Java 结果集未从函数返回

Question

我在 SQL 中创建了自己的类型，并且该函数使用自定义类型。该函数输出总计数 med 和平均值。 SSMS 中一切正常，但是当我运行 Java 程序时，我一直没有返回任何结果集。

这是我的函数和数据类型

CREATE TYPE [dbo].[StatsInputTableType] AS TABLE(
    [Name] [VARCHAR](50) NOT NULL,
    [Value] [DECIMAL](18, 2) NOT NULL
)
GO

CREATE FUNCTION [dbo].[CalcStats]( @TableName StatsInputTableType READONLY)
RETURNS @retStats TABLE (
    Name VARCHAR(50), 
    ValueCount INT,
    ValueTotal DECIMAL(18,2),
    ValueAverage DECIMAL(18,2), 
    ValueMedian DECIMAL(18,2)
)
AS
BEGIN
DECLARE @ordered_rows TABLE (
    Name VARCHAR(50), 
    Value DECIMAL(7,2), 
    RowAsc BIGINT
)
INSERT INTO @ordered_rows
    SELECT Name, Value, ROW_NUMBER() OVER (PARTITION BY Name ORDER BY Name, Value)
        FROM @TableName
        ORDER BY Name, Value OFFSET 0 ROWS;

INSERT INTO @retStats
SELECT ftn.Name, 
        COUNT(ftn.Name) AS ValueCount, 
        SUM(ftn.Value) AS ValueTotal,
        CAST(AVG(ftn.Value) AS DECIMAL(5,2)) AS ValueAverage, 
        MAX(medinf.ValueMedian) AS ValueMedian
FROM @TableName ftn
    INNER JOIN (SELECT tn.Name, 
                        AVG(Value) AS ValueMedian 
                FROM @ordered_rows tn
                    INNER JOIN (SELECT rows.Name, 
                                        (MAX(rows.RowAsc) + MIN(rows.RowAsc))/2.0 AS averow
                                FROM @ordered_rows rows
                                GROUP BY rows.Name
                    ) AS averow ON tn.Name = averow.Name
                WHERE ABS(tn.RowAsc - averow) < 0.6
                GROUP BY tn.Name
                ORDER BY tn.Name OFFSET 0 ROWS 
    ) medinf ON medinf.Name = ftn.Name
GROUP BY ftn.Name
ORDER BY ftn.Name OFFSET 0 ROWS
RETURN 
END

这是如何在 SQL 中运行它并输出正确的值。

DECLARE @myTable StatsInputTableType
INSERT INTO @myTable 
       VALUES (
       'Pancakes',5),(
       'Pancakes',7),(
       'Pancakes',15),(
       'Pancakes',5),(
       'Pancakes',8),(
       'Pancakes',10),(
       'Pancakes',5),(
       'Pancakes',6),(
       'Hotdogs',4),(
       'Hotdogs',3),(
       'Hotdogs',2),(
       'Hotdogs',1),(
       'Hotdogs',2),(
       'Hotdogs',3),(
       'Hotdogs',4)
SELECT * FROM dbo.CalcStats(@myTable)
ORDER BY Name

Name    ValueCount  ValueTotal  ValueAverage    ValueMedian
Hotdogs     7   19.00           2.71             3.00
Pancakes    8   61.00           7.63        6.50

现在是 Java 部分。我正在使用 Spring 框架和 jdbc 模板，并有一个对象映射器，但我什至没有到达那部分。

我尝试了以下方法：

private JdbcTemplate jdbcTemplate;

String sql = "DECLARE @myTable StatsInputTableType "
        +"INSERT INTO @myTable " 
         +" VALUES ( "
         +" 'Pancakes',5),( "
         +" 'Pancakes',7),( "
         +" 'Pancakes',15),( "
         +" 'Pancakes',5),( "
         +" 'Pancakes',8),( "
         +" 'Pancakes',10),( "
         +" 'Pancakes',5),( "
         +" 'Pancakes',6),( "
         +" 'Hotdogs',4),( "
         +" 'Hotdogs',3),( "
         +" 'Hotdogs',2),( "
         +" 'Hotdogs',1),( "
         +" 'Hotdogs',2),( "
         +" 'Hotdogs',3),( "
        +"  'Hotdogs',4)"
        +"SELECT * FROM dbo.CalcStats(@myTable)"
        +"ORDER BY Name;";
        
        
        List<AvgMedTotalObj> returnValue = null;
        try {
            returnValue =  jdbcTemplate.query(sql, new AvgMedTotalObjMapper());
            
            System.out.println("test");
        } catch (EmptyResultDataAccessException e) {
            
        } catch (DataAccessException e) {
            logger.error("JDBC statement failed. " + "Exception: ", e);
            
        }

并不断收到此错误：该语句未返回结果集。

org.springframework.jdbc.UncategorizedSQLException：StatementCallback； SQL 的未分类 SQLException [DECLARE @myTable StatsInputTableType INSERT INTO @myTable VALUES ( 'Pancakes',5),( 'Pancakes',7),( 'Pancakes',15),( 'Pancakes',5),( 'Pancakes' ,8),( '煎饼',10),('煎饼',5),('煎饼',6),('热狗',4),('热狗',3),('热狗',2 ),( '热狗',1),('热狗',2),('热狗',3),('热狗',4)SELECT * FROM dbo.CalcStats(@myTable)按名称排序;]; SQL状态[空]；错误代码[0]；该语句没有返回结果集。嵌套异常是 com.microsoft.sqlserver.jdbc.SQLServerException: 该语句没有返回结果集。

所以不用说，我真的很困惑为什么 SSMS 给我一个结果集，而当我从 Java 调用它时却没有。

任何帮助将不胜感激。

Answer 1

您可以在两条语句之间缺少分号。