Q111 Which two statements are true about the ORDER BY clause when used with a SQL statement containing a SET operator such as UNION? (Choose two.)
- (A). Column positions must be used in the ORDER BY clause
- (B). Only column names from the first SELECT statement in the compound query are recognized
- (C). The first column in the first SELECT of the compound query with the UNION operator is used by default to sort output in the absence of an ORDER BY clause
- (D). Each SELECT statement in the compound query must have its own ORDER BY clause
- (E). Each SELECT statement in the compound query can have its own ORDER BY clause
Xem thêm:

Joss - Personal Portfolio WordPress Theme
Salient - Creative Multipurpose & WooCommerce Theme
FlexiTherapy - Template kit for Chiropractic & Physiotherapy Services
Web mẫu - Công ty thiết kế website
Ncmaz - News Magazine Full Site Editing WordPress Block Theme
Flex Mag - Responsive WordPress News Theme
WooCommerce PayGate Payment Gateway
Sensei Content Drip