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