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17/10/2025

📊 Company Employee Intranet SQL — Post #19 🌍

Some employees don’t just collaborate outside their department — they connect with multiple teams across the company. These are your cross-functional connectors.

In this post, we:
✅ Counted the number of distinct departments each employee works with
✅ Used COUNT(DISTINCT ...) to avoid double-counting
✅ Added STRING_AGG to show a clear list of departments collaborated with
✅ Ordered results so your most cross-functional staff appear first

🔎 Insights you now get instantly:

Engineering staff collaborating with both HR & Finance → strong connectors

HR staff collaborating with Finance → targeted cross-team role

Finance staff supporting Engineering → bridging finance & tech

Takeaway: Measuring project diversity highlights employees who act as bridges across multiple departments — the backbone of collaboration.

🔜 Next in SQL Series #20: We’ll build a company-wide collaboration map — combining all the patterns we’ve explored into one advanced query.

17/10/2025

📋 Python Snippet: Clipboard Manager

Want to copy & paste text directly from your Python scripts?
This snippet uses pyperclip to give you cross-platform clipboard access (Linux, macOS & Windows).

✅ Copy text safely to clipboard
✅ Paste text back when needed
✅ Perfect for automation scripts, dev tools & productivity hacks

💡 Example Output:

✅ Copied text to clipboard.
📋 Pasted: Hello from DataDrivenInsights! 🚀

A lightweight but powerful way to integrate clipboard automation into your Python projects 🚀

17/10/2025

Lock Body Scroll (Modal-Safe, iOS-Friendly, Re-entrant)
Keep modals classy—no background scroll, no layout jump, no iOS jank. This tiny scroll lock helper freezes the page by pinning the body with position: fixed, preserves the current scroll position, and adds a scrollbar gap so your content doesn’t shift when the scrollbar disappears. It’s re-entrant, so multiple overlays can lock safely and release in order.

Why it’s production-ready
• Re-entrant locking (reference-counted) for stacked dialogs/sidebars
• Zero layout shift via dynamic padding equal to the scrollbar width
• iOS-friendly: uses fixed positioning instead of overflow:hidden
• Clean teardown: restores scroll position and all inline styles

Great for
• Modals, drawers, command palettes, lightboxes
• Mobile menus & multi-step overlays
• Any flow where background scroll must stay frozen

Ship overlays that feel solid and polished—no more shaky pages. ⚡

16/10/2025

📊 Company Employee Intranet SQL — Post #18 🤝

True collaboration happens when employees work outside their home department. These cross-team contributors often become the bridges that keep the company connected.

In this post, we:
✅ Compared each employee’s home department to the department of their assigned project
✅ Flagged anyone contributing outside their primary team
✅ Returned project details, roles, and hours committed
✅ Ordered results so cross-functional activity is easy to review

🔎 Insights you now get instantly:

Engineers helping HR with onboarding projects

Finance staff supporting Engineering upgrades

HR specialists embedded in Finance reporting projects

Takeaway: Cross-department collaboration queries reveal your real knowledge-sharing champions.

🔜 Next in SQL Series #19: We’ll measure project diversity per employee — how many different departments each person collaborates with.

16/10/2025

📂 Python Snippet: Safe Temporary File Manager

Need a quick file for temporary data but don’t want to leave junk behind? 🗑️
This snippet uses Python’s tempfile to create files that are secure and auto-deleted once you’re done.

✅ Secure temp file creation
✅ Auto-cleanup — no leftover files
✅ Perfect for intermediate results, configs & API data

💡 Example Output:

✅ Temp file created at: /tmp/tmpabcd1234.txt
📄 Content: Hello from DataDrivenInsights!
⚠️ After exit, /tmp/tmpabcd1234.txt is deleted automatically.

A simple yet powerful tool for safe and clean workflows 🚀

16/10/2025

Promise-based Mutex (Serialize Async Work Safely)
Keep shared state sane. This tiny Promise-based Mutex serializes async work so only one critical section runs at a time—no race conditions, no corrupted caches, no overlapping writes. Great for coordinating writes to localStorage, batching API updates, or protecting in-memory caches in the browser.

Why it’s production-ready
• Clear API: lock() / release(), withLock(fn), tryLock()
• FIFO queueing to prevent starvation
• Idempotent release() (safe in finally)
• Zero dependencies, minimal footprint

Perfect for
• Deduplicating writes (cart updates, settings save)
• Updating singletons (WebSocket state, in-memory cache)
• Preventing overlapping animations/effects that share resources
• Any “only one at a time” workflow in SPA code

Save this helper and make your async code predictable. ⚡

15/10/2025

📊 Company Employee Intranet SQL — Post #17 🔥

Some employees don’t just log in — they log in every single day. These are your power users, and we can detect them by measuring login streaks.

In this post, we:
✅ Used ROW_NUMBER() – DATEDIFF to group consecutive login days
✅ Applied DISTINCT login_date so multiple logins on the same day don’t inflate streaks
✅ Calculated each employee’s longest login streak in the last 90 days
✅ Ordered results so the most consistent users rise to the top

🔎 Insights you now get instantly:

Engineering → 7-day streaks → daily adopters

HR → 5-day streaks → strong engagement

Finance & IT Support → shorter streaks → less consistent use

Takeaway: Login streaks highlight your most committed employees — the true intranet champions.

🔜 Next in SQL Series #18: We’ll track cross-department project collaboration — spotting employees who work across multiple teams.

15/10/2025

🧮 Python Snippet: Resource Usage Limiter

Don’t let a runaway script eat all your CPU or memory ⚠️
This snippet uses Python’s resource module to enforce safe limits on CPU time and memory usage.

✅ Restrict CPU seconds
✅ Limit max memory in MB
✅ Works on Linux & macOS (POSIX systems)
✅ Perfect for workers, sandboxes & background jobs

💡 Example Output:

✅ Limits applied: 2s CPU, 50MB memory
Killed # when CPU/memory exceeds limits

A must-have safeguard for production environments 🚀

15/10/2025

Preload & Decode Image (Abortable + img.decode())
Make image loading feel instant and safe. This tiny preload + decode helper fetches an image, waits for img.decode() so pixels are ready before render (no jank), and supports AbortController for instant cancellation on route changes/unmounts. It also accepts CORS and referrer policy—perfect for galleries, avatars, and hero banners.

Why it’s production-ready
• Uses native Image() + decode() for smooth, flicker-free paint
• Abortable via signal (no zombie requests when users navigate away)
• Clean error paths and teardown (no event leaks)
• Optional crossOrigin, referrerPolicy, and fetchPriority hints

Great for
• Prefetching hero/above-the-fold assets
• Lazy galleries that still need crisp first paint
• Avatars/thumbnails before showing cards/lists
• Any UX where “ready-to-paint” images beat spinners

Save it and ship silky image loads. ⚡

14/10/2025

📊 Company Employee Intranet SQL — Post #16 ⏱️

It’s not just whether employees log in, but how often. Do they come back daily, weekly, or just once a month?
This is where the average login gap comes in — the number of days between consecutive logins.

In this post, we:
✅ Used the LAG() window function to calculate gaps between each login
✅ Applied DATEDIFF to measure gaps in days
✅ Aggregated with AVG to find the average gap per department
✅ Ordered results to see the most (and least) engaged departments

🔎 Insights you now get instantly:

Engineering → avg gap 4.2 days (very engaged)

HR → 5.7 days

Finance → 7.3 days

Sales → 15.0 days (least engaged)

Takeaway: Login gaps reveal how frequently employees return to the intranet — a powerful measure of stickiness.

🔜 Next in SQL Series #17: We’ll spot power users by calculating login streaks (consecutive active days).

14/10/2025

🔒 Python Snippet: File Lock Utility (Production-Ready)

When multiple processes try to write to the same file, things can go wrong ⚠️
This snippet adds a cross-platform file lock to ensure only one process can access a file at a time.

✅ Works on Linux, macOS & Windows
✅ Prevents race conditions in scripts & services
✅ Perfect for cron jobs, workers & log writers

💡 Example Output:

✅ Lock acquired, doing work...
👋 Work finished, lock released.

A must-have for safe and reliable file operations 🚀

14/10/2025

Tiny LRU Cache (O(1) Get/Set, Predictable Eviction)
Need fast caching with predictable memory bounds? Drop in this tiny LRU cache. It keeps the most recently used entries and evicts the oldest automatically when it hits capacity. Perfect for memoizing expensive functions, caching small API responses, or storing pre-rendered templates/images in memory.

Why it’s production-ready
• True O(1) get/set via Map (touch-on-read)
• Deterministic eviction using insertion order (no surprises)
• Strict input validation (max must be a positive integer)
• Clean, minimal API: get, set, has, delete, clear, size, keys()

Great for
• Memoizing computed results (e.g., price/formatting functions)
• Caching recent API lookups or search results
• Reusing image/object URLs or compiled templates
• Any hot-path where speed + bounded memory matters

Save this and ship snappy, memory-safe experiences. ⚡

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