需求：
在實際資料庫查詢中可能需要將多個查詢結果列並列顯示。將查詢結果並列成一張表。用group_concat關鍵字來實現查詢結果的並列。
select count(*) wpcount,(select group_concat(sub1.lpcount) from(select count(*) lpcount from limit_power_for_daily where lp_lp_rate_fd>0.05 and lp_year=2019 and lp_month=7)sub1) lpcount,
(select group_concat(sub2.npcount) from(select count(*) npcount from limit_power_for_daily where ne_lp_rate_fd>0.05 and lp_year=2019 and lp_month=7)sub2) npcount
from limit_power_for_daily where wp_lp_rate_fd>0.1 and lp_year=2019 and lp_month=7
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