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a. show tables»òshow tables from database_name; // ÏÔʾµ±Ç°Êý¾Ý¿âÖÐËùÓбíµÄÃû³Æ
b. show databases; // ÏÔʾmysqlÖÐËùÓÐÊý¾Ý¿âµÄÃû³Æ
c. show columns from table_name from database_name; »òshow columns from database_name.table_name; // ÏÔʾ±íÖÐÁÐÃû³Æ
d. show grants for user_name; // ÏÔʾһ¸öÓû§µÄȨÏÞ£¬ÏÔʾ½á¹ûÀàËÆÓÚgrant ÃüÁî
e. show index from table_name; // ÏÔʾ±íµÄË÷Òý
f. show status; // ÏÔÊ¾Ò»Ð©ÏµÍ³ÌØ¶¨×ÊÔ´µÄÐÅÏ¢£¬ÀýÈ磬ÕýÔÚÔËÐеÄÏß³ÌÊýÁ¿
g. show variables; // ÏÔʾϵͳ±äÁ¿µÄÃû³ÆºÍÖµ
h. show processlist; // ÏÔʾϵͳÖÐÕýÔÚÔËÐеÄËùÓнø³Ì£¬Ò²¾ÍÊǵ±Ç°ÕýÔÚÖ´ÐеIJéѯ¡£´ó¶àÊýÓû§¿ÉÒԲ鿴
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i. show table status; // ÏÔʾµ±Ç°Ê¹ÓûòÕßÖ¸¶¨µÄdatabaseÖеÄÿ¸ö±íµÄÐÅÏ¢¡£ÐÅÏ¢°üÀ¨±íÀàÐͺͱíµÄ×îиüÐÂʱ¼ä
j. show privileges; // ÏÔʾ·þÎñÆ÷ËùÖ§³ÖµÄ²»Í¬È¨ÏÞ
k. show create database database_name; // ÏÔʾcreate database Óï¾äÊÇ·ñÄܹ»´´½¨Ö¸¶¨µÄÊý¾Ý¿â
l. show create table table_name; // ÏÔʾcreate database Óï¾äÊÇ·ñÄܹ»´´½¨Ö¸¶¨µÄÊý¾Ý¿â
m. show engies; // ÏÔʾ°²×°ÒÔºó¿ÉÓõĴ洢ÒýÇæºÍĬÈÏÒýÇæ¡£
n. show innodb status; // ÏÔʾinnoDB´æ´¢ÒýÇæµÄ״̬
o. show logs; // ÏÔʾBDB´æ´¢ÒýÇæµÄÈÕÖ¾
p. show warnings; // ÏÔʾ×îºóÒ»¸öÖ´ÐеÄÓï¾äËù²úÉúµÄ´íÎó¡¢¾¯¸æºÍ֪ͨ
q. show errors; // Ö»ÏÔʾ×îºóÒ»¸öÖ´ÐÐÓï¾äËù²úÉúµÄ´íÎó
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