일상지식 더하기

알고 있으면 편리한 쿼리 SELECT ( CASE WHEN COLUMN_ID=1 THEN ' ' ELSE ', ' END ) || ATC.COLUMN_NAME AS COLUMN_NAME /* 컬럼명 */, '/* ' || ACC.COMMENTS || ' */' AS COLUMN_NAME_COMMENT, DATA_TYPE/* 데이터타입 */, CASE --WHEN DATA_TYPE='VARCHAR2' THEN '(' || DATA_LENGTH || ')'--WHEN DATA_TYPE='CHAR' THEN '(' || DATA_LENGTH || ')'WHEN DATA_TYPE='NUMBER' THEN '(' || DATA_PRECISION || ')'ELSE '(' || DATA_LENGTH || ')' E..