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SQL injection is most common methodology employed by a hacker to exploit vulnerabilities in software applications. Vulnerabilities are basically weak links in the software that exposes unauthorized da...
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Preventing SQL Injection
SQL injection is a problem that happens often to anyone who handles databases, and this tutorial will help you to understand the problem better in order to prevent it
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How to Filter Query Results in SQL
Many times you will want to filter results for very specific terms. You can accomplish this by using 'having' and 'group by' operators.
How to Use Between in SQL
If you need to find the range in some data, then you need to use between as your operator.
How to Use the Trim Function
Sometimes with outputted data, comes unwanted white space. The trim function is used for this in SQL.
How to Use sql Aggregate Functions
Want to find out the minimum or average on a given data? Learn to use SQL's aggregate function for this.
How to Concantenate Strings
Often times you have to combine output data in SQL, concatenation can be used for this.
How to Update, Change, and Delete in SQL
Managing database requires three major things-update, change , and delete. Learn the steps to do this in SQL.
How to Create Tables in SQL
Creating tables is essential in SQL. Learn how to do this with step by step instructions.
Inserting Data into SQL Tables
Inserting data is at the heart of a database. Learn how to easily use the insert operator in SQL.