SELECT GROUP_CONCAT(table_name) FROM information_schema.tables

CHARACTER_SETS,CLIENT_STATISTICS,COLLATIONS,COLLATION_CHARACTER_SET_APPLICABILITY,COLUMNS,COL  N      LEGES,ENGINES,EVENTS,FILES,GLOBAL_STATUS,GLOBAL_VARIABLES,INDEX_STATISTICS,KEY_CACHES,KEY_COLUMN_USAGE,PARAMETERS,PARTITIONS,PLUGINS,PROCESSLIST,PROFILING,REFERENTIAL_CONSTRAINTS,ROUTINES,SCHEMATA,SCHEMA_PRIVILEGES,SESSION_STATUS,SESSION_VARIABLES,STATISTICS,TABLES,TABLESPACES,TABLE_CONSTRAINTS,TABLE_PRIVILEGES,TABLE_STATISTICS,TRIGGERS,USER_PRIVILEGES,USER_STATISTICS,VIEWS,INNODB_CMPMEM_RESET,INNODB_RSEG,INNODB_UNDO_LOGS,INNODB_CMPMEM,INNODB_SYS_TABLESTATS,INNODB_LOCK_WAITS,INNODB_INDEX_STATS,INNODB_CMP,INNODB_CMP_RESET,INNODB_CHANGED_PAGES,INNODB_BUFFER_POOL_PAGES,INNODB_TRX,INNODB_BUFFER_POOL_PAGES_INDEX,INNODB_LOCKS,INNODB_BUFFER_POOL_PAGES_BLOB,INNODB_SYS_TABLES,INNODB_SYS_FIELDS,INNODB_SYS_COLUMNS,INNODB_BUFFER_PAGE,INNODB_SYS_STATS,INNODB_SYS_FOREIGN,INNODB_SYS_INDEXES,XTRADB_ADMIN_COMMAND,INNODB_TABLE_STATS,INNODB_SYS_FOREIGN_COLS,INNODB_BUFFER_PAGE_LRU,INNODB_BUFFER_POOL_STATS