我在MySQL中有一个表,这样主键就是一个复合键,如下所示: +--------------+----+------------------------------+
| fk_something |我试过这样的方法: SELECT * FROM my_table WHERE id IN (1, 2) AND fk_something IN (2, 1) 但它也给了我1-1和2-2的记录...
new SuperSpeed USB device number 2 using xhci_hcdJun 22 22:22:12 host kernel: [10288570.886457] usb 2-device strings: Mfr=1, Product=2, SerialNumber=3
Jun 22 22:22:12 host kernel:
] usb 2-2: New USB device strings: Mfr=1, Product=2, SerialNumber=3[1351555.813065] usb 2-2: Manufacturer: Samsung Electronics
[1351555.813071] usb 2-2: SerialNumber] usb 2-2: reset high-speed USB device number 18
这是dmesg插入USB驱动器时返回的内容:[989699.722098] scsi7 : usb-storage 2-2:1.0
[989721.936053] usb 2-2: reset high-speed USB device number 4 using ehci_hcd[989732.180053] usb 2-2: reset high-speed USB
[21226.044538] uvcvideo 2-2:1.0: Entity type for entity Extension 8 was not initialized![21226.044547] uvcvideo 2-2:1.0: Entity type for entity Camera 1 was not initialized!2/2-2:1.0/input/input35
[21226.137559] usb 2-2: Warning!2-2: New US