Hive_刪除數據庫

1．刪除空數據庫

hive>drop database db_hive2;

2．如果刪除的數據庫不存在，最好采用 if exists判斷數據庫是否存在

hive> drop database db_hive;
FAILED: SemanticException [Error 10072]: Database does not exist: db_hive
hive> drop database if exists db_hive2;

3．如果數據庫不為空，可以采用cascade命令，強制刪除

hive> drop database db_hive;
FAILED: Execution Error, return code 1 from org.apache.hadoop.hive.ql.exec.DDLTask. InvalidOperationException(message:Database db_hive is not empty. One or more tables exist.)
hive> drop database db_hive cascade;