Excel Bank | اکسل بانک | United States America (US)

Create: 2025-05-10 Update: 2025-07-06 07:44:45

در Power BI، سه Data Connectivity Mode اصلی وجود دارد که نحوه اتصال داده‌ها به گزارش شما را تعیین می‌کنند:

1. Import Mode (وارد کردن داده‌ها)
توضیح: داده‌ها یک‌بار از منبع خوانده و در فایل Power BI ذخیره می‌شوند.

مزایا: سریع‌ترین عملکرد، امکان استفاده از تمام قابلیت‌های Power BI مانند DAX و مدل‌سازی پیچیده.

معایب: داده‌ها به‌صورت لحظه‌ای به‌روزرسانی نمی‌شوند مگر اینکه refresh شود.

2. DirectQuery Mode
توضیح: داده‌ها در Power BI ذخیره نمی‌شوند؛ بلکه هر بار گزارش اجرا می‌شود، مستقیماً از منبع داده پرس‌وجو می‌شود.

مزایا: همیشه داده‌های به‌روز (real-time)، مناسب برای داده‌های بزرگ.

معایب: سرعت کمتر نسبت به Import، محدودیت‌هایی در مدل‌سازی و DAX.

3. Live Connection
توضیح: شبیه به DirectQuery است ولی مخصوص اتصال به مدل‌های تحلیلی مثل SSAS (SQL Server Analysis Services) یا Power BI Dataset.

مزایا: استفاده از مدل از پیش ساخته شده (centralized model).

معایب: نمی‌توان جدول جدیدی وارد کرد یا مدل داده را تغییر داد.

Excel Bank | اکسل بانک

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3.4K viewsAshkan Ahmadi, May 10 at 06:45

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Telegram announces Search Filters

With the help of the Search Filters option, users can now filter search results by type. They can do that by using the new tabs: Media, Links, Files and others. Searches can be done based on the particular time period like by typing in the date or even “Yesterday”. If users type in the name of a person, group, channel or bot, an extra filter will be applied to the searches.

در Power BI، سه Data Connectivity Mode اصلی وجود دارد که نحوه اتصال داده‌ها به گزارش شما را تعیین می‌کنند:

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