DB/오라클

카멜표기법 변환(+resultMap)

lavender1122 2024. 3. 29. 10:05

템플릿

/
create or replace FUNCTION FN_GETCAMEL(COLUMN_NAME IN VARCHAR2)
RETURN VARCHAR2
IS
RSLT VARCHAR2(30);
BEGIN
--카멜표기로 변환(SITE_NUM -> siteNum)
SELECT LOWER(SUBSTR(REPLACE(INITCAP(COLUMN_NAME),'_'),1,1))
|| SUBSTR(REPLACE(INITCAP(COLUMN_NAME),'_'),2) INTO RSLT
FROM DUAL;
--리턴
RETURN RSLT;
END;
/

--구글 카멜변환(https://heavenly-appear.tistory.com/270)
SELECT COLUMN_NAME
, DATA_TYPE
, CASE WHEN DATA_TYPE='NUMBER' THEN 'private int ' || FN_GETCAMEL(COLUMN_NAME) || ';'
WHEN DATA_TYPE IN('VARCHAR2','CHAR') THEN 'private String ' || FN_GETCAMEL(COLUMN_NAME) || ';'
WHEN DATA_TYPE='DATE' THEN 'private Date ' || FN_GETCAMEL(COLUMN_NAME) || ';'
ELSE 'private String ' || FN_GETCAMEL(COLUMN_NAME) || ';'
END AS CAMEL_CASE
, '<result property="'||FN_GETCAMEL(COLUMN_NAME)||'" column="'||COLUMN_NAME||'"/>' RESULTMAP
FROM ALL_TAB_COLUMNS
WHERE TABLE_NAME = '테이블이름(대문자)'
AND       USER = '사용자이름(대문자)';

 

예시

FN_GETCAMEL 함수등록

/
create or replace FUNCTION FN_GETCAMEL(COLUMN_NAME IN VARCHAR2)
RETURN VARCHAR2
IS
RSLT VARCHAR2(30);
BEGIN
--카멜표기로 변환(SITE_NUM -> siteNum)
SELECT LOWER(SUBSTR(REPLACE(INITCAP(COLUMN_NAME),'_'),1,1))
|| SUBSTR(REPLACE(INITCAP(COLUMN_NAME),'_'),2) INTO RSLT
FROM DUAL;
--리턴
RETURN RSLT;
END;
/

실행

--구글 카멜변환(https://heavenly-appear.tistory.com/270)
SELECT COLUMN_NAME
, DATA_TYPE
, CASE WHEN DATA_TYPE='NUMBER' THEN 'private int ' || FN_GETCAMEL(COLUMN_NAME) || ';'
WHEN DATA_TYPE IN('VARCHAR2','CHAR') THEN 'private String ' || FN_GETCAMEL(COLUMN_NAME) || ';'
WHEN DATA_TYPE='DATE' THEN 'private Date ' || FN_GETCAMEL(COLUMN_NAME) || ';'
ELSE 'private String ' || FN_GETCAMEL(COLUMN_NAME) || ';'
END AS CAMEL_CASE
, '<result property="'||FN_GETCAMEL(COLUMN_NAME)||'" column="'||COLUMN_NAME||'"/>' RESULTMAP
FROM ALL_TAB_COLUMNS
WHERE TABLE_NAME = 'PRODUCT'
AND       USER = 'PC15_2';

TABLE_NAME : 

user


원본

/
create or replace FUNCTION FN_GETCAMEL(COLUMN_NAME IN VARCHAR2)
RETURN VARCHAR2
IS
RSLT VARCHAR2(30);
BEGIN
--카멜표기로 변환(SITE_NUM -> siteNum)
SELECT LOWER(SUBSTR(REPLACE(INITCAP(COLUMN_NAME),'_'),1,1))
|| SUBSTR(REPLACE(INITCAP(COLUMN_NAME),'_'),2) INTO RSLT
FROM DUAL;
--리턴
RETURN RSLT;
END;
/

--구글 카멜변환(https://heavenly-appear.tistory.com/270)
SELECT COLUMN_NAME
, DATA_TYPE
, CASE WHEN DATA_TYPE='NUMBER' THEN 'private int ' || FN_GETCAMEL(COLUMN_NAME) || ';'
WHEN DATA_TYPE IN('VARCHAR2','CHAR') THEN 'private String ' || FN_GETCAMEL(COLUMN_NAME) || ';'
WHEN DATA_TYPE='DATE' THEN 'private Date ' || FN_GETCAMEL(COLUMN_NAME) || ';'
ELSE 'private String ' || FN_GETCAMEL(COLUMN_NAME) || ';'
END AS CAMEL_CASE
, '<result property="'||FN_GETCAMEL(COLUMN_NAME)||'" column="'||COLUMN_NAME||'"/>' RESULTMAP
FROM ALL_TAB_COLUMNS
WHERE TABLE_NAME = 'PRODUCT'
AND       USER = 'PC15_2';