diff --git a/share/sql/mysql.sql b/share/sql/mysql.sql
index 327e6f1..0d852d0 100644
--- a/share/sql/mysql.sql
+++ b/share/sql/mysql.sql
@@ -1,13 +1,13 @@
-CREATE TABLE entities (id SMALLINT NOT NULL, uuid VARCHAR(36) NOT NULL, type VARCHAR(255) NOT NULL, PRIMARY KEY(id)) ENGINE = InnoDB;
+CREATE TABLE data (id SMALLINT AUTO_INCREMENT NOT NULL, channel_id SMALLINT DEFAULT NULL, timestamp BIGINT NOT NULL, value NUMERIC(5, 2) NOT NULL, PRIMARY KEY(id)) ENGINE = InnoDB;
+CREATE TABLE properties (id SMALLINT AUTO_INCREMENT NOT NULL, entity_id SMALLINT DEFAULT NULL, name VARCHAR(255) NOT NULL, value VARCHAR(255) NOT NULL, PRIMARY KEY(id)) ENGINE = InnoDB;
+CREATE TABLE entities (id SMALLINT AUTO_INCREMENT NOT NULL, uuid VARCHAR(36) NOT NULL, type VARCHAR(255) NOT NULL, PRIMARY KEY(id)) ENGINE = InnoDB;
 CREATE TABLE groups_channel (group_id SMALLINT NOT NULL, channel_id SMALLINT NOT NULL, PRIMARY KEY(group_id, channel_id)) ENGINE = InnoDB;
 CREATE TABLE groups_groups (parent_id SMALLINT NOT NULL, child_id SMALLINT NOT NULL, PRIMARY KEY(parent_id, child_id)) ENGINE = InnoDB;
-CREATE TABLE data (id SMALLINT NOT NULL, channel_id SMALLINT DEFAULT NULL, timestamp BIGINT NOT NULL, value NUMERIC(5, 2) NOT NULL, PRIMARY KEY(id)) ENGINE = InnoDB;
-CREATE TABLE tokens (id SMALLINT NOT NULL, entity_id SMALLINT DEFAULT NULL, token VARCHAR(255) NOT NULL, valid BIGINT NOT NULL, UNIQUE INDEX tokens_token_uniq (token), PRIMARY KEY(id)) ENGINE = InnoDB;
-CREATE TABLE properties (id SMALLINT NOT NULL, entity_id SMALLINT DEFAULT NULL, name VARCHAR(255) NOT NULL, value VARCHAR(255) NOT NULL, PRIMARY KEY(id)) ENGINE = InnoDB;
+CREATE TABLE tokens (id SMALLINT AUTO_INCREMENT NOT NULL, entity_id SMALLINT DEFAULT NULL, token VARCHAR(255) NOT NULL, valid BIGINT NOT NULL, UNIQUE INDEX tokens_token_uniq (token), PRIMARY KEY(id)) ENGINE = InnoDB;
+ALTER TABLE data ADD FOREIGN KEY (channel_id) REFERENCES entities(id);
+ALTER TABLE properties ADD FOREIGN KEY (entity_id) REFERENCES entities(id);
 ALTER TABLE groups_channel ADD FOREIGN KEY (group_id) REFERENCES entities(id);
 ALTER TABLE groups_channel ADD FOREIGN KEY (channel_id) REFERENCES entities(id);
 ALTER TABLE groups_groups ADD FOREIGN KEY (parent_id) REFERENCES entities(id);
 ALTER TABLE groups_groups ADD FOREIGN KEY (child_id) REFERENCES entities(id);
-ALTER TABLE data ADD FOREIGN KEY (channel_id) REFERENCES entities(id);
-ALTER TABLE tokens ADD FOREIGN KEY (entity_id) REFERENCES entities(id);
-ALTER TABLE properties ADD FOREIGN KEY (entity_id) REFERENCES entities(id)
+ALTER TABLE tokens ADD FOREIGN KEY (entity_id) REFERENCES entities(id)