4.1.4. 数据库检测¶
4.1.4.1. MySQL¶
sleep
sleep(1)
benchmark
BENCHMARK(5000000, MD5('test'))
- 字符串连接
SELECT 'a' 'b'
SELECT CONCAT('some','string')
- version
SELECT @@version
SELECT version()
- 识别用函数
connection_id()
last_insert_id()
row_count()
4.1.4.2. Oracle¶
- 字符串连接
'a'||'oracle' --
SELECT CONCAT('some','string')
- version
SELECT banner FROM v$version
SELECT banner FROM v$version WHERE rownum=1
4.1.4.3. SQLServer¶
WAITFOR
WAITFOR DELAY '00:00:10';
SERVERNAME
SELECT @@SERVERNAME
version
SELECT @@version
- 字符串连接
SELECT 'some'+'string'
- 常量
@@pack_received
@@rowcount
4.1.4.4. PostgreSQL¶
sleep
pg_sleep(1)