last data update: 2011/10/20, 09:53

Website loading time

during the test: 0.43 s

cable connection (average): 0.51 s

DSL connection (average): 0.58 s

modem (average): 4.6 s

HTTP headers

Information about DNS servers

learn-sql-tutorial.comMX10webmail2.edgewebhosting.netIN3600
learn-sql-tutorial.comSOAns1.edgewebhosting.netsupport.edgewebhosting.net2008102201900 600 86400 3600 IN 3600
learn-sql-tutorial.comA69.63.148.173IN3600
learn-sql-tutorial.comNSns1.edgewebhosting.netIN3600
learn-sql-tutorial.comNSns2.edgewebhosting.netIN3600

Received from the first DNS server

Request to the server "learn-sql-tutorial.com"
You used the following DNS server:
DNS Name: ns1.edgewebhosting.net
DNS Server Address: 69.63.128.230#53
DNS server aliases:

HEADER opcode: REQUEST, status: NOERROR, id: 2328
flag: qr aa rd REQUEST: 1, ANSWER: 5, AUTHORITY: 0, ADDITIONAL: 3

REQUEST SECTION:
learn-sql-tutorial.com. IN ANY

ANSWER SECTION:
learn-sql-tutorial.com. 3600 IN A 69.63.148.173
learn-sql-tutorial.com. 3600 IN NS ns2.edgewebhosting.net.
learn-sql-tutorial.com. 3600 IN NS ns1.edgewebhosting.net.
learn-sql-tutorial.com. 3600 IN SOA ns1.edgewebhosting.net. support.edgewebhosting.net. 2008102201 900 600 86400 3600
learn-sql-tutorial.com. 3600 IN MX 10 webmail2.edgewebhosting.net.

SECTION NOTES:
ns2.edgewebhosting.net. 3600 IN A 69.63.128.231
ns1.edgewebhosting.net. 3600 IN A 69.63.128.230
webmail2.edgewebhosting.net. 3600 IN A 69.63.134.12

Received 227 bytes from address 69.63.128.230#53 in 30 ms

Received from the second DNS server

Request to the server "learn-sql-tutorial.com"
You used the following DNS server:
DNS Name: ns2.edgewebhosting.net
DNS Server Address: 69.63.128.231#53
DNS server aliases:

HEADER opcode: REQUEST, status: NOERROR, id: 51231
flag: qr aa rd REQUEST: 1, ANSWER: 5, AUTHORITY: 0, ADDITIONAL: 3

REQUEST SECTION:
learn-sql-tutorial.com. IN ANY

ANSWER SECTION:
learn-sql-tutorial.com. 3600 IN A 69.63.148.173
learn-sql-tutorial.com. 3600 IN NS ns2.edgewebhosting.net.
learn-sql-tutorial.com. 3600 IN NS ns1.edgewebhosting.net.
learn-sql-tutorial.com. 3600 IN SOA ns1.edgewebhosting.net. support.edgewebhosting.net. 2008102201 900 600 86400 3600
learn-sql-tutorial.com. 3600 IN MX 10 webmail2.edgewebhosting.net.

SECTION NOTES:
ns2.edgewebhosting.net. 3600 IN A 69.63.128.231
ns1.edgewebhosting.net. 3600 IN A 69.63.128.230
webmail2.edgewebhosting.net. 3600 IN A 69.63.134.12

Received 227 bytes from address 69.63.128.231#53 in 30 ms

Subdomains (the first 50)

Typos (misspells)

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Location

IP: 69.63.148.173

continent: NA, country: United States (USA), city: Baltimore

Website value

rank in the traffic statistics:

There is not enough data to estimate website value.

Basic information

website build using CSS

code weight: 29.19 KB

text per all code ratio: 41 %

title: SQL Tutorial: Free

description: This website documents Webucator's Courseware Creation System.

keywords: courseware creation, technical authoring system, documentation system

encoding: ISO-8859-1

language: en

Website code analysis

one word phrases repeated minimum three times

two word phrases repeated minimum three times

three word phrases repeated minimum three times

B tags

In this lesson of the SQL tutorial, you will learn...

U tags

http://www.learn-sql-tutorial.com

I tags

images

file namealternative text
Webucator Logo
Try an online SQL class for free!

headers

H1

SQL Tutorial

Relational Database Basics

Brief History of SQL

Relational Databases

Popular Databases

SQL Statements

Relational Database Basics Conclusion

Use of http://www.learn-sql-tutorial.com (Website) implies agreement to the following:

H2

Tables

Rows

Columns

Relationships

Datatypes

Primary Keys

Foreign Keys

Relational Database Management System

Commercial Databases

Popular Open Source Databases

Valid Object References

Database Manipulation Language (DML)

Database Definition Language (DDL)

Database Control Language (DCL)

Copyright Information

No Printing or saving of pages or content on Website

Linking to Website

Warranties

For individual private use only

H3

Tables

Rows

Columns

Relationships

Datatypes

Primary Keys

Foreign Keys

Relational Database Management System

Commercial Databases

Popular Open Source Databases

Valid Object References

Database Manipulation Language (DML)

Database Definition Language (DDL)

Database Control Language (DCL)

Copyright Information

No Printing or saving of pages or content on Website

Linking to Website

Warranties

For individual private use only

H4

H5

H6

internal links

addressanchor text
Relational Database Basics
Brief History of SQL
Relational Databases
Popular Databases
SQL Statements
Simple SELECTs
Introduction to the Northwind Database
Some Basics
SELECTing All Columns in All Rows
Exploring the Tables
SELECTing Specific Columns
SELECTing Specific Columns
Sorting Records
Sorting Results
The WHERE Clause and Operator Symbols
Using the WHERE clause to check for equality or inequality
Using the WHERE clause to check for greater or less than
Checking for NULL
Using WHERE and ORDER BY Together
The WHERE Clause and Operator Words
More SELECTs with WHERE
Checking Multiple Conditions
Writing SELECTs with Multiple Conditions
Advanced SELECTs
Calculated Fields
Calculating Fields
Aggregate Functions and Grouping
Working with Aggregate Functions
Built-in Data Manipulation Functions
Data Manipulation Functions
Subqueries, Joins and Unions
Subqueries
Subqueries
Joins
Using Joins
Outer Joins
Unions
Working with Unions
Conditional Processing with CASE
Using CASE
Working with CASE
Inserting, Updating and Deleting Records
INSERT
Inserting Records
UPDATE
DELETE
Updating and Deleting Records
Creating and Modifying Tables
Data Types
Creating Tables
Creating Tables
Adding and Dropping Columns
Renaming Tables
Dropping Tables
Views
Creating Views
Dropping Views
Benefits of Views
Creating a View
Stored Procedures
Creating Stored Procedures
Dropping Stored Procedures
Creating a Stored Procedure
Benefits of Stored Procedures
SQL Tutorial
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