everly-gif commented on code in PR #18079:
URL: https://github.com/apache/shardingsphere/pull/18079#discussion_r885328012
##########
docs/document/content/reference/distsql/syntax/rdl/resource-definition/alter-resource.en.md:
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@@ -0,0 +1,57 @@
++++
+title = "ALTER RESOURCE"
+weight = 3
++++
+
+
+### Description
+
+The `ALTER RESOURCE` syntax is used to alter resources for the currently
selected schema.
+
+
+
+### Syntax
+```SQL
+AlterResource ::=
+ 'ALTER' 'RESOURCE' dataSource (',' dataSource)*
+
+dataSource ::=
+ dataSourceName '(' ( 'HOST' '=' hostName ',' 'PORT' '=' port ',' 'DB' '='
dbName | 'URL' '=' url ) ',' 'USER' '=' user (',' 'PASSWORD' '=' password )?
(',' 'PROPERTIES' '(' ( key '=' value ) ( ',' key '=' value )* ')' )?')'
+
+dataSourceName ::=
+ identifier
+
+hostname ::=
+ identifier | ip
+
+dbName ::=
+ identifier
+
+port ::=
+ int
+
+password ::=
+ identifier | int | string
+
+user ::=
+ identifier
+
+url ::=
+ identifier | string
+
+```
+
Review Comment:
Referring the syntax in the `g4` file for `ALTER RESOURCE` =>
https://github.com/apache/shardingsphere/blob/master/shardingsphere-distsql/shardingsphere-distsql-parser/src/main/antlr4/imports/RDLStatement.g4#L26
You can use the same examples from `ADD RESOURCE` Just change `ADD RESOURCE`
to `ALTER RESOURCE` in the examples .
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