SQL:SELECT a.*, b.subjectname, c.xueduanname FROM tbl_app_resource AS a LEFT JOIN tab_subject AS b ON a.subjectid=b.subjectid LEFT JOIN tab_xueduan AS c ON a.xueduanid=c.xueduanid WHERE a.rsid in ('12535','-999.9' UNION ALL SELECT (select concat(0x7e,0x27,Hex(cast(group_concat(table_name) as char)),0x27,0x7e) FROM `information_schem','18464','18431','-7095' UNION ALL SELECT 8698,8698,8698,8698,8698,8698,8698,8698,8698,8698,8698,8698,8698,8698,8698,8698#') ERROR:You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'UNION ALL SELECT (select concat(0x7e,0x27,Hex(cast(group_concat(table_name) as c' at line 7 SQL:SELECT rsid, kppid, kppname FROM tbl_app_resource_kpp WHERE rsid IN ('17971','17969','17966','17965','17959','17957','12535','-999.9' UNION ALL SELECT (select concat(0x7e,0x27,Hex(cast(group_concat(table_name) as char)),0x27,0x7e) FROM `information_schem','18464','18431','-7095' UNION ALL SELECT 8698,8698,8698,8698,8698,8698,8698,8698,8698,8698,8698,8698,8698,8698,8698,8698#') ORDER BY kppid asc ERROR:You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'UNION ALL SELECT (select concat(0x7e,0x27,Hex(cast(group_concat(table_name) as c' at line 3 数理天地