postgresql:array & foreach

--数组:
SELECT (ARRAY['{101, 111, 121}', '{201, 211, 221}'])[1]::text[];
SELECT (ARRAY['{101, 111, 121}', '{201, 211, 221}'])::text[];
SELECT (ARRAY['{101, 111, 121}', '{201, 211, 221}'])[1]::text[];
SELECT (ARRAY['{101, 111, 121}'::int[], '{201, 211, 221}'])::int[];
SELECT (ARRAY['{101, 111, 121}'::int[], '{201, 211, 221}'])[1][1];
SELECT (ARRAY['{{101, 111, 121},{201, 211, 221}}'])[1];
SELECT (ARRAY['{{101, 111, 121},{201, 211, 221}}'])[1]::int[];

  

--select rows to array
SELECT ARRAY(select "Id" FROM ent."Enterprise" )
SELECT ARRAY(select "Id" FROM ent."Enterprise" )::int[]
--array foreach
DO
$do$
DECLARE
m varchar[];
arr varchar[] := array[['key1','val1'],['key2','val2']];
BEGIN
FOREACH m SLICE 1 IN ARRAY arr
LOOP
RAISE NOTICE 'another_func(%,%)',m[1], m[2];
END LOOP;
END
$do$
DO
$do$
DECLARE
m varchar[];
arr varchar[] := array['key1','val1'];
BEGIN
FOREACH m SLICE 1 IN ARRAY arr
LOOP
RAISE NOTICE 'another_func(%)',m;
END LOOP;
END
$do$

  

--一维数组
DO
$do$
DECLARE
m int;
arr int[] := ARRAY(select "Id" FROM ent."Enterprise" )::int[];
BEGIN
FOREACH m IN ARRAY arr
LOOP
RAISE NOTICE 'another_func(%)',m;
END LOOP;
END
$do$

   

--each insert from select
DO
$do$
DECLARE
m int;
arr int[] := ARRAY(select "Id" FROM "Enterprise" )::int[];
BEGIN
FOREACH m IN ARRAY arr
LOOP
INSERT INTO "Wallet"("Id")
VALUES (m);
  RAISE NOTICE 'another_func(%)',m;
END LOOP;
END
$do$

  

多维数组

WITH data AS (
SELECT '{
{9,"12345"}
, {9,aedrftgy}
, {11,qwedrftgyh}
,{10,qertg}
,{12,qwedfg}
,{9,wedrftgh}
,{13,qwerftgh}
,{8,wertyu}
}'::text[] AS arr
)
SELECT
arr[i][1] AS aspect,
arr[i][2] AS preference
FROM
data,
generate_subscripts((SELECT arr FROM data), 1) i
;
DO
$do$
DECLARE
r record;
r2 record;
n int;
channelId integer;
v_MaxId integer;
platfromSettlementParty text;
v_roles text[] := '{
{9,"zfhcnc''gdthfh"}
, {9,123有限公司}
, {11,3456有限公司}
,{10,467有限公司}
,{12,5678有限公司}
,{9,34567司}
,{13,3456公司}
,{8,23456公司}
}';
BEGIN
for r in (
WITH data AS (
SELECT v_roles::text[] AS arr
)
SELECT * from (SELECT arr[i][1] AS aspect, arr[i][2] AS preference
FROM data, generate_subscripts((SELECT arr FROM data), 1) i) t2
)
LOOP
channelId=CAST(coalesce(r."aspect", '0') AS integer);
platfromSettlementParty=r."preference";
Select max("Id")+1 into v_MaxId from ent."rrte";
IF NOT EXISTS(Select * from ent."rrte" where ent."rrte"."PlatfromSettlementParty"=platfromSettlementParty and ent."rrte"."ChannelId"=channelId limit 1) then
INSERT INTO ent."rrte"("Id",""ChannelId", "PlatfromSettlementParty")
VALUES (v_MaxId,channelId, platfromSettlementParty);
end if;
END LOOP; END;
$do$;

  

  

  

DO
$do$
DECLARE r record;
r2 record;
er record;
eachr record;
n int;
ci integer;
v_MaxId integer;
v_pi integer;
v_bi integer;
v_ci integer;
v_at integer;
psp text;
v_roles text[] := '{
{达有,9,百司,1,''}
{顾问,8,上海,2,''}
}';
BEGIN for r in (
WITH data AS (
SELECT v_roles::text[] AS arr
)
SELECT arr[i][1] AS en, arr[i][2] AS ci, arr[i][3] AS psp,arr[i][4] AS at,arr[i][5] AS am
FROM data, generate_subscripts((SELECT arr FROM data), 1) i
)
LOOP
psp= r."psp";
v_at=CAST(coalesce(r."at", '0') AS integer);
Select max("Id")+1 into v_MaxId from ent."BA"; IF EXISTS(select "Id" from ent."A" as platform WHERE platform."PSP"=r."psp" limit 1)then
select "Id" into v_pi from ent."A" as platform WHERE platform."PSP"=r."psp" limit 1; IF EXISTS(SELECT business."Id" FROM ent."B" as business
INNER join ent."E" as enterprise on business."EI" = enterprise."Id"
where business."BU"=2 and ( enterprise."N"=r."en" or enterprise."EN"=r."en") limit 1)then SELECT business."Id" into v_bi FROM ent."B" as business
INNER join ent."E" as enterprise on business."BI" = enterprise."Id"
where business."BU"=2 and ( enterprise."N"=r."en" or enterprise."EN"=r."en") limit 1; IF NOT EXISTS(
SELECT account."Id", account."BI", account."PI", account."CI", account."AT", account."AM"
FROM ent."BA" as account where account."BI"=v_bi and account."AI"=v_pi
limit 1) then INSERT INTO ent."BA"("Id","BI", "AI", "AT", "AM")
VALUES (v_MaxId, v_bI, v_pt, v_at,r."am");
ELSE
UPDATE ent."BA" as account
SET "AT"=v_at, "AM"=r."am"
where account."BId"=v_bi and account."AId"=v_pi;
end if;
end if;
end if;
END LOOP; END;
$do$; UPDATE ent."BA"
SET "AM"=''
where "AM"='''' ;

  

  

  

  

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