1、SQL Server数据库 select top 10 * from table_name; 2、DB2数据库 select * from table_name fetch first 10 rows only; 3、Oracle数据库 select * from table_name where rownum <=10; 4、MySQL数据库 select * from table_name limit 10; 5、Informix 数据库 select first 10 * from table_name...
In SQL, the LIMIT clause allows us to restrict the number of rows that are returned from a given SQL query. For example, in a select statement, instead of returning all the rows from the table which may contain over 1000 records, we can choose to view only the first 10 rows. The fol...
nameAS姓名FROMt_stu; #别名中没有空格时,""可以省略SELECTidAS编 号,nameAS"姓名"FROMt_stu; #错误,别名中有空格时,""不可以省略SELECTidAS"编号",nameAS"姓名"FROMt_stu; #这一条才最符合SQL编写规范,不建议省略
These five rows are combined with the results of the first SELECT by using the UNION ALL keywords. This example doesn't remove the duplicates between the two sets of five rows. The final result has 10 rows.SQL Copy USE AdventureWorks2022; GO IF OBJECT_ID('dbo.EmployeeOne', 'U') IS ...
接下來是前述 T-SQL SELECT 實際輸出之 153 個資料列的取樣。 resource_type 的資料列與本文他處所舉之 event_session_test3 範例使用的述詞篩選 相關。複製 /*** 5 sampled rows from the actual 153 rows returned. NOTE: 'resource_type' under 'Column'. Package Object Object-Type O--C Column ...
WITH MEMBER [Date].[Calendar].[First8Months2003] AS Aggregate( PeriodsToDate( [Date].[Calendar].[Calendar Year], [Date].[Calendar].[Month].[August 2003] ) ) SELECT [Date].[Calendar].[First8Months2003] ON COLUMNS, [Product].[Category].Children ON ROWS FROM [Adventure Works] WHERE [Mea...
{ FIRST | LAST } ]} [, ...] ] [ { [ LIMIT { count | ALL } ] [ OFFSET start [ ROW | ROWS ] ] } | { LIMIT start, { count | ALL } } ] [ FETCH { FIRST | NEXT } [ count ] { ROW | ROWS } ONLY ] [ {FOR { UPDATE | SHARE } [ OF table_name [, ...] ] [...
代码语言:sql 复制 SELECT * FROM Customers FETCH FIRST 3 ROWS ONLY; 使用旧版 Oracle 的 ROWNUM 以下SQL 语句展示了旧版 Oracle 的等效示例: 选择"Customers" 表的前 3 条记录: 代码语言:sql 复制 SELECT * FROM Customers WHERE ROWNUM <= 3; 添加WHERE 子句 以下SQL 语句从 "Customers" 表中选择前三...
“SELECT SQL_CALC_FOUND_ROWS * FROM score LIMIT 0,10”这条语句表示在结果集中显示从第0行开始的共10行数据 答案:正确 你可能感兴趣的试题 AI智答 联系客服周一至周五 08:30-18:00 剩余次数:0 Hello, 有问题你_
FIRST 返回从查询选择的第一行。TOP 可从查询返回指定的行数,其中 <number-of-rows> 的范围为 1 - 2147483647,可以是整数常量或整数变量。 注意 不能在同一查询中使用 TOP 和 LIMIT。 FIRST 和 TOP 主要与 ORDER BY 子句一起使用。如果没有与 ORDER BY 子句一起使用这些关键字,则同一查询每次运行的结果...