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Editorial Team
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Asked: 2026-05-15T12:02:27+00:00

Is setting EXEC sp_addrolemember N’db_datareader’, N’User’ EXEC sp_addrolemember N’db_datawriter’, N’User’ Is the same as

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Is setting 

EXEC sp_addrolemember N'db_datareader', N'User'
EXEC sp_addrolemember N'db_datawriter', N'User'

Is the same as granting SELECT/INSERT/DELETE/UPDATE on all tables to User

GRANT SELECT ON  [Schema].[Table] TO [User]
GRANT INSERT ON  [Schema].[Table] TO [User]
GRANT DELETE ON  [Schema].[Table] TO [User]
GRANT UPDATE ON  [Schema].[Table] TO [User]
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1 Answer

  1. Editorial Team

    From MSDN (db_datawriter, db_datareader) :

    Members of the db_datawriter fixed database role can add, delete, or change data in all user tables.

    Members of the db_datareader fixed database role can run a SELECT statement against any table or view in the database.

    So, the effect is the same, only easier to administer in the first case.

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