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SQL for Beginners

DEV Community: datascience·E M·about 6 hours ago

#gVMtV251

#devtodatascience #science #devto #dev #null

We'll walk through the operators you actually need as a beginner—comparison, logical, range and list,...

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Adding a Public‑Facing Agenda, Private Chat, and Commission‑Based Payments to a Next.js Marketplace

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Adding a Public‑Facing Agenda, Private Chat, and Commission‑Based Payments to a Next.js Marketplace

DEV Community: productivity·Roberto Luna·1 day ago

#umUngj0S

#devtoproductivity #devto #dev #playadev #buildinpublic

Adding a Public‑Facing Agenda, Private Chat, and Commission‑Based Payments to a Next.js...

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Why Your SQL Query Returns the Wrong Rows (And How WHERE and ORDER BY Fix It)

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Why Your SQL Query Returns the Wrong Rows (And How WHERE and ORDER BY Fix It)

DEV Community: database·Kailas Warade·1 day ago

#cl3AOqV8

#devtodatabase #devto #dev #order #null

A colleague spent twenty minutes on a query once. It was returning the top ten orders correctly. Then...

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window.localStorage can be null, which is how our signup flow handed people an error screen

DEV Community: react·Daniel Pertu·3 days ago

#14Lxkt4K

#devtoreact #devto #dev #theme #null

An Android WebView with DOM storage disabled gives you null, not an empty store, so a theme read threw inside a React effect and the first page after signup became an error boundary.

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Your upsert can preserve an offer that never existed

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Your upsert can preserve an offer that never existed

DEV Community: postgres·Nimbryxo-studio·3 days ago

#1vPqSWn9

#devtopostgresql #devto #dev #const #observation

Build a TypeScript product ingestion job that replaces sparse observations in Postgres and tracks freshness separately.

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Analytics for 10 social networks: polling post stats by age, and why NULL isn't zero

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Analytics for 10 social networks: polling post stats by age, and why NULL isn't zero

DEV Community: go·Nazma Akter·4 days ago

#M60vDBqE

#devtogo #devto #dev #views #null

VeloxonHub Social has an Analytics page that shows views, reactions, comments and shares for...

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Deleting a campaign keeps its conversations, with no campaign, no address and no emails left in them

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Deleting a campaign keeps its conversations, with no campaign, no address and no emails left in them

DEV Community: typescript·Daniel Pertu·4 days ago

#xlSYrs5c

#devtotypescript #devto #dev #campaign #null

One transaction, four statements and a foreign key that sets null. What survives a delete is the part that protects the people we wrote to, and the part that stops a delete minting plan allowance.

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The Kotlin Feature That Changes How You Think About Writing Safer Code

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The Kotlin Feature That Changes How You Think About Writing Safer Code

DEV Community: kotlin·Usba Usman·5 days ago

#XViRRXyQ

#devtokotlin #devto #dev #kotlin #null

Null safety looks like a small language feature, but understanding it can completely change how you...

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Black Friday gaming mouse deals

PCGamer latest ·Dave James·5 days ago

#vxR3Aofp

#pcgamer #widget #ededed #fafafa #section

Black Friday is a-coming and the deals wheels will are already rolling in earnest.

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Security advisory: CVE-2026-8168 Denial-of-service vulnerability in the SVG parser and renderer impacts Qt

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Security advisory: CVE-2026-8168 Denial-of-service vulnerability in the SVG parser and renderer impacts Qt

Planet Qt·5 days ago

#tlMnFObv

#planetqt #qt #vulnerability #security #advisory

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Security advisory: CVE-2026-96432 - Null pointer dereference vulnerability in QNetworkAccessManager impacts Qt

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Security advisory: CVE-2026-96432 - Null pointer dereference vulnerability in QNetworkAccessManager impacts Qt

Planet Qt·5 days ago

#OwF5fsLL

#planetqt #qt #vulnerability #null #pointer

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What's new in pg_clickhouse v0.10.0: Subqueries, TPC-H Speedups, C Driver, and Aggregates | ClickHouse

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What's new in pg_clickhouse v0.10.0: Subqueries, TPC-H Speedups, C Driver, and Aggregates | ClickHouse

Hacker News·3 months ago

#gDv3jUfX

#clickhouse #null #down #query #foreign

Discover what's new in pg_clickhouse v0.10.0: 16 of 22 TPC-H queries now push down in full, plus a rebuilt C driver and broader aggregate support.

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A shell colon does nothing. Use it anyway. | Filip Roséen - refp.se

Hacker News·3 months ago

#XooKo4FD

#refp #shell #posix #unix #command

I've written more shell scripts than I can count, but I still stumble upon tricks that honestly blow my mind far too often than I care to admit. Latest thing that blew my head clean off? The shell colon.

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TesterArmy: Test your app with AI, catch bugs before users doSlackCI/CDGitHubExpoVercelDiscordAPIWebhookSlackCI/CDGitHubExpoVercelDiscordAPIWebhookSlackCI/CDGitHubExpoVercelDiscordAPIWebhookSlackCI/CDGitHubExpoVercelDiscordAPIWebhookGitHubGitHubNovuHireVoiceCodeCraftersCopyfyCodeCraftersNovuHireVoiceCopyfyXLinkedInDiscord

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TesterArmy: Test your app with AI, catch bugs before users doSlackCI/CDGitHubExpoVercelDiscordAPIWebhookSlackCI/CDGitHubExpoVercelDiscordAPIWebhookSlackCI/CDGitHubExpoVercelDiscordAPIWebhookSlackCI/CDGitHubExpoVercelDiscordAPIWebhookGitHubGitHubNovuHireVoiceCodeCraftersCopyfyCodeCraftersNovuHireVoiceCopyfyXLinkedInDiscord

Hacker News·4 months ago

#rP4bnJy1

#tester #ta #demo #stack #how

{"@context":"https://schema.org","@type":"Organization","name":"TesterArmy","url":"https://tester.army/","logo":"https://tester.army/logo.png","description":"QA agents that test your web app like a human.…

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GitHub - Azure/terraform-azure-avm-ptn-bcdr-vm-replication

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GitHub - Azure/terraform-azure-avm-ptn-bcdr-vm-replication

GitHub Public Timeline Feed·Azure·5 months ago

#soAar8E8

#github #optional #string #resource #null

Contribute to Azure/terraform-azure-avm-ptn-bcdr-vm-replication development by creating an account on GitHub.

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GitHub - Azure/terraform-azure-avm-res-purview-account: Terraform Azure Verified Resource Module for avm-res-purview-account

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GitHub - Azure/terraform-azure-avm-res-purview-account: Terraform Azure Verified Resource Module for avm-res-purview-account

GitHub Public Timeline Feed·Azure·5 months ago

#PbLZj3hX

#github #optional #string #resource #null

Terraform Azure Verified Resource Module for avm-res-purview-account - Azure/terraform-azure-avm-res-purview-account

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Part 08: Designing Tables, Data Types and Constraints

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Part 08: Designing Tables, Data Types and Constraints

DEV Community: sql·Mohamed Idris·5 months ago

#H8OmWGf5

#dev #table #database #null #article

Part of the "SQL: Zero to Ninja" series, for junior web devs who want SQL to finally click. Up to...

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$exists and non-sparse indexes in MongoDB and in other DocumentDB

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$exists and non-sparse indexes in MongoDB and in other DocumentDB

DEV Community: mongodb·Franck Pachot·5 months ago

#3CW3wV5V

#dev #index #null #exists #article

In SQL databases, NULL represents an unknown value — not the absence of a value. When a value is...

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📊 Generate Dynamic HTML Reports in Joget with BeanShell

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📊 Generate Dynamic HTML Reports in Joget with BeanShell

DEV Community: java·Explorer·5 months ago

#2EiVB5ET

#dev #reportparam #c_generic_field #getstring #template_placeholder

1. Overview This article shows how to generate a dynamic HTML report in Joget using...

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🔀 Implement Item-Level Task Delegation in Joget with BeanShell

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🔀 Implement Item-Level Task Delegation in Joget with BeanShell

DEV Community: java·Explorer·5 months ago

#iEpuJI2Y

#dev #activityid #string #contains #null

1. Overview This article shows a Joget BeanShell pattern for item-level task delegation....

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Menu

SQL for Beginners

Adding a Public‑Facing Agenda, Private Chat, and Commission‑Based Payments to a Next.js Marketplace

Why Your SQL Query Returns the Wrong Rows (And How WHERE and ORDER BY Fix It)

window.localStorage can be null, which is how our signup flow handed people an error screen

Your upsert can preserve an offer that never existed

Analytics for 10 social networks: polling post stats by age, and why NULL isn't zero

Deleting a campaign keeps its conversations, with no campaign, no address and no emails left in them

The Kotlin Feature That Changes How You Think About Writing Safer Code

Black Friday gaming mouse deals

Security advisory: CVE-2026-8168 Denial-of-service vulnerability in the SVG parser and renderer impacts Qt

Security advisory: CVE-2026-96432 - Null pointer dereference vulnerability in QNetworkAccessManager impacts Qt

What's new in pg_clickhouse v0.10.0: Subqueries, TPC-H Speedups, C Driver, and Aggregates | ClickHouse

A shell colon does nothing. Use it anyway. | Filip Roséen - refp.se

GitHub - Azure/terraform-azure-avm-ptn-bcdr-vm-replication

GitHub - Azure/terraform-azure-avm-res-purview-account: Terraform Azure Verified Resource Module for avm-res-purview-account

Part 08: Designing Tables, Data Types and Constraints

$exists and non-sparse indexes in MongoDB and in other DocumentDB

📊 Generate Dynamic HTML Reports in Joget with BeanShell

🔀 Implement Item-Level Task Delegation in Joget with BeanShell