      12652  rows processed

SQL> set arraysize 15
SQL> select from t;

12652 rows selected.


Statistics
----------------------------------------------------------
          0  recursive calls
          0  db block gets
       1004  consistent gets
          0  physical reads
          0  redo size
     616619  bytes sent via SQL*Net to client
       9653  bytes received via SQL*Net from client
        845  SQL*Net roundtrips to/from client
          0  sorts (memory)
          0  sorts (disk)
      12652  rows processed

SQL> set arraysize 100
SQL> select from t;

12652 rows selected.


Statistics
----------------------------------------------------------
          0  recursive calls
          0  db block gets
        289  consistent gets
          0  physical reads
          0  redo size
     525560  bytes sent via SQL*Net to client
       1766  bytes received via SQL*Net from client
        128  SQL*Net roundtrips to/from client
          0  sorts (memory)
          0  sorts (disk)
      12652  rows processed

SQL> set arraysize 5000
SQL> select from t;

12652 rows selected.


Statistics
----------------------------------------------------------
          0  recursive calls
          0  db block gets
        167  consistent gets
          0  physical reads
          0  redo size
     509812  bytes sent via SQL*Net to client
        402  bytes received via SQL*Net from client
          4  SQL*Net roundtrips to/from client
          0  sorts (memory)
          0  sorts (disk)
      12652  rows processed

SQL> set autotrace off
SQL>
SQL> drop table t;

Table dropped.

SQL>
SQL>
29. 36. autotrace
29. 36. 1. Autotrace explain a select statement
29. 36. 2. autotrace traceonly statistics
29. 36. 3. set autotrace traceonly statistics to trace a function
29. 36. 4. set arraysize 5
29. 36. 5. Introduction to SQL Tuning - Workshop
29. 36. 6. set autotrace traceonly explain for bitmap index
29. 36. 7. set autotrace traceonly explain, and condition
29. 36. 8. set autotrace traceonly statistics
29. 36. 9. set autotrace traceonly statistics for 'select * from tableName'
29. 36. 10. AUTOTRACE exists (subquery)
29. 36. 11. AUTOTRACE table joining
29. 36. 12. AUTOTRACE table joining and aggregate function
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