Excel数据导入导出缓慢的问题长期困扰着许多数据分析人员。面对动辄数十万甚至百万行的数据，Excel常常出现卡顿、崩溃，严重影响工作效率。 2025年，随着数据量的持续增长，如何高效地进行数据导入导出成为了一个亟待解决的问题。本文将深入探讨如何利用 SQL 批量操作，将Excel数据导入导出的效率提升数倍，彻底告别手动复制粘贴的低效时代。

To enter data in Excel, you can either type it in or import it from different sources. It’s easy to import data from a standard .CSV format, but what about importing it from a database? You can ...

【环球网科技综合报道】7月23日消息，微软公司宣布网页版Excel完成重大功能升级，推出Power Query Refresh能力。该功能支持个人及企业用户直接通过云端界面刷新外部数据源，无需再将文件下载至本地操作。 此前，网页版Excel用户若需更新外部数据源（如SQL数据库 ...

Q. There was a December 2020 article in the JofA about cleaning and joining data using a program called Alteryx, but we don’t have access to this program. Could you explain how to do those tasks using ...

Have you ever found yourself endlessly clicking through repetitive steps in Excel, wishing there was a way to make the process smarter and faster? While Power Query is a fantastic option for ...

How to combine values from a column into a single cell using Microsoft Excel’s Power Query Your email has been sent The article How to concatenate values in a single Excel column to a single row shows ...

Microsoft Excel: How to use Power Query to display a list of duplicate values or records Your email has been sent Whether duplicate records are good or bad depends on specific conventions that you ...

The January 2017 JofA article “Data Mining Your General Ledger With Excel” presents a step-by-step, formula-based approach to extracting general ledger data and then scrubbing them so that they can be ...

Using the External Data Connection feature in Excel, you can acquire information from external sources, such as Access and SQL Server. The data remains stored at its original source, but the data ...

Have you ever found yourself staring at a sprawling Excel workbook, wondering if you’re using the right tool for the job? Between Power Query, Power Pivot, and VBA, it’s easy to feel like you’re ...