oracle 存储过程创建表分区

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CREATE OR REPLACE PROCEDURE BIP_MMS_PARTITION_PROC AS

  v_Mms_Task_Tab    VARCHAR2(50); --表名
  v_Mms_Content_Tab VARCHAR2(50);
  v_Mms_User_Tab    VARCHAR2(50);
  v_TableSpace      VARCHAR2(20); --表空间
  v_PartPreFlag     VARCHAR2(50); --分区名标识
  v_SqlCursor       NUMBER; --游标
  v_SqlExec         VARCHAR2(2000); --执行语句
  v_PartPreDate     VARCHAR2(20); --分区日期
  v_RangeValue      NUMBER;
  v_RangeDate       NUMBER;
  v_Rows            NUMBER(30) := 0;
  v_Num             NUMBER(30) := 0;
  vErrInfo          VARCHAR2(200);
  p_DateFrom        NUMBER;
  p_PartNum         NUMBER;
  p_Range           NUMBER;
BEGIN

  v_Mms_Task_Tab    := 'BIP_MMS_MT_TASK_LOG_TAB_TEST';
  v_Mms_Content_Tab := 'BIP_MMS_MT_CONTENT_TAB_TEST';
  v_Mms_User_Tab    := 'BIP_MMS_MT_USER_LOG_TAB_TEST';
  -- 读取配置参数
  BEGIN
    SELECT TO_NUMBER(VALUE)
      INTO p_DateFrom
      FROM BIP_OTHERS_PROPERTIES_TAB
     WHERE NAME = 'p_DateFrom';
    SELECT TO_NUMBER(VALUE)
      INTO p_PartNum
      FROM BIP_OTHERS_PROPERTIES_TAB
     WHERE NAME = 'p_PartNum';
    SELECT TO_NUMBER(VALUE)
      INTO p_Range
      FROM BIP_OTHERS_PROPERTIES_TAB
     WHERE NAME = 'p_Range';
  EXCEPTION
    WHEN OTHERS THEN
      BEGIN
        p_DateFrom := 0;
        p_PartNum  := 1;
        p_Range    := 180;
      END;
  END;
  --记录存储过程添加分区
  INSERT INTO BIP_LOG_STAT_EXEC_TAB
  VALUES
    (TO_CHAR(SYSDATE,'yyyymmddhh24miss'),'BIP_MMS_PARTITION_PROC_ADD','BEGIN');
  COMMIT;
  --ADD PARTITION 
  FOR i IN 1 .. p_PartNum LOOP
    --BIP_MMS_MT_CONTENT_TAB 添加分区
    v_PartPreDate := TO_CHAR(SYSDATE + p_DateFrom + i,'YYYYMMDD');
    dbms_output.put_line(v_PartPreDate);
    v_Num         := 0;
    v_TableSpace  := 'BIP_MMS_TS_TEST';
    v_PartPreFlag := 'MMS_MT_CONTENT';
    SELECT COUNT(*)
      INTO v_Num
      FROM user_tab_partitions
     WHERE table_name = v_Mms_Content_Tab
       AND SUBSTR(partition_name,16,8) = v_PartPreDate;
    IF v_Num < 1 THEN
      v_RangeDate  := TO_CHAR(SYSDATE + p_DateFrom + i,'YYYYMMDD');
      v_RangeValue := v_RangeDate || '240000';
      dbms_output.put_line(v_RangeValue);
      v_SqlExec := 'ALTER TABLE ' || v_Mms_Content_Tab || ' ADD PARTITION ' ||
                   v_PartPreFlag || '_' || v_PartPreDate ||
                   ' VALUES LESS THAN(''' || v_RangeValue ||
                   ''') TABLESPACE ' || v_TableSpace;
      dbms_output.put_line(v_SqlExec);
      v_SqlCursor := DBMS_SQL.OPEN_CURSOR;
      DBMS_SQL.PARSE(v_SqlCursor,v_SqlExec,DBMS_SQL.NATIVE);
      v_Rows := DBMS_SQL.EXECUTE(v_SqlCursor);
      DBMS_SQL.CLOSE_CURSOR(v_SqlCursor);
    END IF;
    --BIP_MMS_MT_TASK_LOG_TAB_TEST 添加分区
    v_PartPreDate := TO_CHAR(SYSDATE + p_DateFrom + i,'YYYYMMDD');
    v_Num         := 0;
    v_TableSpace  := 'BIP_MMS_TS_TEST';
    v_PartPreFlag := 'MMS_MT_TASK_LOG';
    SELECT COUNT(*)
      INTO v_Num
      FROM user_tab_partitions
     WHERE table_name = v_Mms_Task_Tab
       AND SUBSTR(partition_name,17,'YYYYMMDD');
      v_RangeValue := v_RangeDate || '240000';
      v_SqlExec    := 'ALTER TABLE ' || v_Mms_Task_Tab || ' ADD PARTITION ' ||
                      v_PartPreFlag || '_' || v_PartPreDate ||
                      ' VALUES LESS THAN(''' || v_RangeValue ||
                      ''') TABLESPACE ' || v_TableSpace;
      dbms_output.put_line(v_SqlExec);
      v_SqlCursor := DBMS_SQL.OPEN_CURSOR;
      DBMS_SQL.PARSE(v_SqlCursor,DBMS_SQL.NATIVE);
      v_Rows := DBMS_SQL.EXECUTE(v_SqlCursor);
      DBMS_SQL.CLOSE_CURSOR(v_SqlCursor);
    END IF;
    --BIP_MMS_MT_USER_LOG_TAB_TEST 添加分区
    v_PartPreDate := TO_CHAR(SYSDATE + p_DateFrom + i,'YYYYMMDD');
    v_Num         := 0;
    v_TableSpace  := 'BIP_MMS_TS_TEST';
    v_PartPreFlag := 'MMS_MT_USER_LOG';
    SELECT COUNT(*)
      INTO v_Num
      FROM user_tab_partitions
     WHERE table_name = v_Mms_User_Tab
       AND SUBSTR(partition_name,'YYYYMMDD');
      v_RangeValue := v_RangeDate || '240000';
      v_SqlExec    := 'ALTER TABLE ' || v_Mms_User_Tab || ' ADD PARTITION ' ||
                      v_PartPreFlag || '_' || v_PartPreDate ||
                      ' VALUES LESS THAN(''' || v_RangeValue ||
                      ''') TABLESPACE ' || v_TableSpace;
      dbms_output.put_line(v_SqlExec);
      v_SqlCursor := DBMS_SQL.OPEN_CURSOR;
      DBMS_SQL.PARSE(v_SqlCursor,DBMS_SQL.NATIVE);
      v_Rows := DBMS_SQL.EXECUTE(v_SqlCursor);
      DBMS_SQL.CLOSE_CURSOR(v_SqlCursor);
    END IF;
  END LOOP;
  COMMIT;

  INSERT INTO BIP_LOG_STAT_EXEC_TAB
  VALUES
    (TO_CHAR(SYSDATE,'END');
  COMMIT;

  --DELETE PARTITION
  INSERT INTO BIP_LOG_STAT_EXEC_TAB
  VALUES
    (TO_CHAR(SYSDATE,'BIP_MMS_PARTITION_PROC_DEL','BEGIN');
  COMMIT;

  BEGIN
    v_PartPreFlag := 'MMS_MT_CONTENT' || '_' ||
                     TO_CHAR(SYSDATE - p_Range,'yyyymmdd');
    dbms_output.put_line(v_PartPreFlag);
    v_SqlExec := 'ALTER TABLE ' || v_Mms_Content_Tab ||
                 ' TRUNCATE PARTITION ' || v_PartPreFlag;
    dbms_output.put_line(v_SqlExec);
    v_SqlCursor := DBMS_SQL.OPEN_CURSOR;
    DBMS_SQL.PARSE(v_SqlCursor,DBMS_SQL.NATIVE);
    v_Rows := DBMS_SQL.EXECUTE(v_SqlCursor);
    DBMS_SQL.CLOSE_CURSOR(v_SqlCursor);
    dbms_output.put_line(v_PartPreFlag || ' truncated');
  
    v_SqlExec := 'ALTER TABLE ' || v_Mms_Content_Tab || ' DROP PARTITION ' ||
                 v_PartPreFlag;
    dbms_output.put_line(v_SqlExec);
    v_SqlCursor := DBMS_SQL.OPEN_CURSOR;
    DBMS_SQL.PARSE(v_SqlCursor,DBMS_SQL.NATIVE);
    v_Rows := DBMS_SQL.EXECUTE(v_SqlCursor);
    DBMS_SQL.CLOSE_CURSOR(v_SqlCursor);
    dbms_output.put_line(v_PartPreFlag || ' dropped');
  END;

  BEGIN
    v_PartPreFlag := 'MMS_MT_TASK_LOG' || '_' ||
                     TO_CHAR(SYSDATE - p_Range,'yyyymmdd');
    dbms_output.put_line(v_PartPreFlag);
    v_SqlExec := 'ALTER TABLE ' || v_Mms_Task_Tab || ' TRUNCATE PARTITION ' ||
                 v_PartPreFlag;
    dbms_output.put_line(v_SqlExec);
    v_SqlCursor := DBMS_SQL.OPEN_CURSOR;
    DBMS_SQL.PARSE(v_SqlCursor,DBMS_SQL.NATIVE);
    v_Rows := DBMS_SQL.EXECUTE(v_SqlCursor);
    DBMS_SQL.CLOSE_CURSOR(v_SqlCursor);
    dbms_output.put_line(v_PartPreFlag || ' truncated');
  
    v_SqlExec   := 'ALTER TABLE ' || v_Mms_Task_Tab || ' DROP PARTITION ' ||
                   v_PartPreFlag;
    v_SqlCursor := DBMS_SQL.OPEN_CURSOR;
    DBMS_SQL.PARSE(v_SqlCursor,DBMS_SQL.NATIVE);
    v_Rows := DBMS_SQL.EXECUTE(v_SqlCursor);
    DBMS_SQL.CLOSE_CURSOR(v_SqlCursor);
    dbms_output.put_line(v_PartPreFlag || ' dropped');
  END;

  BEGIN
    v_PartPreFlag := 'MMS_MT_USER_LOG' || '_' ||
                     TO_CHAR(SYSDATE - p_Range,'yyyymmdd');
    dbms_output.put_line(v_PartPreFlag);
    v_SqlExec := 'ALTER TABLE ' || v_Mms_User_Tab || ' TRUNCATE PARTITION ' ||
                 v_PartPreFlag;
    dbms_output.put_line(v_SqlExec);
    v_SqlCursor := DBMS_SQL.OPEN_CURSOR;
    DBMS_SQL.PARSE(v_SqlCursor,DBMS_SQL.NATIVE);
    v_Rows := DBMS_SQL.EXECUTE(v_SqlCursor);
    DBMS_SQL.CLOSE_CURSOR(v_SqlCursor);
    dbms_output.put_line(v_PartPreFlag || ' truncated');
  
    v_SqlExec   := 'ALTER TABLE ' || v_Mms_User_Tab || ' DROP PARTITION ' ||
                   v_PartPreFlag;
    v_SqlCursor := DBMS_SQL.OPEN_CURSOR;
    DBMS_SQL.PARSE(v_SqlCursor,DBMS_SQL.NATIVE);
    v_Rows := DBMS_SQL.EXECUTE(v_SqlCursor);
    DBMS_SQL.CLOSE_CURSOR(v_SqlCursor);
    dbms_output.put_line(v_PartPreFlag || ' dropped');
  END;

  COMMIT;

  INSERT INTO BIP_LOG_STAT_EXEC_TAB
  VALUES
    (TO_CHAR(SYSDATE,'END');
  COMMIT;
EXCEPTION
  WHEN OTHERS THEN
    BEGIN
      ROLLBACK;
      dbms_output.put_line(TO_CHAR(SQLCODE));
      vErrInfo := SUBSTR(SQLERRM,1,200);
      dbms_output.put_line(TO_CHAR(vErrInfo));
      INSERT INTO BIP_LOG_STAT_EXEC_TAB
      VALUES
        (TO_CHAR(SYSDATE,'BIP_MMS_PARTITION_PROC_ERROR',vErrInfo);
      COMMIT;
    END;
  
end bip_mms_partition_proc;

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