ORA-02290 违反检查约束
使用plsql编译pkg报错，错误信息如下：
解决方法：
sqlplus / as sysdba
exec dbms_java_dev.enable;
参考官方文档：
Database Upgrade Fails with Errors “ORA-02290: check constraint (SYS.JAVA_DEV_DISABLED) violated” & “ORA-04045: SYS.DBMS_ISCHED” (文档 ID 1985725.1)
Start the Target DB in Upgrade mode.
Connect to the database as a SYSDBA user & execute:
SQL> exec dbms_java_dev.enable;
官方文档提供解决方法：
(笔者原创文章，转载请注明出处：https://blog.csdn.net/LFCuiYs）谢谢！