11

我正在尝试使用 WITH 子句创建一个持久表，但是出现错误。

对于上下文，我目前找到的答案是

CREATE TABLE my_table
AS 
WITH my_tables_data AS ( 
   SELECT another_table.data1 AS some_value 
   FROM another_table
) 
SELECT * 
FROM some_data;

但是，我收到一个错误

消息 319，级别 15，状态 1，第 5 行关键字“with”附近的语法不正确。如果此语句是公用表表达式、xmlnamespaces 子句或更改跟踪上下文子句，则前面的语句必须以分号结束。

我的代码是

CREATE TABLE SalesOrdersPerYear  
WITH t1 AS (
    -- Define the CTE expression name and column list.  
    WITH Sales_CTE (SalesPersonID, BaseSalary)  
    AS  
    -- Define the CTE query.  
    (  
        SELECT SALES_PERSON.SALES_PERSON_ID, SALES_PERSON.BASE_SALARY  
        FROM SALES_PERSON  
        WHERE SALES_PERSON_ID IS NOT NULL  
    )  
    -- Define the outer query referencing the CTE name.  
    SELECT SalesPersonID, BaseSalary AS TotalSales  
    FROM Sales_CTE   
    ORDER BY SalesPersonID, BaseSalary;  
)

有人可以为此提供一些指导吗？

提前谢谢了！

4

2 回答 2

12

这不是 sql server 的有效语法。您可以使用CREATE TABLE并指定列名和类型来创建表，也可以执行SELECT INTO包含数据的语句。

方法 1：创建表，然后填充：

CREATE TABLE SalesOrdersPerYear 
( SalesPersonID int, BaseSalary float)
;

WITH Sales_CTE (SalesPersonID, BaseSalary)  
AS  
(  
    SELECT SALES_PERSON.SALES_PERSON_ID, SALES_PERSON.BASE_SALARY  
    FROM SALES_PERSON  
    WHERE SALES_PERSON_ID IS NOT NULL 
)  
insert into SalesOrdersPerYear  
SELECT SalesPersonID, BaseSalary AS TotalSales  
FROM Sales_CTE   
ORDER BY SalesPersonID, BaseSalary;

方法 2 - 一步到位

WITH Sales_CTE (SalesPersonID, BaseSalary)  
AS  
(  
    SELECT SALES_PERSON.SALES_PERSON_ID, SALES_PERSON.BASE_SALARY  
    FROM SALES_PERSON  
    WHERE SALES_PERSON_ID IS NOT NULL 
)  
select  SalesPersonID, BaseSalary AS TotalSales  
into SalesOrdersPerYear
FROM Sales_CTE   
ORDER BY SalesPersonID, BaseSalary;

当您需要指定有关表的更多信息（主键、索引、外键等）时，请使用方法 1。

对更临时的事情使用方法 2。（您通常会在此处使用临时表，例如 #SalesOrdersPerYear）。

无论哪种方式，数据现在都存储在您的表中，您可以再次使用它。

使用临时表：

-- Check for existence and drop first to avoid errors if it already exists.
if OBJECT_ID('tempdb..#SalesOrdersPerYear') is not null
    drop table #SalesOrdersPerYear

WITH Sales_CTE (SalesPersonID, BaseSalary)  
AS  
(  
    SELECT SALES_PERSON.SALES_PERSON_ID, SALES_PERSON.BASE_SALARY  
    FROM SALES_PERSON  
    WHERE SALES_PERSON_ID IS NOT NULL 
)  
select  SalesPersonID, BaseSalary AS TotalSales  
into #SalesOrdersPerYear
FROM Sales_CTE   
ORDER BY SalesPersonID, BaseSalary;

您还可以将其定义为表变量，这在方法之间有点交叉：

declare @SalesOrdersPerYear table
( SalesPersonID int, BaseSalary float)
;

WITH Sales_CTE (SalesPersonID, BaseSalary)  
AS  
(  
    SELECT SALES_PERSON.SALES_PERSON_ID, SALES_PERSON.BASE_SALARY  
    FROM SALES_PERSON  
    WHERE SALES_PERSON_ID IS NOT NULL 
)  
insert into @SalesOrdersPerYear  
SELECT SalesPersonID, BaseSalary AS TotalSales  
FROM Sales_CTE   
ORDER BY SalesPersonID, BaseSalary;

此选项将仅在此批次中持续存在，并且不需要删除 - 就像任何其他变量一样。

于 2017-03-20T15:43:39.477 回答
-2 
CREATE VIEW AS my_view
AS 
WITH my_tables_data AS ( 
   SELECT another_table.data1 AS some_value 
   FROM another_table
) 

SELECT * 
FROM some_data; 

CREATE TABLE my_table AS 
SELECT * FROM my_view;
于 2019-12-05T12:35:48.560 回答