Following benefits can be achieved using database views −To provide security −Using a view, you can select specific columns and assign access to the users. Users can only see the columns for which permissions are set on the view and not the underlying tables with full data.To hide Complexity −Consider a scenario where you need to join multiple tables using complex joins or calculations. All the coding can be put in database view and access can be provided.

Consider the following example −Example            Id            Empl. NameEmpl.userEmpl.passwordJoining Date1 Employee 1  Emp1Emp1Pwd      9/11/20162 Employee 2Emp2Emp2Pwd16/08/20153Employee 3 Emp3Emp3Pwd  15/09/20164Employee 4Emp4  Emp4Pwd3/07/20145Employee 5  Emp5    Emp5Pwd 10/09/20126 Employee 6Emp6  Emp6Pwd  1/10/2013         Consider a scenario when a developer needs to analyze some data of Employee Table with the above fields. Using database view, an administrator can create a virtual table which only contains information about Employee Id, Employee name, and date of joining and give permission to developer to use that view.

A view in a database is defined as Virtual table which derives its data from one or more columns of one table or multiple tables. A view can be created using tables of one or more database and is stored in database where it is created.You can find views in SAP HANA Studio under schema name −

Roles tab is used to view the existing roles in HANA system and you can also create a new role in HANA system to add to user’s profile as per requirement.

The password blacklist in SAP HANA is implemented with the table _SYS_PASSWORD_BLACKLIST in the schema _SYS_SECURITY. This table is empty when you create a new instance.You can enter words in the password blacklist as part of password policy configuration in the Security editor of the SAP HANA studio.

When a user logins to the HANA system, the following steps are performed −Step 1 The system authenticates the user using the configured mechanism.Example − When User name/password authentication is being enforced, the provided user name and password are verified.Step 2The system verifies that the user's account is within its validity period.In the system view USERS, the columns VALID_FROM and VALID_UNTIL must contain effective values for the user in question.However, this is an optional parameter that a user administrator can set during user provisioning.Step 3The next step is system verifies that the user's account is active.This can be performed by checking ... Read More

SAP HANA Cockpit with Fiori-based Launchpad shows the content in the form of tiles arranged in groups. Using these tiles, you can access individual applications and can also access app-specific data for immediate review.You can also perform a drill on these tiles to see the detailed information about specific applications. Note that full administration of SAP HANA is not possible using SAP HANA cockpit and you have to use SAP HANA studio for those.

You can use parameter detailed_error_on_connect: Indicates the detail level of error information returned when a logon attempt fails.Parameter      detailed_error_on_connectDefault Value falseAdditional Information                                                                        When you set this parameter to false, only the information authentication failed is returned.When this parameter is set to true, the specific reason for failed logon is returned −Invalid user or passwordUser is lockedConnect try is outside validity periodUser is deactivated

Parameter    password_expire_warning_timeDefault Value 14 (days)Parameter definitionNotification is transmitted via the database client (ODBC or JDBC) and it is up to the client application to provide this information to the user.If you enter the value 0, the user does not receive notification that his or her password is due to expire.The system also monitors when user passwords are due to expire and issues a medium priority alert. This may be useful for technical database users since password expiration results in the user being locked, which may affect application availability. It is recommended that you disable the password lifetime check of technical ... Read More

You can check this information under New User in SAP HANA. The below snapshot shows the New User dialog in SAP HANA Studio and the password rule that is displayed when hovering over the password field.