Persistent Volume Claim is not connect with MYSQL pod

I m trying to connect google cloud disk as a kubernetes MYSQL storage.
So I create PVC file and connect it . but it doesn’t work . please help me

pvc-mysql.yaml

3apiVersion: v1
kind: PersistentVolumeClaim
metadata:
  name: mysql-data-claim
spec:
  storageClassName: standard
  accessModes:
    - ReadWriteOnce
  resources:
    requests:
      storage: 3Gi

wordpressdb-deployment.yaml

apiVersion: apps/v1
kind: Deployment
metadata:
  name: wordpressdb
spec:
  ......
    spec:
      volumes:
      - name: mysql-data
        persistentVolumeClaim:
          claimName: mysql-data-claim
      containers:
   .............
        volumeMounts:
        - mountPath: "/var/lib/mysql"
          name: mysql-data
          subPath: mysql
    .....

hey @Sameera_Wijerathna
Any error?