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Kafka RabbitMQ Courses 2026: Yandex vs Slerm

https://sudonull.com/kafka-rabbitmq-courses-2026-yandex-vs-slerm

Comparison of Yandex Praktikum and Slerm courses on Kafka, RabbitMQ. KRaft, highload, Docker stands, reviews. Choose format for middle/senior devs and start learning.

Coexistence of legacy code in high-load systems

https://sudonull.com/coexistence-of-legacy-code-in-high-load-systems

Learn why removing legacy code is risky and how to apply feature toggles for safe coexistence in Spring Boot. Strategies for middle/senior dev without refactoring risks. Practical examples.

Fastify Optimization: Bloom Filters and Scalable Backends

https://sudonull.com/fastify-optimization-bloom-filters-and-scalable-backends

Explore practical solutions for creating a high-load backend on Fastify: custom IDs, Bloom filters for users and images, loginless authorization, asynchronous DB writes, API protection, and TypeScript typing.

QR Ticket Validation Design for Cinemas

https://sudonull.com/qr-ticket-validation-design-for-cinemas

Breakdown of System Design for QR Ticket Validation: offline signature, idempotency, atomic updates. Solving timeouts and HoL blocking for high-load. Practical SQL examples.

Kafka Safety Window: retention monitoring

https://sudonull.com/kafka-safety-window-retention-monitoring

Learn how to prevent data loss in Kafka due to retention.bytes. Implement Data Safety Window in Grafana with PromQL. Tuning case for high-load topics — instructions for Platform Engineers.

From the web

QUERY function - Google Docs Editors Help

https://support.google.com/docs/answer/3093343?hl=en

QUERY function Runs a Google Visualization API Query Language query across data. Sample Usage QUERY (A2:E6,"select avg (A) pivot B") QUERY (A2:E6,F2,FALSE) Syntax QUERY (data, query, [headers]) data - The range of cells to perform the query on. Each column of data can only hold boolean, numeric (including date/time types) or string values.

QUERY - Cправка - Редакторы Google Документов

https://support.google.com/docs/answer/3093343?hl=ru

Выполняет запросы на базе языка запросов API визуализации Google. Пример использования QUERY (A2:E6; "select avg (A) pivot B") QUERY (A2:E6; F2; ЛОЖЬ) Синтаксис QUERY (данные; запрос; [заголовки])

QUERY - เครื่องมือแก้ไข Google เอกสาร ความช่วยเหลือ

https://support.google.com/docs/answer/3093343?hl=th

เรียกใช้การค้นหาของ Google Visualization API Query Language จากข้อมูลทั้งหมด ตัวอย่างการใช้งาน QUERY (A2:E6,"select avg (A) pivot B") QUERY (A2:E6,F2,FALSE) รูปแบบคำสั่ง QUERY (data, query, [headers]

QUERY 関数 - Google ドキュメントエディタヘルプ

https://support.google.com/docs/answer/3093343?hl=ja

QUERY 関数 Google Visualization API のクエリ言語を使用して、データ全体に対するクエリを実行します。使用例 QUERY (A2:E6,"select avg (A) pivot B") QUERY (A2:E6,F2,FALSE) 構文 QUERY (データ, クエリ, [見出し]) データ - クエリを実行するセルの範囲です。

QUERY - Ajuda do Editores de arquivos Google

https://support.google.com/docs/answer/3093343?hl=pt-BR

QUERY Executa uma consulta de dados com a linguagem de consultas da API de visualização do Google. Uso de exemplo QUERY (A2:E6;"select avg (A) pivot B") QUERY (A2:E6;F2;FALSO) Sintaxe QUERY (dados; consulta; [cabecalhos]) dados - O intervalo de células sobre o qual fazer a consulta.

Función QUERY - Ayuda de Editores de Documentos de Google

https://support.google.com/docs/answer/3093343?hl=es-419

Función QUERY Ejecuta una consulta sobre los datos con el lenguaje de consultas de la API de visualización de Google. Ejemplo de uso QUERY (A2:E6,"select avg (A) pivot B") QUERY (A2:E6,F2,FALSO) Sintaxis QUERY (datos, consulta, [encabezados]) datos: Rango de celdas en el que se hará la consulta.

Hàm QUERY - Trình chỉnh sửa Google Tài liệu Trợ giúp

https://support.google.com/docs/answer/3093343?hl=vi

Hàm QUERY Chạy truy vấn bằng Ngôn ngữ truy vấn của API Google Visualization trên nhiều dữ liệu. Ví dụ mẫu QUERY (A2:E6;"select avg (A) pivot B") QUERY (A2:E6;F2;FALSE) Cú pháp QUERY (dữ_liệu; truy_vấn; [tiêu_đề]) dữ_liệu – Dải ô thực hiện truy vấn.

Get started with BigQuery data in Google Sheets

https://support.google.com/docs/answer/9702507?hl=en

You can access, analyze, visualize, and share billions of rows of data from your spreadsheet with Connected Sheets, the new BigQuery data connector. You can also use Connected Sheets to: &nbsp

Google Sheets QUERY - how to use AND and OR at the same time

https://support.google.com/docs/thread/132394436/google-sheets-query-how-to-use-and-and-or-at-the-same-time?hl=en

Oct 25, 2021 · Google Sheets QUERY - how to use AND and OR at the same time Hi I'm struggling with Query function that will display all Cells containing certain value and then use several other parameters with OR.

[GA4] Google Analytics 4-property sample dataset for BigQuery

https://support.google.com/analytics/answer/10937659?hl=en

See this article on our developer site. [GA4] Google Analytics 4-property sample dataset for BigQuery