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[2026 Edition] SQL Data Analysis: From Introduction to Practice | SELECT, JOIN, Window Functions, Analysis Patterns + 60 Practice Problems

SQL is a language for retrieving and aggregating data from databases. For data scientists and data analysts, it is a "daily tool" alongside Python and statistics. It is not uncommon for SQL problems ...
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Reading the First SQL in the Official PostgreSQL Tutorial: CREATE TABLE, INSERT, and SELECT

DROP TABLE is a statement to delete a table. By adding IF EXISTS, it will not throw an error even if the table does not exist; it will simply issue a NOTICE and ...
GitHub

Yaesu Web Control

Feedback wanted — especially if your setup isn't mine. I operate FT8 on an FTdx101MP with an SDRplay RSP1B/RSP1 for the spectrum display, so that's the combination that actually gets tested. YWC now ...
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Microsoft 365 and Office

Onedrive search on android does not work Hi, I am running into the following issues: searching files only works after reinstalling the app. The day after it just does not work anymore. It finds 2/3 ...
GitHub

CHANGELOG.md

See API overview. NEW: Feishu Drive Data Source — a new Feishu Cloud Drive connector joins the existing Feishu wiki connector (#2466). New-format Feishu cloud documents (docx) are now synchronized ...