Different access control mechanisms are used to secure the database against an unauthorized access by either an intruder or extruder. Currently employed orthodox mechanisms, failed considerably to secure the database from authorized misuses by malicious users.There are various techniques that were previously employed to detect SQL anomalies and to impede the query from execution. Although the solution was appropriate to some extent, but there is no appropriate mechanism to embark a resolution against the reconstruction of queries to minimize the occurrence of denial of service DoS. There are various reasons for the occurrence of denial of service DoS in the database. The DoS may happen when an SQL query is detected as anomalous and intercepted by the database. Things get embroiled when some process issues a query and waiting a reply from the database; certainly that process has to wait forever for the response by the database. The denial of service situation is not justifiable for the organizations which are working with databases in the real time environments. To overcome the issues of DoS, this work proposes a technique of SQL injection detection and purifies those queries from the malicious codes, injected by intruders. This work is formed as the next section represents the introduction, literature review, methodology and finally the reference phase.