| Server IP : 88.99.149.37 / Your IP : 216.73.216.141 Web Server : nginx/1.31.2 System : Linux server-88-99-149-37 6.12.0-124.56.5.el10_1.x86_64 #1 SMP PREEMPT_DYNAMIC Fri May 15 06:12:08 EDT 2026 x86_64 User : muralimurth ( 1015) PHP Version : 8.4.23 Disable Function : exec,system,passthru,shell_exec,proc_close,proc_open,dl,popen,show_source,posix_kill,posix_mkfifo,posix_getpwuid,posix_setpgid,posix_setsid,posix_setuid,posix_setgid,posix_seteuid,posix_setegid,posix_uname MySQL : OFF | cURL : ON | WGET : ON | Perl : ON | Python : OFF | Sudo : ON | Pkexec : ON Directory : /usr/local/mysql/mysql-test/main/ |
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CREATE TABLE t1(id INT); CREATE VIEW IF NOT EXISTS v1 AS SELECT * FROM t1 WHERE id>10; INSERT INTO t1 VALUES (5), (8), (10), (20), (30); SELECT * FROM t1; id 5 8 10 20 30 SELECT * FROM v1; id 20 30 CREATE VIEW v1 AS SELECT * FROM t1 WHERE id>11; ERROR 42S01: Table 'v1' already exists SELECT VIEW_DEFINITION FROM INFORMATION_SCHEMA.VIEWS WHERE TABLE_NAME='v1'; VIEW_DEFINITION select `test`.`t1`.`id` AS `id` from `test`.`t1` where `test`.`t1`.`id` > 10 CREATE VIEW IF NOT EXISTS v1 AS SELECT * FROM t1 WHERE id>12; Warnings: Note 1050 Table 'v1' already exists SELECT VIEW_DEFINITION FROM INFORMATION_SCHEMA.VIEWS WHERE TABLE_NAME='v1'; VIEW_DEFINITION select `test`.`t1`.`id` AS `id` from `test`.`t1` where `test`.`t1`.`id` > 10 CREATE OR REPLACE VIEW IF NOT EXISTS v1 AS SELECT * FROM t1 WHERE id>13; ERROR HY000: Incorrect usage of OR REPLACE and IF NOT EXISTS SELECT VIEW_DEFINITION FROM INFORMATION_SCHEMA.VIEWS WHERE TABLE_NAME='v1'; VIEW_DEFINITION select `test`.`t1`.`id` AS `id` from `test`.`t1` where `test`.`t1`.`id` > 10 CREATE OR REPLACE VIEW v1 AS SELECT * FROM t1 WHERE id>14; SELECT VIEW_DEFINITION FROM INFORMATION_SCHEMA.VIEWS WHERE TABLE_NAME='v1'; VIEW_DEFINITION select `test`.`t1`.`id` AS `id` from `test`.`t1` where `test`.`t1`.`id` > 14 INSERT INTO t1 VALUES (50), (80), (3), (2), (40); SELECT * FROM t1; id 5 8 10 20 30 50 80 3 2 40 SELECT * FROM v1; id 20 30 50 80 40 DROP TABLE IF EXISTS v1; Warnings: Note 1965 'test.v1' is a view DROP VIEW IF EXISTS v1; DROP VIEW IF EXISTS v1; Warnings: Note 4092 Unknown VIEW: 'test.v1' DROP VIEW IF EXISTS t1; Warnings: Warning 1347 'test.t1' is not of type 'VIEW' Note 4092 Unknown VIEW: 'test.t1' DROP TABLE t1;