ORACLE IDENTITY 自增列 迁移 gbase 8s 怎么改

兼容性判定

怎么改

需按命中位置逐条评估改写

判定说明

能力矩阵暂未声明该特征，按未覆盖处理并降低置信度，建议 PoC 复核

库侧 / 应用侧路径

推荐路线：case_by_case。验证建议：功能本身兼容，但要核对 IDENTITY 选项（INCREMENT BY 等，源工具逐项比对）； OB 侧内部序列命名 ISEQ$$_*，跨 schema 写入需额外补内部序列的 SELECT 授权， 否则"表 grant 齐了但 INSERT 仍失败"

规则样例

CREATE TABLE t (id NUMBER GENERATED ALWAYS AS IDENTITY, v VARCHAR2(10))

CREATE TABLE t (id NUMBER GENERATED BY DEFAULT ON NULL AS IDENTITY (START WITH 100 INCREMENT BY 2))

CREATE TABLE t (total NUMBER GENERATED ALWAYS AS (price*qty) VIRTUAL)

参考来源

• https://www.gbase.cn/docs/gbase-8s/05%20%E6%95%B0%E6%8D%AE%E5%BA%93%E5%BC%80%E5%8F%91/03%20SQL%E6%8C%87%E5%8D%97%E8%AF%AD%E6%B3%95/
• https://docs.gbasedbt.com/gbase8s/
• internal: Minorli/ob_comparator schema_diff_reconciler.py:53979 COMPARE.TABLE.COLUMN.IDENTITY.V1
• internal: Minorli/ob_comparator README.md (identity sequence 授权感知)