【性能脚本】psql数据库存储过程构造方法

原创已于 2023-10-18 13:51:49 修改 · 218 阅读

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#java #数据库 #mysql

于 2023-10-18 09:43:40 首次发布

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本文介绍了在PostgreSQL14.5中使用psql的时间函数处理日期，如获取下月第一天、上月第一天等，并展示了一个创建用于车辆检验历史记录的存储过程实例。

1、数据库版本：PostgreSQL 14.5

2、psql时间函数：

-- 日期：下个月当天 2023-03-10

SELECT to_date((to_char(( now() + interval '1 month'),'YYYY-MM-DD')),'YYYY-MM-DD')

-- 日期：下个月第一天 2023-03-01

SELECT to_date((to_char(( now() + interval '1 month'),'YYYY-MM-01')),'YYYY-MM-DD')

-- 日期：上个月第一天 2023-01-01

SELECT to_date((to_char(( now() + interval '-1 month'),'YYYY-MM-01')),'YYYY-MM-DD')

-- 日期：本月底 2023-02-28

SELECT (to_date((to_char(( now() + interval '1 month'),'YYYY-MM-01')),'YYYY-MM-DD')-1)::date

SELECT CAST (now() AS timestamp)

SELECT now(),current_timestamp,current_date,current_time,localtime,loca1ltimestamp;

select now() + interval '1 min';

select now() + interval '1 days';

select now() + interval '1 month';

select now() + interval '1 years';

select to_char(now(),'yyyymmddHHMMSS')

3、psql存过实例：

CREATE OR REPLACE PROCEDURE "public"."histable"()
AS $BODY$BEGIN
do $$
   declare
       i INTEGER := 10000;
       vehicleId VARCHAR(36);
       checkintime TIMESTAMP;
       checkouttime TIMESTAMP;
       declarationNo VARCHAR(50);
       licensePlateNo VARCHAR(100);
       licensePlateNoBack VARCHAR(100);
       taskid VARCHAR(32);
       measurevehicleId VARCHAR(32);
       seqid VARCHAR(32);
       uuId VARCHAR(36);

   BEGIN
       WHILE i <= 109999 LOOP
       i = i + 1;
       SELECT INTO vehicleId to_char(now()+ interval '-1 month','yyyymmdd')||CEIL(random()*(1000000000000000-1)+1);
       SELECT INTO measurevehicleId 'M'||ceil(random()*(1000000000000000-1)+1);
       SELECT INTO checkintime CAST(now()+ interval '-1 month' AS timestamp);
       SELECT INTO checkouttime CAST(now()+ interval '-1 month' + '1 min' AS timestamp);
       SELECT INTO declarationNo 'DN'||floor(random()*(1000000000-1)+1);
       SELECT INTO licensePlateNo 'la' || ceil(random()*(10000000000-1)+1);
       SELECT INTO licensePlateNoBack 'lb' || ceil(random()*(10000000000-1)+1);
       SELECT INTO taskid 'Alakoll'||ceil(random()*(100000000000000-1)+1);
SELECT INTO uuId 'UUID'||ceil(random()*(100000000000000-1)+1);
-- SELECT INTO uuId gen_random_uuid();
--        vehicleId := CEIL(random()*(1000000000000000-1)+1);
--        measurevehicleId := 'M'||ceil(random()*(1000000000000000-1)+1);
--        checkintime := CAST(now() AS timestamp);
--        checkouttime := CAST(now() + '1 min' AS timestamp);
--        declarationNo := floor(random()*(1000000000-1)+1);
--        licensePlateNo := 'la' || ceil(random()*(10000000000-1)+1);
--        licensePlateNoBack := 'lb' || ceil(random()*(10000000000-1)+1);
--        taskid := 'Alakoll'||ceil(random()*(10000000000-1)+1);
--        seqid := to_char(now(),'yyyymmddHHMMSS');
--    uuId := gen_random_uuid();

       INSERT INTO "public"."VEHICLE_INSPECTED_HIS" ("ID", "ALARM_LOGISTICS", "ALARM_TIMEOUT", "ANIMAL_CONCLUSION_TYPE", "ANIMAL_OPERATION_USER_NAME", "ARC_COUNT", "ASYCUDA_CODE", "BLACK_VEHICLE", "BUSINESS_TYPE", "CHECK_IN_ARRIVAL_TIME", "CHECK_IN_TIME", "CHECK_OUT_ARRIVAL_TIME", "CHECK_OUT_TIME", "COMBINE_STATUS", "CONCLUSION_REMARK", "CONCLUSION_TYPE", "CONTAINER_NUMBER", "CREATION_TIME", "DC_CONCLUSION_TIME", "DECLARATION_NUMBER", "DEST_PORT_CODE", "DEST_PORT_NUMBER", "DIRECTION", "ENTRY_TUNNEL", "HEALTH_CONCLUSION_TYPE", "HEALTH_OPERATION_USER_NAME", "INSPECTED_PORT_CODE", "INSPECTED_PORT_NUMBER", "JOINT_INSPECTION_TIME", "LICENSE_PLATE_NUMBER", "LICENSE_PLATE_NUMBER_BACK", "LOCKED", "LOCKED_TIME", "LOCKED_USER_ACCOUNT", "LOCKED_USER_ID", "LOCKED_USER_NAME", "LOGISTICS", "LOGISTICS_FINISH", "LOGISTICS_REQUEST", "NORMAL_END", "OPERATION_TIME", "OPERATION_USER_ACCOUNT", "OPERATION_USER_ID", "OPERATION_USER_NAME", "ORIGIN_PORT_CODE", "ORIGIN_PORT_NUMBER", "ORIGIN_VEHICLE_ID", "PI_CONCLUSION_TIME", "PLANT_CONCLUSION_TYPE", "PLANT_OPERATION_USER_NAME", "LANE_NUMBER", "SITE", "RELEASE", "RELEASE_CONFIRM_TIME", "RFID_NUMBER", "RISK_LEVEL", "SUSPICION_MARK", "SYN_STATUS", "TRAILER", "TRANSFERED_CENTRE", "TRANSIPORT_CONCLUSION_TYPE", "VEHICLE_HEIGHT", "VEHICLE_LENGTH", "VEHICLE_STATUS", "VEHICLE_TYPE", "VEHICLE_WEIGHT", "VEHICLE_WIDTH", "XRAY_PRIP_SUCCESS", "XRAY_SAVE_PATH", "XRAY_SCAN", "XRAY_SCAN_END_TIME", "XRAY_SCAN_ID", "XRAY_SCAN_START_TIME", "DCIN_MODE", "PRD_ALARM", "SENDED_CENTRE", "ADDED_PIN", "XRAY_SCAN_STATUS", "DCIN_CONCLUSION_TYPE", "PIN_CONCLUSION_TYPE", "ARC_FACTOR_TYPE", "SEIZED_POSITION", "SEIZED_GOODS", "ANIMAL_LOCK_USER_ACCOUNT", "HEALTH_LOCK_USER_ACCOUNT", "MEASURE", "MEASURE_FINISH", "PLANT_LOCK_USER_ACCOUNT", "SELECT_LANE", "TASK_ID", "WHITE_LIST", "XRAY_SCAN_FINISH", "PLAN_LANENUMBER", "DC_EXPORT_COUNT", "SCAN_MODE", "PLAN_LANENUMBER_SCAN_MODE", "PRINT_COUNT", "SCAN_RESULT") VALUES (vehicleId, 'f', 'f', 'PASSED', 'wgp', NULL, NULL, 'f', 'EXPORT', checkintime, checkintime, NULL, checkouttime, 'f', 'No Suspect', 'RELEASE', 'SIIU8005669,SIIU6033094', checkintime, checkouttime, declarationNo, NULL, NULL, 'EXPORT', 'f', 'PASSED', 'wgp', 'Alakol', '10002', NULL, licensePlateNo, licensePlateNoBack, 'f', NULL, NULL, NULL, NULL, 'f', 'f', 'f', 't', checkouttime, 'wgp', '7a4ae50c-c255-4206-95f2-9aaef19e816f', 'wgp', 'Alakol', '10002', NULL, NULL, 'PASSED', 'wgp', '1', 'ICIA', 't', checkouttime, NULL, NULL, 'f', 'f', 'f', 'f', 'PASSED', NULL, NULL, 'FINISHCHECKED', 'TRUCK', NULL, NULL, 't', '/nii/97201MB02/2021/0608/97201MB0220210608003/', 't', checkintime, '97201MB0220210608003', checkintime, 'LOCAL', 'f', NULL, NULL, 'f', 'PASS', NULL, NULL, NULL, NULL, NULL, NULL, 't', 't', NULL, 'SCAN', taskid, NULL, 't', '1', 0, 'FS', 'J', 0, 'SUCCESS');

       INSERT INTO "public"."VEHICLE_INSPECTION_HIS" ("ID", "CONCLUSION_REMARK", "CONCLUSION_TYPE", "CREATION_TIME", "END_TIME", "INSPECTION_STEP", "LICENSE_PLATE_NUMBER", "MODIFY_TIME", "MODIFY_USER_ACCOUNT", "MODIFY_USER_ID", "MODIFY_USER_NAME", "OPERATION_TIME", "OPERATION_USER_ACCOUNT", "OPERATION_USER_ID", "OPERATION_USER_NAME", "PASS", "START_TIME", "VEHICLE_ID") VALUES (uuId||'a', '通过', 'PASSED', checkintime, checkouttime, 'ANIMALCHECK', NULL, NULL, NULL, NULL, NULL, checkintime, 'wgp3', 'd30b62af-879e-4996-af1a-0cd74c632c5d', 'wgp3', 't', checkintime, vehicleId);

INSERT INTO "public"."VEHICLE_INSPECTION_HIS" ("ID", "CONCLUSION_REMARK", "CONCLUSION_TYPE", "CREATION_TIME", "END_TIME", "INSPECTION_STEP", "LICENSE_PLATE_NUMBER", "MODIFY_TIME", "MODIFY_USER_ACCOUNT", "MODIFY_USER_ID", "MODIFY_USER_NAME", "OPERATION_TIME", "OPERATION_USER_ACCOUNT", "OPERATION_USER_ID", "OPERATION_USER_NAME", "PASS", "START_TIME", "VEHICLE_ID") VALUES (uuId||'b', '通过', 'PASSED', checkintime, checkouttime, 'PLANTCHECK', NULL, NULL, NULL, NULL, NULL, checkintime, 'wgp3', 'd30b62af-879e-4996-af1a-0cd74c632c5d', 'wgp3', 't', checkintime, vehicleId);

INSERT INTO "public"."VEHICLE_INSPECTION_HIS" ("ID", "CONCLUSION_REMARK", "CONCLUSION_TYPE", "CREATION_TIME", "END_TIME", "INSPECTION_STEP", "LICENSE_PLATE_NUMBER", "MODIFY_TIME", "MODIFY_USER_ACCOUNT", "MODIFY_USER_ID", "MODIFY_USER_NAME", "OPERATION_TIME", "OPERATION_USER_ACCOUNT", "OPERATION_USER_ID", "OPERATION_USER_NAME", "PASS", "START_TIME", "VEHICLE_ID") VALUES (uuId||'c', '通过', 'PASSED', checkintime, checkouttime, 'HEALTHCHECK', NULL, NULL, NULL, NULL, NULL, checkintime, 'wgp3', 'd30b62af-879e-4996-af1a-0cd74c632c5d', 'wgp3', 't', checkintime, vehicleId);

INSERT INTO "public"."VEHICLE_INSPECTION_HIS" ("ID", "CONCLUSION_REMARK", "CONCLUSION_TYPE", "CREATION_TIME", "END_TIME", "INSPECTION_STEP", "LICENSE_PLATE_NUMBER", "MODIFY_TIME", "MODIFY_USER_ACCOUNT", "MODIFY_USER_ID", "MODIFY_USER_NAME", "OPERATION_TIME", "OPERATION_USER_ACCOUNT", "OPERATION_USER_ID", "OPERATION_USER_NAME", "PASS", "START_TIME", "VEHICLE_ID") VALUES (uuId||'d', '遣返', 'REPATRIATE', checkintime, checkouttime, 'TRAFFICCONFIRM', licensePlateNo, NULL, NULL, NULL, NULL, checkintime, 'wgp3', 'd30b62af-879e-4996-af1a-0cd74c632c5d', 'wgp3', 't', checkintime, vehicleId);

END LOOP;
END $$;
END$BODY$
LANGUAGE plpgsql