Add examples

Author: Hunterness

modules/ROOT/pages/errors/gql-errors/22N69.adoc

@@ -6,6 +6,24 @@
 error: data exception - index does not exist. The index `{ <<idxDescrOrName>> }` does not exist.
 
 
+== Example scenario
+
+For example, try to drop a non-existing index:
+
+[source,cypher]
+----
+DROP INDEX `nonExisting`
+----
+
+You will receive an error with GQLSTATUS xref:errors/gql-errors/50N10.adoc[50N10].
+This error has a cause with GQLSTATUS 22N69 and status description:
+
+[source]
+----
+error: data exception - index does not exist. The index 'nonExisting' does not exist.
+----
+
+
 ifndef::backend-pdf[]
 [discrete.glossary]
 == Glossary

modules/ROOT/pages/errors/gql-errors/22N71.adoc

@@ -6,6 +6,30 @@
 error: data exception - duplicated index name. An index with the same name already exists: `{ <<idx>> }`.
 
 
+== Example scenario
+
+For example, try to create an index when there is another existing index with that name:
+
+Given:
+[source,cypher]
+----
+CREATE INDEX `myIndex` FOR (n:Person) ON (n.name)
+----
+
+Then, when attempting to create:
+[source,cypher]
+----
+CREATE INDEX `myIndex` FOR (n:Book) ON (n.title)
+----
+
+You will receive an error with GQLSTATUS 22N71 and status description:
+
+[source]
+----
+error: data exception - duplicated index name. An index with the same name already exists: `myIndex`
+----
+
+
 ifndef::backend-pdf[]
 [discrete.glossary]
 == Glossary