To answer this question, you need to understand the concept of server-side procedures and their purposes.
Option A) When the procedure contains no SQL statements - This option is incorrect because server-side procedures are typically used to execute SQL statements and perform database operations.
Option B) When the procedure contains no PL/SQL commands - This option is incorrect because server-side procedures can contain PL/SQL commands. PL/SQL is a procedural language used in Oracle databases for writing stored procedures, functions, and triggers.
Option C) When the procedure needs to be used by many client applications accessing several remote databases - This option is incorrect because in this situation, you would typically create a distributed database system or implement a data access layer to handle the interaction between the client applications and remote databases. Server-side procedures may be involved, but this is not the primary reason for creating them.
Option D) When the procedure needs to be used by many users accessing the same schema objects on a local database - This option is correct because server-side procedures are often created to provide a centralized and controlled way for multiple users to access and manipulate the same schema objects on a local database. By creating a server-side procedure, you can ensure consistent and secure access to the shared data.
Therefore, the correct answer is D) When the procedure needs to be used by many users accessing the same schema objects on a local database. This option is correct because server-side procedures are commonly used in this situation to manage and control access to shared data.