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Oracle 獲取表唯一ID(字串)-函式(按日期)

create or replace function FN_GETSEQNOFIXLEN(v_SEQCODE in varchar2) return varchar2 is
  FunctionResult VARCHAR2(24);
  v_SEQ_PREFIX VARCHAR2(10);
    v_SEQ_DTRULE VARCHAR2(20);
  v_SEQ_SUFFIX VARCHAR2(4);
  v_SEQ_MIN NUMBER(16);
  v_SEQ_MAX NUMBER(16);
  v_SEQ_CUR NUMBER(16);
  v_SEQ_INC NUMBER(2);
  v_SEQ_LOOP_FLG CHAR(
1); PRAGMA AUTONOMOUS_TRANSACTION; begin BEGIN select TC_SEQ_PREFIX,TC_SEQ_SUFFIX,TC_SEQ_MIN,TC_SEQ_MAX,TC_SEQ_CUR,TC_SEQ_INC,TC_SEQ_LOOP_FLG,TC_SEQ_DTRULE into v_SEQ_PREFIX,v_SEQ_SUFFIX,v_SEQ_MIN,v_SEQ_MAX,v_SEQ_CUR,v_SEQ_INC,v_SEQ_LOOP_FLG,v_SEQ_DTRULE from TB_DIC_SEQUENCE
where TC_SEQ_CODE=v_SEQCODE; v_SEQ_CUR:=v_SEQ_CUR+v_SEQ_INC; IF v_SEQ_CUR>=v_SEQ_MAX THEN IF v_SEQ_LOOP_FLG='Y' OR v_SEQ_LOOP_FLG='y' OR v_SEQ_LOOP_FLG='1' THEN v_SEQ_CUR:=v_SEQ_MIN; ELSE v_SEQ_CUR:=NULL; END IF; END IF; IF v_SEQ_CUR IS NOT NULL THEN UPDATE TB_DIC_SEQUENCE SET TC_SEQ_CUR
=v_SEQ_CUR WHERE TC_SEQ_CODE=v_SEQCODE; IF instr(v_SEQ_DTRULE,'yyyy')>0 THEN v_SEQ_DTRULE:=REPLACE(v_SEQ_DTRULE,'yyyy',to_char(SYSDATE,'YYYY')); END IF; IF instr(v_SEQ_DTRULE,'YYYY')>0 THEN v_SEQ_DTRULE:=REPLACE(v_SEQ_DTRULE,'YYYY',to_char(SYSDATE,'YYYY')); END IF; IF instr(v_SEQ_DTRULE,'yy')>0 THEN v_SEQ_DTRULE:=REPLACE(v_SEQ_DTRULE,'yy',to_char(SYSDATE,'YY')); END IF; IF instr(v_SEQ_DTRULE,'YY')>0 THEN v_SEQ_DTRULE:=REPLACE(v_SEQ_DTRULE,'YY',to_char(SYSDATE,'YY')); END IF; IF instr(v_SEQ_DTRULE,'mm')>0 THEN v_SEQ_DTRULE:=REPLACE(v_SEQ_DTRULE,'mm',to_char(SYSDATE,'MM')); END IF; IF instr(v_SEQ_DTRULE,'MM')>0 THEN v_SEQ_DTRULE:=REPLACE(v_SEQ_DTRULE,'MM',to_char(SYSDATE,'MM')); END IF; IF instr(v_SEQ_DTRULE,'dd')>0 THEN v_SEQ_DTRULE:=REPLACE(v_SEQ_DTRULE,'dd',to_char(SYSDATE,'DD')); END IF; IF instr(v_SEQ_DTRULE,'DD')>0 THEN v_SEQ_DTRULE:=REPLACE(v_SEQ_DTRULE,'DD',to_char(SYSDATE,'DD')); END IF; FunctionResult:=v_SEQ_DTRULE||LPAD(to_char(v_SEQ_CUR),length(to_char(v_SEQ_MAX)),'0')||v_SEQ_SUFFIX; COMMIT; ELSE FunctionResult := 'ERR_'||to_char(current_timestamp,'yyyymmddhh24missff6'); END IF; EXCEPTION WHEN NO_DATA_FOUND THEN FunctionResult:='PFM_'||to_char(current_timestamp,'yyyymmddhh24missff6'); WHEN OTHERS THEN FunctionResult := 'OTH_'||to_char(current_timestamp,'yyyymmddhh24missff6'); ROLLBACK; END; return(FunctionResult); end FN_GETSEQNOFIXLEN;