Question

create procedure InsertMovies
(
    @Title nvarchar(max),
    @Sdesc nvarchar(max),
    @LDesc nvarchar(max),
    @ImgUrl nvarchar(max),
    @TicketCost real, 
    @Seat int, 
    @StrDate DateTime,
    @EndDate DateTime,
    @CineName nvarchar(max)) 
AS 
BEGIN 
    Declare @temp int 
    SET @temp = Convert(int,'select Id from [dbo].[Cinemas] where [Location] = @CineName') 
    INSERT INTO [dbo].[MovieSessions]
    (
        [Title],
        [ShortDescription],
        [LongDescription],
        [ImageUrl],
        [Price],
        [Seats], 
        [StartTime],
        [EndTime],
        [Cinemas_Id]
    ) 
    values
    (
        @Title,
        @Sdesc,
        @LDesc,
        @ImgUrl,
        @TicketCost,
        @Seat,
        @StrDate,
        @EndDate,
        @temp
    ) 
END 
GO

请帮我正确地从select语句中转换值，我可以创建这个程序但是我在执行时遇到错误，这里是错误

Msg 245，Level 16，State 1，Procedure InsertMovies，Line 6

转换varchar值时转换失败＆＃39;从中选择ID   [dbo]。[电影院] [Location] = @ CineName＆＃39;数据类型int。

Answer 1

这部分是您的问题...您将整个查询文本转换为int

SET @temp = Convert(int,'select Id from [dbo].[Cinemas] where [Location] = @CineName')

尝试这样

SET @temp = (select Id from [dbo].[Cinemas] where [Location] = @CineName)

要确认，您在Cinemas表中的ID字段是int类型吗？

Answer 2

在查询中用括号替换单引号：

SET @temp = Convert(int,(select Id from [dbo].[Cinemas] where [Location] = @CineName))

Answer 3

您没有转换特定的int。事实上，您正在尝试将字符串'select Id from [dbo].[Cinemas] where [Location] = @CineName'转换为int，这是不正确的。尝试改变：

SET @temp = Convert(int,(select Id from [dbo].[Cinemas] where [Location] = @CineName))

Answer 4

您可以使用此代码：

<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>Untitled Document</title>
</head>

<body>

<?php


 $Realisateurs=array(" James Cameron", " David O. Russell", " Woody Allen" , " Michael Haneke");

?>

<?php
 for($i=0;$i<4;$i++)
 {
     ?>
     <input type="radio" name"group1" value="<? $Realisateurs[$i] ?>"><?php echo $Realisateurs[$i] ?><br> 
     <?php

 }
 ?> 

</body>
</html>

Answer 5

试试这个：

SET @temp = cast（（从[dbo]中选择前1名。[电影院]其中[位置] = @CineName）as int）

使用top 1来避免乘法结果错误

Answer 6

简单方法：

private Vector2 position;
private Vector2 positionMoveTarget;
private float width;
private float height;
private Rectangle DamnBlock; /* Hit detection test */

/* CODE CODE CODE */ 

if(this.getPositionMoveTarget() != null ){
        if(this.getPosition() == this.getPositionMoveTarget()){
            this.setPositionMoveTarget(null);
        } else {
            Vector2 tmpPosition = new Vector2(this.getPosition());
            Vector2 tmpPositionMoveTarget =  new Vector2(this.getPositionMoveTarget());             
            Vector2 velocity = new Vector2(tmpPositionMoveTarget).sub(tmpPosition).nor().scl(this.getMoveSpeed()*delta);
            Vector2 tmpPositionWithVelocety = new Vector2(tmpPosition).add(velocity);
            if(new Rectangle(tmpPositionWithVelocety.x, tmpPositionWithVelocety.y,this.getWidth(),this.getHeight()).overlaps(DamnBlock)){

            /* 
Calculate the biggest possible "velocety * ( delta - X )", in order to sit directly next to DamnBlock.
But how ? 
*/  

            } else {
                if(tmpPosition.dst2(tmpPositionMoveTarget)<tmpPosition.dst2(tmpPositionWithVelocety)){
                    this.setPosition(this.getPositionMoveTarget());
                    this.setPositionMoveTarget(null);
                } else {
                    this.setPosition(tmpPositionWithVelocety);
                }                   
            }               
        }
    }

Sql Server int转换错误

6 个答案: