我通过使型阵列创建使用PLPGSQL存储过程和做一个循环的过程内,这样我可以插入每个信息类型 CREATE TYPE info AS(
name varchar,
email_add varchar,
contact_no varchar
);
CREATE OR REPLACE FUNCTION insert_info(
info_array info[
我使用postgres来拉取一些数据。我有一个数组(类别),我想排除包含结果“>” select title, short_url, unnest(categories) as cats, winning_offer_amount
from auctions
where ended_at is not null
and '% > %' NOT IN cats
group by title,
我想对下表执行插入操作,但我无法将日期转换为ARRAY。 CREATE TABLE schedule (
idschedule serial NOT NULL,
idzone integer NOT NULL,
"time" timestamp without time zone NOT NULL,
automatic boolean NOT NULL,
需要从包含大约100列的表中检索键值对(列名,值)。 以下查询确实需要什么。 With dummy AS (
Select 1 as Col1, 2 as Col2
)
SELECT
unnest(array['Col1', 'Col2']) AS "Column Name",
unnest(array[Col1, Col2]) AS "Value"
FROM d
如何在PostgreSQL中查找三维数组的最大(或最小)元素? 是否有任何功能或更快的方法,而不是本?: min:= A[1][1][1];
for i IN 1..9 LOOP
for j IN 1..9 LOOP
for k IN 1..9 LOOP
min := least(min,A[i][j][k]);
END LOOP;
END LOOP;
END LOOP;