Example: SQL ORDER BY with multiple columns ORDER BY With WHERE We can also useORDER BYwith theSELECT WHEREclause. For example, -- select last_name and age of customers who don't live in the UK-- and sort them b
When the rows to be read can be read during the optimization phase (for example, by reading index rows), there is no need to read any tables during query execution. 满足上述两个条件就会有这个优化提示信息. 即不会读取任何表. 所以这里耗费时间是0 ORDER BY LIMIT Extra提示:Backward index scan;...
### SQL: SELECT Id, name, state FROM city WHERE (state = ?) order by tk.mybatis.mapper.entity.Example$OrderBy@603256ca Cause: com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server ...
ORA-00907: 缺失右括号 首先在in(子查询)用法使用order by 会报错,其次,子查询里用order by,纯属多此一举,子查询的目的,只是找出合适的数据。如果需要排序,在外边排即可。 示例如下: Select * fromTABEL_EXAMPLE where ID in(select ID from TABLE_EXAMPLE where ID>500 oder byID DESC) 解决方案如下: Selec...
We are now set to try a few examples based on the ORDER BY DESC statement with the help of the student_report table. SQL queries to illustrate the basic functionality of ORDER BY DESC statement Example #1 Sort the student_report table in such a manner that the row with the highest marks...
ORDER BY 2 DESC; Example 3: ORDER BY a single column using a column not in the SELECT statementThe column(s) we use to sort the result do not need to be in the SELECT clause. For example, the following SQL, SELECT Store_Name FROM Store_Information ORDER BY Sales DESC; works...
This SQL tutorial explains how to use the SQL ORDER BY clause with syntax and examples. The SQL ORDER BY clause is used to sort the records in the result set for a SELECT statement.
OrderbyBirthDateDESC Example 3: Sort results by column positions in a Select statement using SQL Order By clause In previous examples, we specified the column name in Order by clause to sort results in ascending or descending order. We can also specify column position in Order by clause. ...
order by the_count desc"""// using 'false' in 'show' tells spark to print the full column widthsspark.sql(q).show(100,false) That query’s output looks like this: +---+---+ |title |the_count| +---+---+ |Forrest Gump (1994) |115 | |Princess Bride, The (1987)...
ORDER BY自居中指定要进行排序的字段,字段有2中排序模式:升序:ASC,默认降序:DESC,需要编写执行顺序:1、FROM2、WHERE3、SELECT4、ORDER BY因为ORDER BY是在SELECT执行后执行,那么ORDER BY就可以使用SELECT字句中设置的别名。SQL语法SELECT [DISTINCT] * | 列 [AS] [别名] , 列 [AS] [别名],......