我正在执行查询,该查询必须选择count(*)输出并将插入结果插入另一个表,如下所示:
INSERT INTO db1.table1 (stopped) SELECT count(*)
FROM db2.table2 WHERE condition=2;
但是,我需要此查询来根据不同条件对输出进行计数。如何将所有此类查询合并为一个查询?
INSERT INTO db1.table1 (active) SELECT count(*)
FROM db2.table2 WHERE condition=1;
INSERT INTO db1.table1 (susp) SELECT count(*)
FROM db2.table2 WHERE condition=2 and option=4;
答案 0 :(得分:0)
您可以尝试使用union all
SELECT count(*) as cnt FROM db2.table2 WHERE condition=2
union all
SELECT count(*) FROM db2.table2 WHERE condition=1
union all
SELECT count(*) FROM db2.table2 WHERE condition=2 and option=4