Server IP : 172.67.216.182 / Your IP : 162.158.189.108 Web Server : Apache System : Linux krdc-ubuntu-s-2vcpu-4gb-amd-blr1-01.localdomain 5.15.0-142-generic #152-Ubuntu SMP Mon May 19 10:54:31 UTC 2025 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 : ON Directory : /www/server/mysql/src/mysql-test/suite/engines/funcs/r/ |
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DROP TABLE IF EXISTS t1; CREATE TABLE t1(c1 CHAR(100) NULL); INSERT INTO t1 (c1) VALUES('NULL'); INSERT INTO t1 (c1) VALUES(''); INSERT INTO t1 (c1) VALUES('x'); INSERT INTO t1 (c1) VALUES('123456789.123456789.123456789.123456789.123456789.123456789.123456789.123456789.123456789.123456789.'); SELECT * FROM t1; c1 NULL x 123456789.123456789.123456789.123456789.123456789.123456789.123456789.123456789.123456789.123456789. SELECT COUNT(c1) AS total_rows FROM t1; total_rows 4 SELECT COUNT(c1) AS null_rows FROM t1 WHERE c1 IS NULL; null_rows 0 SELECT COUNT(c1) AS not_null_rows FROM t1 WHERE c1 IS NOT NULL; not_null_rows 4 DROP TABLE t1; CREATE TABLE t1(c1 VARCHAR(100) NULL); INSERT INTO t1 (c1) VALUES('NULL'); INSERT INTO t1 (c1) VALUES(''); INSERT INTO t1 (c1) VALUES('x'); INSERT INTO t1 (c1) VALUES('123456789.123456789.123456789.123456789.123456789.123456789.123456789.123456789.123456789.123456789.'); SELECT * FROM t1; c1 NULL x 123456789.123456789.123456789.123456789.123456789.123456789.123456789.123456789.123456789.123456789. SELECT COUNT(c1) AS total_rows FROM t1; total_rows 4 SELECT COUNT(c1) AS null_rows FROM t1 WHERE c1 IS NULL; null_rows 0 SELECT COUNT(c1) AS not_null_rows FROM t1 WHERE c1 IS NOT NULL; not_null_rows 4 DROP TABLE t1; CREATE TABLE t1(c1 BINARY(100) NULL); INSERT INTO t1 (c1) VALUES('NULL'); INSERT INTO t1 (c1) VALUES(''); INSERT INTO t1 (c1) VALUES('x'); INSERT INTO t1 (c1) VALUES('123456789.123456789.123456789.123456789.123456789.123456789.123456789.123456789.123456789.123456789.'); SELECT * FROM t1; c1 NULL x 123456789.123456789.123456789.123456789.123456789.123456789.123456789.123456789.123456789.123456789. SELECT COUNT(c1) AS total_rows FROM t1; total_rows 4 SELECT COUNT(c1) AS null_rows FROM t1 WHERE c1 IS NULL; null_rows 0 SELECT COUNT(c1) AS not_null_rows FROM t1 WHERE c1 IS NOT NULL; not_null_rows 4 DROP TABLE t1; CREATE TABLE t1(c1 VARBINARY(100) NULL); INSERT INTO t1 (c1) VALUES('NULL'); INSERT INTO t1 (c1) VALUES(''); INSERT INTO t1 (c1) VALUES('x'); INSERT INTO t1 (c1) VALUES('123456789.123456789.123456789.123456789.123456789.123456789.123456789.123456789.123456789.123456789.'); SELECT * FROM t1; c1 NULL x 123456789.123456789.123456789.123456789.123456789.123456789.123456789.123456789.123456789.123456789. SELECT COUNT(c1) AS total_rows FROM t1; total_rows 4 SELECT COUNT(c1) AS null_rows FROM t1 WHERE c1 IS NULL; null_rows 0 SELECT COUNT(c1) AS not_null_rows FROM t1 WHERE c1 IS NOT NULL; not_null_rows 4 DROP TABLE t1; CREATE TABLE t1(c1 BLOB(100) NULL); INSERT INTO t1 (c1) VALUES('NULL'); INSERT INTO t1 (c1) VALUES(''); INSERT INTO t1 (c1) VALUES('x'); INSERT INTO t1 (c1) VALUES('123456789.123456789.123456789.123456789.123456789.123456789.123456789.123456789.123456789.123456789.'); SELECT * FROM t1; c1 NULL x 123456789.123456789.123456789.123456789.123456789.123456789.123456789.123456789.123456789.123456789. SELECT COUNT(c1) AS total_rows FROM t1; total_rows 4 SELECT COUNT(c1) AS null_rows FROM t1 WHERE c1 IS NULL; null_rows 0 SELECT COUNT(c1) AS not_null_rows FROM t1 WHERE c1 IS NOT NULL; not_null_rows 4 DROP TABLE t1; CREATE TABLE t1(c1 TEXT(100) NULL); INSERT INTO t1 (c1) VALUES('NULL'); INSERT INTO t1 (c1) VALUES(''); INSERT INTO t1 (c1) VALUES('x'); INSERT INTO t1 (c1) VALUES('123456789.123456789.123456789.123456789.123456789.123456789.123456789.123456789.123456789.123456789.'); SELECT * FROM t1; c1 NULL x 123456789.123456789.123456789.123456789.123456789.123456789.123456789.123456789.123456789.123456789. SELECT COUNT(c1) AS total_rows FROM t1; total_rows 4 SELECT COUNT(c1) AS null_rows FROM t1 WHERE c1 IS NULL; null_rows 0 SELECT COUNT(c1) AS not_null_rows FROM t1 WHERE c1 IS NOT NULL; not_null_rows 4 DROP TABLE t1;