{"record":{"id":"f44ff6bd6eb5966c","repo":"apache/seatunnel","slug":"could-not-query-the-view","errorCode":null,"errorMessage":"Could not query the {} view: {}","messagePattern":"Could not query the (.+?) view: (.+?)","errorType":"console","errorClass":null,"httpStatus":null,"severity":"error","filePath":"seatunnel-connectors-v2/connector-cdc/connector-cdc-oracle/src/main/java/io/debezium/connector/oracle/logminer/LogMinerAdapter.java","lineNumber":230,"sourceCode":"                    LOGGER.info(\"NOT EMPTY TRSNASSS: {}\", results);\n                }\n                rs2.close();\n\n                while (rs.next()) {\n                    if (currentScn == null) {\n                        // Only need to set this once per iteration\n                        currentScn = Scn.valueOf(rs.getString(1));\n                    }\n                    final String pendingTxStartScn = rs.getString(3);\n                    if (!Strings.isNullOrEmpty(pendingTxStartScn)) {\n                        // There is a pending transaction, capture state\n                        transactions.put(\n                                HexConverter.convertToHexString(rs.getBytes(2)),\n                                Scn.valueOf(pendingTxStartScn));\n                    }\n                }\n            } catch (SQLException e) {\n                LOGGER.warn(\n                        \"Could not query the {} view: {}\", transactionTableName, e.getMessage(), e);\n                throw e;\n            }\n\n        } while (areSameTimestamp(latestTableDdlScn, currentScn, connection));\n\n        for (Map.Entry<String, Scn> transaction : transactions.entrySet()) {\n            LOGGER.trace(\n                    \"\\tPending Transaction '{}' started at SCN {}\",\n                    transaction.getKey(),\n                    transaction.getValue());\n        }\n\n        return Optional.ofNullable(currentScn);\n    }\n\n    private OracleOffsetContext determineSnapshotOffset(\n            OracleConnectorConfig connectorConfig,","sourceCodeStart":212,"sourceCodeEnd":248,"githubUrl":"https://github.com/apache/seatunnel/blob/cf67b549a7a6c35fa0beb12d83c62892427ea919/seatunnel-connectors-v2/connector-cdc/connector-cdc-oracle/src/main/java/io/debezium/connector/oracle/logminer/LogMinerAdapter.java#L212-L248","documentation":"LogMinerAdapter.getPendingTransactions queries an Oracle dictionary view (e.g. v$transaction or a configured transaction table) to map pending transaction XIDs to start SCNs. On SQLException it logs 'Could not query the {view} view' with the SQL message, then rethrows — callers (determineSnapshotOffset) treat it as fatal for snapshot offset computation.","triggerScenarios":"getPendingTransactions executing the SELECT against transactionTableName fails: missing privileges on the view, view not present in the Oracle version, LogMiner not configured, or connection dropped mid-query.","commonSituations":"User lacks SELECT on V_$TRANSACTION grant; Oracle Express or restricted PDB without required dictionary views; network/session timeout during snapshot; wrong transaction view name in connector config.","solutions":["Grant the connector user: GRANT SELECT ON v_$transaction TO <user>; plus logmining privileges (SELECT ANY TRANSACTION, LOGMINING).","Verify the Oracle user has SELECT_CATALOG_ROLE and the view exists: SELECT * FROM v$transaction;","Check DB connectivity/session validity; reconnect and retry the snapshot.","Confirm transactionTableName matches a view available in your Oracle edition/version."],"exampleFix":"// before (as SYS)\nCREATE USER cdc identified by pwd; GRANT create session TO cdc;\n// after\nGRANT SELECT ON v_$transaction TO cdc;\nGRANT SELECT_CATALOG_ROLE TO cdc;\nGRANT LOGMINING TO cdc;","handlingStrategy":"validation","validationCode":"SELECT count(*) FROM v$transaction; -- must succeed for the CDC user before snapshot","typeGuard":null,"tryCatchPattern":"try { adapter.getPendingTransactions(); } catch (SQLException e) { log.error(\"Grant SELECT on {} to CDC user\", transactionTableName, e); throw e; }","preventionTips":["GRANT SELECT ON v_$transaction, SELECT_CATALOG_ROLE, LOGMINING to CDC user.","Verify view availability on target Oracle edition.","Pre-flight connectivity test before snapshot."],"tags":["oracle-cdc","logminer","sql","permissions"],"backgroundTag":"sql-query-failed","analyzedSha":"cf67b549a7a6c35fa0beb12d83c62892427ea919","analyzedAt":"2026-09-10T21:44:55.265Z","contentChangedAt":"2026-09-10T21:44:55.265Z","schemaVersion":2},"datasetVersion":"2026-09-23T08:17:48.524Z"}