Oracle數據庫的狀態查詢
阿新 • • 發佈：2017-10-28
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本文來源：huang_xw 的《Oracle數據庫的狀態查詢》
1 狀態查詢
|
啟動狀態 |
SQL語句 |
結果 |
|
nomount |
select status from v$instance; |
STARTED |
|
select open_mode from v$database; |
ERROR at line 1: ORA-01507: database not mounted | |
|
mount |
select status from v$instance; |
MOUNTED |
|
select open_mode from v$database; |
MOUNTED | |
|
open |
select status from
v$instance; |
OPEN |
|
select open_mode from v$database; |
READ WRITE 或者 READ ONLY |
2 實驗過程
1 SQL> startup nomount; 2 ORACLE instance started. 3 4 Total System Global Area 125829120 bytes 5 Fixed Size 1247684 bytes 6 Variable Size 92276284 bytes 7 Database Buffers 25165824 bytes 8Redo Buffers 7139328 bytes 9 10 SQL> select status from v$instance; 11 12 STATUS 13 ------------ 14 STARTED 15 16 SQL> select open_mode from v$database; 17 select open_mode from v$database 18 * 19 ERROR at line 1: 20 ORA-01507: database not mounted 21 22 SQL> alter database mount; 2324 Database altered. 25 26 SQL> select status from v$instance; 27 28 STATUS 29 ------------ 30 MOUNTED 31 32 SQL> select open_mode from v$database; 33 34 OPEN_MODE 35 ---------- 36 MOUNTED 37 38 SQL> alter database open; 39 40 Database altered. 41 42 SQL> select status from v$instance; 43 44 STATUS 45 ------------ 46 OPEN 47 48 SQL> select open_mode from v$database; 49 50 OPEN_MODE 51 ---------- 52 READ WRITE
Oracle數據庫的狀態查詢