Telegram RegisterThe public register of Telegram

Channel

SQL и Анализ данных

@databases_tg

On this record: Growth · Engagement · What this channel posts · Reactions · Stars · Posts · Polls · Citations · Handles named that no longer answer · Cite this entry

12,546subscribers

+5 since we began measuring on 7 August 2026

Risers and fallers across the register · movement among entries of 10,000–31,623.

Register entry

Telegram ID-1001654592817
TypeChannel
Username@databases_tg
DescriptionБазы данных и всё, что с ними связано! Сотрудничество: @haarrp РКН № 6766085482
CreatedBetween 1 December 2021 and 31 March 2023— estimated from Telegram’s id allocation, not measured. How this range is calculated.
First recorded7 August 2026
Last confirmed live12 August 2026
Measurements held6
Confirmed unchanged1 time, most recently 12 August 2026
On Telegramt.me/databases_tg

Growth

12,54112,54712,5447 August 2026 — 12,541 subscribers7 August 2026 — 12,541 subscribers9 August 2026 — 12,544 subscribers10 August 2026 — 12,542 subscribers11 August 2026 — 12,547 subscribers12 August 2026 — 12,546 subscribers12,5467 August 202612 August 2026
6 measurements spanning 5 days, net +5. Dots are measurements; the straight line between them is drawn to join them, not to claim we know the path taken in between — snapshots are recorded only when a count changes, so gaps mean “no change observed”, never “interpolated”. The vertical axis spans 12,540–12,548 and does not start at zero.
Measurement log — every subscribers count we have recorded
Measured (UTC)SubscribersChange
12 Aug 2026, 11:0612,546-1
11 Aug 2026, 14:1212,547+5
10 Aug 2026, 17:0512,542-2
9 Aug 2026, 15:1612,544+3
7 Aug 2026, 18:0612,541no change
7 Aug 2026, 17:4712,541first reading

Engagement

19 posts held, back to 29 June 2026the reader has not yet reached the start of this channel’s public history, so older posts may sit further back, unread. Read across 14 pagesof Telegram’s post history, 20 posts per page.

ERR · 30 days
13.8%
avg views ÷ 12,546 subscribers
Avg views / post
1,730
14 posts measured
Reaction rate
0.548%
reactions ÷ views · ER floor
Posts in window
14
of 19 held

ERR is average views per post over the last 30 days divided by subscribers, the definition TGStat uses, so this figure is comparable with the one you will see elsewhere. It falls structurally as a channel grows: a high ERR on a small channel and a low one on a large channel describe reach mathematics, not quality. We publish the figure and the sample it came from and pass no verdict on it.

ER is defined industry-wide as (forwards + reactions + comments) ÷ views— note the denominator is views, not subscribers. Telegram’s public web preview carries views and reactions but not forward or comment counts, so the reaction rate above is the reactions term only and is therefore a floor: the true ER for this channel is higher by an amount we have not measured and will not estimate. It is computed over the 13 of 14 measured posts that carry a reaction reading, and over those same posts' views.

What these figures were computed from
WindowRolling 30 days · latest post in window 11 August 2026
Posts held19 (29 June 202611 August 2026)
Views total24,268
Reactions total127
Forwards / commentsnot exposed by the public surface — not measured, not estimated
Readings taken12 Aug 2026, 12:24 UTC

Views are a single reading per post, taken at the time above. A post published in the last day or two is still accumulating views, which pulls the 30-day average down slightly. That is a property of the standard definition rather than a fault in it, so we keep the definition rather than “correcting” the number into something nobody can reproduce.

Precision. Telegram publishes view counts on its public widget in short form — 8.12K, 3.7M — so any reading at or above 1,000 reaches us rounded to three significant figures, and only counts below 1,000 are exact. Averages and rates derived from them are shown to the same precision rather than to the unit: a figure like 3,701,250 would assert digits nobody measured.

Reaction counts are published per emoji and rounded the same way, so a total below 1,000 is exact and a larger one is a sum that may carry a rounded component from each emoji above 1,000. Because it is a sum, it does not look rounded — read a large reaction total as three significant figures per contributing emoji rather than as the figure it prints.

What this channel posts

Photos
733
Videos
86
Links
746

Lifetime counters from Telegram’s own channel header, read 12 August 2026 — not the date at the top of this page, which is when the subscriber count was last read. Below Telegram’s rounding threshold, so these counts are exact.

Video runtime
33s
Average length
33s

Measured directly from 1 video with a duration reading, out of the posts we hold for this channel — not this channel’s whole posting history, only the sample this register has actually read. An exact reading to the second, taken from the post itself rather than from Telegram’s own rounded chrome, so it carries no mark.

Reaction mix

158 reactions across 18 posts, in 13 distinct kinds. The most used accounts for 39.2% of them.

Every reaction kind recorded on the sample, most used first
ReactionCountShareShare, drawn
👍6239.2%
5534.8%
🔥138.23%
🥰95.70%
😁74.43%
💯31.90%
🤔31.90%
❤‍🔥10.633%
🆒10.633%
💊10.633%
😎10.633%
😨10.633%
🤨10.633%

No sentiment is inferred, and none should be read in. This table is ordered by count and by nothing else. Emoji do not carry stable meaning across languages or communities — 🙏 is thanks in one channel and mourning in another — so we publish which ones were pressed and how often, and pass no judgement on what an audience meant by them.

Precision. Telegram publishes reaction counts per emoji and short-forms each one — 4.34K, 1.2M — so any single kind at or above 1,000 reaches us at three significant figures, and only counts below 1,000 are exact. The shares above are ratios of those figures and carry the same error. This is also why the total here can differ slightly from a reaction total printed elsewhere on the page: both are sums of the same rounded parts, taken over samples with different edges.

Coverage. Reactions were read on 18 of the 19 sampled posts in this sample. Summed by Telegram’s own count on each post — not by adding up the per-emoji breakdown above — those same posts carry 158reactions in total: the kind of figure the paragraph above means by “a reaction total printed elsewhere on the page”.

Measured over the 19 most recent posts we hold, published 29 June 2026 to 11 August 2026, using the newest reading held for each. Telegram Stars are excluded: they are a payment, not a reaction, and they have their own section.

Telegram Stars

Stars received
1
across the posts below
Posts paid on
1
of 19 we hold a reading for · 5%
Most on one post
1
single highest reading

A paid reaction is a reader spending Telegram Stars — bought with money — on a post by @databases_tg. Telegram publishes the count on the public post preview alongside ordinary reactions, and this register reads it there. It is the only figure on this site that measures money moving rather than attention.

Stars are not reactions, and the two are never added. They are rendered in the same strip on Telegram and counted in the same shape, but one is a tap and the other is a purchase. The reaction totals and the engagement rate elsewhere on this page exclude every figure in this section, and no rate here is computed against a reaction count.

This is not revenue, and we publish no currency figure. What a Star costs a reader and what it pays a channel are different numbers, Telegram takes a share we cannot observe, and the terms have changed. Converting a Star count into money would be an estimate dressed as a measurement, so the count is where we stop.

Counted over the 19 most recent posts we hold for this entry, published 29 June 2026 to 11 August 2026. Star counts above 1,000 reach us in Telegram’s short form and carry the same three-significant-figure rounding as everything else on this page.

Recent posts

11 Aug 2026, 09:08 UTC858 views4 reactionsread 12 August 2026

🛡️ Uber открыла ADR - систему защиты для корпоративных AI-агентов. ADR расшифровывается как Agentic AI Detection and Response. Проект уже используется внутри Uber и предназначен для наблюдаемости, тестирования безопасности и обнаружения угроз в агентных системах. Что умеет ADR: - собирает телеметрию от AI coding agents; - отслеживает действия агентов и вызовы инструментов; - помогает находить подозрительное поведе

3👍1

10 Aug 2026, 09:37 UTC≈1,100 viewsread 12 August 2026
Poll

Для чего используется команда TRUNCATE вместо DELETE для очистки большой таблицы?

  1. Для удаления только части строк13%
  2. Для мгновенного освобождения места без сканирования строк65%
  3. Для сохранения триггеров уровня строк4%
  4. Для удаления таблицы из базы19%

Shares as published, totalling 101%. No per-option vote count is published by Telegram, so none is shown.

10 Aug 2026, 08:37 UTC≈1,100 views4 reactionsread 12 August 2026
Photo

🎓 Если вы планируете поступать в ШАД в 2027 году, сейчас можно присоединиться к текущему потоку ShadHelper. Мы больше 6 лет готовим к ШАД и ML-магистратурам. Среди преподавателей - специалисты из Сбера, МГУ и МФТИ; 120+ выпускников уже поступили в ШАД и ML-магистратуры. Курс рассчитан на системную подготовку за год: математика, теория вероятностей, дискретная математика и алгоритмы, регулярная практика, домашние за

3😁1

9 Aug 2026, 10:13 UTC≈1,080 views16 reactionsread 12 August 2026
Photo

⚡️ QueryTuner - open-source инструмент, который разбирает SQL-запрос и показывает, почему он может тормозить. Подключаться к базе вообще не обязательно. Можно просто вставить SQL и получить диагностику. Поддерживаются сразу 5 диалектов: - PostgreSQL - MySQL - Oracle - SQL Server - SQLite Внутри два уровня анализа. 1. Детерминированный heuristic engine Он мгновенно ищет типичные anti-patterns: - SELECT * - функ

👍10🔥32💊1

7 Aug 2026, 10:12 UTC≈1,240 views17 reactionsread 12 August 2026

💡 SQL-трюк: сравнивайте `NULL` без костылей В PostgreSQL обычное сравнение может неожиданно сломать условие: SELECT NULL = NULL; Результат: NULL Потому что NULL означает «неизвестное значение», а не конкретное значение. Из-за этого часто пишут громоздкие условия: WHERE a = b OR (a IS NULL AND b IS NULL) Но есть оператор, о котором многие забывают: a IS NOT DISTINCT FROM b Он работает как NULL-saf

10👍5🔥2

3 Aug 2026, 12:01 UTC≈1,890 views10 reactionsread 12 August 2026
Photo

Единственные соседние степени во всей математике Числа 8 и 9 выглядят обычно, но их соседство уникально: 2³ = 8 3² = 9 Это единственная пара степеней натуральных чисел больше 1, которые отличаются ровно на единицу. Иными словами, уравнение xᵖ - yᑫ = 1 при x, y, p, q > 1 имеет только одно решение: 3² - 2³ = 1 Эжен Каталан сформулировал эту гипотезу в 1844 году. Доказать её смогли лишь спустя более 150 ле

6👍4

31 Jul 2026, 12:52 UTC≈2,090 views22 reactionsread 12 August 2026

⚡️ Программистов пытаются отменить уже больше 60 лет COBOL создавали так, чтобы код могли писать менеджеры. SQL называли «структурированным английским». Затем появились 4GL, UML, low-code и no-code. Каждый раз индустрия обещала программирование без программистов — и каждый раз получала новые специализации. Теперь ту же роль играют LLM и вайбкодинг. Проблема упирается в естественный язык. Фраза «удали файлы старше

👍201🔥1

24 Jul 2026, 10:56 UTC≈2,770 views17 reactionsread 12 August 2026
Forwarded from @vistehnoPhoto

📌 Oracle сократила 21 000 сотрудников и теперь может получить счёт на $7 млрд из-за ИИ За финансовый 2026 год штат Oracle сократился примерно на 21 000 человек, или на 13%. Компания прямо указала, что внедрение ИИ стало одним из факторов сокращений. Параллельно Oracle строит гигантскую ИИ-инфраструктуру для OpenAI. Один из проектов - дата-центр в Висконсине мощностью около 1 ГВт, связанный с контрактом OpenAI и Or

🥰93👍2💯1😁1🆒1

23 Jul 2026, 07:58 UTC≈2,270 views5 reactions1 Starread 12 August 2026
Forwarded from @ai_machinelearning_big_dataPhoto

📌Cursor переписал SQLite на Rust по документации Anysphere опубликовала отчёт об эксперименте, в котором группе агентов поручили реализовать на языке Rust всё содержимое 835-страничного руководства SQLite. Исходный код СУБД, её готовые сборки, тестовые наборы и доступ в интернет агентам, по словам Cursor, были закрыты. 🟡Конфигураций было четыре В двух одна и та же модель и планировала, и выполняла работу - это бы

👍2😁2💯1

22 Jul 2026, 12:11 UTC≈1,990 views6 reactionsread 12 August 2026
Video

GeoSQL превращает Claude, Codex и Copilot в агента для геоаналитики Инструмент подключается к PostGIS, BigQuery, Snowflake и Wherobots. Агент сам изучает схему данных, пишет spatial SQL, проверяет стоимость запроса и валидирует геометрию. Результат можно вывести на карту через Dekart. Модель анализирует визуализацию и исправляет ошибки с полигонами, пересечениями и системами координат. По бенчмарку авторов, map-in-

3🔥2😎1

18 Jul 2026, 16:02 UTC≈2,280 views4 reactionsread 12 August 2026
Poll

Какой тип данных в PostgreSQL лучше всего подходит для хранения денежных сумм с фиксированной точностью без ошибок округления?

  1. REAL14%
  2. DOUBLE PRECISION32%
  3. NUMERIC37%
  4. FLOAT17%

Shares as published. No per-option vote count is published by Telegram, so none is shown.

😁21😨1

18 Jul 2026, 14:02 UTC≈1,910 views8 reactionsread 12 August 2026
Photo

🔥 Хочешь быстрее расти в IT? Хватит учиться в одиночку В IT прокачивается тот, кто каждый день видит сильные идеи, новые инструменты, реальные задачи, вакансии и разборы. Окружение решает больше, чем кажется. Собрал папки и каналы, где можно быстрее влиться в нужное направление, следить за трендами и не вариться в своём пузыре. AI: t.me/ai_machinelearning_big_data Python: t.me/pythonl Linux: t.me/linuxacademiya Х

7❤‍🔥1

Showing the 12 most recent of 19 posts we hold for @databases_tg. View and reaction counts are the latest single reading for each post, not a live figure, and a recent post is still accumulating both. A view count marked was rounded by Telegram before we ever saw it — t.me prints views in full below 1,000 and to three significant figures above, so ≈1,200,000 means somewhere between 1,150,000 and 1,249,999. Unmarked counts are exact. Text is reproduced from the public post preview and truncated for length.

Stars beside a post are paid reactions — Telegram Stars, bought with money and spent on that post. They are a different unit from reactions and are never added to them, here or anywhere else on this page.

Polls

The 3 polls we hold for this entry, as Telegram rendered them when we read the post. A poll’s figures keep moving after that, so each one is dated.

10 Aug 2026, 09:37 UTCAnonymous Quiz320 voters

Для чего используется команда TRUNCATE вместо DELETE для очистки большой таблицы?

  1. Для удаления только части строк13%
  2. Для мгновенного освобождения места без сканирования строк65%
  3. Для сохранения триггеров уровня строк4%
  4. Для удаления таблицы из базы19%

Shares as published, totalling 101%. No per-option vote count is published by Telegram, so none is shown.

18 Jul 2026, 16:02 UTCAnonymous Quiz491 voters

Какой тип данных в PostgreSQL лучше всего подходит для хранения денежных сумм с фиксированной точностью без ошибок округления?

  1. REAL14%
  2. DOUBLE PRECISION32%
  3. NUMERIC37%
  4. FLOAT17%

Shares as published. No per-option vote count is published by Telegram, so none is shown.

29 Jun 2026, 16:10 UTCAnonymous Quiz379 voters

Как называется специальная схема в PostgreSQL, где хранятся временные таблицы, созданные в рамках текущей сессии?

  1. temp_schema44%
  2. pg_temp_NNN28%
  3. public6%
  4. pg_catalog22%

Shares as published. No per-option vote count is published by Telegram, so none is shown.

Percentages only — there are no per-option vote counts here, because Telegram publishes none.The public post preview gives each option’s share and a single voter total, and nothing else. Multiplying one by the other would produce a per-option tally that looks measured and is not: the shares are rounded to whole numbers before we ever see them. We print what was published and leave the column that does not exist empty.

The shares need not add up to 100.Rounding alone puts many polls at 99 or 101. A poll that allows more than one answer per voter runs well past 100 by design, and several here do. The bars are drawn against a fixed 100% track at each option’s own percentage rather than normalised to the total, so a poll that exceeds it shows that it does instead of being quietly rescaled.

Read from the 19 most recent posts we hold, published 29 June 2026 to 11 August 2026. Telegram labels each poll by kind — an anonymous poll, a quiz, a closed set of final results — and that label is reproduced rather than paraphrased.

Citation-graph rank

Citation-graph rank — 803,058 of 1,151,006entries in the measured graph. A weighted position computed from the forward and mention edges below — republished posts weigh more than named mentions — and recomputed periodically, over the whole graph. Published only as this ordinal position, never as a score: a position is a fact, and a score printed beside one channel’s name would read as a verdict this register does not make. The two counts beneath stay separate for the same reason mentions are never summed with forwards anywhere else on this page — a named-by count costs nothing to manufacture. The top 100 by this measure, or how it is computed.

Forward network

Republished by

Channels on the register that have forwarded this channel's posts into their own feed.

Built only from forwarded posts we have actually read, on both sides. Coverage is early and deliberately incomplete: a missing link means we have not read the post that would prove it, never that the relationship does not exist. Counts are distinct forwarded posts observed, so they only ever go up as we read more.

Mentions

A mention is a weaker signal than a forward and is counted separately for that reason — naming a channel is not republishing it, and a handle in a post body is easy to place deliberately. The post counts beside each row below are distinct posts in which the handle appeared, from posts we have read on both sides — the “Named by N registered channels” figure above is a different count, of distinct NAMING CHANNELS rather than posts, and is not the sum of the rows under it.

Cite this entry

A live page changes as we take new readings, so a citation should name the measurement it is based on, not just the URL. The line below cites the subscriber count as measured 12 August 2026 — this entry's latest reading, not the date you are reading this.

“SQL и Анализ данных” (@databases_tg), 12,546 subscribers as measured 12 August 2026. Telegram Register, tgregister.com/channel/databases_tg.

Full measurement history, CC BY 4.0. Every reading this register holds for this entry, not just the latest one, as a dated, downloadable record: CSV · JSON. Free to use with attribution to tgregister.com. Each file carries its own generation timestamp, which is the figure to cite for exactly when the data was retrieved.