ORACLE FOR UPDATE WAIT n 超时等待子句 迁移 kingbasees V8 oracle 模式 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：PG 系只有 NOWAIT/SKIP LOCKED，无 WAIT n；等待超时需改会话级 lock_timeout 参数模拟，错误码与应用重试逻辑需联动改

规则样例

SELECT * FROM acct WHERE id = 1 FOR UPDATE WAIT 5

SELECT * FROM job_queue FOR UPDATE OF status WAIT 10

SELECT * FROM acct WHERE id = 1 FOR UPDATE NOWAIT

参考来源

• https://help.kingbase.com.cn/v8/development/sql-plsql/sql/index.html
• https://bbs.kingbase.com.cn/kingbase-doc/v9/development/sql-plsql/index.html
• https://docs.oracle.com/en/database/oracle/oracle-database/19/sqlrf/SELECT.html