Ora2pg 16.0 发布，Oracle 转 PostgreSQL 工具

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　　Ora2pg 可以用来将 Oracle 数据库转换成 PostgreSQL。
　　Ora2pg 16.0 发布，此版本主要改进了 PL/SQL 代码替换，修复了一些 bug，添加了一些新特性：

• 　　Full migration of MySQL database, it just work like with Oracle database.
  
• 　　Full migration assessment report for MySQL database.
  
• 　　New script, ora2pg_scanner, to perform a migration assessment of all Oracle and MySQL instances on a network.
  
• 　　Add technical difficulty level in migration assessment.
  
• 　　Allow migration assessment on client queries extracted from AUDIT_TRAIL (oracle) or general_log table (mysql).
  
• 　　Ora2Pg has a "made in one night" brand new Web site (still need some work) http://ora2pg.darold.net/
  

　　其他新特性：

• 　　Export type SHOW_TABLE now shows additional information about table type (FOREIGN, EXTERNAL or PARTITIONED with the number of partition).
  
• 　　Connection's user and password can be passed through environment variables ORA2PG_USER and ORA2PG_PASSWD to avoid setting them at ora2pg command line.
  
• 　　Improve PL/SQL replacement on ADD_MONTH(), ADD_YEAR(), TRUNC(), INSTR() and remove the replacement limitation on DECODE().
  
• 　　Add detection of migration difficulties in views, was previously reserved to functions, procedures, packages and triggers.
  
• 　　Replace values in auto generated configuration file from command line options -s, -n, -u and -p when --init_project is used.
  
• 　　Adjust lot of scores following new functionalities in Ora2Pg, ex: autonomous transactions, dblink or synomyms are now more easy to migrate.
  

　　为 ora2pg 脚本增加新选项：

• 　　-m | --mysql : to be used with --init_project and -i option to inform ora2pg that we work with a MySQL format
  
• 　　-T | --temp_dir : option to be able to set a distinct temporary directory to run ora2pg in parallel.
  
• 　　--audit_user : option to set the user used in audit filter and enable migration assessment report on queries from AUDIT_TRAIL (oracle) or general_log table (mysql).
  
• 　　--dump_as_sheet and --print_header options to be able to compute a CSV file with all migration assessment from a list of oracle database.
  
• 　　--dump_as_csv option to report assessments into a csv file. It will not include comments or details, just objects names, numbers and cost.
  

　　非向后兼容改进：

• 　　Change NULL_EQUAL_EMPTY to be disabled by default to force change in the application instead of transforming the PL/SQL.
  

　　新配置指令

• 　　MYSQL_PIPES_AS_CONCAT: Enable it if double pipe and double ampersand(|| and &&) should not be taken as equivalent to OR and AND.
  
• 　　MYSQL_INTERNAL_EXTRACT_FORMAT: Enable it if you want EXTRACT() replacement to use the internal format returned as an integer.
  
• 　　AUDIT_USER: Set the comma separated list of user name that must be used to filter from the DBA_AUDIT_TRAIL or general_log tables.
  
• 　　REPLACE_ZERO_DATE: the "zero" date: 0000-00-00 00:00:00 is replaced by a NULL by default, use it to use the date of your choice. Useful whenyou have a NOT NULL constraint.
  
• 　　INDEXES_RENAMING: force renaming of all indexes using a name with tablename_columnsnames. Useful for database that have multiple time the same index name or that use the same name than a table.
  
• 　　HUMAN_DAYS_LIMIT: default to 5 days, used to set the number of human-days limit for migration of type C.
  

　　更多内容请看：
　　

• 　　Website: ora2pg.darold.net
  
• 　　Download: sourceforge.net/projects/ora2pg
  
• 　　Development: github.com/darold/ora2pg
  
• 　　Changelog: github.com/darold/ora2pg/blob/master/changelog
  
• 　　Documentation: github.com/darold/ora2pg/blob/master/README