| Server IP : 185.86.78.101 / Your IP : 216.73.216.213 Web Server : Apache System : Linux 675867-vds-valikoshka1996.gmhost.pp.ua 5.4.0-150-generic #167-Ubuntu SMP Mon May 15 17:35:05 UTC 2023 x86_64 User : www ( 1000) PHP Version : 7.4.33 Disable Function : passthru,exec,system,putenv,chroot,chgrp,chown,shell_exec,popen,proc_open,pcntl_exec,ini_alter,ini_restore,dl,openlog,syslog,readlink,symlink,popepassthru,pcntl_alarm,pcntl_fork,pcntl_waitpid,pcntl_wait,pcntl_wifexited,pcntl_wifstopped,pcntl_wifsignaled,pcntl_wifcontinued,pcntl_wexitstatus,pcntl_wtermsig,pcntl_wstopsig,pcntl_signal,pcntl_signal_dispatch,pcntl_get_last_error,pcntl_strerror,pcntl_sigprocmask,pcntl_sigwaitinfo,pcntl_sigtimedwait,pcntl_exec,pcntl_getpriority,pcntl_setpriority,imap_open,apache_setenv MySQL : OFF | cURL : ON | WGET : ON | Perl : ON | Python : OFF | Sudo : ON | Pkexec : OFF Directory : /www/server/mysql/mysql-test/r/ |
Upload File : |
DROP TABLE IF EXISTS t1, t2, t3, t4, t5;
CREATE TABLE t1 (c1 varchar(100)) ENGINE=MyISAM;
CREATE TABLE t2 (c1 varchar(100)) ENGINE=MyISAM;
CREATE TABLE t3 (c1 varchar(100)) ENGINE=InnoDB;
INSERT INTO t1 VALUES ('Ann'), ('Alice');
INSERT INTO t2 VALUES ('Bob'), ('Brian');
INSERT INTO t3 VALUES ('Chris'), ('Charlie');
CREATE TABLE t4 (c1 varchar(100)) ENGINE=MRG_MYISAM UNION=(t1,t2)
INSERT_METHOD=LAST;
CREATE TABLE t5 (c1 varchar(100)) ENGINE=MRG_MYISAM UNION=(t1,t3)
INSERT_METHOD=LAST;
SELECT * FROM t5;
ERROR HY000: Unable to open underlying table which is differently defined or of non-MyISAM type or doesn't exist
SELECT * FROM t4;
c1
Ann
Alice
Bob
Brian
ALTER TABLE t2 ENGINE=InnoDB;
SELECT * FROM t4;
ERROR HY000: Unable to open underlying table which is differently defined or of non-MyISAM type or doesn't exist
DELETE FROM t2 LIMIT 1;
SELECT * FROM t4;
ERROR HY000: Unable to open underlying table which is differently defined or of non-MyISAM type or doesn't exist
INSERT INTO t4 VALUES ('Beware');
ERROR HY000: Unable to open underlying table which is differently defined or of non-MyISAM type or doesn't exist
SELECT * FROM t4;
ERROR HY000: Unable to open underlying table which is differently defined or of non-MyISAM type or doesn't exist
SELECT * FROM t2;
c1
Brian
SELECT * FROM t1;
c1
Ann
Alice
DROP TABLE t1, t2, t3, t4, t5;