When trying to run a class made in java , I get the following error message:
java.lang.UnsupportedClassVersionError: MyClass (Unsupported major.minor version 50.0)
What does this error message mean?
I need to export the records of some tables of the same schema in oracle , but due to limitations in the machine from which I am going to carry out this process, I need to know the number of rows of the tables of said schema to decide if I do it this way or I use another alternative to copy the records between one environment and another.
How can I quickly and effectively determine the number of records of all tables in the schema?