For the operation of registering a view of sales in Africa, what is likely to happen when executing the command in order?

For the operation of registering a view of sales in Africa, what is likely to happen when executing the command in order?

• A. Both commands will succeed, and new views will be registered
• B. Cmd 1 will succeed, while Cmd 2 will search all databases for a table named countries_af
• C. Cmd 1 will succeed and Cmd 2 will fail with an error
• D. Cmd 1 will succeed and Cmd 2 will succeed but not register any views

Answer: (C)

In the context of registering a view of sales in Africa, if Cmd 1 is executed successfully, it indicates that the initial setup or definition for registering the view has been properly configured. However, in this scenario, it's important to understand the implications of Cmd 2. If Cmd 2 is expected to reference a table or a view that is incorrectly specified or does not exist, it would consequently cause an error. This could happen if, for example, Cmd 2 tries to use a table named `countries_af` that has not been created, is misspelled, or is located in a different database context that has not been specified. The command execution environment typically looks for existing resources based on the database context currently in use. If the context does not align with where `countries_af` is located, the command will not find the target and will fail. Thus, with Cmd 1 succeeding in its operation but Cmd 2 failing due to an inability to locate the expected input, the outcome aligns with the statement that Cmd 1 will succeed while Cmd 2 will result in an error. This understanding is key to comprehending the overall execution flow when working with SQL commands in a data engineering environment.

In the context of registering a view of sales in Africa, if Cmd 1 is executed successfully, it indicates that the initial setup or definition for registering the view has been properly configured. However, in this scenario, it's important to understand the implications of Cmd 2.

If Cmd 2 is expected to reference a table or a view that is incorrectly specified or does not exist, it would consequently cause an error. This could happen if, for example, Cmd 2 tries to use a table named countries_af that has not been created, is misspelled, or is located in a different database context that has not been specified. The command execution environment typically looks for existing resources based on the database context currently in use. If the context does not align with where countries_af is located, the command will not find the target and will fail.

Thus, with Cmd 1 succeeding in its operation but Cmd 2 failing due to an inability to locate the expected input, the outcome aligns with the statement that Cmd 1 will succeed while Cmd 2 will result in an error. This understanding is key to comprehending the overall execution flow when working with SQL commands in a data engineering environment.