动态SQLEXECUTE IMMEDIATE USING及物化实物图用法
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v_sql := 'DROP MATERIALIZED VIEW mv_fds_GPRS_GGSN_hour_dm';
EXECUTE IMMEDIATE 'INSERT INTO log_gprs_1 (context,content,sql,time) VALUES (:1,:2,:3,sysdate)'
USING 7,'DROP物化视图mv_fds_gprs_ggsn_hour_dm',v_sql;
COMMIT;
EXECUTE IMMEDIATE v_sql;
COMMIT;
END IF;
/*
SELECT COUNT(*) INTO cnt FROM user_mviews WHERE mview_name = 'MV_FDS_GPRS_GGSN_DAY_DM';
IF cnt > 0 THEN
v_sql := 'DROP MATERIALIZED VIEW mv_fds_gprs_ggsn_day_dm';
EXECUTE IMMEDIATE 'INSERT INTO log_gprs_1 (context,content,sql,time) VALUES (:1,:2,:3,sysdate)'
USING 8,'DROP物化视图mv_fds_gprs_ggsn_day_dm',v_sql;
COMMIT;
EXECUTE IMMEDIATE v_sql;
COMMIT;
END IF;
*/
/* 2.拼装视图定义、建立视图 */
-- 小时粒度 DM表物化视图
v_sql := 'CREATE MATERIALIZED VIEW mv_fds_gprs_ggsn_hour_dm
COMPRESS
NOLOGGING
BUILD DEFERRED
REFRESH COMPLETE
--START WITH trunc(SYSDATE,''DD'')+1/24 NEXT trunc(SYSDATE+1,''DD'') + 1/24
AS
SELECT NULL AS timeid,NULL AS statslevel,NULL AS CG,NULL AS ggsnaddr,NULL as file_name,NULL AS apn,NULL AS uplink_traffic ,NULL AS downlink_traffic,NULL AS duration,NULL AS RECORD_CNT FROM dual where 1 = 2';
-- FOR i IN 1 .. daynum LOOP
v_sql := v_sql || '
UNION ALL
--小时粒度
select /*+ PARALLEL(fact_gprs_ggsn_cdr 16) */ a.timeid,a.statslevel,a.cg,b.equi_name,a.file_name,a.apn,a.datavolumegprsuplink,a.datavolumegprsdownlink,a.duration,a.RECORD_CNT from
(SELECT TRUNC(timeid / 100) * 100 AS timeid,60 statslevel,SYSTEM_ID AS CG,ggsnaddress,file_name,UPPER(accesspointnameni) AS APN,sum(datavolumegprsuplink) as datavolumegprsuplink,sum(datavolumegprsdownlink) as datavolumegprsdownlink ,
sum(duration) as duration,COUNT(*) AS RECORD_CNT
FROM fact_gprs_ggsn_cdr partition (PART_' || to_char(SYSDATE - daynum,'yyyymmdd') || ')
GROUP BY TRUNC(timeid / 100) * 100,60,SYSTEM_ID,ggsnaddress,file_name,UPPER(accesspointnameni)
) a,
cfg_gprs_ip b
where a.ggsnaddress=b.equi_ip(+)';
--END LOOP;
EXECUTE IMMEDIATE 'INSERT INTO log_gprs_1 (context,content,sql,time) VALUES (:1,:2,:3,sysdate)'
USING 9,'CREATE物化视图mv_fds_gprs_ggsn_hour_dm',v_sql;
COMMIT;
EXECUTE IMMEDIATE v_sql;
COMMIT;
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