select col1,col2,col3 from tab1 union all
select col1,col2,col3 from tab2
O/P-
COL1 COL2 COL3
6518 10060152650 534010002
6518 10060152651 534010002
6518 10060152652 534020003
6526 10060153296 534004002
6526 10060153310 534004542
6526 10060153365 533011103
6526 10060153328 534010002
6526 10060153348 534010002
我想要这样
COL1 COL2 COL3
6518 10060152650 534010002
10060152651 534010002
10060152652 534020003
6526 10060153296 534004002
10060153310 534004542
10060153365 533011103
10060153328 534010002
10060153348 534010002
谁能帮我吗..!!