选择"Customers" 表的前 3 条记录: 代码语言:sql AI代码解释 SELECT * FROM Customers WHERE ROWNUM <= 3; 添加WHERE 子句 以下SQL 语句从 "Customers" 表中选择前三条记录,其中国家是 "Germany"(对于 SQL Server/MS Access): 代码语言:sql AI代码解释 SELECT TOP 3
SELECT TOP 50 PERCENT * FROM Customers; SQL TOP,LIMIT和ROWNUM示例 以下SQL语句从"Customers"表中选择前三个记录: SELECT TOP 3 * FROM Customers; 以下SQL语句显示了使用LIMIT子句的等效示例: SELECT * FROM Customers LIMIT 3; 以下SQL语句显示了使用ROWNUM的等效示例: SELECT * FROM Customers WHERE ROWNUM ...
选择"Customers" 表的前 3 条记录: SELECT*FROMCustomers WHEREROWNUM<=3; 添加WHERE 子句 以下SQL 语句从 "Customers" 表中选择前三条记录,其中国家是 "Germany"(对于 SQL Server/MS Access): SELECTTOP3*FROMCustomers WHERECountry='Germany'; 以下SQL 语句展示了 MySQL 的等效示例: SELECT*FROMCustomers WHER...
SELECT*FROMCustomersWHEREROWNUM<=3; 添加WHERE 子句 以下SQL 语句从 "Customers" 表中选择前三条记录,其中国家是 "Germany"(对于 SQL Server/MS Access): SELECTTOP3*FROMCustomersWHERECountry='Germany'; 以下SQL 语句展示了 MySQL 的等效示例: SELECT*FROMCustomersWHERECountry='Germany'LIMIT3; 以下SQL 语句展...
Note:SQL Server usesSELECT TOP. MySQL usesLIMIT, and Oracle usesROWNUM. The following SQL statement selects the first three records from the "Customers" table (SQL SERVER): Example SELECTTOP3*FROMCustomers; Try it Yourself » The following SQL statement shows the equivalent example using the ...
Select only the first 3 records of the Customers table: SELECT TOP 3 * FROM Customers; Try it Yourself » Note: Not all database systems support the SELECT TOP clause. MySQL supports the LIMIT clause to select a limited number of records, while Oracle uses FETCH FIRST n ROWS ONLY and...
SQL TOP,LIMIT和ROWNUM示例 以下SQL语句从"Customers"表中选择前三个记录: SELECTTOP3*FROMCustomers; 以下SQL语句显示了使用LIMIT子句的等效示例: SELECT*FROMCustomers LIMIT3; 以下SQL语句显示了使用ROWNUM的等效示例: SELECT*FROMCustomersWHEREROWNUM<=3; ...
SQL SELECT TOP 实例 下面的 SQL 语句从 “Customers” 表中选取头两条记录: SELECT TOP 2 * FROM Customers; SQL SELECT TOP PERCENT 实例 下面的 SQL 语句从 “Customers” 表中选取前面 50% 的记录: SELECT TOP 50 PERCENT * FROM Customers;
SQL SELECT TOP 实例 下面的 SQL 语句从 "Customers" 表中选取头两条记录: 实例 SELECT TOP 2 * FROM Customers; SQL SELECT TOP PERCENT 实例 下面的 SQL 语句从 "Customers" 表中选取前面 50% 的记录: 实例 SELECT TOP 50 PERCENT * FROM Customers; ...
SQL SELECT TOP 实例 下面的 SQL 语句从 "Customers" 表中选取头两条记录: 实例 SELECT TOP 2 * FROM Customers; SQL SELECT TOP PERCENT 实例 下面的 SQL 语句从 "Customers" 表中选取前面 50% 的记录: 实例 SELECT TOP 50 PERCENT * FROM Customers;...