利用 show tables in DBname like ‘TABLEname’ 语句
var userid = "test"
var datasetid1 = "dm_op_log"
var datasetid2 = "bb"
var s = spark.sql(s"show tables in $userid like '$datasetid1' ")
s.show()
println("@@@@", s.count())
var s2 = spark.sql(s"show tables in $userid like '$datasetid2' ")
s2.show()
println("!!!!", s2.count())
print(s.count()==0, "~~~~~~~~~", s2.count()==0)
结果：
参考链接：https://www.thinbug.com/q/21194677
