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break on column

原创 Linux操作系统 作者:fengjin821 时间:2009-06-18 13:04:54 0 删除 编辑
| SQL> select a1,b1,c1 from t;
|
|         A1 B1         C1
| ---------- ---------- ----------
|          1 A          X
|          1 A          Y
|          1 A          Z
|          1 B          R
|          1 B          M
|          2 B          N
|          2 C          O
|          2 C          P
|          2 C          Q
|
| 已选择9行。
|
| SQL> break on a1 on b1
| SQL> select a1,b1,c1 from t;
|
|         A1 B1         C1
| ---------- ---------- ----------
|          1 A           X
|                          Y
|                          Z
|            B           R
|                          M
|          2 B          N
|            C           O
|                          P
|                          Q
|
| 已选择9行。
|
| SQL> select * from t;
|
|         C1         C2         C3 C4
| ---------- ---------- ---------- --------------------
|          1          2          3 a
|          1          2          4 a
|          1          2          5 a
|          1          2          3 b
|          1          2          4 b
|          1          2          5 b
|          2          3          4 c
|          2          3          5 c
|          2          3          4 d
|          2          3          5 d
|          1          2          3 e
|
|         C1         C2         C3 C4
| ---------- ---------- ---------- --------------------
|          1          2          4 e
|          1          2          3 f
|          1          2          4 f
|
| 已选择14行。
|
| SQL> break on c1 on c2
| SQL> select * from t;
|
|         C1         C2         C3 C4
| ---------- ---------- ---------- --------------------
|          1          2          3 a
|                                4 a
|                                5 a
|                                3 b
|                                4 b
|                                5 b
|          2          3          4 c
|                                5 c
|                                4 d
|                                5 d
|          1          2          3 e
|
|         C1         C2         C3 C4
| ---------- ---------- ---------- --------------------
|          1          2          4 e
|                                3 f
|                                4 f
|
| 已选择14行。
|
| SQL> col c4 format a5
| SQL> l
|   1* select * from t
| SQL> /
|
|         C1         C2         C3 C4
| ---------- ---------- ---------- -----
|          1          2          3 a
|                                4 a
|                                5 a
|                                3 b
|                                4 b
|                                5 b
|          2          3          4 c
|                                5 c
|                                4 d
|                                5 d
|          1          2          3 e
|
|         C1         C2         C3 C4
| ---------- ---------- ---------- -----
|          1          2          4 e
|                                3 f
|                                4 f
|
| 已选择14行。
|
| SQL>

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