sqlmap is an automatic SQL injection tool entirely developed in Python. It is capable to perform an extensive database management system back-end fingerprint, retrieve remote DBMS databases, usernames, tables, columns, enumerate entire DBMS, read system files and much more taking advantage of web application programming security flaws that lead to SQL injection vulnerabilities.

Features

Full support for [...]

As you all seem to pretty interested in Inguma, there’s something else similar called w3af - the fifth BETA was released a while back and the team are now working on the sixth.
w3af is a Web application attack and Audit Framework. The project goal is to create a framework to find and exploit web application [...]

Sqlninja is a tool targeted to exploit SQL Injection vulnerabilities on a web application that uses Microsoft SQL Server as its back-end. Its main goal is to provide a remote shell on the vulnerable DB server, even in a very hostile environment. It should be used by penetration testers to help and automate the process [...]

CORE GRASP for PHP is a web-application protection software aimed at detecting and blocking injection vulnerabilities and privacy violations.
As mentioned during its presentation at Black Hat USA 2007, GRASP is being released as open source under the Apache 2.0 license.
The present implementation protects PHP 5.2.3 against SQL-injection attacks for the MySQL engine, it can be [...]

SQL Power Injector is a graphical application created in .NET 1.1 that helps the penetrating tester to inject SQL commands on a web page.
For now it is SQL Server, Oracle and MySQL compliant, but it is possible to use it with any existing DBMS when using the inline injection (Normal mode).
Moreover this application will get [...]

A pretty cool tool was released a while back called w3af ( Web Application Attack and Audit Framework ), a fully automated auditing and exploiting framework for the web. This framework has been in development for almost a year and has the following features:

Audit

SQL injection detection
XSS detection
SSI detection
Local file include detection
Remote file include detection
Buffer Overflow [...]

mssql-hax0r v0.9 is a Multi-purpose MS-SQL injection attack tool for advanced Microsoft SQL Server exploitation. Three modes of operation are currently available: info (Information Gathering), dump (Record Dump), and brute (Brute Force).
You may need to tweak the code a bit to make it fit your needs (i.e. modifying the injection string and/or the language used [...]

FG-Injector Framework is a set of tools designed to help find SQL injection vulnerabilities in web applications, and help the analyst assess their severity. It includes a powerful proxy feature for intercepting and modifying HTTP requests, and an inference engine for automating SQL injection exploitation.

Often web developers think that by disabling error messages in their [...]

sqlget is a blind SQL injection tool developed in Perl, it lets you get databases schemas and tables rows. Using a single GET/POST you can access quietly the database structure and using a single GET/POST you can dump every table row to a csv-like file.

Databases supported:

IBM DB2
Microsoft SQL Server
Oracle
Postgres
Mysql
IBM Informix
Sybase
Hsqldb
Mime
Pervasive
Virtuoso
SQLite
Interbase/Yaffil/Firebird (Borland)
H2
Mckoi
Ingres
MonetDB
MaxDB
ThinkSQL
SQLBase

Evasion features:

Full-width/Half-width Unicode encoding
Apache non [...]

sqlninja is a tool to exploit SQL Injection vulnerabilities on a web application that uses Microsoft SQL Server as its back-end. Its main goal is to provide a remote shell on the vulnerable DB server, even in a very hostile environment.
It should be used by penetration testers to help and automate the process of taking [...]