DROP PROCEDURE DB2USER.TOOLS_PARTITION_TABLE_SHOW (VARCHAR ());CREATE OR REPLACE PROCEDURE Tools_partition_table_show(IN ETL_DATE VARCHAR(8))/******************************************************************************NAME:PURPOSE:REVISIONS:Ver        Date        Author        Description---------  ----------  ------------  ------------------------------------1.0        2015-07-22  Zen        1. 作为分区表添加和快速删除分区的一个示例供有相同需求的脚本参考。******************************************************************************/LANGUAGE SQL
BEGINDECLARE V_LOCATION VARCHAR(100);DECLARE V_START_TIME TIMESTAMP;DECLARE V_SQLMSG VARCHAR(255);DECLARE V_CNT INT;DECLARE V_PARTITION_NAME VARCHAR(50);DECLARE V_PARTITION_END VARCHAR(50);DECLARE EXIT HANDLER FOR SQLEXCEPTION                                                                                        BEGIN                                                                                                                     GET DIAGNOSTICS EXCEPTION 1 V_SQLMSG = MESSAGE_TEXT;                                                                      CALL DB2USER.PRO_LOG(ETL_DATE,'Tools_partition_table_show','测试分区表作业方式',V_START_TIME,current timestamp,'ERROR',V_LOCATION,V_SQLMSG);                                                                            END;/*清空目标表*/ SET V_START_TIME = current timestamp;SET V_LOCATION = '清空数据';/*DELETE FROM DB2USER.S_CLM_RATE_POL_AAA WHERE BBQ = SUBSTR(ETL_DATE,1,6);COMMIT;*/SET V_LOCATION = '测试保单赔率表的抽取开始';SET V_PARTITION_NAME = 'P'||SUBSTR(ETL_DATE,1,6);SET V_PARTITION_END = TO_CHAR(add_months(TO_DATE(ETL_DATE,'YYYYMMDD'),1),'YYYYMM');--SELECT TO_CHAR(add_months(TO_DATE(ETL_DATE,'YYYYMMDD'),1),'YYYYMM') INTO V_PARTITION_END FROM sysibm.dual;--判断分区是否存在，如果存在，数据转出删除SELECT COUNT(*) INTO V_CNT FROM syscat.datapartitions t WHERE tabschema='DB2USER' AND tabname='S_CLM_RATE_POL_AAA_TEST'AND datapartitionname=V_PARTITION_NAME ;IF V_CNT=1 THEN     -- 分区数据转出EXECUTE IMMEDIATE 'ALTER TABLE S_CLM_RATE_POL_AAA_test DETACH PARTITION '||V_PARTITION_NAME||' INTO DB2USER.TEMP_S_CLM_RATE_POL_AAA';COMMIT;EXECUTE IMMEDIATE 'DROP TABLE DB2USER.TEMP_S_CLM_RATE_POL_AAA';END IF ;SET V_LOCATION = 'after 分区数据转出';--非正常DML或DDL 需要调用 sysproc.admin_cmd();--收集统计信息CALL SYSPROC.ADMIN_CMD('RUNSTATS ON TABLE db2user.S_CLM_RATE_POL_AAA_test');-- 添加新分区EXECUTE IMMEDIATE 'ALTER  TABLE  DB2USER.S_CLM_RATE_POL_AAA_test ADD PARTITION '||V_PARTITION_NAME||' STARTING '||SUBSTR(ETL_DATE,1,6)||' INCLUSIVE ENDING '||V_PARTITION_END||' exclusive';SET V_LOCATION = 'after 添加新分区';COMMIT;EXECUTE IMMEDIATE 'ALTER TABLE DB2USER.S_CLM_RATE_POL_AAA_test ACTIVATE  NOT  LOGGED  INITIALLY';FOR REC AS WITH TMP(TYPE) AS (SELECT 'AAA1' AS TYPE FROM SYSIBM.DUALUNION ALLSELECT 'AAA2' AS TYPE  FROM SYSIBM.DUALUNION ALLSELECT 'AAA4' AS TYPE  FROM SYSIBM.DUAL)SELECT * FROM TMPDOSET V_LOCATION = 'test'||REC.TYPE;INSERT INTO DB2USER.S_CLM_RATE_POL_AAA_testSELECT......END FOR;CALL DB2USER.PRO_LOG(ETL_DATE,'Tools_partition_table_show','测试分区表作业方式',V_START_TIME,current timestamp,'SUCCESS','','');
END;