In an SQL SELECT statement querying a single table, according to the SQL-92 standard the asterisk (*) means that:
Options: all columns of the table are to be returned., all records meeting the full criteria are to be returned., all records with even partial criteria met are to be returned., None of the above is correct.
Options: (A)Emerges due to userâ€™s understanding of system develops, during system development (B) Requirements derived from the core activity of the organization and directly related to the domain of the system. (C) Extent to which a system allowed the user to intentionally or unintentionally introduce errors into or misuse the system. (D) None of these. 18
Options: A)for relatively permanent collections of data
b.for the size of the structure and the data in the structure are constantly changing
c.for both of above situation
d.for none of above situation
In applying the systems approach, the manager proceeds from the
Options: super system to the system to the subsystem level, system to the sulpersystem to the subsystem level, subsystem to the system to the supersystem level, supersystem to the supersystem to the system level.
Options: are more powerful then the first controllers on the market, are relatively low cost compared with the original digital equipment available for industrial control, can be cost effective even when replacing just a few relays, All of the above