"Debugging not possible in single session mode"

PLSQL  Developer在测试存储过程,遇到"Debugging not possible in single session mode"

解决办法:

点击菜单栏“Tools”->“Preferences”,然后按下图操作

之后再重启PLSQL Developer

原文地址:https://www.cnblogs.com/johnsonwei/p/5987302.html