ExampleGet your own SQL Server Select only the first 3 records of the Customers table: SELECTTOP3*FROMCustomers; Try it Yourself » SQL Server / MS Access Syntax: SELECTTOPnumber|percentcolumn_name(s) FROMtable_name WHEREcondition;
syntaxsql 複製 [ WITH <common_table_expression> [ , ...n ] ] SELECT <select_criteria> [ ; ] <select_criteria> ::= [ TOP ( top_expression ) ] [ ALL | DISTINCT ] { * | column_name | expression } [ , ...n ] [ FROM { table_source } [ , ...n ] ] [ WHERE <search...
syntaxsql [WITH<common_table_expression>[ , ...n ] ]SELECT<select_criteria>[ ; ]<select_criteria>::=[TOP(top_expression) ] [ALL|DISTINCT] { * |column_name| expression } [ , ...n ] [FROM{table_source} [ , ...n ] ] [WHERE<search_condition>] [GROUPBY<group_by_clause>] [HA...
適用於:sql Server Azure SQL 資料庫 Azure SQL 受控執行個體 Microsoft Fabric Microsoft Fabric SQL 資料庫中Microsoft網狀架構倉儲中的 SQL 分析端點 指定查詢所要傳回的資料行。 Transact-SQL 語法慣例 語法 syntaxsql 複製 SELECT [ ALL | DISTINCT ] [ TOP ( expression ) [ PERCENT ] [ WITH TIES ]...
SELECT INTO Syntax Copy all columns into a new table: SELECT* INTOnewtable[INexternaldb] FROMoldtable WHEREcondition; Copy only some columns into a new table: SELECTcolumn1,column2,column3, ... INTOnewtable[INexternaldb] FROMoldtable
However, this method is not recommended because it is not the standard SQL syntax and may raise syntax compatibility issues during platform migration. There are many restrictions on using the operator (+): It can appear only in the WHERE clause. If a table join has been specified in the ...
一、TOP-N 1、No Ranking Output Optimization(无排名输出优化) 二、Window Top-N 1、Window Top-N 语法 2、Window Top-N follows after Window Aggregation 3、Window Top-N follows after Windowing TVF 3、Limitation 三、Window Deduplication 1、语法 ...
MaxCompute allows you to query data by usingSELECTstatements. This topic describes the syntax ofSELECTstatements in MaxCompute. This topic also describes how to use SELECT statements to perform operations, such as nested queries, sorting, and queries by group. ...
SELECT 通常是 SQL 语句中的第一个词。 大多数 SQL 语句都是 SELECT 或SELECT...INTO语句。 SELECT 语句最简化的语法为: SELECTfieldsFROMtable 可以通过星号 (*) 来选择表中所有的字段。 以下示例选择 Employees 表中的所有字段。 SQL SELECT*FROMEmployees; ...
mysql mysql> SELECT * FROM ORDER; ERROR 1064 (42000): You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'ORDER' at line 1 正确的 SELECT * FROM ORDER; 结论 我们需要保证表中的字段、表名等没有和保留...