include/master-slave.inc
[connection master]
connection master;
CREATE FUNCTION hello (str CHAR(20 )) RETURNS CHAR(50 ) DETERMINISTIC RETURN
CONCAT('Hello, ' , str, '!' );
CREATE FUNCTION hello (str CHAR(20 )) RETURNS CHAR(50 ) DETERMINISTIC RETURN
CONCAT('Hello, ' , str, '!' );
ERROR 42000 : FUNCTION hello already exists
connection slave;
SHOW CREATE FUNCTION hello;
Function sql_mode Create Function character_set_client collation_connection Database Collation
hello STRICT_TRANS_TABLES,ERROR_FOR_DIVISION_BY_ZERO,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION CREATE DEFINER=`root`@`localhost` FUNCTION `hello`(str CHAR(20 )) RETURNS char(50 ) CHARSET utf8mb4 COLLATE utf8mb4_uca1400_ai_ci
DETERMINISTIC
RETURN
CONCAT('Hello, ' , str, '!' ) latin1 latin1_swedish_ci utf8mb4_uca1400_ai_ci
connection master;
CREATE OR REPLACE FUNCTION IF NOT EXISTS hello (str CHAR(20 )) RETURNS CHAR(50 ) DETERMINISTIC RETURN
CONCAT('Hello, ' , str, '!' );
ERROR HY000: Incorrect usage of OR REPLACE and IF NOT EXISTS
CREATE OR REPLACE FUNCTION hello (str CHAR(20 )) RETURNS CHAR(50 ) DETERMINISTIC RETURN
CONCAT('Hello, ' , str, '!' );
SELECT hello('master' );
hello('master' )
Hello, master!
connection slave;
SELECT hello('slave' );
hello('slave' )
Hello, slave!
connection master;
CREATE FUNCTION IF NOT EXISTS hello (str CHAR(20 )) RETURNS CHAR(50 ) DETERMINISTIC RETURN
CONCAT('Hello, ' , str, '!' );
Warnings:
Note 1304 FUNCTION hello already exists
CREATE OR REPLACE FUNCTION bye (str CHAR(20 )) RETURNS CHAR(50 ) DETERMINISTIC RETURN
CONCAT('Bye, ' , str, '!' );
SELECT hello('master' );
hello('master' )
Hello, master!
SELECT bye('master' );
bye('master' )
Bye, master!
connection slave;
SELECT hello('slave' );
hello('slave' )
Hello, slave!
SELECT bye('slave' );
bye('slave' )
Bye, slave!
connection master;
DROP FUNCTION hello;
DROP FUNCTION IF EXISTS bye;
connection slave;
DROP FUNCTION hello;
ERROR 42000 : FUNCTION test.hello does not exist
DROP FUNCTION IF EXISTS bye;
Warnings:
Note 1305 FUNCTION test.bye does not exist
include/rpl_end.inc
Messung V0.5 in Prozent C=57 H=100 G=81
¤ Dauer der Verarbeitung: 0.11 Sekunden
(vorverarbeitet am 2026-10-10)
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