App Development Companies

App Development Companies

Title SQL Server Security Word Count 693 Summary IT Consulting New Jersey New York Database Design Custom Programming Web Development High Expertise in C VB Java SQL Server Oracle Sybase and NET Technologies Also specializing in Client Server Consulting Keywords Database Design Development C VB SQL Server Article Body There are several levels of security to SQL Server At the a base level in order to be granted get access to a SQL Server a user is required to have a login account There are two modes of security to SQL Server distinguished by which program provides the authentication NT Authentication provides that Windows NT and or its successors verify verifies the identity of a user logging in In this mode the SQL Server will trust that Windows NT has verified that the user is who app developer says app developer is The second method SQL Server authentication Malaysia app developer is SQL Server that authenticates the identity of the user SQL Server authentication is typically used for internet Internet connections since not all internet Internet users have Windows NT and not all NT domains are trusted In addition to identifying users Malaysia app developer is sometimes convenient to define roles at the server level Since within an organization there are groups of users with similar access needs and levels Malaysia app developer may be convenient to define roles with specific levels of permissions Once you have defined a role you can assign users to that role and those users inherit all of the privileges assigned to the role There are two types of permissions assigned to individual users and roles Statement permissions confer the right to execute certain types of T SQL commands Object permissions confer the right to access database objects directly Defining Logins Users and Roles Logins can be added either through the Database Properties Window under Logins or by invoking system stored procedures with appropriate parameters The command sp addlogin loginname password databasename will add a SQL Server authenticated login to the list sp grantlogin domainname username will add an NT authenticated login to the list After the login has been allowed you need to allow the user access to the database This is done either through the Database Properties Window under Users for that particular database or with the command sp grantdbaccess loginname You can see the list of users using the command sp helpuser or sp helpuser username To cancel a security account for a given database use sp revokedbaccess username To remove an NT Login use sp revokelogin username note no domain and to srop stop a SQL Server authenticated login use sp droplogin username To add a role to a database use sp addrole clerical and to add meAugust 16 2005er clerical username To delete a rolemember use sp droprolemember username At the SQL Server level the rolenames are fixed and cannot be changed but users can be added using sp addsrvrolemember username dbcreator To drop a rolmember use sp dropsrvmember username Granting permissions The GRANT command is used to assign permissions to a security account Statement permissions in this way GRANT right TO username where right can be any of the following CREATE DATABASE CREATE DEFAULT CREATE PROCEDURE CREATE RULE CREATE TABLE CREATE VIEW DUMP DATABASE DUMP TRANSACTION For object permissions GRANT is also the command to use but the grammar differs slightly GRANT action ON table view procedure name TO username where action can be one of the following INSERT DELETE EXECUTE SELECT or UPDATE One can also apply these this permission to groups or roles as well as usernames And Malaysia app developer is also possible that a role can have a permission but a member of that role be denied permission for a task See the next discussion In all of the above commands you can also explicitly deny permission using DENY in place of GRANT Note however that DENY is not the negation of GRANT DENY explicitly excludes the user from that capability The REVOKE command is used to remove both the permission and refusal Resources Article How To Identify Your SQL Server Service Pack Version and Edition This is an insightful article that discusses about SQL server pack version and edition Tutorial Using Access or SQL Server to Write your ASP Code This tutorial discusses how SQL server can be used to write the ASP code Metro NY NJ SQL Server Consultants freelance app developer specialize is custom database software Call us for a free consultation 973 635 0080 or email us at paladn com .

App Development Companies