Raghavendra Mudugal (3/3/2015)

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djj (3/3/2015)

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I guessed correctly, however, how does this prevent the user from creating in other schemas? Is it because he has not been given permission explicitly to them?

In a way, Yes. In this case the user is just authorized on a specific schema. On the other hand if GRANT is executed on CREATE SCHEMA, then that user can create procedure objects under any schema.