chore: remove node.js only marker for most standard functions (#2169)

most of the standard database functions are also supported by the java
runtime. Hence this section needed to be updated.

Date / Aggregation / SAP HANA functions are still a todo for Java. Once
the BLIs are implemented, we can also unlock those sections for Java.

---------

Co-authored-by: Adrian Görler <adrian.goerler@sap.com>

Author: patricebender

guides/databases.md

@@ -921,12 +921,12 @@ Instead, they protect the integrity of your data in the database layer against p
 
 ## Standard Database Functions
 
-A specified set of standard functions - inspired by [OData](https://docs.oasis-open.org/odata/odata/v4.01/odata-v4.01-part2-url-conventions.html#sec_StringandCollectionFunctions) and [SAP HANA](https://help.sap.com/docs/hana-cloud-database/sap-hana-cloud-sap-hana-database-sql-reference-guide/alphabetical-list-of-functions?locale=en-US) - is supported in a **database-agnostic**, hence portable way, and translated to the best-possible native SQL functions or polyfills during runtime (currently only Node.js) and for your CDL files.
+A specified set of standard functions - inspired by [OData](https://docs.oasis-open.org/odata/odata/v4.01/odata-v4.01-part2-url-conventions.html#sec_StringandCollectionFunctions) and [SAP HANA](https://help.sap.com/docs/hana-cloud-database/sap-hana-cloud-sap-hana-database-sql-reference-guide/alphabetical-list-of-functions?locale=en-US) - is supported in a **database-agnostic**, hence portable way. The functions are translated to the best-possible database-specific SQL expressions at runtime and also during compilation of your CDL files.
 
 
 ### OData standard functions
 
-The `@sap/cds-compiler` and all CAP Node.js database services come with out of the box support for common OData functions.
+The `@sap/cds-compiler` and the database services come with out of the box support for common OData functions.
 
 ::: warning Case Sensitivity
 The OData function mappings are case-sensitive and must be written as in the list below.
@@ -1021,6 +1021,8 @@ For example, `startsWith` instead of `startswith` will be passed as-is to the da
   If you provide more than one argument, the `round` function may behave differently depending on the database.
   :::
 
+<div class="impl node">
+
 #### Date and Time Functions
 
 - `year(x)`, `month(x)`, `day(x)`, `hour(x)`, `minute(x)`, `second(x)`
@@ -1038,11 +1040,14 @@ For example, `startsWith` instead of `startswith` will be passed as-is to the da
 - `mindatetime()`
   Returns the earliest possible point in time: `'0001-01-01T00:00:00.000Z'`.
 
+</div>
+
 #### Aggregate Functions
 
 - `min(x)`, `max(x)`, `sum(x)`, `average(x)`, `count(x)`, `countdistinct(x)`
   Standard aggregate functions used to calculate minimum, maximum, sum, average, count, and distinct count of values.
 
+<div class="impl node">
 
 ### SAP HANA Functions
 
@@ -1066,7 +1071,7 @@ For the SAP HANA functions, both usages are allowed: all-lowercase as given abov
 
 ### Special Runtime Functions
 
-In addition to the OData and SAP HANA standard functions, the **CAP runtimes** provides special functions that are only available for runtime queries:
+In addition to the OData and SAP HANA standard functions, the **CAP runtime** provides special functions that are only available for runtime queries:
 
 - `search(x, y)`
   Checks whether `y` is contained in any element of `x` (fuzzy matching may apply).
@@ -1079,6 +1084,8 @@ In addition to the OData and SAP HANA standard functions, the **CAP runtimes** p
 - `now()`
   Returns the current timestamp.
 
+</div>
+
 ## Using Native Features  { #native-db-functions}
 
 In general, the CDS 2 SQL compiler doesn't 'understand' SQL functions but translates them to SQL generically as long as they follow the standard call syntax of `function(param1, param2)`. This allows you to use native database functions inside your CDS models.
@@ -1191,4 +1198,4 @@ Once you have 2 non-HANA local databases, you need to have 2 distinct database c
 
 </div>
 
-CAP samples demonstrate this in [@capire/bookstore](https://github.com/capire/bookstore/tree/main/db).
+CAP samples demonstrate this in [@capire/bookstore](https://github.com/capire/bookstore/tree/main/db).