string sql = "SELECT * FROM [" + sheetName + "$]"; connection = new OleDbConnection(connectionString); connection.Open(); OleDbCommand command = new OleDbCommand(sql, connection); OleDbDataAdapter dataAdapter = new OleDbDataAdapter(command); DataSet excelOriginalData = new DataSet(); dataTable.C...
一、前言 我们在做前端时,会遇到这样的需求,上传Excel文件,并且还要和填写的表单数据,一起发送.我们知道el-upload默认的是选中文件后直接请求到后端的接口.现在就需要我们修改这种默认的上传形式,和填写完的form表单一起请求后端接口. 二、前端页面展示 三、表单代码 <el-dialog title="导入源数据库表单信息" :visi...
在普通形式的模型中模拟upload_to函数,可以通过以下步骤实现: 首先,在模型中定义一个字段来存储上传的文件。可以使用FileField或ImageField字段类型,具体根据需要选择。 代码语言:txt 复制 from django.db import models def upload_to(instance, filename): # 自定义上传路径和文件名 return 'uploads/{0}/{1...
这是预期的行为。laravelexcel使用数据库事务来确保执行导入时的数据完整性。您有失败,因此整个事务被回滚。 https://docs.laravel-excel.com/3.1/imports/validation.html#database-transactions #数据库事务整个导入自动包装在数据库事务中,这意味着每个错误都将回滚整个导入。使用批插入时,将仅回滚当前批。
Scenario #3 - Single MS Excel file upload limited by size The user drags an MSWord document onto the file upload widget. The widget shows an error. The user drags an MSExcel file that is larger than the allowed size. The widget shows an error. ...
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ExcelDataValidation(dt.Rows[i]); }stringres = JsonHelper.ToGridJson(dt, dt.Rows.Count);//转化为JsonSession["GridList"] = res; Response.Write(res); }return""; } 其中重要的工具类:OleDBHelper: publicstaticclassOleDBHelper{publicstaticDataTableDoOleSql(stringdatabase,stringfileName){stringstrCo...
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When attempting to upload an Excel file (.xlsx) which file name contain symbols, the system changes the file type after upload, causing it to become a different file format. This issue prevents users from uploading and downloading the intended Excel files.Azure...
A simple solution to getting your data into Snowflake Stop fighting with CREATE TABLE statements and other complex command line options just to import a CSV document into Snowflake. Any CSV File Bring your google sheet, excel, text editor and more Simple UI No SQL, just drag and drop your...