System-defined roles (ACCOUNTADMIN, SYSADMIN, etc.) in Snowflake - Time & Space Complexity

Time Complexity: System-defined roles (ACCOUNTADMIN, SYSADMIN, etc.)

O(n)

Understanding Time Complexity

We want to understand how the time to check or assign system-defined roles changes as the number of users or roles grows.

How does the system handle these roles efficiently as more users or permissions are involved?

Scenario Under Consideration

Analyze the time complexity of querying role grants for users.

-- List roles granted to a user
SHOW GRANTS TO USER some_user;

-- List users granted a system-defined role
SHOW GRANTS OF ROLE SYSADMIN;

-- Assign a system-defined role to a user
GRANT ROLE SYSADMIN TO USER some_user;
    

This sequence shows checking and assigning system-defined roles to users.

Identify Repeating Operations

Look at the main operations that happen repeatedly when managing roles.

• Primary operation: Checking role grants involves scanning role assignments.
• How many times: Once per user or role queried, but can involve multiple role entries.

How Execution Grows With Input

As the number of users or roles grows, the system checks more entries.

Input Size (n)	Approx. API Calls/Operations
10 users/roles	About 10 role checks
100 users/roles	About 100 role checks
1000 users/roles	About 1000 role checks

Pattern observation: The number of checks grows roughly in direct proportion to the number of users or roles involved.

Final Time Complexity

Time Complexity: O(n)

This means the time to check or assign system-defined roles grows linearly with the number of users or roles.

Common Mistake

[X] Wrong: "Assigning a system-defined role is instant no matter how many users exist."

[OK] Correct: Even though the command is simple, the system must update and verify role assignments, which takes longer as more users or roles exist.

Interview Connect

Understanding how role management scales helps you design secure and efficient access controls in cloud systems.

Self-Check

"What if we cached role assignments? How would the time complexity change when checking roles for many users?"

Practice

1. Which Snowflake system-defined role has full control over the entire account, including all objects and users?

easy

A. ACCOUNTADMIN

B. SYSADMIN

C. SECURITYADMIN

D. PUBLIC

Solution

1. Step 1: Understand role privileges

   ACCOUNTADMIN is designed to have full control over the Snowflake account, including all objects and user management.

2. Step 2: Compare with other roles

   SYSADMIN manages data objects, SECURITYADMIN manages users and roles, and PUBLIC has minimal default privileges.

3. Final Answer:

   ACCOUNTADMIN -> Option A

4. Quick Check:

   Full account control = ACCOUNTADMIN [OK]

Hint: Full control role is ACCOUNTADMIN, others have limited scopes [OK]

Common Mistakes:

• Confusing SYSADMIN with full control
• Thinking SECURITYADMIN manages data objects
• Assuming PUBLIC has admin privileges

2. Which of the following is the correct syntax to switch to the SYSADMIN role in Snowflake?

easy

A. SET ROLE SYSADMIN;

B. CHANGE ROLE TO SYSADMIN;

C. USE ROLE SYSADMIN;

D. SWITCH TO SYSADMIN;

Solution

1. Step 1: Recall Snowflake role switching syntax

   The correct command to switch roles is USE ROLE <role_name>;.

2. Step 2: Verify options

   Only USE ROLE SYSADMIN; matches the correct syntax exactly.

3. Final Answer:

   USE ROLE SYSADMIN; -> Option C

4. Quick Check:

   Switch role command = USE ROLE [OK]

Hint: Switch roles with USE ROLE followed by role name [OK]

Common Mistakes:

• Using SET ROLE instead of USE ROLE
• Adding extra words like TO or SWITCH
• Missing semicolon at the end

3. Given the following commands executed in order:

USE ROLE SECURITYADMIN;
CREATE USER test_user PASSWORD='Pass1234';
USE ROLE SYSADMIN;
CREATE TABLE test_table(id INT);

Which statement is true about the created objects?

medium

A. test_user is created successfully; test_table creation fails due to insufficient privileges.

B. Both test_user and test_table creation fail.

C. test_user creation fails; test_table is created successfully.

D. Both test_user and test_table are created successfully.

Solution

1. Step 1: Analyze role privileges for user creation

   SECURITYADMIN can create users, so CREATE USER test_user succeeds.

2. Step 2: Analyze role privileges for table creation

   SYSADMIN manages data objects, so CREATE TABLE test_table succeeds.

3. Final Answer:

   Both test_user and test_table are created successfully. -> Option D

4. Quick Check:

   SECURITYADMIN creates users, SYSADMIN creates tables [OK]

Hint: SECURITYADMIN for users, SYSADMIN for tables; both succeed [OK]

Common Mistakes:

• Assuming SYSADMIN can create users
• Assuming SECURITYADMIN can create tables
• Confusing role privileges

4. You run the command CREATE USER new_user PASSWORD='abc123'; while using the SYSADMIN role and get an error. What is the most likely cause?

medium

A. Password does not meet complexity requirements.

B. SYSADMIN role does not have privileges to create users.

C. The command syntax is incorrect.

D. The user already exists.

Solution

1. Step 1: Check role privileges for user creation

   Only SECURITYADMIN or ACCOUNTADMIN can create users; SYSADMIN lacks this privilege.

2. Step 2: Consider other options

   Password complexity or syntax errors would cause different error messages; user existence would be a different error.

3. Final Answer:

   SYSADMIN role does not have privileges to create users. -> Option B

4. Quick Check:

   User creation requires SECURITYADMIN or ACCOUNTADMIN [OK]

Hint: User creation needs SECURITYADMIN, not SYSADMIN [OK]

Common Mistakes:

• Blaming password complexity without checking error
• Assuming SYSADMIN can create users
• Ignoring role privilege boundaries

5. You want to delegate user and role management to one admin and data object management to another, while keeping full control yourself. Which role assignments follow best practices?

hard

A. Assign SECURITYADMIN to user1, SYSADMIN to user2, ACCOUNTADMIN to yourself.

B. Assign ACCOUNTADMIN to user1, SECURITYADMIN to user2, SYSADMIN to yourself.

C. Assign SYSADMIN to user1, ACCOUNTADMIN to user2, SECURITYADMIN to yourself.

D. Assign PUBLIC to user1, SYSADMIN to user2, SECURITYADMIN to yourself.

Solution

1. Step 1: Understand role responsibilities

   SECURITYADMIN manages users and roles; SYSADMIN manages data objects; ACCOUNTADMIN has full control.

2. Step 2: Match roles to admin tasks

   Assign SECURITYADMIN to the admin handling users, SYSADMIN to the admin handling data, and keep ACCOUNTADMIN yourself for full control.

3. Final Answer:

   Assign SECURITYADMIN to user1, SYSADMIN to user2, ACCOUNTADMIN to yourself. -> Option A

4. Quick Check:

   Delegate roles by responsibility, keep ACCOUNTADMIN for full control [OK]

Hint: Delegate SECURITYADMIN for users, SYSADMIN for data, keep ACCOUNTADMIN [OK]

Common Mistakes:

• Giving ACCOUNTADMIN to others unnecessarily
• Assigning PUBLIC role for admin tasks
• Mixing up role responsibilities