How to capture return value of xp_logininfo?

The xp_logininfo is a system stored procedure in SQL Server that provides information about a login within the current SQL Server instance. It can be used to retrieve details such as the login’s permission levels, default database, and other relevant information. However, capturing the return value of xp_logininfo requires a specific approach. In this article, we will discuss the process of capturing the return value and address some common questions related to it.

How to Capture the Return Value of xp_logininfo

**To capture the return value of xp_logininfo, you need to execute the procedure and store the result in a variable. Here’s an example:**

“`
DECLARE @result INT;

EXEC @result = master.sys.xp_logininfo ‘YourLogin’, ‘all’;

PRINT ‘Return value: ‘ + CAST(@result AS VARCHAR(10));
“`

By executing the xp_logininfo procedure within the master database, we pass the login name (‘YourLogin’ in this case) as the first parameter and ‘all’ as the second parameter to retrieve all available information. The return value will be assigned to the @result variable, and we can then use it as needed.

It’s important to note that the return value is an integer and can have different meanings depending on the value returned. Generally, a value of 0 indicates success, while other values may indicate specific errors or warnings. Refer to the SQL Server documentation for a detailed explanation of different return values.

Frequently Asked Questions

1. How to capture the return value when using xp_logininfo?

To capture the return value of xp_logininfo, execute the procedure and store the result in a variable, as shown in the example above.

2. What does the return value of 0 mean in xp_logininfo?

A return value of 0 in xp_logininfo indicates a successful execution without any errors.

3. How can I handle specific errors returned by xp_logininfo?

You can utilize conditional statements within your SQL code to handle different return values and perform specific actions accordingly.

4. Is it possible to capture the return value in a table?

Yes, you can capture the return value of xp_logininfo in a table by creating a table variable or a temporary table and inserting the result into it.

5. How do I interpret return values other than 0 in xp_logininfo?

Return values other than 0 in xp_logininfo indicate possible errors or warnings. Refer to the SQL Server documentation or relevant resources to understand the specific meaning of each return value.

6. Can I use xp_logininfo without specifying a login name?

Yes, you can use xp_logininfo without specifying a login name. However, it will only return information about the currently logged-in user.

7. Is it possible to capture the return value in a stored procedure?

Yes, you can capture the return value of xp_logininfo within a stored procedure by declaring a variable and assigning the result to it.

8. What are some possible errors returned by xp_logininfo?

Possible errors returned by xp_logininfo include invalid login names, insufficient permissions to execute the procedure, or problems accessing the underlying system information.

9. Does xp_logininfo provide information about Windows logins?

Yes, xp_logininfo provides information about both SQL Server logins and Windows logins.

10. Can xp_logininfo be used in Azure SQL Database?

No, xp_logininfo is not available in Azure SQL Database. Instead, you can utilize Azure Active Directory (AAD) for managing logins and permissions.

11. How can I suppress the output of xp_logininfo?

To suppress the output of xp_logininfo, you can use the SET NOCOUNT ON statement before executing the procedure. This will prevent the row count from being returned.

12. Can xp_logininfo be used to retrieve user-defined roles?

No, xp_logininfo does not provide information about user-defined roles. However, you can use other system stored procedures or queries to retrieve information about roles assigned to a login.

In conclusion, capturing the return value of xp_logininfo requires executing the procedure and storing the result in a variable. By following this approach, you can effectively utilize xp_logininfo and retrieve the desired information about logins within your SQL Server instance.

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