ClickHouse/docs/en
Azat Khuzhin b2e2322895 Add system.errors table
Contains error codes with number of times they have been triggered.

Columns:

-   `name` ([String](../../sql-reference/data-types/string.md)) — name of the error (`errorCodeToName`).
-   `code` ([Int32](../../sql-reference/data-types/int-uint.md)) — code number of the error.
-   `value` ([UInt64](../../sql-reference/data-types/int-uint.md)) - number of times this error has been happened.

**Example**

``` sql
SELECT *
FROM system.errors
WHERE value > 0
ORDER BY code ASC
LIMIT 1

┌─name─────────────┬─code─┬─value─┐
│ CANNOT_OPEN_FILE │   76 │     1 │
└──────────────────┴──────┴───────┘
2020-10-29 10:55:38 +03:00
..
commercial Update cloud.md 2020-10-25 22:23:54 -07:00
development Update tests.md 2020-10-23 17:39:09 +03:00
engines Remove redundant, add virt col 2020-10-27 20:34:31 +00:00
faq DOCSUP-3200: Edit and translate to Russian (#16204) 2020-10-26 13:09:41 +03:00
getting-started DOCSUP-2806: Add meta header in RU (#15801) 2020-10-26 13:29:30 +03:00
guides [docs] split aggregate function and system table references (#11742) 2020-06-18 11:24:31 +03:00
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interfaces DOCSUP-3200: Edit and translate to Russian (#16204) 2020-10-26 13:09:41 +03:00
introduction Update adopters.md 2020-10-23 08:59:57 +03:00
operations Add system.errors table 2020-10-29 10:55:38 +03:00
sql-reference Add errorCodeToName() function 2020-10-29 10:55:00 +03:00
whats-new Fix broken links in docs 2020-10-13 20:23:29 +03:00
index.md Fix broken links in docs 2020-10-13 20:23:29 +03:00