1、查询学生表中前3行数据 SELECT TOP 3 * FROM STUDENT 2、对学生表按年龄排序返回前3行数据 SELECT TOP 3 * FROM STUDENT ORDER BY StuAge 3、TOP N WITH TIES使用 返回结果集前n条记录，以及排序字段值与第n条记录相等的记录。top n with ties 必须与 order by 一同使用 SELECT TOP 3 WITH TIES *...
关于TOP (n) WITH TIES的运用 1 SELECT TOP (5) orderid, orderdate, custid, empid 2 FROM Sales.Orders 3 ORDER BY orderdate DESC, orderid DESC; 4 5 SELECT TOP (5) WITH TIES orderid, orderdate, custid, empid 6 FROM Sales.Orders 7 ORDER BY orderdate DESC; 上述代码执行结果: 即第二...
with ties⼀般是和Top , order by相结合使⽤的,会查询出最后⼀条数据额外的返回值（如果按照order by 参数排序TOP n返回了前⾯n个记录，但是n+1…n+k条记录和排序后的第n条记录的参数值（order by 后⾯的参数）相同，则n+1、…、n+k也返回。n+1、…、n+k就是额外的返回值）。⼆、通过...
with ties一般是和Top , order by相结合使用的,会查询出最后一条数据额外的返回值(如果按照order by 参数排序TOP n返回了前面n个记录,但是n+1…n+k条记录和排序后的第n条记录的参数值(order by 后面的参数)相同,则n+1、…、n+k也返回。n+1、…、n+k就是额外的返回值)。 二、通过实例说明WITH TIES ...
SQL Server Is it possible to use TOP N WITH TIES with Union?Try this one:
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當您搭配DELETE使用TOP (<n>)子句時,刪除作業會在未定義的n 個個數據列數目上完成。 也就是說,DELETE語句會選擇符合WHERE子句中所定義準則的任何數據列數目(n)。 下列範例會從20資料表刪除到期日早於 2002 年 7 月 1 日的PurchaseOrderDetail個資料列。
将TOP (<n>)子句与DELETE一起使用时,删除操作是在未定义的n行数上执行的。 也就是说,DELETE语句选择满足WHERE子句中定义的条件的任何行数(n)。 下面的示例从20表中删除其到期日期早于 2002 年 7 月 1 日的PurchaseOrderDetail行。 SQL USEAdventureWorks2022; GODELETETOP (20)FROMPurchasing.PurchaseOrderDeta...
[WITH TIES] FROM table_name ORDER BY column_name; 1. 2. 3. 4. 5. 6. 其中 expression TOP关键字后面是一个表达式,用于指定要返回的行数。如果使用PERCENT(百分比),则表达式将计算为浮点值,否则将转换为BIGINT值。 PERCENT PERCENT表示查询返回前百分之N的行,N就是表达式expression的值。
When a TOP N WITH TIES reaches the Nth row, it keeps a copy of the tie columns for this row (in this example B==4) and compares each subsequent row to that row. As long as there are rows that match, it keeps returning them. Because the top must compare subsequent rows until it ...