SQL. Сборник рецептов Авторы: Энтони Молинаро, Роберт де Грааф Год издания: 2022 #db #sql #ru Скачать книгу

Channel
TechSkills - книги по программированию
@techskill
On this record: Topic · Growth · Engagement · What this channel posts · Reactions · Advertising · Posts · Citations · Telegram's recommendations · Cite this entry
14,171subscribers
-199 since we began measuring on 6 August 2026
Risers and fallers across the register · movement among entries of 10,000–31,623.
Register entry
| Telegram ID | -1001172104670 |
|---|---|
| Type | Channel |
| Username | @techskill |
| Description | Обучающие книги по программированию. По вопросам рекламы: @anothertechrock Регистрация в перечне РКН: https://clck.ru/3R3tfi |
| Created | Between 1 March 2018 and 31 July 2021 — estimated from Telegram’s id allocation, not measured. How this range is calculated. |
| First recorded | 6 August 2026 |
| Last confirmed live | 9 November 2026 |
| Measurements held | 57 |
| Confirmed unchanged | 2 times, most recently 9 November 2026 |
| On Telegram | t.me/techskill |
Topic
Software piracy — a classification, not a measurement. An on-box language model (Qwen3.6-35B-A3B-FP8, prompt version 1) read this channel’s own recent posts on 10 September 2026 and assigned it the closest of 31 fixed categories, at 83% confidence. This is a model’s judgement about what the channel is likely to be about, not a fact this register measured the way a subscriber count or a view count is measured — it can be revised on a later pass, and it carries no weight anywhere else on this page. How this classification works, and the other topics.
Growth
| Measured (UTC) | Subscribers | Change |
|---|---|---|
| 8 Nov 2026, 07:54 | 14,171 | -2 |
| 7 Nov 2026, 04:01 | 14,173 | -2 |
| 6 Nov 2026, 00:50 | 14,175 | -1 |
| 5 Nov 2026, 01:59 | 14,176 | -1 |
| 3 Nov 2026, 23:09 | 14,177 | -6 |
| 3 Nov 2026, 01:37 | 14,183 | +2 |
| 1 Nov 2026, 22:40 | 14,181 | -6 |
| 31 Oct 2026, 19:31 | 14,187 | -2 |
| 30 Oct 2026, 18:01 | 14,189 | -3 |
| 27 Oct 2026, 22:48 | 14,192 | -2 |
| 26 Oct 2026, 19:10 | 14,194 | -4 |
| 25 Oct 2026, 18:59 | 14,198 | -1 |
| 24 Oct 2026, 19:11 | 14,199 | -3 |
| 23 Oct 2026, 20:34 | 14,202 | -4 |
| 22 Oct 2026, 21:39 | 14,206 | -7 |
| 21 Oct 2026, 17:41 | 14,213 | -1 |
| 20 Oct 2026, 14:41 | 14,214 | -6 |
| 18 Oct 2026, 08:36 | 14,220 | -2 |
| 17 Oct 2026, 05:17 | 14,222 | -2 |
| 16 Oct 2026, 08:45 | 14,224 | first reading |
Engagement
37 posts held, back to 30 January 2026 — the reader has not yet reached the start of this channel’s public history, so older posts may sit further back, unread. Read across 68 pages of Telegram’s post history, 20 posts per page.
- ERR · 30 days
- 8.99%
- avg views ÷ 14,171 subscribers
- Avg views / post
- 1,270
- 6 posts measured
- Reaction rate
- 0.433%
- reactions ÷ views · ER floor
- Posts in window
- 6
- of 37 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 2 of 6 measured posts that carry a reaction reading, and over those same posts' views.
| Window | Rolling 30 days · latest post in window 22 October 2026 |
|---|---|
| Posts held | 37 (30 January 2026 – 22 October 2026) |
| Views total | 7,640 |
| Reactions total | 11 |
| Forwards / comments | not exposed by the public surface — not measured, not estimated |
| Readings taken | 11 Nov 2026, 07:25 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
- 129
- Links
- 148
Lifetime counters from Telegram’s own channel header, read 11 November 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.
Reaction mix
62 reactions across 19 posts, in 13 distinct kinds. The most used accounts for 32.3% of them.
| Reaction | Count | Share | Share, drawn |
|---|---|---|---|
| ❤ | 20 | 32.3% | |
| 👍 | 11 | 17.7% | |
| 🔥 | 9 | 14.5% | |
| 😁 | 6 | 9.68% | |
| 👏 | 5 | 8.06% | |
| 🎉 | 2 | 3.23% | |
| 🙏 | 2 | 3.23% | |
| 🤔 | 2 | 3.23% | |
| ⚡ | 1 | 1.61% | |
| ❤🔥 | 1 | 1.61% | |
| 👾 | 1 | 1.61% | |
| 💩 | 1 | 1.61% | |
| 🤩 | 1 | 1.61% |
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 21 of the 37 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 64 reactions in total: the kind of figure the paragraph above means by “a reaction total printed elsewhere on the page”.
Measured over the 37 most recent posts we hold, published 30 January 2026 to 22 October 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.
Advertising
- Ad load
- 2.70%
- 1 of 37 posts carry an ad marker
- Regulatory tokens
- 1
- posts carrying an erid · 1 distinct token
- Median views · ads
- 1,240
- over 1 measured post
- Median views · rest
- 2,280
- over 35 measured posts
An ad marker, not a judgement about a post. A post is counted here because it carries one of two explicit markings: an erid token, which Russian law has required on paid placements since 2022 and which is issued against a specific advertising contract, or a #реклама / #ad hashtag in the body, which is the channel declaring it itself. The first is documentary; the second is a self-declaration and is weaker. No classifier reads the text and decides — nothing on this site guesses that a post is an advertisement.
This is a floor, and it can only ever be a floor. A channel that runs paid placements without marking them produces no marker for us to count, and an unmarked ad is indistinguishable from an ordinary post on the public surface. The ad load above therefore means “the share of posts that declared themselves”, never “the share of posts that were paid for”. A low figure is not evidence of a channel that runs few ads.
Both figures are medians, and no ratio between them is published. Each is a view reading that actually occurred on a post, picked by percentile_disc rather than averaged, so one viral post cannot move it and no interpolated value is invented between two readings. The sample on one side is under five posts, which is too thin to compare. The two figures are shown side by side with the count behind each, and deliberately not divided into a headline like “ads get x% fewer views” — an arithmetic that is easy to print and, at this sample size, means nothing.
| erid | Posts | First seen | Last seen |
|---|---|---|---|
| 2Vtzqx8GVu7 | 1 | 21 October 2026 | 21 October 2026 |
A token repeated across several posts is one advertising contract placed more than once, which is what the identifier is for. The strings are reproduced exactly as they appeared in the post or in its click-through URL and are not validated against any registry — we record the marker a channel published, and whether it resolves to a real contract is a question for the register that issued it.
Measured over the 37 most recent posts we hold, published 30 January 2026 to 22 October 2026. Views are the latest single reading held for each post, and any reading at or above 1,000 is rounded by Telegram to three significant figures.
Recent posts
Telegram’s own ‘edited’ marker: 0 of 6 posts held from the last 30 days (0%) carried it when this register last read them. The marker says a post was changed after publishing, not what it said before — this register holds the earlier wording only where an edit fell between two of its own reads (see the edit ledger and how it is measured).
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Showing the 12 most recent of 37 posts we hold for @techskill. 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.
Mentions
Names
Channels on the register whose handles appear in this channel's posts.
@readandget · 7,6228 postsАрхив книг
@cocosnull · 6,7604 postsЧто по книжкам?
@skachac · 6,6884 postsКниги по программированию
@knigiet · 4,3553 postsКниги для айтишников
@progsbook · 5,0723 postsБазы данных. Книги по программированию
@dbbooks · 16,7982 postsPython Books. Книги по питону
@pythonbooks · 38,3312 postsPython книги на русском
@pythonbooksru · 24,4182 postsC# вакансии
@rabotacschap · 3,2852 postsJava книги по программированию
@booksjava · 11,6701 postFrontEnd книги для программистов
@frontendbook · 14,6531 postGolang Книжная полка
@golangsbook · 7,1381 postJava Вакансии
@javaoffers · 2,5021 postQA Вакансии. Работа для тестировщиков. QaRocks
@jobforqa · 15,3601 postВакансии Golang
@jobgolang · 3,9251 postМашинное обучение. Книги по программированию
@maschinelearning · 10,8491 postPHP Books
@phpbook · 4,1881 postPM Вакансии
@projectmanagersjob · 8571 postВакансии Python
@pypijob · 9,1841 postРабота для тестировщика.
@qajobsoffers · 10,4531 postFrontEnd Работа
@rabotafrontend · 3,6231 postPHP вакансии
@rabotaphp · 2,5581 postIT Релокация
@relocatesme · 7,0221 postTalanto. Поиск работы в IT
@talantojob · 1,7471 post
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.
Appears in Telegram’s recommendations for other channels
The reverse of the list above, and a different kind of signal. This does not require this channel to have ever been asked about directly — each row below is a channel we DID ask Telegram about, whose Telegram-generated list happened to include this one. A channel can appear here with an empty list above it, because being named by someone else’s query is independent of having been queried itself.
@pythonbooks · 38,331
Telegram ranks this channel #5 of 65 here — alongside 64 others — read 17 September 2026
@profi_kursi_gaidi · 93,001
Telegram ranks this channel #21 of 77 here — alongside 76 others — read 16 August 2026
@bzd_channel · 36,213
Telegram ranks this channel #28 of 57 here — alongside 56 others — read 1 September 2026
@nasche_zdor · 18,666
Telegram ranks this channel #36 of 76 here — alongside 75 others — read 5 October 2026
@pythonist_ru · 23,873
Telegram ranks this channel #49 of 82 here — alongside 81 others — read 17 September 2026
@nuancesprog · 55,956
Telegram ranks this channel #50 of 84 here — alongside 83 others — read 23 August 2026
This channel appears in 6 seed channels' Telegram-generated recommendation lists in total. Each is Telegram’s list for THAT channel, not this one — see how this is measured.
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 8 November 2026 — this entry's latest reading, not the date you are reading this.
“TechSkills - книги по программированию” (@techskill), 14,171 subscribers as measured 8 November 2026. Telegram Register, tgregister.com/channel/techskill.
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.