last data update: 2011/10/14, 06:45

Website loading time

during the test: 0.43 s

cable connection (average): 0.47 s

DSL connection (average): 0.52 s

modem (average): 2.89 s

HTTP headers

Information about DNS servers

sqlzoo.netA146.176.166.2IN38490

Received from the first DNS server

Request to the server "sqlzoo.net"
You used the following DNS server:
DNS Name: ns1.leaseweb.nl
DNS Server Address: 62.212.64.121#53
DNS server aliases:

HEADER opcode: REQUEST, status: NOERROR, id: 33251
flag: qr rd REQUEST: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 0

REQUEST SECTION:
sqlzoo.net. IN ANY

Received 28 bytes from address 62.212.64.121#53 in 84 ms

Received from the second DNS server

Request to the server "sqlzoo.net"
You used the following DNS server:
DNS Name: ns5.leaseweb.nl
DNS Server Address: 83.149.64.123#53
DNS server aliases:

HEADER opcode: REQUEST, status: NOERROR, id: 3560
flag: qr rd REQUEST: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 0

REQUEST SECTION:
sqlzoo.net. IN ANY

Received 28 bytes from address 83.149.64.123#53 in 84 ms

Subdomains (the first 50)

Typos (misspells)

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Location

IP: 146.176.166.2

continent: EU, country: United Kingdom (GBR), city:

Website value

rank in the traffic statistics: 147 154

page wievs - daily average: 643

page views - monthly average: 19 277

visitors - daily average during last 30 days: 212

visitors during last 30 days: 6 362

estimated daily income from ads: 29 USD

estimated monthly income from ads: 859 USD

estimated website value: 27 001 USD

Basic information

website build using CSS

code weight: 17.23 KB

text per all code ratio: 25 %

title:

description:

keywords: SQL, tutorial, learn, database, relational database, structured query language, interactive, MySQL, SQL Server, Oracle, Access db2

encoding: UTF-8

language: en

Website code analysis

one word phrases repeated minimum three times

PhraseQuantity
to22
and21
the18
SQL18
of16
How12
SELECT9
in8
we7
JOIN7
population7
which7
In7
bbc6
WHERE6
area6
FROM6
SELECT:5
with5
name,5
using4
for4
from3
country3
Answers3
data3
get3
other3
join3

two word phrases repeated minimum three times

PhraseQuantity
How to12
In which7
which we7
bbc WHERE6
FROM bbc6
SELECT name,4
of the4
area of3
we join3

three word phrases repeated minimum three times

PhraseQuantity
In which we7
FROM bbc WHERE6
which we join3

B tags

Zoo tutorials:

0) SELECT:

1) SELECT:

3) SUM and COUNT:

4) The JOIN operation:

5) More JOIN operations:

6) Using Null:

7) Self join:

SQL User Manuals

Starting SQL

Programming with SQL

SQL standard

Error Messages

U tags

I tags

images

file namealternative text
SQL Hacks Book Cover

headers

H1

H2

Population of more than 200 million.

Twice the area of India.

H3

Population of more than 200 million.

Twice the area of India.

H4

H5

H6

internal links

addressanchor text
SQL
SELECT
FUNCTIONS
SELECT   WHERE
SELECT   JOIN
SELECT   SELECT
INSERT   VALUES
INSERT   SELECT
UPDATE
DELETE
CREATE   TABLE
CREATE   VIEW
CREATE   INDEX
DROP
ALTER   TABLE
SELECT:
SELECT:
More practice with SELECT:
SELECT in SELECT:
SUM and COUNT:
more the same
The JOIN operation:
music tutorial
More JOIN operations:
Using Null:
Scottish Paliament
Self join:
MySQL
Oracle
SQL Server
DB2
Postgres
Ingres
SQL in perl on the Web
SQL from Java
SQL92 BNF
SELECT
SELECT in SELECT
SUM and COUNT
JOIN I
JOIN II
OUTER JOIN (teachers)
OUTER JOIN (Parliament)
ACME
SELF JOIN
Top of the Pops
AdventureWorks
Neeps
Musicians
Southwind
Dressmaker
Congestion Charging
old questions
Album
Tracks
Style
Exploit SQL Injection Attack
What is SQL?
About SQLzoo.
How to say SQL.
Top of the Pops: using dates
ACME products: dealing with money.
Thrice Unfactorised Enigma
SQLzoo in Japanese 日本語

external links

addressanchor text
SQLzoo.cn
Linux
Java
XML
SQL Hacks Book Cover
DB2
Sybase
Postgres
SQLite
Weather data for Southhampton
Relational Database Theory
quiz
SQLzoo in German
Andrew Cumming
School of Computing
Napier University