update link

Author: Blargian

docs/integrations/data-visualization/tableau/tableau-analysis-tips.md

@@ -52,7 +52,7 @@ ClickHouse has a huge number of functions that can be used for data analysis —
 - **`RANDOM()`** *(added in v0.2.1)* — unofficial [`RANDOM()`](https://kb.tableau.com/articles/issue/random-function-produces-inconsistent-results) Tableau function, which returns float between 0 and 1.
 - **`RAND_CONSTANT([optional_field])`** *(added in v0.2.1)* — Produces a constant column with a random value. Something like `{RAND()}` Fixed LOD, but faster. Equivalent of [`randConstant()`](/sql-reference/functions/random-functions/#randconstant).
 - **`REAL([my_number])`** — Casts field to float (Float64). Details [`here`](/sql-reference/data-types/decimal/#operations-and-result-type).
-- **`SHA256([my_string])`** *(added in v0.2.1)* — Calculates SHA-256 hash from a string and returns the resulting set of bytes as a string (FixedString). Convenient to use with the `HEX()` function, for example, `HEX(SHA256([my_string]))`. Equivalent of [`SHA256()`](/sql-reference/functions/hash-functions#sha1-sha224-sha256-sha512-sha512_256).
+- **`SHA256([my_string])`** *(added in v0.2.1)* — Calculates SHA-256 hash from a string and returns the resulting set of bytes as a string (FixedString). Convenient to use with the `HEX()` function, for example, `HEX(SHA256([my_string]))`. Equivalent of [`SHA256()`](/sql-reference/functions/hash-functions#SHA256).
 - **`SKEWNESS([my_number])`** — Computes the sample skewness of a sequence. Equivalent of [`skewSamp()`](/sql-reference/aggregate-functions/reference/skewsamp).
 - **`SKEWNESSP([my_number])`** — Computes the skewness of a sequence. Equivalent of [`skewPop()`](/sql-reference/aggregate-functions/reference/skewpop).
 - **`TO_TYPE_NAME([field])`** *(added in v0.2.1)* — Returns a string containing the ClickHouse type name of the passed argument. Equivalent of [`toTypeName()`](/sql-reference/functions/other-functions#totypename).