merge into可以使oracle数据表中已有数据进行合并。即有则update，否则更新
下边的示例是在jdbc数据源连接后测试通过的
1、单条数据
Long companyAuthId = SeqkeyUtil.getSeqKey(vids, "COMPANY_AUTH_ID");
CompanyAuth comtmp = companyList.get(0);
String sql = "merge into COMPANY_AUTH auth using (select ? MOBILE from dual) tmp on (auth.mobile=tmp.mobile)"+
" WHEN MATCHED THEN"+
" UPDATE SET auth.reserve=?"+
" WHEN NOT MATCHED THEN"+
" INSERT (id,MOBILE) VALUES (?, ?)";
vids.update(sql, new Object[]{comtmp.getMobile(),comtmp.getReserve(),companyAuthId+"",comtmp.getMobile()});
2、多条数据（批处理）
Long companyAuthId = SeqkeyUtil.getSeqKey(vids, "COMPANY_AUTH_ID");//seqs 表主键使用
List<Object[]> batch = new ArrayList<Object[]>();
for (CompanyAuth company : companyList) {
Object[] values = new Object[] {
company.getMobile(),
company.getReserve(),
companyAuthId+"",
company.getMobile()
};
batch.add(values);
}
String sql = "merge into COMPANY_AUTH auth using (select ? MOBILE from dual) tmp on (auth.mobile=tmp.mobile)"+
" WHEN MATCHED THEN"+
" UPDATE SET auth.reserve=?"+
" WHEN NOT MATCHED THEN"+
" INSERT (id,MOBILE) VALUES (?, ?)";
vids.batchUpdate(sql, batch);
如果出现多张表的话只需要针对using (select ? MOBILE from dual) tmp on修改即可
