Oracle中通过Function，存储过程，触发器，调用实现解析Clob字段中存在的xml字符串

摘要：接着之前的问题，在Oracle数据库中通过Function，存储过程，触发器实现解析数据表中CLOB大数据字段中存在的xml字符串有时，有个特殊的时间字符串要在数据库格式化处理，之前解析过来的时间字符串是，比如：11OCT141024表示:(日月年时分)，这是一种不规则的时间格式，我们要把它格式化成:(年-月-日 时:分)这样的格式，就的再另外写个Function来特殊处理了，下面我把我的方法写上，关于Oracle中解析Clob字段中的xml字符串的方式请看上一篇博客，地址：http://blog.csdn.net/sxdtzhaoxinguo/article/details/40052783

一：Function.SQL:

CREATE OR REPLACE FUNCTION MIP.FormatDateValue (key VARCHAR2, value VARCHAR2)
   RETURN VARCHAR2
IS
   --定义几个变量，出来解析过来的时间字符串
   --日月年时分(11OCT141024)
   AA       VARCHAR2(32);
   
   DAY      VARCHAR2(32);
   
   MOUNTH   VARCHAR2(32);
   
   YEAR     VARCHAR2(32);
   
   HOUR     VARCHAR2(32);
   
   MINUTE   VARCHAR2(32);
   
   ValueReturn   VARCHAR2 (100);
   
BEGIN

   IF key IS NULL THEN 
   
   ValueReturn := NULL;
   
   RETURN ValueReturn;
   
   ELSE
   
   DAY := SUBSTR(key,0,2);
   MOUNTH := SUBSTR(key,3,3);
   IF INSTR (MOUNTH,'JAN') > 0 THEN
   MOUNTH := 01;
   END IF;
   IF INSTR (MOUNTH,'FEB') > 0 THEN
   MOUNTH := 02;
   END IF;
   IF INSTR (MOUNTH,'MAR') > 0 THEN
   MOUNTH := 03;
   END IF;
   IF INSTR (MOUNTH,'APR') > 0 THEN
   MOUNTH := 04;
   END IF;
   IF INSTR (MOUNTH,'MAY') > 0 THEN
   MOUNTH := 05;
   END IF;
   IF INSTR (MOUNTH,'JUN') > 0 THEN
   MOUNTH := 06;
   END IF;
   IF INSTR (MOUNTH,'JUL') > 0 THEN
   MOUNTH := 07;
   END IF;
   IF INSTR (MOUNTH,'AUG') > 0 THEN
   MOUNTH := 08;
   END IF;
   IF INSTR (MOUNTH,'SEP') > 0 THEN
   MOUNTH := 09;
   END IF;
   IF INSTR (MOUNTH,'OCT') > 0 THEN
   MOUNTH := 10;
   END IF;
   IF INSTR (MOUNTH,'NOV') > 0 THEN
   MOUNTH := 11;
   END IF;
   IF INSTR (MOUNTH,'DEC') > 0 THEN
   MOUNTH := 12;
   END IF;
   YEAR := SUBSTR(key,6,2);
   HOUR := SUBSTR(key,8,2);
   MINUTE := SUBSTR(key,-2);
   AA := 20;
   
   --日月年时分(11OCT141017)
   ValueReturn := AA || YEAR || '-' || MOUNTH || '-' || DAY || ' ' || HOUR || ':' || MINUTE;
   
   RETURN ValueReturn;
   
   END IF;
   
END FormatDateValue;
/

二：存储过程.SQL:

CREATE OR REPLACE PROCEDURE MIP.MIP_PARSE (xmlStr IN CLOB)
IS
   RENO     VARCHAR2 (100);
   AIRLINE  VARCHAR2 (100);
   FFID     VARCHAR2 (100);
   FFID_A   VARCHAR2 (100);
   FFID_D   VARCHAR2 (100);

   ABNS     VARCHAR2 (100);
   ACFT     VARCHAR2 (100);
   CHDT     VARCHAR2 (100);
   EIBT     VARCHAR2 (100);
   FATA     VARCHAR2 (100);
   FETA     VARCHAR2 (100);
   --FFID     VARCHAR2 (100);
   FSTA     VARCHAR2 (100);
   LMDT     VARCHAR2 (100);
   LMUR     VARCHAR2 (100);
   PSTM     VARCHAR2 (100);
   RWAY     VARCHAR2 (100);
   SPOT     VARCHAR2 (100);
   STND     VARCHAR2 (100);

   A_TOBT   VARCHAR2 (100);
   A_WEATHER     VARCHAR2 (100);
   --ABNS     VARCHAR2 (100);
   --ACFT     VARCHAR2 (100);
   ASAT     VARCHAR2 (100);
   BCTM     VARCHAR2 (100);
   BOTM     VARCHAR2 (100);
   BSTM     VARCHAR2 (100);
   C_TOBT   VARCHAR2 (100);
   COBT     VARCHAR2 (100);
   CTOT     VARCHAR2 (100);

   DINT     VARCHAR2 (100);
   DLAB     VARCHAR2 (100);
   DOUT     VARCHAR2 (100);
   EDDI     VARCHAR2 (100);
   EOBT     VARCHAR2 (100);
   EPGT     VARCHAR2 (100);
   EPOT     VARCHAR2 (100);
   FATD     VARCHAR2 (100);
   --FFID     VARCHAR2 (100);
   FSTD     VARCHAR2 (100);
   --LMDT     VARCHAR2 (100);
   --LMUR     VARCHAR2 (100);
   OFTM     VARCHAR2 (100);
   --RENO     VARCHAR2 (100);
   --RWAY     VARCHAR2 (100);
   STDI     VARCHAR2 (100);
   --STND     VARCHAR2 (100);
   TSAT     VARCHAR2 (100);
   
   --定义出港信息表要格式的时间字段
   A_TOBT_D VARCHAR2 (100);
   ASAT_D   VARCHAR2 (100);
   BCTM_D   VARCHAR2 (100);
   BOTM_D   VARCHAR2 (100);
   BSTM_D   VARCHAR2 (100);
   C_TOBT_D VARCHAR2 (100);
   COBT_D   VARCHAR2 (100);
   CTOT_D   VARCHAR2 (100);
   DINT_D   VARCHAR2 (100);
   DOUT_D   VARCHAR2 (100);
   EDDI_D   VARCHAR2 (100);
   EOBT_D   VARCHAR2 (100);
   EPGT_D   VARCHAR2 (100);
   EPOT_D   VARCHAR2 (100);
   FATD_D   VARCHAR2 (100);
   FSTD_D   VARCHAR2 (100);
   LMDT_D   VARCHAR2 (100);
   OFTM_D   VARCHAR2 (100);
   STDI_D   VARCHAR2 (100);
   TSAT_D   VARCHAR2 (100);
   
   --定义进港信息表要格式化的时间字段
   EIBT_A  VARCHAR2 (100);
   FATA_A  VARCHAR2 (100);
   FETA_A  VARCHAR2 (100);
   FSTA_A  VARCHAR2 (100);
   LMDT_A  VARCHAR2 (100);
   PSTM_A  VARCHAR2 (100);
   SPOT_A  VARCHAR2 (100);
   
BEGIN
   RENO := GetXmlNodeValue (xmlStr, 'RENO');
   AIRLINE := GetXmlNodeValue (xmlStr, 'AIRLINE');
   FFID := GetXmlNodeValue (xmlStr, 'FFID');

   ABNS := GetXmlNodeValue (xmlStr, 'ABNS');
   ACFT := GetXmlNodeValue (xmlStr, 'ACFT');
   CHDT := GetXmlNodeValue (xmlStr, 'CHDT');
   EIBT := GetXmlNodeValue (xmlStr, 'EIBT');
   FATA := GetXmlNodeValue (xmlStr, 'FATA');
   FETA := GetXmlNodeValue (xmlStr, 'FETA');
   FFID := GetXmlNodeValue (xmlStr, 'FFID');
   FSTA := GetXmlNodeValue (xmlStr, 'FSTA');
   LMDT := GetXmlNodeValue (xmlStr, 'LMDT');
   LMUR := GetXmlNodeValue (xmlStr, 'LMUR');
   PSTM := GetXmlNodeValue (xmlStr, 'PSTM');
   RWAY := GetXmlNodeValue (xmlStr, 'RWAY');
   SPOT := GetXmlNodeValue (xmlStr, 'SPOT');
   STND := GetXmlNodeValue (xmlStr, 'STND');

   A_TOBT := GetXmlNodeValue (xmlStr, 'A_TOBT');
   A_WEATHER := GetXmlNodeValue (xmlStr, 'A_WEATHER');
   --ABNS := GetXmlNodeValue (xmlStr, 'ABNS');
   --ACFT := GetXmlNodeValue (xmlStr, 'ACFT');
   ASAT := GetXmlNodeValue (xmlStr, 'ASAT');
   BCTM := GetXmlNodeValue (xmlStr, 'BCTM');
   BOTM := GetXmlNodeValue (xmlStr, 'BOTM');
   BSTM := GetXmlNodeValue (xmlStr, 'BSTM');
   C_TOBT := GetXmlNodeValue (xmlStr, 'C_TOBT');
   COBT := GetXmlNodeValue (xmlStr, 'COBT');
   CTOT := GetXmlNodeValue (xmlStr, 'CTOT');

   DINT := GetXmlNodeValue (xmlStr, 'DINT');
   DLAB := GetXmlNodeValue (xmlStr, 'DLAB');
   DOUT := GetXmlNodeValue (xmlStr, 'DOUT');
   EDDI := GetXmlNodeValue (xmlStr, 'EDDI');
   EOBT := GetXmlNodeValue (xmlStr, 'EOBT');
   EPGT := GetXmlNodeValue (xmlStr, 'EPGT');
   EPOT := GetXmlNodeValue (xmlStr, 'EPOT');
   FATD := GetXmlNodeValue (xmlStr, 'FATD');
   FSTD := GetXmlNodeValue (xmlStr, 'FSTD');
   --LMDT := GetXmlNodeValue (xmlStr, 'LMDT');
   --LMUR := GetXmlNodeValue (xmlStr, 'LMUR');
   OFTM := GetXmlNodeValue (xmlStr, 'OFTM');
   STDI := GetXmlNodeValue (xmlStr, 'STDI');
   TSAT := GetXmlNodeValue (xmlStr, 'TSAT');
   
   --出港信息表中时间字段的时间格式函数的用法
   A_TOBT_D := FORMATDATEVALUE (A_TOBT, 'A_TOBT_D');
   ASAT_D := FORMATDATEVALUE (ASAT, 'ASAT_D');
   BCTM_D := FORMATDATEVALUE (BCTM, 'BCTM_D');
   BOTM_D := FORMATDATEVALUE (BOTM, 'BOTM_D');
   BSTM_D := FORMATDATEVALUE (BSTM, 'BSTM_D');
   C_TOBT_D := FORMATDATEVALUE (C_TOBT, 'C_TOBT_D');
   COBT_D := FORMATDATEVALUE (COBT, 'COBT_D');
   CTOT_D := FORMATDATEVALUE (CTOT, 'CTOT_D');
   DINT_D := FORMATDATEVALUE (DINT, 'DINT_D');
   DOUT_D := FORMATDATEVALUE (DOUT, 'DOUT_D');
   EDDI_D := FORMATDATEVALUE (EDDI, 'EDDI_D');
   EOBT_D := FORMATDATEVALUE (EOBT, 'EOBT_D');
   EPGT_D := FORMATDATEVALUE (EPGT, 'EPGT_D');
   EPOT_D := FORMATDATEVALUE (EPOT, 'EPOT_D');
   FATD_D := FORMATDATEVALUE (FATD, 'FATD_D');
   FSTD_D := FORMATDATEVALUE (FSTD, 'FSTD_D');
   LMDT_D := FORMATDATEVALUE (LMDT, 'LMDT_D');
   OFTM_D := FORMATDATEVALUE (OFTM, 'OFTM_D');
   STDI_D := FORMATDATEVALUE (STDI, 'STDI_D');
   TSAT_D := FORMATDATEVALUE (TSAT, 'TSAT_D');
   
   --进港信息表中时间字段的时间格式函数的用法
   EIBT_A := FORMATDATEVALUE (EIBT, 'EIBT_A');
   FATA_A := FORMATDATEVALUE (FATA, 'FATA_A');
   FETA_A := FORMATDATEVALUE (FETA, 'FETA_A');
   FSTA_A := FORMATDATEVALUE (FSTA, 'FSTA_A');
   LMDT_A := FORMATDATEVALUE (LMDT, 'LMDT_A');
   PSTM_A := FORMATDATEVALUE (PSTM, 'PSTM_A');
   SPOT_A := FORMATDATEVALUE (SPOT, 'SPOT_A');
   
   IF INSTR(FFID,'-D-') > 0 THEN
   
    --FFID_D := FFID;
    
    --截取航班号
    FFID_D := SUBSTR(FFID,INSTR(FFID,'-',1)+1,INSTR(FFID,'-',INSTR(FFID,'-',1)+1)-INSTR(FFID,'-',1)-1);
    
    INSERT INTO TB_CMS_FLGTINFO_D (ID,A_TOBT,A_WEATHER,ABNS,ACFT,AIRLINE,ASAT,BCTM,BOTM,BSTM,C_TOBT,COBT,CTOT,DINT,DLAB,DOUT,EDDI,EOBT,EPGT,EPOT,FATD,FFID,FSTD,LMDT,LMUR,OFTM,RENO,RWAY,STDI,STND,TSAT)
     VALUES   (FLGTINFO_D_SEQ.NEXTVAL,
               A_TOBT_D,
               A_WEATHER,
               ABNS,
               ACFT,
               AIRLINE,
               ASAT_D,
               BCTM_D,
               BOTM_D,
               BSTM_D,
               C_TOBT_D,
               COBT_D,
               CTOT_D,
               DINT_D,
               DLAB,
               DOUT_D,
               EDDI_D,
               EOBT_D,
               EPGT_D,
               EPOT_D,
               FATD_D,
               FFID_D,
               FSTD_D,
               LMDT_D,
               LMUR,
               OFTM_D,
               RENO,
               RWAY,
               STDI_D,
               STND,
               TSAT_D);
   
   ELSE
   
    --FFID_A := FFID;
    
     FFID_A := SUBSTR(FFID,INSTR(FFID,'-',1)+1,INSTR(FFID,'-',INSTR(FFID,'-',1)+1)-INSTR(FFID,'-',1)-1);
    
    INSERT INTO TB_CMS_FLGTINFO_A (ID,ABNS,ACFT,AIRLINE,CHDT,FFID,RENO,EIBT,FATA,FETA,FSTA,LMDT,LMUR,PSTM,RWAY,SPOT,STND)
     VALUES   (FLGTINFO_A_SEQ.NEXTVAL,
               ABNS,
               ACFT,
               AIRLINE,
               CHDT,
               FFID_A,
               RENO,
               EIBT_A,
               FATA_A,
               FETA_A,
               FSTA_A,
               LMDT_A,
               LMUR,
               PSTM_A,
               RWAY,
               SPOT_A,
               STND);
   
   END IF;


   
    
   
   
  
   COMMIT;
EXCEPTION
   WHEN OTHERS
   THEN
      DBMS_OUTPUT.PUT_LINE (SQLERRM);
END MIP_PARSE;
/

三：以上就是改进后的sql语句;

四：详情请看：http://blog.csdn.net/sxdtzhaoxinguo/article/details/40052783