Question

SELECT 
    @MaxSeq = (CASE 
                  WHEN (SELECT COUNT(*) FROM app_Attachments 
                        WHERE app_Attachments.AppId = @appID) <= 0 
                     THEN 1 
                     ELSE (SELECT (MAX(seq)+1) 
                           FROM app_Attachments 
                           WHERE app_Attachments.AppId = @appID)
               END)

DECLARE @Id INT;

SELECT @Id = (COALESCE((SELECT MAX(Id)+1 FROM app_Attachments), 1))

INSERT INTO app_Attachments (Id, AppID, AttName, AttContentType, AttData, AddedBy, AddedDate, Seq)
    SELECT 
        @Id, AppId, ImgNames, ImgType, Bytes, @AddedBy, @AddedDate, @MaxSeq 
    FROM
        @Attachments --user defined table

CREATE TYPE [dbo].[AppsAttachments] AS TABLE
       (
            [AppId] [INT] NULL,
            [Bytes] [VARBINARY](MAX) NULL,
            [ImgNames] [NVARCHAR](MAX) NULL,
            [ImgType] [NVARCHAR](200) NULL
       )

使用存储过程将表插入到表中，该存储过程具有用户定义的表作为参数，仅当传递的表有一行时才成功，将主键设置为标识后，将主键更改为要输入的手动整数后，它运行良好问题发生了

Answer 1

如果Id不是身份，那么您需要确保Id不重复。使用Row_number()生成一个连续的数字序列

insert into app_Attachments (Id,AppID,AttName,AttContentType,AttData,AddedBy,AddedDate,Seq)
select  @Id + ROW_NUMBER() OVER (ORDER BY AppId) - 1,
        AppId,
        ImgNames,
        ImgType,
        Bytes,
        @AddedBy,
        @AddedDate,
        @MaxSeq 
from    @Attachments --user defined table

如果您还需要增加Seq，请在查询中添加row_number()

只能将一行用户定义的表传递给存储过程

1 个答案: