在SQL中,可以使用以下方式将查询结果生成临时表: 使用CTE(Common Table Expression): WITH temp_table AS ( SELECT column1, column2, ... FROM table_name WHERE condition ) SELECT * FROM temp_table; 复制代码 使用子查询: SELECT * INTO temp_table
在 SQL Server 中,我们可以使用CREATE TABLE语句创建临时表,并将结果集插入到临时表中。通过创建临时表,我们可以在需要的时候随时查询和操作结果集。 以下是使用临时表存储结果集的示例代码: -- 创建临时表CREATETABLE#TempTable (Column1INT,Column2VARCHAR(50))-- 将结果集插入到临时表中INSERTINTO#TempTable (C...
insert into @tempResult select convert(varchar(10), CreatedDate, 120) from cte_table option (maxrecursion 0) end return; end go 调用函数示例: -- 示例1(数字): select * from dbo.fun_ConcatStringsToTable(1, 10000) -- 示例2(数字文本): select * from dbo.fun_ConcatStringsToTable('1', '...
递归 CTE 是一个重复执行初始 CTE 以返回数据子集直到获取完整结果集的公用表表达式。 下面先创建一个表,并插入一些数据: create table Role_CTE ( Id int not null, Name nvarchar(32) not null, ParentId int not null ) insert into Role_CTE(Id,Name,ParentId) select '1','超级管理员','0' union...
在这个例子中,我们使用WITH子句定义了一个 CTEemployee_manager,然后在主查询中使用DISTINCT关键字来避免重复结果。 示例代码 代码语言:txt 复制 -- 创建示例表 CREATE TABLE employees ( id INT PRIMARY KEY, name VARCHAR(100), manager_id INT ); -- 插入示例数据 INSERT INTO employees (id, name, manager...
-- 创建临时表CREATETABLE#TempTable (IDINT,Name NVARCHAR(50));-- 插入查询结果INSERTINTO#TempTable (ID, Name)SELECTID,NameFROMCustomersWHERECountry='USA';-- 使用临时表进行下一步查询SELECT*FROM#TempTable WHERE Name LIKE 'A%';-- 删除临时表DROPTABLE#TempTable; ...
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11: DROP TABLE #table 12: end 使用CTE表达式: 1: Create procedure Performance_Solution_CTEexpression 2:as 3: begin 4: SET NOCOUNT ON; 5: With tempas 6: ( 7: select S.empid,S.empname,T.deptnameas Department,S.salary from Employees s inner ...
Insert the rows from the results of the SELECT statement If row insertion fails, the temporary table will exist, but it will be empty. If you don’t want that to happen, use explicit transactions. SELECT INTO Temp Table Examples
1:create procedure Performance_Solution_Table_Paramters @Temptable Specialtable Readonly2:as3:begin4:select*from @Temptable5:end6:Finally,execute the stored procedure:7:declare @temptable_value specialtable8:insert into @temptable_value select'1','Jone'union select'2','Bill'9:exec dbo.SP_Result...