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Public channel ID 73669586065448

Упражнения SQL (sql-ex.ru)

Сайт Упражнения SQL (sql-ex.ru) посвящен изучению языка, с помощью которого осуществляется взаимодействие с реляционными (и не только) СУБД. Суть обучения состоит в выполнении заданий на написание запросов к учебным базам данных; при этом система контролирует правильность выполнения заданий.

IT and programming Linguistics
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№ 474
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Channel analytics

Dashboard

19 October — 25 October 2026

30 days 90 days Year All time Custom dates

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SubscribersHow many subscribers the channel has now. The wave shows subscribers at each point of the period. The change is against the start of the period. 62 1.6 % +1 for the period
ViewsHow many views the posts published in the period have now. These are not views per day: MAX does not report how many views there were yesterday. 64 21.8 % was 83
ReactionsHow many reactions the posts published in the period have. 0 was 0
MentionsHow many times other channels mentioned the channel: links and reposts, excluding advertising posts. The bigger the circle, the more mentions at that point of the period. with a subscription
RepostsHow many times other channels reposted this channel's posts (excluding advertising posts). Reposts are also counted as mentions. after signing in
Average post reachHow many views one post gets on average. Only posts older than two days are counted: views of fresh posts are still growing. Points with fresh posts are dashed with hollow dots: the reach of all posts right now, it will still grow. 34 18.1 % was 42
ERRWhat share of subscribers sees an average post: average reach ÷ subscribers × 100 %. The line shows ERR at each point of the period, the dashed line — ERR of the previous period of the same length. Points with posts younger than two days are hollow dots on the dashed end of the line. 54.8 % 13.2 pp dashed line — was 68.0 %
Engagement ERHow often readers react to posts: reactions ÷ views × 100 %. The tick on the bar is the previous period. — reactions per 100 views
Posts per dayHow many posts are published per day on average. Each cell is a point of the period: the darker, the more posts per day. 0.4 52.0 % was 0.3
Ad shareWhat share of the period's posts looks like advertising: erid labeling, ad links and other signs. The scale shows the ad load by the quality index thresholds: up to 10 % — low, up to 25 % — moderate, up to 50 % — high, above — very high. A growing share is marked red. with a subscription
TrendTop — subscribers at the end of each point of the period; bottom — growth per point: green means more subscribers, red means fewer. Above the growth chart — the biggest gain and the biggest loss. MAX does not report how many people subscribed and unsubscribed separately.

Audience growth

+1subscribers in the period

+1 biggest gain · 24 Oct 2026

Channel scoreA channel score from 0 to 100 made of five parts: audience, growth integrity, ad load, trust and calculation reliability. Each bar shows how many points the part earned out of its maximum. The index is recalculated every night; channels are compared with similar ones of the same category and size.

Quality index

How it is calculated

The quality index has not been calculated yet. It appears for channels with at least 500 subscribers that post at least once a week, after a week of tracking.

ReachHow many views the posts published at each point of the period have now (not views per day). The record is labeled; the point with today is paler — the day is not over yet. Average post reach — posts older than two days.

Views and reach

64views in the period 21.8 %

Average post reach — 34 views (posts older than two days).

CitationsThe citation index (CI) shows how often and by which channels this channel is mentioned over the last 30 days, excluding advertising posts. The level is its place among similar channels. The line shows CI at each point of the period (for a week or month — the average over its days).

Citation index

How it is calculated

The citation index has not been calculated yet: it will appear after the nightly calculation once other channels mention the channel.

RhythmHow many posts are published on average in each hour of each weekday, Moscow time: the darker the cell, the more posts. “Best time” — the hours when posts older than two days have the highest average reach.

When and how much it posts

Available with a subscription
FormatsWhat the feed is made of. Each post has one format, by priority: repost, video, photo, link, text. The bar and percentages show the share of posts of each format; on the right — average reach of one post of the format (posts older than two days), the small bar compares it with the most viewed format.

Post formats

Available after signing in
PostsEach dot is a post in the period: horizontally — publication date, vertically — views, dot size — reactions, color — format. This shows hits, flops and how reach changes. For large channels, the 100 most viewed posts and an even sample of the rest are shown — no more than 1,500 dots.

Every post is a dot

Higher means more views, bigger means more reactions. Click a dot to open the post.

Available after signing in
SummaryTotals for the selected period: how many posts were published, how many views and reactions they have now and the average post reach. Views are the current views of posts published on those days, not views per day. The change is against the same span before the period, if statistics cover it.

Period totals

Click a metric to see it across the period below

Available after signing in
AdsWhat share of the period's posts looks like advertising: erid labeling, ad links and other signs. The detector is cautious, so the real share is usually higher. The scale shows the ad load by the quality index thresholds. Below — the average reach of an ad post and a regular post, and who the channel advertises (sites that ad links lead to).

Ads in the channel

More
Available with a subscription
What worksPosts of the period with the most views. The bar shows views relative to first place. The preview is the post's image; for a post without an image — the channel avatar. Views are the post's current count.

Top posts

By views for the period

All posts
Available after signing in
RhythmHow many posts were published each day of the period (pale bars) and the 7-day average (line): you can see whether the channel is speeding up or slowing down. Today is not over yet, so its average is calculated up to yesterday.

Posts by day

Pale bars are days, the line is the 7-day average: you can see whether the channel is speeding up or slowing down

Posts per day 7-day average

Data updated at 21:44 Moscow time. Views are the current counts of posts published on those days; average reach counts posts older than two days. How the quality index is calculated

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