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Wednesday 12 November 2014

Most Prominent SQL Server Problem

The 10 most common issues uncovered by SQL RAPs (in no particular order):

1. Absense of Security Updates

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This could be the most important and also the most critical situation of sql server when any window security updates were absent on the server and are not be regularly updated. We could find this by asking various queries about servers and different applications and operations.

2. Sql exisitng under any administrative account :


This is a very comman existing issue. The issue arises when any sql running under a type of administrative account which leads to increment in security risk. When the sql server runs under this type of account at this situation the risk on server is increased very much.

3. Enablation of Xp_cmdshell


This is also a very occuring issue when the account is administrative account. In many cases many administrative account holders never realizes that how much its necessary and also its not needed to be turned on evertime continously. They also use this application when needed according to thier requirements.

4. Unscheduled Database integrity checks:


n many cases it has beed seen that the database integrity checks is never enabled. Or not been updated on regular basis. This may leads to database failure due to various database corruption issues. This can be checked by running the BCC CHECKDB application which is in many cases rarely been excuted. This DBCHECK should be done on sql server on regular basis in rder to avoid the database failure.

5.  Absence of sql server updation to the latest service pack:


Next comes the issue of updation of sql server to the latest service pack which is absent in many cases. This updation is important in order to gain the latest security purpose and also to inhance the server performance. There are many cases when there are old service packs are installed on servers.

6. NOLOCK usage :


 In many cases in SQLRAP static analysis of codes of T-SQL stored procedures are also be performed. In which The object that are mainly using the NOLOCK table is been identified. The NOLOCK table hint may cause the inconsistency in code analysis and data reading and also cases various types of errors. This type os service is not available in remote SQL RAP.

7.  Large growing data and file sizes :


This is the issue which mainly accours due to the over growing size of data and files. SQL RAP is a type of service which helps to identify such data growth and helps them to set to a particular value. While transaction of log files this check could also be performed
to determine the actual value of files so that they can be flagged if increased from the threshold limit.

8. Blank easy weak SQL login passwords :


This is one of he most rarely occuring security related issue. This could be checked by using PWDCOMPARE function if the password is weak or blank or if it is same as to the login id. SOme of their also existing which also provides the script due to which any one can able to identify the information about the passwords which is mainly related to the security purpose of servers.

9. Absense of Disaster recovery plan :


This is one of the strongest application which mainly helps to restore the database. One can identify if this application is installed on server or not by doing proper questionaire to  DBA staff. Which could helps to determine wheather its installed on server or not. The conversation may also be takes place between business owners and databae staff.

10.  MSDTC configuration :

This MSDTC may cause the issue related to server performnce and server stability. This issue is very prompltly occuring in which this resource is been created as cluster resource
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