Le problème de l'incohérence des cas entre les champs de vue créés dans la base de données Dameng et le SQL

1. Il existe une instruction de création de table de vue comme suit :

CREATE OR REPLACE VIEW "ASSET"."ip_area_view"
AS
SELECT
bbb."ID" as id,
bbb."IP" as ip ,
bbb."SECURITY_DOMAIN_NAME" as security_domain_name
,
bbb."COUNTRY" as country,
bbb."AREA" as area,
SUBSTRING(SUBSTRING(bbb."LONGITUDE_LATITUDE" FROM 1 FOR POSITION(' ' IN bbb."LONGITUDE_LATITUDE") - 1) FROM POSITION('经' IN SUBSTRING(bbb."LONGITUDE_LATITUDE" FROM 1 FOR POSITION(' ' IN bbb."LONGITUDE_LATITUDE") - 1)) + 1
) AS longitude,
SUBSTRING(
SUBSTRING(bbb."LONGITUDE_LATITUDE" FROM POSITION(' ' IN bbb."LONGITUDE_LATITUDE") + 1)
FROM POSITION('纬' IN SUBSTRING(bbb."LONGITUDE_LATITUDE" FROM POSITION(' ' IN bbb."LONGITUDE_LATITUDE") + 1)) + 1
) AS latitude,
bbb."IS_INTRANET" as is_intranet,
bbb."res_domain_id" AS res_domain_id
FROM
(
SELECT
md5( concat ( dev."dev_core_ipv4", sec."safe_name" ) ) AS id,
dev."dev_core_ipv4" AS ip,
CASE
WHEN sec."safe_name" IS NULL THEN
'未知安全域' ELSE sec."safe_name"
END AS security_domain_name,
'中国' AS country,
dev."dev_owner_area" AS area,
CASE
            WHEN org."longitude_latitude" IS NOT NULL THEN
                org."longitude_latitude"
            WHEN org."longitude_latitude" IS NULL AND dev."dev_owner_area" IS NOT NULL THEN
                ( SELECT bbb_1."longitude_latitude" FROM "ASSET"."asset_device" aaa INNER JOIN "ASSET"."dmss_area" bbb_1 ON aaa."dev_owner_area"  = bbb_1."area"  LIMIT 1 ) ELSE NULL
END AS longitude_latitude,
CASE

Copy
			WHEN sec."safe_type" = 1 THEN 1
			WHEN sec."safe_type" = 2 THEN	0 ELSE 2
END AS is_intranet,
sec."res_domain_id"
FROM
"ASSET"."asset_device" dev
LEFT JOIN "ASSET"."asset_organization" org ON dev."org_id" = org."id"
LEFT JOIN "A

2. Pour afficher les noms de champs dans la vue correspondante, utilisez SQL comme suit :

 SELECT COLUMN_NAME
FROM USER_TAB_COLUMNS
WHERE TABLE_NAME = 'ip_area_view'

Le résultat est le suivant :

 tout en majuscule

3. Utilisez "" pour ajuster la sortie du champ comme suit :

CREATE OR REPLACE VIEW "ASSET"."ip_area_view"
AS
SELECT
	bbb."id" ,
	bbb."ip",
	bbb."security_domain_name",
	bbb."country",
	bbb."area",
	SUBSTRING (
		SUBSTRING ( bbb."longitude_latitude" FROM 1 FOR POSITION ( ' ' IN bbb."longitude_latitude" ) - 1 ) 
	FROM
		POSITION ( '经' IN SUBSTRING ( bbb."longitude_latitude" FROM 1 FOR POSITION ( ' ' IN bbb."longitude_latitude" ) - 1 ) ) + 1 
	) AS "longitude",
	SUBSTRING (
		SUBSTRING ( bbb."longitude_latitude" FROM POSITION ( ' ' IN bbb."longitude_latitude" ) + 1 ) 
	FROM
		POSITION ( '纬' IN SUBSTRING ( bbb."longitude_latitude" FROM POSITION ( ' ' IN bbb."longitude_latitude" ) + 1 ) ) + 1 
	) AS "latitude",
	bbb."is_intranet",
	bbb."res_domain_id" 
FROM
	(
	SELECT
		md5( concat ( dev."dev_core_ipv4", sec."safe_name" ) ) AS "id",
		dev."dev_core_ipv4" AS "ip",
	CASE
			
			WHEN sec."safe_name" IS NULL THEN
			'未知安全域' ELSE sec."safe_name" 
		END AS "security_domain_name",
		'中国' AS "country",
		dev."dev_owner_area" AS "area",
	CASE
			
			WHEN org."longitude_latitude" IS NOT NULL THEN
			org."longitude_latitude" 
			WHEN org."longitude_latitude" IS NULL 
			AND dev."dev_owner_area" IS NOT NULL THEN
				( SELECT bbb_1."longitude_latitude" FROM "ASSET"."asset_device" aaa INNER JOIN "ASSET"."dmss_area" bbb_1 ON aaa."dev_owner_area" = bbb_1."area" LIMIT 1 ) ELSE NULL 
				END AS "longitude_latitude",
		CASE
				
				WHEN sec."safe_type" = 1 THEN
				1 
				WHEN sec."safe_type" = 2 THEN
				0 ELSE 2 
			END AS "is_intranet",
			sec."res_domain_id" AS "res_domain_id"
			
		FROM
			"ASSET"."asset_device" dev
			LEFT JOIN "ASSET"."asset_organization" org ON dev."org_id" = org."id"
		LEFT JOIN "ASSET"."asset_safety_margin" sec ON dev."safety_margin_id" = sec."id" 
	) bbb;

Tout est en minuscules et les données de navigation sont les suivantes :

 enregistre-le