|
GGREGATE | | 1 | 66 | | |
|* 15 | TABLE ACCESS FULL| A | 137K| 8831K| 12379 (1)| 00:02:29 |
| 16 | VIEW | | 1 | 13 | 12379 (1)| 00:02:29 |
| 17 | SORT AGGREGATE | | 1 | 66 | | |
|* 18 | TABLE ACCESS FULL | A | 85818 | 5531K| 12379 (1)| 00:02:29 |
| 19 | VIEW | | 1 | 13 | 12379 (1)| 00:02:29 |
| 20 | SORT AGGREGATE | | 1 | 66 | | |
|* 21 | TABLE ACCESS FULL | A | 111K| 7158K| 12379 (1)| 00:02:29 |
| 22 | VIEW | | 1 | 13 | 12379 (1)| 00:02:29 |
| 23 | SORT AGGREGATE | | 1 | 66 | | |
|* 24 | TABLE ACCESS FULL | A | 86539 | 5577K| 12379 (1)| 00:02:29 |
| 25 | VIEW | | 1 | 13 | 12379 (1)| 00:02:29 |
| 26 | SORT AGGREGATE | | 1 | 66 | | |
|* 27 | TABLE ACCESS FULL | A | 91587 | 5903K| 12379 (1)| 00:02:29 |
| 28 | VIEW | | 1 | 13 | 12379 (1)| 00:02:29 |
| 29 | SORT AGGREGATE | | 1 | 66 | | |
|* 30 | TABLE ACCESS FULL | A | 228K| 14M| 12379 (1)| 00:02:29 |
| 31 | VIEW | | 1 | 13 | 12379 (1)| 00:02:29 |
| 32 | SORT AGGREGATE | | 1 | 66 | | |
|* 33 | TABLE ACCESS FULL | A | 87981 | 5670K| 12379 (1)| 00:02:29 |
| 34 | VIEW | | 1 | 13 | 12379 (1)| 00:02:29 |
| 35 | SORT AGGREGATE | | 1 | 66 | | |
|* 36 | TABLE ACCESS FULL | A | 84376 | 5438K| 12379 (1)| 00:02:29 |
| 37 | VIEW | | 1 | 13 | 12379 (1)| 00:02:29 |
| 38 | SORT AGGREGATE | | 1 | 66 | | |
|* 39 | TABLE ACCESS FULL | A | 112K| 7251K| 12379 (1)| 00:02:29 |
-------------------------------------------------------------------------------------
Predicate Information (identified by operation id):
---------------------------------------------------
12 - filter("OBJECT_NAME" LIKE 'J%' OR "OBJECT_NAME" LIKE 'V%')
15 - filter("OBJECT_NAME" LIKE 'I%' OR "OBJECT_NAME" LIKE 'V%')
18 - filter("OBJECT_NAME" LIKE 'H%' OR "OBJECT_NAME" LIKE 'V%')
21 - filter("OBJECT_NAME" LIKE 'G%' OR "OBJECT_NAME" LIKE 'V%')
24 - filter("OBJECT_NAME" LIKE 'F%' OR "OBJECT_NAME" LIKE 'V%')
27 - filter("OBJECT_NAME" LIKE 'E%' OR "OBJECT_NAME" LIKE 'V%')
30 - filter("OBJECT_NAME" LIKE 'D%' OR "OBJECT_NAME" LIKE 'V%')
33 - filter("OBJECT_NAME" LIKE 'C%' OR "OBJECT_NAME" LIKE 'V%')
36 - filter("OBJECT_NAME" LIKE 'B%' OR "OBJECT_NAME" LIKE 'V%')
39 - filter("OBJECT_NAME" LIKE 'A%' OR "OBJECT_NAME" LIKE 'V%')
--后者执行计划：
SQL> explain plan for
2 select
3 sum(case when object_name like 'A%' or object_name like 'V%' then 1 else 0 end) N0,
4 sum(case when object_name like 'B%' or object_name like 'V%' then 1 else 0 end) N1,
5 sum(case when object_name like 'C%' or object_name like 'V%' then 1 else 0 end) N2,
6 sum(case when object_name like 'D%' or object_name like 'V%' then 1 else 0 end) N3,
7 sum(case when object_name like 'E%' or object_name like 'V%' then 1 else 0 end) N4,
8 sum(case when object_name like 'F%' or object_name like 'V%' then 1 else 0 end) N5,
9 sum(case when object_name like 'G%' or object_name like 'V%' then 1 else 0 end) N6,
10 sum(case when object_name like 'H%' or object_name like 'V%' then 1 else 0 end) N7,
11 sum(case when object_name like 'I%' or object_name like 'V%' then 1 else 0 end) N8,
12 sum(case when object_name like 'J%' or object_name like 'V%' then 1 else 0 end) N9
13 from a;
Explained.
Elapsed: 00:00:00.01
SQL> @getplan
'general,outline,starts'
Enter value for plan type:
PLAN_TABLE_OUTPUT
--------------------------------------------------------------------------------------------
Plan hash value: 3918351354
---------------------------------------------------------------------------
| Id | Operation | Name | Rows | Bytes | Cost (%CPU)| Time |
---------------------------------------------------------------------------
| 0 | SELECT STATEMENT | | 1 | 66 | 12349 (1)| 00:02:29 |
| 1 | SORT AGGREGATE | | 1 | 66 | | |
| 2 |