Q8. Examine the description of the EMPLOYEES table:

NLS_DATE_FORMAT is set to DD-MON-YY.
Which query requires explicit data type conversion?
- (A). SELECT dept_id, AVG(MAX(salary)) FROM employees GROUP BY dept_id;
- (B). SELECT dept_id, join_date, SUM(salary) FROM employees GROUP BY dept_id;
- (C). SELECT dept_id, join_date, SUM(salary) FROM employees GROUP BY dept_id, join_date;
- (D). SELECT dept_id, MAX(AVG(salary)) FROM employees GROUP BY dept_id;
Xem thêm:

WP Rocket
LayerSlider Premium
ARMember
Go Pricing
Vlogger - Professional Video & Tutorials WordPress Theme
Photoshare - Blog Story & Photos Download WordPress Theme
Almighty Wordpress Theme
MyThemeShop Fashionblog WordPress Theme
Gutentype | 100% Gutenberg Blog Theme + Elementor
Utouch - Multi-Purpose Business and Digital Technology WordPress Theme
Sleek | Responsive & Creative WordPress Blog Theme
Ewebot - Marketing & SEO Digital Agency WordPress Theme 3.0.4
Hestia Pro Themes
Affiliate Newspaperly Wordpress Theme
Eskimo - Minimal Personal WordPress Blog & Shop Theme
Activello Wordpress Theme
Contentberg - Content Marketing & Personal Blog for WordPress
7band - Musical Instruments Shop Shopify Theme
Pin = Pinterest Style / Personal Masonry Blog / Front-end Submission
Vlog - Video Blog & Podcast WordPress Theme
jannifer hamis health coach healthy lifestyle blog
Adaptable Notes Wordpress Theme
Ncmaz - News Magazine Full Site Editing WordPress Block Theme
CheerUp - Food, Blog & Magazine for WordPress