https://stackoverflow.com/questions/40949967/running-storm-from-intellij-nimbus-error 0down votefavorite I am learning storm, and I made a simple project. I remember running it, and it worked as I can recall, but now when I try to run it from intel…
https://stackoverflow.com/questions/16130292/java-lang-outofmemoryerror-permgen-space-java-reflection When using Java reflection, the JVM has two methods of accessing the information on the class being reflected. It can use a JNI accessor, or a Java…
select phone,count(order_id) as c from table_recordgroup by phoneorder by c desc SELECT CASEWHEN (age >= 10 AND age <= 20) THEN '10-20'WHEN (age >= 21 AND age <= 30) THEN '21-30'ELSE '30-'END 'eag_layer', count(*) empsFROM address_bookGROUP BY…
