SQL account used for SharePoint
When we plan to build the SharePoint,
The first and most important part is the account used for the SQL admin. Please
find the details below that provide you more information on the account.
1. SQL Admin Account
SQL Admin account would be use to install SQL Server for your SharePoint and would be created in AD. This account should be a domain user and must be a local administrator on database server. These rights are enough to successfully install SQL Server. Do not use any other domain admin account or never make this as a domain admin account. I have seen people using domain admin account to install SQL and SharePoint which is a mistake and a threat to security. You can name this account as "sql_install" or "sql_admin".
2. SQL Service Account
This is the account that runs the SQL Server instance. This should be a domain user but do not make this as a local administrator for security reasons. You can name this as "sql_user" or "sql_services". While installing SQL Server with SQL Admin account, necessary permission would be granted to this account for running the SQL Server instance. At Server Configurations step during SQL Server installation, mention your SQL Service account as the account for SQL Server Database Engine and SQL Server Browser and automatically necessary rights would be granted to this account to run the SQL Server instance.
3. SharePoint Setup Account
Create an account "sp_install" (a recommendation, you can name it anything) in your AD and put this account in local administrator group on all SharePoint Servers. Make sure you do not put this account in domain administrator account. You should never use a domain admin account to install SharePoint and its services.
SQL Admin account would be use to install SQL Server for your SharePoint and would be created in AD. This account should be a domain user and must be a local administrator on database server. These rights are enough to successfully install SQL Server. Do not use any other domain admin account or never make this as a domain admin account. I have seen people using domain admin account to install SQL and SharePoint which is a mistake and a threat to security. You can name this account as "sql_install" or "sql_admin".
2. SQL Service Account
This is the account that runs the SQL Server instance. This should be a domain user but do not make this as a local administrator for security reasons. You can name this as "sql_user" or "sql_services". While installing SQL Server with SQL Admin account, necessary permission would be granted to this account for running the SQL Server instance. At Server Configurations step during SQL Server installation, mention your SQL Service account as the account for SQL Server Database Engine and SQL Server Browser and automatically necessary rights would be granted to this account to run the SQL Server instance.
3. SharePoint Setup Account
Create an account "sp_install" (a recommendation, you can name it anything) in your AD and put this account in local administrator group on all SharePoint Servers. Make sure you do not put this account in domain administrator account. You should never use a domain admin account to install SharePoint and its services.
I hope the above information will help you to resolve the issue, in case of any queries/questions regarding the above mentioned information then please let me know. I would be more than happy to help you as well as resolves your issues, Thank you.