문자열 마스킹

-- ====================================================================== -- SP 이름: 문자열 마스킹(F_MaskingText) -- ====================================================================== DROP FUNCTION IF EXISTS F_MaskingText(text, text, text, text) CASCADE; CREATE OR REPLACE FUNCTION F_MaskingText( i_pattern text , i_txt text , i_conv_txt text , i_option text ) RETURNS character varying AS $BODY$ DECL..