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	- ·¹ÄÚµå °³¼ö¸¦ ´Ü¼øÇÏ°Ô ¼¼°íÀÚ ÇÒ ¶§´Â ´ÙÀ½°ú °°ÀÌ ÇÏ¸é µÈ´Ù.
	   "select count(*) from publishers where state='NY' 
	
	- ¾î¶² ƯÁ¤ Çʵ忡¼­ µµ½Ã À̸§ÀÌ ´Ù¸¥ °æ¿ì ±¸·ìÀ» Á¤ÇÏ¿© ¼¼°íÀÚ ÇÒ ¶§´Â ´ÙÀ½°ú °°ÀÌ ÇÑ´Ù
	   "select count(city),city from publishers group by city" 
	
	
	- AS ¿¬»êÀÚ¸¦ ÀÌ¿ëÇÏ¿© µµ½ÃÀÇ °³¼ö¸¦ ¼¼¾î¼­ ƯÁ¤ÇÑ º¯¼ö¿¡ ÀúÀåÇÒ ¼ö ÀÖ´Ù.
	   "select count(city) as howmany,city from publishers group by city"