一班 陈一 36 一班 王五 98 二班 赵二 60 二班 钱六 61 二班 顾九 91 二班 孙八 50 三班 孙文 97 四班 张涛 87 四班 赵云 88 ... 希望得到取前10名最高成绩的结果: 使用如下SQL查询语句即可: Select DISTINCT TOP 10 * FROM 成绩表 orDER BY 成绩表.分数 DESC; 附件: 点击下载此示例 演示...
SELECT * FROM top_ten_employees; 最后,存储过程也可以帮助用户限制返回的行数。存储过程是一段代码,它可以被反复使用。下面是一个例子: CREATE PROCEDURE get_top_employees AS SELECT TOP 10 * FROM employees ORDER BY employee_id; 以上代码创建了一个存储过程。在将来,只需使用以下语法调用这个存储过程: EXE...
SELECT VALUE p.price FROM products p WHERE p.price BETWEEN 17.25 AND 25.50 JSON 复制 [ 20 ] 还可以在 SELECT 子句中使用 BETWEEN 关键字,如以下示例所示。 NoSQL 复制 SELECT (p.price BETWEEN 0 AND 10) AS booleanLessThanTen, p.price FROM products p JSON 复制 [ { "booleanLessThan...
NoSQL 複製 SELECT VALUE p.price FROM products p WHERE p.price BETWEEN 17.25 AND 25.50 JSON 複製 [ 20 ] 您也可以在 SELECT 子句中使用 BETWEEN 關鍵字,如下列範例所示。NoSQL 複製 SELECT (p.price BETWEEN 0 AND 10) AS booleanLessThanTen, p.price FROM products p ...
sqlContext.sql("select * from (select theyearmonth,ordernumber,amount,Row_Number() OVER (partition by theyearmonth order by amount desc) as rank from tempyearmonthorder) as temp where temp.rank <= 10").drop("rank").registerTempTable("tempyearmonthtopten")sqlContext.sql("select * from ...
SELECT * --this isn't good at all FROM dbo.EquadorExhangeRates; --disply the first ten rows from the table to see what we have SELECT TOP 10 UER.CurrencyRateDate, UER.AverageRate, UER.EndOfDayRate, UER.ToCurrency, UER.ToRegion, UER.FromCurrency, UER.FromRegion ...
The following example returns information about the top ten stored procedures identified by average elapsed time. SQLCopy SELECTTOP10d.object_id, d.database_id, OBJECT_NAME(object_id, database_id)'proc name', d.cached_time, d.last_execution_time, d.total_elapsed_time, d.total_elapsed_time...
The default behavior of SqlConnection.Open() can be overridden to disable the ten-second delay and automatic connection retries triggered by transient errors.cs Copy using(SqlConnection sqlConnection = new SqlConnection("Data Source=(local);Integrated Security=true;Initial Catalog=AdventureWorks;"))...
<?xml version="1.0"?> <?xml-stylesheet type="text/xsl" href="style.xsl"?> <top-ten-topics connection="demo" xmlns:xsql="urn:oracle-xsql"> <topics> <xsql:query max-rows="10"> SELECT subject FROM topics ORDER BY last_modified DESC </xsql:query> </topics> <categories> <xsql:includ...
The following example returns the top ten employees ranked by their salary. Because a PARTITION BY clause was not specified, the RANK function was applied to all rows in the result set. SQL USEAdventureWorks2022SELECTTOP(10) BusinessEntityID, Rate,RANK()OVER(ORDERBYRateDESC)ASRankBySalaryFROMHu...