Param Sytax error

Neo4j Graph Platform Cypher
1

Dear Everyone,

I literally copy paste the following from the help file and got a syntax error. Am I missing something?


:param name => 'Stella'
MATCH (n:Person) WHERE n.name = $name
return t

Here is the error message

Syntax error at line 2 col 0:

  MATCH (n:Person) WHERE n.name = $name
  ^
Unexpected "\n".

I am attempting to understand parameters and why they are necessary or when to use them.

2

Hi @tideon ,

You need to set the parameter(name to 'Stella') first by running it separately:
:param name => 'Stella'

And now use the parameter in Cypher query-
MATCH (n:Person) WHERE n.name = $name
return n

Using parameters, rather than hard coding values, will allow for reuse of the query plan cache.

1 Like
3

And is the param in the background untime you restart the database? The information in the manual isn't clear about what it entails.

4

Also thank you Akaur for the answer.

The manual doesn't mention these types of little details.