当我尝试执行以下查询时:
SELECT filesinfo.IsFolder INTO @IsFolder, filesinfo.FileName
FROM filesinfo
WHERE filesinfo.FileID = 1;
发生以下错误:
[ SQL ] SELECT filesinfo.IsFolder INTO @IsFolder, filesinfo.FileName FROM filesinfo WHERE filesinfo.FileID = 1; [Err] 1327 -未声明的变量:filesinfo
但是当像这样删除第二个参数时:
SELECT filesinfo.IsFolder INTO @IsFolder
FROM filesinfo
WHERE filesinfo.FileID = 1;
没有发生错误