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使用Flink CDC实现 Oracle数据库数据同步的oracle配置操作，包括开启日志归档和用户授权。

flink官方参考资料：

https://nightlies.apache.org/flink/flink-cdc-docs-master/zh/docs/connectors/flink-sources/oracle-cdc/

操作步骤：

1.启用归档日志

alter system set db_recovery_file_dest_size = 10G;

alter system set db_recovery_file_dest = '/opt/oracle/oradata/recovery_area' scope=spfile;

shutdown immediate;

startup mount;

alter database archivelog;

alter database open;

2.查看是否已经启用归档模式

显示“Archive Mode”表示已启用

archive log list;

3.创建表空间

CREATE TABLESPACE logminer_tbs DATAFILE '/opt/oracle/oradata/SID/logminer_tbs.dbf' SIZE 25M REUSE AUTOEXTEND ON MAXSIZE UNLIMITED;

4.创建用户并授权

CREATE USER flinkuser IDENTIFIED BY flinkpw DEFAULT TABLESPACE LOGMINER_TBS QUOTA UNLIMITED ON LOGMINER_TBS;
GRANT CREATE SESSION TO flinkuser;
GRANT SET CONTAINER TO flinkuser;
GRANT SELECT ON V_$DATABASE to flinkuser;
GRANT FLASHBACK ANY TABLE TO flinkuser;
GRANT SELECT ANY TABLE TO flinkuser;
GRANT SELECT_CATALOG_ROLE TO flinkuser;
GRANT EXECUTE_CATALOG_ROLE TO flinkuser;
GRANT SELECT ANY TRANSACTION TO flinkuser;
GRANT LOGMINING TO flinkuser;
GRANT ANALYZE ANY TO flinkuser;
GRANT CREATE TABLE TO flinkuser;
GRANT LOCK ANY TABLE TO flinkuser;
GRANT ALTER ANY TABLE TO flinkuser;
GRANT CREATE SEQUENCE TO flinkuser;
GRANT EXECUTE ON DBMS_LOGMNR TO flinkuser;
GRANT EXECUTE ON DBMS_LOGMNR_D TO flinkuser;
GRANT SELECT ON V_$LOG TO flinkuser;
GRANT SELECT ON V_$LOG_HISTORY TO flinkuser;
GRANT SELECT ON V_$LOGMNR_LOGS TO flinkuser;
GRANT SELECT ON V_$LOGMNR_CONTENTS TO flinkuser;
GRANT SELECT ON V_$LOGMNR_PARAMETERS TO flinkuser;
GRANT SELECT ON V_$LOGFILE TO flinkuser;
GRANT SELECT ON V_$ARCHIVED_LOG TO flinkuser;
GRANT SELECT ON V_$ARCHIVE_DEST_STATUS TO flinkuser;