单行子查询
只返回一行结果的子查询,称为单行子查询。对于单行子查询的结果我们可以使用单行操作符来构造外查询条件,如 >、<、 等等。
废话少说上代码
select * from city
where population >
(select population from city where nametoky…
我遇到此错误是在多表关联update的
UPDATE EDASYS.CELL_COMPONENT_T A
SET A.ARRAY_GLASS_ID (SELECT M.ARRAY_GLASS_ID FROM EDASYS.CELL_ARRAY_CF_MAPPING_T M WHERE M.CF_GLASS_ID A.COMPONENT_ID AND rownum < 2)
WHERE EXISTS (SELECT 1 FROM EDASYS.CELL_ARR…
with order_base as --获取订单基础情况 ( select ou.order_key order_key, ou.order_quantity_i, ood.dispatch_time_t, ou.part_number_s, I032ZZ01 pline_name_s from order_uv ou left join at_as_om_orderdispatchstatus ood on ou.order_key ood.order_54 union all sel…