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db_create_mysql.sql: note for utf8mb4 (MySQL)

git-svn-id: https://svn.fhem.de/fhem/trunk@27240 2b470e98-0d58-463d-a4d8-8e2adae1ed80
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nasseeder1 2023-02-16 21:48:55 +00:00
parent fb17d24bbb
commit fe136dff34

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@ -2,26 +2,24 @@
# Note:
# =====
# The default installation of the MySQL/MariaDB database provides
# for the use of the <b>utf8_bin</b> collation.
# With this setting, characters up to 3 bytes long can be stored,
# which is generally sufficient for FHEM.
# However, if characters with a length of 4 bytes (e.g. emojis)
# are to be stored in the database, the utf8mb4
# character set must be used.
#
# in this case the MySQL/MariaDB database would be created with the
# for the use of the utf8mb4_bin collation.
# With this setting characters up to 4 bytes long (e.g. emojis) can be stored.
#
# If the MySQL/MariaDB version used does not offer utf8mb4 for some reason, utf8
# can be used instead.
# In this case the MySQL/MariaDB database would be created with the
# following statement:
#
# CREATE DATABASE `fhem` DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_bin;
# CREATE DATABASE `fhem` DEFAULT CHARACTER SET utf8 COLLATE utf8_bin;
#
# instead of the statement:
#
# CREATE DATABASE `fhem` DEFAULT CHARACTER SET utf8 COLLATE utf8_bin;
# CREATE DATABASE `fhem` DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_bin;
#
# shown in the first line below.
#
##################################################################################
CREATE DATABASE `fhem` DEFAULT CHARACTER SET utf8 COLLATE utf8_bin;
CREATE DATABASE `fhem` DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_bin;
CREATE USER 'fhemuser'@'%' IDENTIFIED BY 'fhempassword';
CREATE TABLE `fhem`.`history` (TIMESTAMP TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP, DEVICE varchar(64), TYPE varchar(64), EVENT varchar(512), READING varchar(64), VALUE varchar(128), UNIT varchar(32));
CREATE TABLE `fhem`.`current` (TIMESTAMP TIMESTAMP, DEVICE varchar(64), TYPE varchar(64), EVENT varchar(512), READING varchar(64), VALUE varchar(128), UNIT varchar(32));