Example: Which day of the week has the most fatal motor accidents? Exercise 内容来自教程: Order Bywww.kaggle.com/code/dansbecker/order-by Order By Introduction 前面学习了SELECT...FROM、SELECT...FROM...WHERE,还有COUNT()
ORDERBY'Largest Sale'DESC 6 Ctrl-Enter:Plain Query Results,Alt-T:Rich Query Results,Alt-Enter:Line Chart Results,Alt-I:Pivot Chart Results,Ctrl-Space or Tab:Autocomplete. Join Two Tables - Where the Same ID is Present in Both
ASCindicates ascending order. (This value is default sorting for SQL syntax) DESCindicates descending order. EXAMPLE#1 : TableGameScores let's see some simple sorting from the SQL statement usingORDER BYSQL statement : SELECT*FROMGameScoresORDER BYScores Result: Result will be the same if the S...
[ELSE resultN] END # example SELECT name, salary, CASE WHEN salary <= 3000 THEN 'Low' WHEN salary BETWEEN 3001 AND 7000 THEN 'Medium' WHEN salary > 7000 THEN 'High' ELSE 'Not Specified' END AS salary_level FROM employees; 4、if的使用 mysql支持if的使用,其它数据库不一定支持。这个函数...
Example: ORDER BY ASC in SQL Note:TheORDER BYclause sorts result set in ascending by default, even without theASCclause. ORDER BY DESC (Descending Order) We use theDESCkeyword to sort the selected records indescending order. For example, ...
(1,'John Smith','john@example.com'),(2,'Jane Doe','jane@example.com');INSERTINTOproducts(product_id,product_name,unit_price)VALUES(101,'Laptop',800.00),(102,'Smartphone',500.00);INSERTINTOorders(order_id,customer_id,order_date,total_amount)VALUES(1001,1,'2023-01-15',1300.00),(1002,...
-- Example: SELECT * FROM by_height; -- Expected output: -- herbert -- fillmore -- abraham -- delano -- grover -- barack -- clinton 开发完成之后测试: python3 ok -q parent-height 答案 我们需要用每只狗parent的身高进行排序,所以我们需要知道parent的身高,所以需要将parents表和dogs表进行jo...
ORDERBYPriceDESC; Try it Yourself » Order Alphabetically For string values theORDER BYkeyword will order alphabetically: Example Sort the products alphabetically by ProductName: SELECT*FROMProducts ORDERBYProductName; Try it Yourself » Alphabetically DESC ...
ORDER BY LastName, FirstName Here are the results Results are ordered in ascending order (A to Z). Also, when specifying two or more sort columns, the second column values are sorted within the first. You can see this in the above example, in rows 5 through 8 where the overall result...
因为distinct可能使用group by,了解MySQL如何处理按order by 列或者具有不属于所选列的子句。见12.20.3节, “MySQL Handling of GROUP BY”. In most cases, a DISTINCT clause can be considered as a special case of GROUP BY. For example, the following two queries are equivalent: ...