ORACLE 迁移 PostgreSQL 16 + orafce 改造清单

ADD_MONTHS 函数partial · minor · ora.func.add_months ALTER SESSION SET 会话参数none · minor · ora.syntax.alter_session ANYDATA 动态类型列none · critical · ora.type.anydata ASCIISTR Unicode 转义函数none · major · ora.func.asciistr 关联数组（INDEX BY 表）none · major · ora.plsql.associative_array AT TIME ZONE 时区表达式partial · major · ora.func.at_time_zone AUTHID 执行者/定义者权限模式partial · critical · ora.plsql.authid 自治事务（PRAGMA AUTONOMOUS_TRANSACTION）none · blocker · ora.plsql.autonomous_txn 触发器内自治事务undeclared · blocker · ora.trigger.autonomous_transaction 视图 BEQUEATH 子句none · minor · ora.ddl.bequeath BFILE 外部文件类型none · critical · ora.type.bfile BFILENAME 外部文件定位函数none · critical · ora.func.bfilename BIN_TO_NUM 位序列转数值partial · major · ora.func.bin_to_num BINARY_DOUBLE 类型none · minor · ora.type.binary_double BINARY_FLOAT 类型none · minor · ora.type.binary_float Oracle 二进制浮点特殊字面量partial · critical · ora.literal.binary_float_special BITAND 函数partial · minor · ora.func.bitand BITMAP 位图索引none · major · ora.index.bitmap BULK COLLECT 批量取数none · major · ora.plsql.bulk_collect LENGTHB / SUBSTRB / INSTRB 字节语义函数none · major · ora.func.byte_semantics CDB/多租户与排序规则 DDL 子句（SHARING / DEFAULT COLLATION / CONTAINER_MAP）none · minor · ora.ddl.container_clauses CHAR 定长补空格类型partial · minor · ora.type.char_padding CHR(0) NUL 字符语义差异undeclared · major · ora.func.chr_zero Oracle 聚簇表与 CLUSTER 子句none · major · ora.object.cluster_table Oracle 集合 CARDINALITYpartial · major · ora.func.cardinality SQL 层集合运算函数none · major · ora.func.collection_sql 列 DEFAULT 使用序列伪列none · major · ora.column.default_sequence 存储过程内 COMMIT/ROLLBACKpartial · major · ora.plsql.commit_in_proc 复合 UNIQUE 的部分 NULL 唯一性语义undeclared · blocker · ora.constraint.composite_unique_null 字符串拼接 || 的 NULL 语义partial · minor · ora.behavior.concat_null CONNECT BY 层次查询none · major · ora.syntax.connect_by CONNECT BY 操作数含函数undeclared · critical · ora.syntax.connect_by_function_operand LEVEL 层次伪列none · major · ora.syntax.level_pseudocolumn CONNECT_BY_ROOT 层次操作符none · major · ora.syntax.connect_by_root 约束 DISABLE 状态partial · major · ora.ddl.constraint_disable 游标属性（%FOUND/%NOTFOUND/%ISOPEN/%ROWCOUNT）none · major · ora.plsql.cursor_attributes SQL%BULK_ROWCOUNT 逐项批量 DML 计数none · critical · ora.cursor.sql_bulk_rowcount 游标 FOR 循环partial · minor · ora.plsql.cursor_for_loop 日期直接加减数字（天数运算）partial · major · ora.behavior.date_arithmetic DATE 映射 TIMESTAMP 后日期差聚合类型变化partial · critical · ora.dm.timestamp_delta_aggregate DATE 类型含时间部分的语义partial · major · ora.type.date_semantics DBLINK 引用（obj@link）partial · major · ora.object.dblink_ref 过程体内 DBLINK 引用（obj@link）partial · critical · ora.plsql.dblink_in_body DBMS_RANDOM 随机数调用（过程体内）partial · minor · ora.pkg.dbms_random DBMS_RANDOM 包调用partial · minor · ora.func.dbms_random DBMS_JOB 定时作业调用（过程体内）none · major · ora.pkg.dbms_job DBMS_SCHEDULER 调度器调用（过程体内）none · major · ora.pkg.dbms_scheduler DBMS_SCHEDULER / DBMS_JOB 调度作业none · major · ora.plsql.dbms_scheduler DBTIMEZONE 数据库时区函数partial · major · ora.func.dbtimezone DECODE 函数partial · major · ora.func.decode DEFAULT ON NULL 列默认值none · minor · ora.column.default_on_null DETERMINISTIC 函数标记none · minor · ora.plsql.deterministic DUAL 虚表partial · minor · ora.syntax.dual DUMP 内部表示诊断函数partial · major · ora.func.dump 动态 SQL（EXECUTE IMMEDIATE / DBMS_SQL）partial · major · ora.plsql.dynamic_sql OPEN FOR 直接使用 SQL 字符串表达式partial · critical · ora.cursor.open_expression EDITIONABLE / NONEDITIONABLE 关键字none · minor · ora.ddl.editionable EMPTY_CLOB / EMPTY_BLOB 函数none · minor · ora.func.empty_lob 与空串字面量的等值/不等比较（'' 即 NULL 语义）none · critical · ora.behavior.empty_string_compare EXCEPTION 异常处理块partial · minor · ora.plsql.exception_block 显式游标声明（CURSOR ... IS）partial · minor · ora.plsql.cursor_explicit Java/C 外部语言存储例程none · critical · ora.plsql.external_routine 外部表（ORGANIZATION EXTERNAL）partial · critical · ora.object.external_table FIRST_VALUE IGNORE NULLSundeclared · major · ora.func.first_value_ignore_nulls FLASHBACK 查询（AS OF SCN/TIMESTAMP、VERSIONS BETWEEN）none · major · ora.syntax.flashback_query SELECT ... FOR UPDATE OF 列级锁定写法partial · minor · ora.syntax.for_update_of 外连接查询 FOR UPDATEundeclared · critical · ora.syntax.for_update_outer_join FOR UPDATE WAIT n 超时等待子句none · minor · ora.syntax.for_update_wait FORALL 批量 DMLnone · major · ora.plsql.forall CREATE FORCE VIEWnone · minor · ora.ddl.view_force FROM_TZ 时区附加函数partial · major · ora.func.from_tz Oracle Text 全文索引与 CTX 包none · critical · ora.index.fulltext_context PL/SQL 代码中的全角标点none · major · ora.plsql.fullwidth_punctuation 索引表达式中的 TO_DATE/TO_CHARundeclared · critical · ora.index.nonimmutable_conversion MDSYS / SDO 空间类型与包none · critical · ora.func.gis_sdo 全局临时表（GLOBAL TEMPORARY TABLE）none · major · ora.object.gtt GOTO 语句none · major · ora.plsql.goto GREATEST / LEAST 函数（NULL 传播差异）partial · major · ora.func.greatest_least GROUP_ID / GROUPING_ID 分组函数partial · minor · ora.func.grouping_id 对象/列标识符长度超过目标限制partial · minor · ora.limit.identifier_length