diff --git a/lib/date.js b/lib/date.js
index 978ede6a..20ed5097 100644
--- a/lib/date.js
+++ b/lib/date.js
@@ -97,7 +97,9 @@ export function getDateArray(data, startDate, endDate, unit) {
   const n = diff(endDate, startDate) + 1;
 
   function findData(t) {
-    const x = data.find(e => new Date(e.t).getTime() === normalize(new Date(t)).getTime());
+    const x = data.find(e => {
+      return getLocalTime(new Date(e.t)).getTime() === normalize(new Date(t)).getTime();
+    });
 
     return x?.y || 0;
   }
@@ -109,5 +111,7 @@ export function getDateArray(data, startDate, endDate, unit) {
     arr.push({ t, y });
   }
 
+  console.log({ unit, arr });
+
   return arr;
 }
diff --git a/lib/db.js b/lib/db.js
index ff7774e8..31fc07e4 100644
--- a/lib/db.js
+++ b/lib/db.js
@@ -1,5 +1,6 @@
 import { PrismaClient } from '@prisma/client';
 import chalk from 'chalk';
+import { getMetricsQuery, getPageviewsQuery, getRankingsQuery } from 'lib/queries';
 
 const options = {
   log: [
@@ -236,21 +237,7 @@ export async function getPageviews(website_id, start_at, end_at) {
 }
 
 export async function getRankings(website_id, start_at, end_at, type, table) {
-  return runQuery(
-    prisma.queryRaw(
-      `
-      select distinct "${type}" x, count(*) y
-      from "${table}"
-      where website_id=$1
-      and created_at between $2 and $3
-      group by 1
-      order by 2 desc
-      `,
-      website_id,
-      start_at,
-      end_at,
-    ),
-  );
+  return getRankingsQuery(prisma, { website_id, start_at, end_at, type, table });
 }
 
 export async function getPageviewData(
@@ -262,42 +249,10 @@ export async function getPageviewData(
   count = '*',
 ) {
   return runQuery(
-    prisma.queryRaw(
-      `
-      select date_trunc('${unit}', created_at at time zone '${timezone}') at time zone '${timezone}' t,
-      count(${count}) y
-      from pageview
-      where website_id=$1
-      and created_at between $2 and $3
-      group by 1
-      order by 1
-      `,
-      website_id,
-      start_at,
-      end_at,
-    ),
+    getPageviewsQuery(prisma, { website_id, start_at, end_at, timezone, unit, count }),
   );
 }
 
 export async function getMetrics(website_id, start_at, end_at) {
-  return runQuery(
-    prisma.queryRaw(
-      `
-      select sum(t.c) as "pageviews",
-        count(distinct t.session_id) as "uniques",
-        sum(case when t.c = 1 then t.c else 0 end) as "bounces",
-        sum(t.time) as "totaltime"
-      from (
-         select session_id,
-           date_trunc('hour', created_at),
-           count(*) c,
-           floor(extract(epoch from max(created_at) - min(created_at))) as "time"
-         from pageview
-         where website_id=${website_id}
-         and created_at between '${start_at}' and '${end_at}'
-         group by 1, 2
-     ) t;
-     `,
-    ),
-  );
+  return getMetricsQuery(prisma, { website_id, start_at, end_at });
 }
diff --git a/lib/middleware.js b/lib/middleware.js
index 1694a67a..9e46b0c8 100644
--- a/lib/middleware.js
+++ b/lib/middleware.js
@@ -1,6 +1,7 @@
 import cors from 'cors';
 import { verifySession } from './session';
 import { verifyAuthToken } from './auth';
+import { unauthorized, badRequest, serverError } from './response';
 
 export function use(middleware) {
   return (req, res) =>
@@ -17,10 +18,12 @@ export function use(middleware) {
 export const useCors = use(cors());
 
 export const useSession = use(async (req, res, next) => {
-  const session = await verifySession(req);
+  const session = await verifySession(req).catch(e => {
+    return serverError(res, e.message);
+  });
 
   if (!session) {
-    return res.status(400).end();
+    return badRequest(res);
   }
 
   req.session = session;
@@ -28,10 +31,12 @@ export const useSession = use(async (req, res, next) => {
 });
 
 export const useAuth = use(async (req, res, next) => {
-  const token = await verifyAuthToken(req);
+  const token = await verifyAuthToken(req).catch(e => {
+    return serverError(res, e.message);
+  });
 
   if (!token) {
-    return res.status(401).end();
+    return unauthorized(res);
   }
 
   req.auth = token;
diff --git a/lib/queries.js b/lib/queries.js
new file mode 100644
index 00000000..1a6e91ca
--- /dev/null
+++ b/lib/queries.js
@@ -0,0 +1,141 @@
+import moment from 'moment-timezone';
+
+const POSTGRESQL = 'postgresql';
+const MYSQL = 'mysql';
+
+export function getDatabase() {
+  return process.env.DATABASE_URL.split(':')[0];
+}
+
+export function getMetricsQuery(prisma, { website_id, start_at, end_at }) {
+  const db = getDatabase();
+
+  if (db === POSTGRESQL) {
+    return prisma.$queryRaw(
+      `
+      select sum(t.c) as "pageviews",
+        count(distinct t.session_id) as "uniques",
+        sum(case when t.c = 1 then t.c else 0 end) as "bounces",
+        sum(t.time) as "totaltime"
+      from (
+         select session_id,
+           date_trunc('hour', created_at),
+           count(*) c,
+           floor(extract(epoch from max(created_at) - min(created_at))) as "time"
+         from pageview
+         where website_id=$1
+         and created_at between $2 and $3
+         group by 1, 2
+     ) t
+     `,
+      website_id,
+      start_at,
+      end_at,
+    );
+  }
+
+  if (db === MYSQL) {
+    return prisma.$queryRaw(
+      `
+      select sum(t.c) as "pageviews",
+        count(distinct t.session_id) as "uniques",
+        sum(case when t.c = 1 then t.c else 0 end) as "bounces",
+        sum(t.time) as "totaltime"
+      from (
+         select session_id,
+           date_trunc('hour', created_at),
+           count(*) c,
+           floor(unix_timestamp(max(created_at)) - unix_timestamp(min(created_at))) as "time"
+         from pageview
+         where website_id=?
+         and created_at between ? and ?
+         group by 1, 2
+     ) t
+     `,
+      website_id,
+      start_at,
+      end_at,
+    );
+  }
+
+  return Promise.resolve({});
+}
+
+export function getPageviewsQuery(prisma, { website_id, start_at, end_at, unit, timezone, count }) {
+  const db = getDatabase();
+
+  if (db === POSTGRESQL) {
+    return prisma.$queryRaw(
+      `
+      select date_trunc('${unit}', created_at at time zone '${timezone}') t,
+      count(${count}) y
+      from pageview
+      where website_id=$1
+      and created_at between $2 and $3
+      group by 1
+      order by 1
+      `,
+      website_id,
+      start_at,
+      end_at,
+    );
+  }
+
+  if (db === MYSQL) {
+    const tz = moment.tz(timezone).format('Z');
+    return prisma.$queryRaw(
+      `
+      select date_trunc('${unit}', convert_tz(created_at,'+00:00','${tz}')) t,
+      count(${count}) y
+      from pageview
+      where website_id=?
+      and created_at between ? and ?
+      group by 1
+      order by 1
+      `,
+      website_id,
+      start_at,
+      end_at,
+    );
+  }
+
+  return Promise.resolve([]);
+}
+
+export function getRankingsQuery(prisma, { website_id, start_at, end_at, type, table }) {
+  const db = getDatabase();
+
+  if (db === POSTGRESQL) {
+    return prisma.$queryRaw(
+      `
+      select distinct ${type} x, count(*) y
+      from ${table}
+      where website_id=$1
+      and created_at between $2 and $3
+      group by 1
+      order by 2 desc
+      `,
+      website_id,
+      start_at,
+      end_at,
+    );
+  }
+
+  if (db === MYSQL) {
+    return prisma.$queryRaw(
+      `
+      select distinct ${type} x, count(*) y
+      from ${table}
+      where website_id=?
+      and created_at between ? and ?
+      group by 1
+      order by 2 desc
+      `,
+      website_id,
+      start_at,
+      end_at,
+    );
+  }
+
+  return Promise.resolve([]);
+}
diff --git a/lib/response.js b/lib/response.js
index ee6e3062..2ec4c57f 100644
--- a/lib/response.js
+++ b/lib/response.js
@@ -23,3 +23,7 @@ export function forbidden(res, msg) {
 export function methodNotAllowed(res, msg) {
   res.status(405).end(msg);
 }
+
+export function serverError(res, msg) {
+  res.status(500).end(msg);
+}
diff --git a/lib/session.js b/lib/session.js
index 901c9023..696d2bed 100644
--- a/lib/session.js
+++ b/lib/session.js
@@ -10,46 +10,47 @@ export async function verifySession(req) {
   }
 
   const { website: website_uuid, hostname, screen, language, session } = payload;
-
   const token = await parseToken(session);
 
-  if (!token || !isValidId(website_uuid) || token.website_uuid !== website_uuid) {
+  if (!isValidId(website_uuid)) {
+    throw new Error(`Invalid website: ${website_uuid}`);
+  }
+
+  if (!token || token.website_uuid !== website_uuid) {
     const { userAgent, browser, os, ip, country, device } = await getClientInfo(req, payload);
 
-    if (website_uuid) {
-      const website = await getWebsite({ website_uuid });
+    const website = await getWebsite({ website_uuid });
 
-      if (website) {
-        const { website_id } = website;
-        const session_uuid = uuid(website_id, hostname, ip, userAgent, os);
-
-        let session = await getSession({ session_uuid });
-
-        if (!session) {
-          session = await createSession(website_id, {
-            session_uuid,
-            hostname,
-            browser,
-            os,
-            screen,
-            language,
-            country,
-            device,
-          });
-        }
-
-        const { session_id } = session;
-
-        return {
-          website_id,
-          website_uuid,
-          session_id,
-          session_uuid,
-        };
-      } else {
-        throw new Error(`Invalid website: ${website_uuid}`);
-      }
+    if (!website) {
+      throw new Error(`Website not found: ${website_uuid}`);
     }
+
+    const { website_id } = website;
+    const session_uuid = uuid(website_id, hostname, ip, userAgent, os);
+
+    let session = await getSession({ session_uuid });
+
+    if (!session) {
+      session = await createSession(website_id, {
+        session_uuid,
+        hostname,
+        browser,
+        os,
+        screen,
+        language,
+        country,
+        device,
+      });
+    }
+
+    const { session_id } = session;
+
+    return {
+      website_id,
+      website_uuid,
+      session_id,
+      session_uuid,
+    };
   }
 
   return token;
diff --git a/pages/api/website/[id]/metrics.js b/pages/api/website/[id]/metrics.js
index 62ef6afc..5f4a43fe 100644
--- a/pages/api/website/[id]/metrics.js
+++ b/pages/api/website/[id]/metrics.js
@@ -7,11 +7,7 @@ export default async (req, res) => {
 
   const { id, start_at, end_at } = req.query;
 
-  const metrics = await getMetrics(
-    +id,
-    new Date(+start_at).toISOString(),
-    new Date(+end_at).toISOString(),
-  );
+  const metrics = await getMetrics(+id, new Date(+start_at), new Date(+end_at));
 
   const stats = Object.keys(metrics[0]).reduce((obj, key) => {
     obj[key] = +metrics[0][key];
diff --git a/sql/schema.mysql.sql b/sql/schema.mysql.sql
new file mode 100644
index 00000000..c437f004
--- /dev/null
+++ b/sql/schema.mysql.sql
@@ -0,0 +1,94 @@
+create table account (
+    user_id int unsigned not null auto_increment primary key,
+    username varchar(255) unique not null,
+    password varchar(60) not null,
+    is_admin bool not null default false,
+    created_at timestamp default current_timestamp,
+    updated_at timestamp default current_timestamp
+) ENGINE=InnoDB;
+
+create table website (
+    website_id int unsigned not null auto_increment primary key,
+    website_uuid varchar(36) unique not null,
+    user_id int unsigned not null,
+    name varchar(100) not null,
+    domain varchar(500),
+    created_at timestamp default current_timestamp,
+    foreign key (user_id) references account(user_id) on delete cascade
+) ENGINE=InnoDB;
+
+create table session (
+    session_id int unsigned not null auto_increment primary key,
+    session_uuid varchar(36) unique not null,
+    website_id int unsigned not null references website(website_id) on delete cascade,
+    created_at timestamp default current_timestamp,
+    hostname varchar(100),
+    browser varchar(20),
+    os varchar(20),
+    device varchar(20),
+    screen varchar(11),
+    language varchar(35),
+    country char(2),
+    foreign key (website_id) references website(website_id) on delete cascade
+) ENGINE=InnoDB;
+
+create table pageview (
+    view_id int unsigned not null auto_increment primary key,
+    website_id int unsigned not null,
+    session_id int unsigned not null,
+    created_at timestamp default current_timestamp,
+    url varchar(500) not null,
+    referrer varchar(500),
+    foreign key (website_id) references website(website_id) on delete cascade,
+    foreign key (session_id) references session(session_id) on delete cascade
+) ENGINE=InnoDB;
+
+create table event (
+    event_id int unsigned not null auto_increment primary key,
+    website_id int unsigned not null,
+    session_id int unsigned not null,
+    created_at timestamp default current_timestamp,
+    url varchar(500) not null,
+    event_type varchar(50) not null,
+    event_value varchar(50) not null,
+    foreign key (website_id) references website(website_id) on delete cascade,
+    foreign key (session_id) references session(session_id) on delete cascade
+) ENGINE=InnoDB;
+
+create index session_created_at_idx on session(created_at);
+create index session_website_id_idx on session(website_id);
+
+create index pageview_created_at_idx on pageview(created_at);
+create index pageview_website_id_idx on pageview(website_id);
+create index pageview_session_id_idx on pageview(session_id);
+
+create index event_created_at_idx on event(created_at);
+create index event_website_id_idx on event(website_id);
+create index event_session_id_idx on event(session_id);
+
+drop function if exists date_trunc;
+create function date_trunc(
+  in_granularity enum('minute', 'hour', 'day', 'month', 'year'),
+  in_datetime datetime(6)
+)
+returns datetime(6)
+deterministic 
+begin
+  if (in_granularity = 'minute') then
+    return DATE_FORMAT(in_datetime, '%Y-%m-%d %H:%i:00.0000');
+  end if;
+  if (in_granularity = 'hour') then
+    return DATE_FORMAT(in_datetime, '%Y-%m-%d %H:00:00.0000');
+  end if;
+  if (in_granularity = 'day') then
+    return DATE_FORMAT(in_datetime, '%Y-%m-%d 00:00:00.0000');
+  end if;
+  if (in_granularity = 'month') then
+    return DATE_FORMAT(in_datetime, '%Y-%m-01 00:00:00.0000');
+  end if;
+  if (in_granularity = 'year') then
+    return DATE_FORMAT(in_datetime, '%Y-01-01 00:00:00.0000');
+  end if;
+end;
+
+insert into account (username, password, is_admin) values ('admin', '$2a$10$BXHPV7APlV1I6WrKJt1igeJAyVsvbhMTaTAi3nHkUJFGPsYmfZq3y', true);
\ No newline at end of file
diff --git a/sql/schema.postgresql.sql b/sql/schema.postgresql.sql
index f319ce87..407bdbd9 100644
--- a/sql/schema.postgresql.sql
+++ b/sql/schema.postgresql.sql
@@ -49,15 +49,15 @@ create table event (
     event_value varchar(50) not null
 );
 
-create index on account(username);
+create index session_created_at_idx on session(created_at);
+create index session_website_id_idx on session(website_id);
 
-create index on session(created_at);
-create index on session(website_id);
+create index pageview_created_at_idx on pageview(created_at);
+create index pageview_website_id_idx on pageview(website_id);
+create index pageview_session_id_idx on pageview(session_id);
 
-create index on pageview(created_at);
-create index on pageview(website_id);
-create index on pageview(session_id);
+create index event_created_at_idx on event(created_at);
+create index event_website_id_idx on event(website_id);
+create index event_session_id_idx on event(session_id);
 
-create index on event(created_at);
-create index on event(website_id);
-create index on event(session_id);
\ No newline at end of file
+insert into account (username, password, is_admin) values ('admin', '$2a$10$BXHPV7APlV1I6WrKJt1igeJAyVsvbhMTaTAi3nHkUJFGPsYmfZq3y', true);
\ No newline at end of file