sql: fix nil pointer while importing google_sql_database and remove invalid import_format (#14428) (#23643)

[upstream:3f84e8b3354b9260bbf67621bd6bb94162227310]

Signed-off-by: Modular Magician <magic-modules@google.com>

Author: modular-magician

.changelog/14428.txt

@@ -0,0 +1,7 @@
+```release-note:bug
+sql: fixed a provider crash when importing `google_sql_database` resource
+```
+
+```release-note:note
+sql: removed the invalid import format `{{name}}` for `google_sql_database` resource
+```

google/services/sql/resource_sql_database.go

@@ -241,7 +241,7 @@ func resourceSQLDatabaseRead(d *schema.ResourceData, meta interface{}) error {
 	if err != nil {
 		return err
 	}
-	if databaseInstance.Settings.ActivationPolicy != "ALWAYS" {
+	if databaseInstance.Settings != nil && databaseInstance.Settings.ActivationPolicy != "ALWAYS" {
 		return nil
 	}
 	res, err := transport_tpg.SendRequest(transport_tpg.SendRequestOptions{
@@ -449,7 +449,6 @@ func resourceSQLDatabaseImport(d *schema.ResourceData, meta interface{}) ([]*sch
 		"^instances/(?P<instance>[^/]+)/databases/(?P<name>[^/]+)$",
 		"^(?P<project>[^/]+)/(?P<instance>[^/]+)/(?P<name>[^/]+)$",
 		"^(?P<instance>[^/]+)/(?P<name>[^/]+)$",
-		"^(?P<name>[^/]+)$",
 	}, d, config); err != nil {
 		return nil, err
 	}

website/docs/r/sql_database.html.markdown

@@ -149,7 +149,6 @@ Database can be imported using any of these accepted formats:
 * `instances/{{instance}}/databases/{{name}}`
 * `{{project}}/{{instance}}/{{name}}`
 * `{{instance}}/{{name}}`
-* `{{name}}`
 
 
 In Terraform v1.5.0 and later, use an [`import` block](https://developer.hashicorp.com/terraform/language/import) to import Database using one of the formats above. For example:
@@ -168,7 +167,6 @@ $ terraform import google_sql_database.default projects/{{project}}/instances/{{
 $ terraform import google_sql_database.default instances/{{instance}}/databases/{{name}}
 $ terraform import google_sql_database.default {{project}}/{{instance}}/{{name}}
 $ terraform import google_sql_database.default {{instance}}/{{name}}
-$ terraform import google_sql_database.default {{name}}
 ```
 
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