add a gv query

dumper/app/src/main/java/com/google/edwmigration/dumper/application/dumper/connector/oracle/StatsTaskListGenerator.java

@@ -34,6 +34,7 @@ ImmutableList<Task<?>> createTasks(ConnectorArguments arguments) throws IOExcept
     ImmutableList<OracleStatsQuery> queries =
         ImmutableList.of(
             OracleStatsQuery.create("db-features", METADATA),
+            OracleStatsQuery.create("db-instances", METADATA),
             OracleStatsQuery.create("pdbs-info", METADATA),
             OracleStatsQuery.create("app-schemas-pdbs", METADATA),
             OracleStatsQuery.create("app-schemas-summary", METADATA),

dumper/app/src/main/resources/oracle-stats/metadata/db-instances.sql

@@ -0,0 +1,40 @@
+-- Copyright 2022-2024 Google LLC
+-- Copyright 2013-2021 CompilerWorks
+--
+-- Licensed under the Apache License, Version 2.0 (the "License");
+-- you may not use this file except in compliance with the License.
+-- You may obtain a copy of the License at
+--
+--     http://www.apache.org/licenses/LICENSE-2.0
+--
+-- Unless required by applicable law or agreed to in writing, software
+-- distributed under the License is distributed on an "AS IS" BASIS,
+-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+-- See the License for the specific language governing permissions and
+-- limitations under the License.
+SELECT
+  A.inst_id "InstId",
+  A.instance_number "InstanceNumber",
+  A.instance_name "InstanceName",
+  A.host_name "HostName",
+  A.version "Version",
+  A.version_legacy "VersionLegacy",
+  A.version_full "VersionFull",
+  A.startup_time "StartupTime",
+  A.status "Status",
+  A.parallel "Parallel",
+  A.thread# "ThreadNumber",
+  A.archiver "Archiver",
+  A.log_switch_wait "LogSwitchWait",
+  A.logins "Logins",
+  A.shutdown_pending "ShutdownPending",
+  A.database_status "DatabaseStatus",
+  A.instance_role "InstanceRole",
+  A.active_state "ActiveState",
+  A.blocked "Blocked",
+  A.con_id "ConId",
+  A.instance_mode "InstanceMode",
+  A.edition "Edition",
+  A.family "Family",
+  A.database_type "DatabaseType"
+FROM gv$instance A