A command that lets you change one or more fields in a record is

Related MCQs

• Which collection types is also known as index-by tables, lets you look up elements Using arbitrary numbers and strings for subscript values?
• In a                clustering index, the index record contains the search-key value and a pointer to the first data record with that search-key value and the rest of the records will be in the sequential pointers.
•                          using a log record sets the data item specified in the log record to the old value.
• In a _______ clustering index, the index record contains the search-key value and a pointer to the first data record with that search-key value and the rest of the records will be in the sequential pointers.
• Which one of the following is a set of one or more attributes taken collectively to uniquely identify a record?
• Which one of the following is a set of one or more attributes taken collectively to uniquely identify a record?
• Which one of the following is a set of one or more attributes taken collectively to Uniquely identify a record?
• What SQL command will allow you to change the table STUDENT to add the constraint named GradeCheck that states that the values of the Grade column must be greater than 0?
• Consider the employee work-team example, and assume that certain employees participate in more than one work team. A given employee may therefore appear in more than one of the team entity sets that are lower level entity sets of employee. Thus, the generalization is                            
• When the values in one or more attributes being used as a foreign key must exist in another set of one or more attributes in another table, we have created a(n):