permissions - users and logins in sql server 2005 express -

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i created login named mylogin password= 'pass_1'

then logged sql server using login & tried create database , gave error permission denied.

then executed : sp_addsrvrolemember 'mylogin', 'dbcreator'

then, again logged sql server using above login & tried create database, time database created successfully

this because added dbcreator server role login.

but, created user myloginuser login mylogin , executed query: execute user = 'myloginuser'

then again tried create database, failed. why so?

when login mylogin user myloginuser associated has permission create database why user not have permission? whats solution this? have grant permission user separately irrespective of permissions granted login?

also, user created login , have created inside database? necessary?

the default user login [mylogin] mylogin (which created executing

sp_addsrvrolemember 'mylogin', 'dbcreator'

hence mylogin user had db create permission. have created myloginuser same login. existing user mylogin set orphaned user, hence mylogin login dropped db creator permission.


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