输入:{"headers":{"Employee":["Id","Salary"]},"rows":{"Employee":[[1,100]]}}输出:{"headers":["SecondHighestSalary"],"values":[]}预期:{"headers":["SecondHighestSalary"],"values":[[null]]} 恍然大悟,原来是没有考虑”如果不存在第二高的薪水,那么查询应返回 null“这个情况,找到问题就好...
这样做是取表中第二个数字为空时,即表中只有一个数字,或者全部数字都是一样的并列第一,无法返回空值 SELECT(SELECTDISTINCTSalaryFROMEmployeeORDERBYSalaryDESCLIMIT1OFFSET1)ASsecondHighestSalary
Write a SQL query to get the second highest salary from theEmployeetable. +---+---+ | Id | Salary | +---+---+ | 1 | 100 | | 2 | 200 | | 3 | 300 | +---+---+ For example, given the above Employee table, the second highest salary is200. If there is no second high...
NULL) AS SecondHighestSalary 知识点总结: limit offset 使用 SELECT column_list 选择要读取的列名 FROM table1 选择表名 ORDER BY column_list 排列顺序 LIMITrow_count OFFSET offset 读取列数为 row count, offset 为跳过多少列 图片来自https://www.sqltutorial.org/sql-limit/ 注意,使用limit取得最大值最...
In other words, SQL Server never automatically decreases the value, only increases it. If you need to back up a TDE encrypted database with MAXTRANSFERSIZE = 65536, you must specify WITH NO_COMPRESSION or ensure that the backup compression default server configuration is set to 0. Note There...
Write a SQL query to get the second highest salary from the Employee table. +---+---+ | Id | Salary | +---+---+ | 1 | 100 | | 2 | 200 | | 3 | 300 | +---+---+ For example, given the above Employee table, the query should return 200 as the second highest salary....
Group By and it's Highest Value using SQL Query In the table below, how do I group by Unit and then get the highest value from Quantity of that group? I have put 21 in row 4 under HighestValue column since its the highest value among all records in Unit ...
SQL Copy --get object name select OBJECT_NAME (78623323); Summary and resultsUsing the technique above we were able to confirm that the contention was occurring on a clustered index with a sequentially increasing key value on the table which by far received the highest number of inserts. Thi...
The value of the SQLDBDID field of the DBDB is not valid. It should be set to the value SQLDBDB1. 4 The value of the SQLDBCSS field of the DBDB is not valid. When using the CREATE DATABASE CLP command, the value specified in the COLLATE USING option is invalid. 5 The co...
TheCol_or_Param_Numvalue was not equal to the ordinal of the parameter that is available. (DM) The specified column was bound. This description does not apply to drivers that return the SQL_GD_BOUND bitmask for the SQL_GETDATA_EXTENSIONS option inSQLGetInfo. ...