diff --git a/数据库/oracle/oracle查询最近执行的sql.md b/数据库/oracle/oracle查询最近执行的sql.md
new file mode 100644
index 0000000..5203577
--- /dev/null
+++ b/数据库/oracle/oracle查询最近执行的sql.md
@@ -0,0 +1,42 @@
+#### 查看 Oracle 正在执行的 sql 语句以及发起的用户
+```sql
+SELECT b.sid oracleID,  
+       b.username 用户名,  
+       b.serial#,  
+       paddr,  
+       sql_text 正在执行的SQL,  
+       b.machine 计算机名称
+FROM v$process a, v$session b, v$sqlarea c  
+WHERE a.addr = b.paddr  
+   AND b.sql_hash_value = c.hash_value 
+```
+
+#### 查询当前用户正在执行的SQL
+```sql
+select a.sid,
+       a.serial#,
+       a.paddr,
+       a.machine,
+       nvl(a.sql_id, a.prev_sql_id) sql_id,
+       b.sql_text,
+       b.sql_fulltext,
+       b.executions,
+       b.first_load_time,
+       b.last_load_time,
+       b.last_active_time,
+       b.disk_reads,
+       b.direct_writes,
+       b.buffer_gets
+  from v$session a, v$sql b
+ where a.username = sys_context('USERENV', 'CURRENT_USER')
+   and a.status = 'ACTIVE' 
+   and nvl(a.sql_id, a.prev_sql_id) = b.sql_id;
+
+```
+
+#### 查看1小时内执行的sql语句,并按照执行时间倒序排序
+```sql
+select s.LAST_ACTIVE_TIME,s.SQL_TEXT,s.SQL_FULLTEXT,s.FIRST_LOAD_TIME,s.LAST_LOAD_TIME,s.EXECUTIONS from v$sql s
+where s.SQL_TEXT like '%DUAL%' and s.LAST_ACTIVE_TIME>sysdate-1/24
+order by s.LAST_ACTIVE_TIME desc
+```
\ No newline at end of file